RE: Voice Over Internet [7:61467]
Hi Neil, I am doing voice over IP over the Interet with one remote location with a 512k ADSL connection and VPN with PPTP. The voice quality is extremely good, with no echos, delays etc... I am using netmeeting for the voice over ip application and Windows 2000 server on both location as the VPN servers. Clients are Windows 2000 Professional workstations. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=61469t=61467 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Please check my logic: ospf / frame-relay / broadcast [7:60715]
On a non broadcast network, using the keyword neighbour will allow the DR to start the adjacency with the indicated neighbours. Once the adjacency is completed, all ospf traffic between neighbours will be unicast. Therefore on such networks, you do not need to add the keyword broadcast on the frame-relay map statement for OSPF to work. [ However not having the keyword broadcast may affect other network functions that depend on the broadcast traffic, therefore it is a good idea to put the keyword broadcast in the frame-map statement]. Any flaw in my logic? Evidence: (you can see here that r1 is sending to r2 (10.10.1.2 ) , r3 (10.10.1.3) and r5 (10.10.10.5) via unicast. You can see that r2 is responded with unicast. r1#debug ip pac 08:26:51: IP: s=10.10.1.1 (local), d=10.10.1.3 (Serial0/0.1), len 76, sending 08:26:51: IP: s=10.10.1.1 (local), d=10.10.1.5 (Serial0/0.1), len 76, sending 08:26:51: IP: s=10.10.1.1 (local), d=10.10.1.2 (Serial0/0.1), len 76, sending 08:26:51: IP: s=10.1.1.1 (local), d=224.0.0.5 (Ethernet0/0), len 64, sending broad/multica r1#debug frame pack int ser 0/0.1 08:32:51: Serial0/0.1(o): dlci 103(0x1871), NLPID 0x3CC(IP), datagramsize 80 08:32:51: Serial0/0.1(o): dlci 105(0x1891), NLPID 0x3CC(IP), datagramsize 80 08:32:51: Serial0/0.1(o): dlci 102(0x1861), NLPID 0x3CC(IP), datagramsize 80 --- on R2# 08:43:16: IP: s=10.10.1.1 (Serial0/0), d=10.10.1.2, len 76, rcvd 0 08:43:25: IP: s=10.10.1.2 (local), d=10.10.1.1 (Serial0/0), len 68, sending 08:43:25: IP: s=137.20.20.1 (local), d=224.0.0.5 (Ethernet0/0), len 64, sending broad/mult icast - router configuration r1#show run int ser 0/0.1 Building configuration... Current configuration : 198 bytes ! interface Serial0/0.1 multipoint ip address 10.10.1.1 255.255.0.0 ip ospf priority 200 frame-relay map ip 10.10.1.2 102 frame-relay map ip 10.10.1.3 103 frame-relay map ip 10.10.1.5 105 end r2#show run int ser 0/0 Building configuration... Current configuration : 216 bytes ! interface Serial0/0 ip address 10.10.1.2 255.255.0.0 encapsulation frame-relay IETF ip ospf priority 0 ip policy route-map 10 clockrate 128000 frame-relay map ip 10.10.1.1 201 frame-relay lmi-type ansi r3#show run int ser 0/1 Building configuration... Current configuration : 216 bytes ! interface Serial0/1 ip address 10.10.1.3 255.255.0.0 encapsulation frame-relay IETF ip ospf priority 0 ip policy route-map 10 clockrate 128000 frame-relay map ip 10.10.1.1 301 frame-relay lmi-type ansi r5#show run int ser 6/0 Building configuration... Current configuration : 222 bytes ! interface Serial6/0 ip address 10.10.1.5 255.255.0.0 encapsulation frame-relay IETF ip ospf priority 0 ip policy route-map 10 serial restart-delay 0 frame-relay map ip 10.10.1.1 501 frame-relay lmi-type ansi end Thank you, Pierre-Alex Guanel Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=60715t=60715 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT: CCIE LAB Study partner - UK [7:60116]
Happy New Year group study members ... Is anyone currently studying for the CCIE Lab in the UK? I have 9 Cisco routers / ISDN simulator / most of the CCIE Preparation library and plenty of hands-on experience under my belt and 12 PC to generate plenty of traffic. I am looking for a study partner with ATM, Catalyst 3550 switches and Voice Equipment or someone willing to share the expense of buying those gears. Please contact me off-line if you are interested. My lab is scheduled for October 29 2003. Thank you, Pierre-Alex Guanel tel +44 (0)1695 725408 [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=60116t=60116 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Catalyst 1600 Token Ring Report - [7:56671]
After a very long trial and error procedure and a bit of luck, I finally figured this switch out! There are no commands to setup VLANS from the command-line on this switch. You must use the TrueView Manager software which is available for free download at: http://www.madge.com/downloads-software-archived.asp Once on the page above, you want to download from the link: Smart Ringswitch Software R4.3 - Dec 00 (for RS Plus and RS Express only) When you open the download, the software will install automatically. The rest is obvious Pierre-Alex NB. This switch run the same code as the SmartRing Switch from Madge. If want a full documentation of the Cisco 1600 Token Ring Switch (since Cisco Documentation on this Switch is very slim), you should go to the Madge Web site. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=56671t=56671 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
O.T: CCIE Lab Partner - England. [7:56378]
Anyone studying for their CCIE LAB in the Manchester / Liverpool area? I have gears books. Let's talk offline: [EMAIL PROTECTED] Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=56378t=56378 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
BGP Best Path Algorithm -- Trick [7:56356]
OK, from Cisco http://www.cisco.com/warp/public/459/25.shtml Step 3: Prefer the path that was locally originated via a network or aggregate BGP subcommand, or through redistribution from an IGP. Local paths sourced by network/redistribute commands are preferred over local aggregates sourced by the aggregate-address command. Step 4: Prefer the path with the shortest AS_PATH Step 5: Prefer the path with the lowest origin type: IGP is lower than EGP, and EGP is lower than INCOMPLETE My question: In step 3 if a path is locally originated within a AS, it's path will always be shorter than any path learned through over means. So what is the rational for this step? I bet it is used in some trick configuration and I admit I have run out of imagination... Any hint would be greatly appreciated. Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=56356t=56356 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP Best Path Algorithm -- Trick [7:56356]
Sorry about the bad grammar. I must have been tired. Here is the same message again hopefully without typos. OK, from Cisco http://www.cisco.com/warp/public/459/25.shtml Step 3: Prefer the path that was locally originated via a network or aggregate BGP subcommand, or through redistribution from an IGP. Local paths sourced by network/redistribute commands are preferred over local aggregates sourced by the aggregate-address command. Step 4: Prefer the path with the shortest AS_PATH Step 5: Prefer the path with the lowest origin type: IGP is lower than EGP, and EGP is lower than INCOMPLETE - My question: In step 3, if a path is locally originated within a AS, its path will always be shorter than any path learned through other means. So what is the rational for this step? I bet it is used in some trick configuration, and I admit I have run out of imagination... Any hint would be greatly appreciated. Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=56361t=56356 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Catalyst 1600 - Token Ring VLAN [7:56185]
I am trying to do this on a Catalyst 1600: port 1, port 2, port 3: in vlan 1 port 4, port 5, port 6: in vlan 2 port 7 and port 8: in vlan 3 If you know how to do this would you please give me a hand? (Yes, I have read the (rather slim) documentation ...) Thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=56185t=56185 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Outlets England [7:53864]
Great Britain Wiring I got to England after a long 15-hour trip ... On my arrival I immediately went to a Electric shop to buy British Power Cord. Those are relatively cheap about 2 pounds something each, but I needed 12 of those for my equipment. The lad other there was very kind, he told me that I could make my own cord from my American Power cord using a socket that only cost half a pound. Here how it goes in England: Green or Yellow is grown Blue or Blank is neutral Brown or Red is live The process is pretty simple but quite time consumming: with a sharp knife to strip the wires, a flat screw driver and a Philips screw driver I made a plug every 10 minutes) I also bought surge protectors at the store. They are not cheap out there (about 8 pounds for a 4-plugs surge protector and 12 pounds for 6-plugs). Basically my total cost of conversion was: 6 pounds for the plugs + 48 pounds for the surge protectors (less than $100) ... Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=55087t=53864 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT: Outlets England [7:53864]
I was hoping to find an UPS or surge protector that would work with both US and UK, but after thinking, might be easier to find something when I get there. Thanks anyway. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=53939t=53864 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT: Outlets England [7:53864]
I am moving to England next week (with my Cisco rack). Are the outlets in England the same shape as the US? Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=53864t=53864 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Outlets England [7:53864]
Thanks! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=53868t=53864 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: configuring catalyst 1200 [7:52319]
Tim, I have a Catalyst 1600 and I had the same problem. Here is the work around I used: 1) I attached a modem to the console 2 I dialed in 3) I assigning an IP address 3) I disconnected and connected to the switch via telnet Try this with your 1200 ... Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=52330t=52319 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP loop [7:51169]
Responding to my second questions: Is this to prevent loops? Well, there is no loop here because neither R2 nor R0 would have received their local AS in the AS_PATH! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51183t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP loop [7:51169]
Everything I have read seems to indicate that R0 and R2 should have received 2 paths to the 172.16.0.0 network. I did a clear ip bgp * on R0. And I got the expected result: Network Next HopMetric LocPrf Weight Path * 172.16.0.0 10.10.4.1 0 103 102 101 i * 10.10.5.10 0 101 i Then I cleared R2. R2 did not get the extra route. Here is R2 Network Next HopMetric LocPrf Weight Path * 172.16.0.0 10.10.1.20 0 101 i Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51184t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP loop [7:51169]
When I cleared R2, not only did I NOT get the extra path but I lost the second path on R0. Here is R0 (after clearing R2) Network Next HopMetric LocPrf Weight Path * 172.16.0.0 10.10.5.10 0 101 Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51185t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP loop [7:51169]
Still thinking aloud: it seems that the problem is located at R3. When I do a show bgp summary on R2 it apppears that it did not receive any prefix from R3 NeighborVAS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 10.10.1.2 4 10112771269200 00:04:321 10.10.2.2 4 10312661277200 00:01:330 Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51186t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP loop [7:51169]
On my previous post I said that the problem was on R3. It could also have been on R2, if R2 rejected the update I used a debug on R2 to locate the problem. R3 did send the update but R2 rejected it. Please note the keyword withdrawn at the end of the output below: R2# 1d11h: %BGP-5-ADJCHANGE: neighbor 10.10.1.2 Down User reset 1d11h: %BGP-5-ADJCHANGE: neighbor 10.10.2.2 Down User reset 1d11h: %BGP-5-ADJCHANGE: neighbor 10.10.1.2 Up 1d11h: BGP(0): 10.10.1.2 computing updates, afi 0, neighbor version 0, table version 1, starting at 0.0.0.0 1d11h: BGP(0): 10.10.1.2 update run completed, afi 0, ran for 0ms, neighbor version 0 , start version 1, throttled to 1 1d11h: BGP(0): 10.10.1.2 rcvd UPDATE w/ attr: nexthop 10.10.1.2, origin i, metric 0, path 101 1d11h: BGP(0): 10.10.1.2 rcvd 172.16.0.0/16 1d11h: BGP(0): Revise route installing 172.16.0.0/16 - 10.10.1.2 to main IP table 1d11h: %BGP-5-ADJCHANGE: neighbor 10.10.2.2 Up 1d11h: BGP(0): 10.10.2.2 computing updates, afi 0, neighbor version 0, table version 2, starting at 0.0.0.0 1d11h: BGP(0): 10.10.2.2 send UPDATE (format) 172.16.0.0/16, next 10.10.2.1, metric 0 , path 101 1d11h: BGP(0): 10.10.2.2 1 updates enqueued (average=46, maximum=46) 1d11h: BGP(0): 10.10.2.2 update run completed, afi 0, ran for 12ms, neighbor version 0, start version 2, throttled to 2 1d11h: BGP(0): 10.10.2.2 rcvd UPDATE w/ attr: nexthop 10.10.2.2, origin i, path 103 1 00 101 1d11h: BGP(0): 10.10.2.2 rcvd 172.16.0.0/16 1d11h: BGP(0): 10.10.1.2 computing updates, afi 0, neighbor version 1, table version 2, starting at 0.0.0.0 1d11h: BGP(0): 10.10.1.2 update run completed, afi 0, ran for 0ms, neighbor version 1 , start version 2, throttled to 2 1d11h: BGP(0): 10.10.2.2 rcv UPDATE about 172.16.0.0/16 -- withdrawn Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51188t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP loop [7:51169]
More supsense R3 sent an update but the message was that 172.16.0.0/16 is unreacheable. That should explain why R2 did not accept the update! R3# 1d11h: %BGP-5-ADJCHANGE: neighbor 10.10.2.1 Down User reset 1d11h: %BGP-5-ADJCHANGE: neighbor 10.10.3.1 Down User reset 1d12h: %BGP-5-ADJCHANGE: neighbor 10.10.2.2 Down Peer closed the session 1d11h: %BGP-5-ADJCHANGE: neighbor 10.10.3.1 Up 1d11h: BGP(0): 10.10.3.1 computing updates, afi 0, neighbor version 0, table version 1, starting at 0.0.0.0 1d11h: BGP(0): 10.10.3.1 update run completed, afi 0, ran for 0ms, neighbor version 0 , start version 1, throttled to 1 1d11h: BGP(0): 10.10.3.1 rcvd UPDATE w/ attr: nexthop 10.10.4.2, origin i, localpref 50, path 100 101 1d11h: BGP(0): 10.10.3.1 rcvd 172.16.0.0/16 1d11h: BGP(0): Revise route installing 172.16.0.0/16 - 10.10.4.2 to main IP table 1d11h: BGP(0): 10.10.3.1 computing updates, afi 0, neighbor version 1, table version 2, starting at 0.0.0.0 1d11h: BGP(0): 10.10.3.1 update run completed, afi 0, ran for 0ms, neighbor version 1 , start version 2, throttled to 2 1d11h: %BGP-5-ADJCHANGE: neighbor 10.10.2.1 Up 1d12h: %BGP-5-ADJCHANGE: neighbor 10.10.2.2 Up 1d11h: BGP(0): 10.10.2.1 computing updates, afi 0, neighbor version 0, table version 2, starting at 0.0.0.0 1d11h: BGP(0): 10.10.2.1 send UPDATE (format) 172.16.0.0/16, next 10.10.2.2, metric 0 , path 100 101 1d11h: BGP(0): 10.10.2.1 1 updates enqueued (average=48, maximum=48) 1d11h: BGP(0): 10.10.2.1 update run completed, afi 0, ran for 12ms, neighbor version 0, start version 2, throttled to 2 1d11h: BGP(0): 10.10.2.1 rcvd UPDATE w/ attr: nexthop 10.10.2.1, origin i, path 102 1 01 1d11h: BGP(0): 10.10.2.1 rcvd 172.16.0.0/16 1d11h: BGP(0): Revise route installing 172.16.0.0/16 - 10.10.2.1 to main IP table 1d11h: BGP(0): 10.10.3.1 computing updates, afi 0, neighbor version 2, table version 3, starting at 0.0.0.0 1d11h: BGP(0): 10.10.3.1 NEXT_HOP part 1 net 172.16.0.0/16, next 10.10.2.1 1d11h: BGP(0): 10.10.3.1 send UPDATE (format) 172.16.0.0/16, next 10.10.2.1, metric 0 , path 102 101 1d11h: BGP(0): 10.10.3.1 1 updates enqueued (average=53, maximum=53) 1d11h: BGP(0): 10.10.3.1 update run completed, afi 0, ran for 16ms, neighbor version 2, start version 3, throttled to 3 1d11h: BGP(0): 10.10.2.1 computing updates, afi 0, neighbor version 2, table version 3, starting at 0.0.0.0 1d11h: BGP(0): 10.10.2.1 send unreachable 172.16.0.0/16 1d11h: BGP(0): 10.10.2.1 send UPDATE 172.16.0.0/16 -- unreachable 1d11h: BGP(0): 10.10.2.1 1 updates enqueued (average=26, maximum=26) 1d11h: BGP(0): 10.10.2.1 update run completed, afi 0, ran for 8ms, neighbor version 2 , start version 3, throttled to 3 [Resuming connection 1 to r4 ... ] On my next post, I will attempt to explain why the network was unreacheable! Any one wants to guess? Gheese, am I playing alone? :) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51189t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP loop [7:51169]
Stuck! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51190t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Fwd: Re: BGP loop [7:51169]
Hey Pete, Thanks for the explaination. It does make sense now! There were two things I was not aware of: 1) Routers prefers the EBGP routes due to E vs I preference 2) You are only allowed to advertise your best path for a particular NLRI I went back to my books and tried to find references on the first point. This is what I found: (Doyle, TCP IP vol2 : page 115) 1) Prefer path with the highest administrative weight 2) Prefer path with highest Local_Pref value 3) Prefer path originated locally i.e. from an IGP 4) Prefer path with shortest AS_Path 5) Prefer path with lowerst origin code 6) Prefer path with lowest multi_exit_disc value 7) Prefer EBGP paths over IBGP path 8) Prefer path with shortest path to bgp next_hop 9 install equal-cost routes in the Loc-RIB (maximum-path enabled) 10)prefer path with lowest BGP router ID (maximum-path not enabled) There is no mention of EBGP path versus IBGP. Worse, if I was to go by the rules above I would have to conclude that R4 should have chosen the path via AS102 because of the highest LocPref. (see below) R4sib BGP table version is 3, local router ID is 192.168.250.4 Status codes: s suppressed, d damped, h history, * valid, best, i - internal Origin codes: i - IGP, e - EGP, ? - incomplete Network Next HopMetric LocPrf Weight Path * 172.16.0.0 10.10.4.2 0 100 101 i * i 10.10.2.1 100 0 102 101 i There must be a set of rules out there that precede the rules above ... Where did you learn about those? Are they published some place? Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51202t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Fwd: Re: BGP loop [7:51169]
Hi Pete, Here is the reference for rule 2: You are only allowed to advertise your best path for a particular NLRI Internet Routing Architecture (Second Edition), Sam Halabi page 155 The best routes, as identified by the decision process, are placed in the Loc-RIB. These routes become candidates that can be advertised to other peers or placed in the IP routing table. If a route is not placed int he Loc-RIB, it cannot be placed in the Adj-RIB-Out for advertisement to peers Still looking for a reference to Rule 1 Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51203t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Fwd: Re: BGP loop [7:51169]
Thanks Pete!!! I will spend more time reading the rfcs. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51215t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: break via reverse telnet [7:51192]
That's correct... If you want to use a different escape character use the command escape-character followed by the ASCII number Example: config t line vty 0 4 escape-character 1 where: 1=A 2=B 3=C etc... Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51216t=51192 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
BGP loop [7:51169]
This is the network: AS101(R1) --- AS102 (R2) --- AS103 (R3)--- (R4)-AS100(R0) to AS101 (R1) (R3 and R4 are IBGP neighbors) I have route 172.16.0.0 on AS101 (R1) that is advertised via BGP. When i do a show ip bgp, the only routers that have two paths to 172.16.0.0 are R3 and R4. R0 and and R2 only have on path Given that I have a loop, I would have expected R0 to also have a path to 172.16.0.0 via As103 and R2 to also have a path to 172.16.0.0 via AS103. Do I have a configuration problem or is this the default behavior of BGP that it won't accept another path if it already has the information from a directly connected neighbor? Is this to prevent loops? Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=51169t=51169 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay NNI -- [7:49849]
I was not aware of this requirement. Thank you!!! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=49890t=49849 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Frame-Relay NNI -- [7:49849]
My frame-relay switch died, so I put 2 1700 routers back-to-back to get enough interfaces. I made sure to use the interface type nni between the two 1700, yet it looks like the two frame-relay switches are not talking to each other. Anyone try this trick before. This is what I get: frame2#show ro frame2#show frame route Input Intf Input Dlci Output Intf Output Dlci Status Serial0 501 Serial1 301 inactive Serial0 502 Serial1 302 inactive Serial0 503 Serial1 303 inactive Serial1 301 Serial0 501 active Serial1 302 Serial0 502 active Serial1 303 Serial0 503 active frame2# frame1#show frame % Incomplete command. frame1#show frame ro Input Intf Input Dlci Output Intf Output Dlci Status Serial0 101 Serial3 501 inactive Serial1 102 Serial3 502 inactive Serial2 103 Serial3 503 inactive Serial3 501 Serial0 101 active Serial3 502 Serial1 102 active Serial3 503 Serial2 103 active frame1# [Resuming connection 2 to frame2 ... ] frame2#show frame ro Input Intf Input Dlci Output Intf Output Dlci Status Serial0 501 Serial1 301 inactive Serial0 502 Serial1 302 inactive Serial0 503 Serial1 303 inactive Serial1 301 Serial0 501 active Serial1 302 Serial0 502 active Serial1 303 Serial0 503 active frame2# -- and here are my configs --- frame1#show run Building configuration... Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname frame1 ! enable secret 5 $1$8trQ$MA9cUOeNwYnOmOPZsav8D0 ! ! ! ! ! memory-size iomem 25 ip subnet-zero ip host frame2 2005 192.168.250.8 ! frame-relay switching ! ! process-max-time 200 ! interface Loopback0 ip address 192.168.250.8 255.255.255.255 no ip directed-broadcast ! interface Serial0 description CHI bandwidth 1544 no ip address no ip directed-broadcast encapsulation frame-relay no ip mroute-cache keepalive 1 fair-queue 64 32 0 cdp enable frame-relay lmi-type cisco frame-relay intf-type dce frame-relay route 101 interface Serial3 501 ! interface Serial1 description SJ no ip address no ip directed-broadcast encapsulation frame-relay frame-relay intf-type dce frame-relay route 102 interface Serial3 502 ! interface Serial2 description ROCH no ip address no ip directed-broadcast encapsulation frame-relay clockrate 128000 frame-relay intf-type dce frame-relay route 103 interface Serial3 503 ! interface Serial3 no ip address no ip directed-broadcast encapsulation frame-relay clockrate 128000 frame-relay intf-type nni frame-relay route 501 interface Serial0 101 frame-relay route 502 interface Serial1 102 frame-relay route 503 interface Serial2 103 ! interface FastEthernet0 no ip address no ip directed-broadcast shutdown ! ip classless no ip http server ! ! line con 0 transport input none escape-character 9 line aux 0 no exec transport input all line vty 0 4 password cisco login ! no scheduler allocate end frame1# --- frame2# frame2# frame2#show run Building configuration... Current configuration: ! version 12.0 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname frame2 ! enable secret 5 $1$Obxi$tJ7NyXAUQyrCbx6hvtcBr1 ! ! ! ! ! memory-size iomem 25 ip subnet-zero ip host switch 2005 192.168.250.10 ! frame-relay switching ! ! process-max-time 200 ! interface Loopback0 ip address 192.168.250.10 255.255.255.255 no ip directed-broadcast ! interface Serial0 no ip address no ip directed-broadcast encapsulation frame-relay no ip mroute-cache no fair-queue cdp enable frame-relay intf-type nni frame-relay route 501 interface Serial1 301 frame-relay route 502 interface Serial1 302 frame-relay route 503 interface Serial1 303 ! interface Serial1 no ip address no ip directed-broadcast encapsulation frame-relay frame-relay lmi-type cisco frame-relay intf-type dce frame-relay route 301 interface Serial0 501 frame-relay route 302 interface Serial0 502 frame-relay route 303 interface Serial0 503 ! interface Serial2 no ip address no ip directed-broadcast shutdown ! interface Serial3 no ip address no ip directed-broadcast shutdown ! interface FastEthernet0 no ip
Bus Error [7:49592]
I have had bus errors on my Cisco 4000 router. I ran a memory diagnostic on memory addresses 0x0004 to 0x067F which should have covered tests for DRAM lower location, boot EPROM, Flash EPROM, and DRAM upper location as well as Onboard ressources and system IO ( http://www.cisco.com/warp/public/112/appB.html#4000 ) The result of the test seems to indicate that my DRAM (lower location) is OK but that the main board of the router is defective? Is my interpretation correct? t m Memory/Bus diagnostic Starting Address [0x1000]? 0x0004 Ending Address [0x100]? 0x067F Hex argument for variable tests [0x]? Select Tests [all]? Number of passes to run [2]? Trigger word for hardare debugging [0]? Message Level (0=silence, 1=summary, 2=normal)[2]? Testing addresses between 0x4 and 0x67f Begin pass 0, test 0 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202 in test number 0 while attempting short read at add ress: 0x202 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020002 in test number 0 while attempting short read at add ress: 0x2020002 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020004 in test number 0 while attempting short read at add ress: 0x2020004 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020006 in test number 0 while attempting short read at add ress: 0x2020006 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020008 in test number 0 while attempting short read at add ress: 0x2020008 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202000a in test number 0 while attempting short read at add ress: 0x202000a SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202000c in test number 0 while attempting short read at add ress: 0x202000c SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202000e in test number 0 while attempting short read at add ress: 0x202000e SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020010 in test number 0 while attempting short read at add ress: 0x2020010 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020012 in test number 0 while attempting short read at add ress: 0x2020012 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020014 in test number 0 while attempting short read at add ress: 0x2020014 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020016 in test number 0 while attempting short read at add ress: 0x2020016 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020018 in test number 0 while attempting short read at add ress: 0x2020018 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202001a in test number 0 while attempting short read at add ress: 0x202001a SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202001c in test number 0 while attempting short read at add ress: 0x202001c SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address
Hardware Diagnostic - How to interpret [7:49431]
I have had bus errors on my Cisco 4000 router. I ran a memory diagnostic on memory addresses 0x0004 to 0x067F which should have covered tests for DRAM lower location, boot EPROM, Flash EPROM, and DRAM upper location as well as Onboard ressources and system IO ( http://www.cisco.com/warp/public/112/appB.html#4000 ) The result of the test seems to indicate that my DRAM (lower location) is OK but that the main board of the router is defective? Is my interpretation correct? t m Memory/Bus diagnostic Starting Address [0x1000]? 0x0004 Ending Address [0x100]? 0x067F Hex argument for variable tests [0x]? Select Tests [all]? Number of passes to run [2]? Trigger word for hardare debugging [0]? Message Level (0=silence, 1=summary, 2=normal)[2]? Testing addresses between 0x4 and 0x67f Begin pass 0, test 0 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202 in test number 0 while attempting short read at add ress: 0x202 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020002 in test number 0 while attempting short read at add ress: 0x2020002 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020004 in test number 0 while attempting short read at add ress: 0x2020004 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020006 in test number 0 while attempting short read at add ress: 0x2020006 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020008 in test number 0 while attempting short read at add ress: 0x2020008 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202000a in test number 0 while attempting short read at add ress: 0x202000a SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202000c in test number 0 while attempting short read at add ress: 0x202000c SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202000e in test number 0 while attempting short read at add ress: 0x202000e SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020010 in test number 0 while attempting short read at add ress: 0x2020010 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020012 in test number 0 while attempting short read at add ress: 0x2020012 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020014 in test number 0 while attempting short read at add ress: 0x2020014 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020016 in test number 0 while attempting short read at add ress: 0x2020016 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x2020018 in test number 0 while attempting short read at add ress: 0x2020018 SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202001a in test number 0 while attempting short read at add ress: 0x202001a SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202001c in test number 0 while attempting short read at add ress: 0x202001c SSW: 0x76d, B pipe: 0xb491, C pipe: 0x5491 Bus Error control register: 0x0fb0 non-local memory transaction timeout system overtemp local memory transaction timeout at address 0x202001e in test number 0 while attempting short read at add ress:
RE: Voice of IP / Frame-Relay and remote labs [7:48947]
Manish, I think you have solved my problem ...Thanks also to Steven, Priscilla, Tangled up in Blue, Brad and Bernard; I will try your suggestions to. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=49031t=48947 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Voice of IP / Frame-Relay and remote labs [7:48947]
I am about to start studying Voice topics for the CCIE lab How does one test that a call has actually been placed succesffuly when doing remote-labs? Or maybe this is not possible and you actually have to buy the gears to see the stuff working ... I bet you would neeed some type of robot to pickup the phone (just kidding). Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48947t=48947 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Voice of IP / Frame-Relay and remote labs [7:48947]
That is good ... but does the fact that the modem ring and indication that I have a proper voice link? Could it be that if picked up the phones that I would not be able to hear anything from the other side? And could a simple debug demonstrate that I have a crystal clear voice connection on the other side with no echos, etc Seems to me that I would be missing quite a lot in doing a voice lab other the Internet. Are my assumptions correct? Or am I just paranoid ... Thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=48961t=48947 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ISDN Gurus HElp! [7:47353]
Please send us the output of show isdn status on that router. Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=47378t=47353 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Benchmark CCIE [7:47320]
Thanks for the landmark... With an extra more focus, today I was able to do a new case scenario: http://www.cisco.com/warp/public/793/access_dial/bri_isdn_11048.html in exactly 15 minutes. That was pretty stressfull! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=47379t=47320 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Benchmark CCIE [7:47320]
Thank you for the Tips Bernard. I will change my bad habits :) Just curious... When you configure your routers do you enter all the commands in global config mode, then interface mode, then router mode ? Or do you configure the routers according to the sequence in which the router operates (for example: Layer 1, Layer 2, Layer 3)? I have found that when I configure my routers the second way, I feel much more in control of what is going on (because the config is logical). The down side is that I take much more time because I am some how thinking about the process while I am doing it. On the other hand, when I configure from memory (i.e. all commands in global mode, then interface mode ...) there is no internal dialog but things are going much faster and I can keep within the timeline. I would like to know how the folks who took the CCIE and those who are close to taking it configure routers under time presure: memorization of configs or sequence in which the router operates Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=47384t=47320 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Benchmark CCIE [7:47320]
Understood ... THANKS Chuck!!! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=47395t=47320 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Benchmark CCIE [7:47320]
Don, I did not understand your post. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=47401t=47320 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ISDN DDR and Routing Protocols [7:47301]
I don't know which IGP protocols you run on your network (if any)... so this is just a wild guess. If you were running RIP it could trigger the link ... (I would add: access-list 101 deny udp any any eq 520) If you were running OSPF (I would add: access-list 101 deny ospf any any) Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=47321t=47301 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Lab comming Frakin' out here [7:47055]
I know the feelling ... You said: But what is really scaring me is the Old Stuff like Bridging, Token, IPX. Then why not postpon your lab and take the lab after November. Apparently they are removing ipx and token ring? Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=47086t=47055 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ISDN -- challenge! [7:46496]
From router B, I pinged a boggus destination. This triggered the bri interface on router B. Here is the output of the debug dialer events from Router A. You can see that router A (for no apparent reason) is trying to call router B (even though it is router B who initiated the call.) Of course the result of this is that the isdn timers will time out because the only channel available is busy with the call initiated by router B. Why would router A attempt to call the next hop? (172.16.1.2) Sending 5, 100-byte ICMP Echos to 1.2.3.6, timeout is 2 seconds: 00:17:27: BR0/0 DDR: Dialing cause ip (s=172.16.1.1, d=172.16.1.2) 00:17:27: BR0/0 DDR: Attempting to dial 5554000 00:17:27: BRI0/0: wait for isdn carrier timeout, call id=0x8006. 00:17:29: BR0/0 DDR: Dialing cause ip (s=172.16.1.1, d=172.16.1.2) 00:17:29: BR0/0 DDR: Attempting to dial 5554000 00:17:29: BRI0/0: wait for isdn carrier timeout, call id=0x8007. 00:17:31: BR0/0 DDR: Dialing cause ip (s=172.16.1.1, d=172.16.1.2) 00:17:31: BR0/0 DDR: Attempting to dial 5554000 00:17:31: BRI0/0: wait for isdn carrier timeout, call id=0x8008. 00:17:33: BR0/0 DDR: Dialing cause ip (s=172.16.1.1, d=172.16.1.2) 00:17:33: BR0/0 DDR: Attempting to dial 5554000 00:17:33: BRI0/0: wait for isdn carrier timeout, call id=0x8009. 00:17:35: BR0/0 DDR: Dialing cause ip (s=172.16.1.1, d=172.16.1.2) 00:17:35: BR0/0 DDR: Attempting to dial 5554000 00:17:35: BRI0/0: wait for isdn carrier timeout, call id=0x800A. Success rate is 0 percent (0/5) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46607t=46496 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ISDN -- challenge! [7:46496]
No I am not running any routing protocol! Here are my configs: isdn1 (router A) isdn1#show run Building configuration... Current configuration : 1166 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname isdn1 ! enable secret 5 $1$9PdI$e3RshbiT8O9CiQxW317VQ0 ! username isdn2 password 0 cisco username isdn3 password 0 cisco ip subnet-zero ! ! no ip domain-lookup ip host isdn2 2065 1.1.1.1 ! isdn switch-type basic-ni ! ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface Serial0/0 no ip address shutdown no fair-queue ! interface BRI0/0 ip address 172.16.1.1 255.255.255.0 encapsulation ppp dialer map ip 172.16.1.2 broadcast 5554000 dialer-group 1 isdn switch-type basic-ni isdn spid1 51055512340001 isdn spid2 51055512350001 ppp authentication chap ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Serial0/1 no ip address shutdown ! ip classless ip route 0.0.0.0 0.0.0.0 172.16.1.2 ip http server ip pim bidir-enable ! dialer-list 1 protocol ip permit ! line con 0 escape-character 19 line aux 0 no exec transport input all line vty 0 4 password san-fran login ! no scheduler allocate end isdn 2 (Router B) isdn2#show run Building configuration... Current configuration : 1115 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname isdn2 ! logging rate-limit console 1 enable secret 5 $1$8Z95$B21CJMn0N8R9EqeGB8olj1 ! username isdn1 password 0 cisco ip subnet-zero ! ! no ip domain-lookup ip host switch 2065 1.1.1.1 ! isdn switch-type basic-ni ! ! ! interface Loopback0 ip address 1.1.1.1 255.255.255.255 ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface BRI0/0 ip address 172.16.1.2 255.255.255.0 encapsulation ppp dialer map ip 172.16.1.1 broadcast 5551234 dialer-group 1 isdn switch-type basic-ni isdn spid1 5105554001 isdn spid2 51055540010001 ppp authentication chap ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! ip classless ip route 0.0.0.0 0.0.0.0 172.16.1.1 no ip http server ip pim bidir-enable ! access-list 1 permit any dialer-list 1 protocol ip list 1 ! line con 0 escape-character 18 line aux 0 no exec transport input all line vty 0 4 password san-fran login ! no scheduler allocate end Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46608t=46496 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ISDN -- challenge! [7:46496]
You have default routes pointed towards one another. You ping an address that doesn't exist on either router. The first sends it off to the second. The second doesn't know what to do with it so sends it on to its default which is the first. I do agree with your statements ... However, what is the need to open a second channel when there is one already opened? Shouldn't Router A use the already existing channel? Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46630t=46496 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ISDN -- challenge! [7:46496]
Gaz, you are going to have to educate me on cultural issues ... What is wrong with those numbers ? (ip host isdn2 2065 1.1.1.1) Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46631t=46496 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ISDN -- challenge! [7:46496]
Sorry Gaz, I did not mean to spoil to the suspense. I thought you meant the humbers 2065 1.1.1.1 were unlucky numbers. Something like :) That is why I asked you to explain if there was any cultural issues with my numbers ... Anyway,I am redoing the exercise right now with Fast Ethenernet Interfaces up and I am renumbering the loopbacks I will let you know. Thanks! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46649t=46496 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ISDN -- challenge! [7:46496]
Ok, here are the result of my tests (cummulative) 1) I gave the loopbacks unique IP addresses and tested result: no change 2) I assigned isdn1 f0/0 to vlan11 and isdn f0/0 to vlan12 on isdn1 f0/0 ip address was 192.168.10.1/24 on isdn2 f0/0 ip address was 192.168.20.1/24 I left the default route unchanged on both routers and tested result: no change 3) I remove the default route and created specific routes instead on isdn1: ip route 192.168.10.0 255.255.255.0 172.16.1.2 on isdn2: ip route 192.168.20.0 255.255.255.0 172.16.1.1 result: no change. When the first bri channel was up, I was able to ping nor the two fast ethernet interfaces nor the two bri interface. Strange!!! 4) I added the keyword name to each map statement (as suggested by Gaz) on isnd1:dialer map ip 172.16.1.2 name isdn2 broadcast 5554000 on isdn2:dialer map ip 172.16.1.1 name isdn1 broadcast 5551234 result: double success. RouterA (isdn1) did not try to initiate another connection AND I was able to ping the fast ethernet interfaces and the bri interfaces. See below: isdn2#ping 192.168.10.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.10.1, timeout is 2 seconds: 01:12:30: ISDN BR0/0: RX on B1 at 64 Kb/s 01:12:30: ISDN BR0/0: Event: Accepting the call id 0x10 01:12:131009057551: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up 01:12:30: ISDN BR0/0: TX - CALL_PROC pd = 8 callref = 0x94 01:12:30: Channel ID i = 0x89 01:12:30: ISDN BR0/0: TX - CONNECT pd = 8 callref = 0x94 01:12:30: Channel ID i = 0x89 01:12:30: ISDN BR0/0: RX - CONNECT_ACK pd = 8 callref = 0x14 03:55:06: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up. 01:12:32: BR0/0:1 DDR: dialer protocol up.!!! Success rate is 60 percent (3/5), round-trip min/avg/max = 32/32/32 ms isdn2# 01:12:33: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to up 03:55:09: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to up Now that the problem is solved (thanks Gaz, Daniel, Ahoang and Thomas), we need to understand the reasons for the behavior of router A . To summarize: 1) Without the name keyword, routerA attempts to initiate a connection on receiving a connection initiated by router B. 2) Once the channel setup from B is up, data traffic does not flow even with proper routes. My gut feeling is that name keyword is preventing data traffic to flow between the two routers , even when the channel is up! This would explain why routeA is attempting to open a new connection even though there is a channel already up. routerA must be thinking that it is not allowed to use the already existing channel to reply to router B ... but then it would mean that something must have leaked from A to B to prone routerA to initiate a connection ... but what if not ip data? I will do some more research on this and post my findingsremaksquestions in a next post. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46663t=46496 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 5-4-3 rule segment definition for 10BaseT [7:46439]
Well here is a start: the 5-4-3 rule reffers to 5 segments 4 repeaters 3 populated segments Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46667t=46439 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ISDN -- challenge! [7:46496]
Router A and Router B are connected to an Atlas 550 via BRI interfaces Router A ATLAS --- ROUTER B Both router are configured with DDR Dialer maps so that Router A can call router B or vice-versa (basic stuff). When Router A is called by Router B, Router A answers normally and the link goes up, but then (surprisingly), Router A attempts to initiate a connection to Router B . This connection fails because I only configured the phone number for one channel (Isdn error 17: User is busy). Is this calling of Router A a normal behavior? (I don't think so!) I fixed the problem by simpling removing the phone number from the map statement of Router A. I am posting here the debug before and after I removed the phone number on A. The debug where captured on Router A. I have spent the day on the apparently trivial question: why is Router A calling Router B when I have no call back of any sort. Still no light ... Want to step up to the challenge? :) Before: 00:32:45: ISDN BR0/0: RX on B1 at 64 Kb/s 00:32:45: ISDN BR0/0: Event: Accepting the call id 0xD 00:32:193273528320: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up 01:51:113824615516: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up 00:32:45: ISDN BR0/0: TX - CALL_PROC pd = 8 callref = 0x84 00:32:45: Channel ID i = 0x89 00:32:45: ISDN BR0/0: TX - CONNECT pd = 8 callref = 0x84 00:32:45: Channel ID i = 0x89 00:32:45: ISDN BR0/0: RX SETUP pd = 8 callref = 0x09 00:32:47: Bearer Capability i = 0x8890 00:32:47: Channel ID i = 0x83 00:32:47: Keypad Facility i = '555' 00:32:47: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x09 00:32:47: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0A 00:32:49: Bearer Capability i = 0x8890 00:32:49: Channel ID i = 0x83 00:32:49: Keypad Facility i = '555' 00:32:49: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0A 00:32:49: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0B 00:32:51: Bearer Capability i = 0x8890 00:32:51: Channel ID i = 0x83 00:32:51: Keypad Facility i = '555' 00:32:51: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to isdn3 00:32:51: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0B 00:32:51: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0C 00:32:53: Bearer Capability i = 0x8890 00:32:53: Channel ID i = 0x83 00:32:53: Keypad Facility i = '555' 00:32:53: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0C 00:32:53: ISDN BR0/0: RX on B1 at 64 Kb/s 00:41:53: ISDN BR0/0: Event: Accepting the call id 0x10 00:41:227633266688: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up 02:00:14602128: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 5551234 00:41:53: ISDN BR0/0: TX - CALL_PROC pd = 8 callref = 0x85 00:41:53: Channel ID i = 0x89 00:41:53: ISDN BR0/0: TX - CONNECT pd = 8 callref = 0x85 00:41:53: Channel ID i = 0x89 00:41:53: ISDN BR0/0: RX - CONNECT_ACK pd = 8 callref = 0x05.. 02:00:37: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed state to up 00:41:56: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to up. 02:00:40: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 5551234 isdn1 00:41:59: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to isdn3.. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46496t=46496 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ISDN ....Challenging Problem! [7:46500]
Posted to Cisco Newsgroup at 3:30 on June 13, 2002 Router A and Router B are connected to an Atlas 550 via BRI interfaces Router A ATLAS --- ROUTER B Both router are configured with DDR Dialer maps so that Router A can call router B or vice-versa (basic stuff). When Router A is called by Router B, Router A answers normally and the link goes up, but then (surprisingly), Router A attempts to initiate a connection to Router B . This connection fails because I only configured the phone number for one channel (Isdn error 17: User is busy). Is this calling of Router A a normal behavior? (I don't think so!) I fixed the problem by simpling removing the phone number from the map statement of Router A. I am posting here the debug before and after I removed the phone number on A. The debug where captured on Router A. I have spent the day on the apparently trivial question: why is Router A calling Router B when I have no call back of any sort. Still no light ... Want to step up to the challenge? :) Before: 00:32:45: ISDN BR0/0: RX on B1 at 64 Kb/s 00:32:45: ISDN BR0/0: Event: Accepting the call id 0xD 00:32:193273528320: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up 01:51:113824615516: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up 00:32:45: ISDN BR0/0: TX - CALL_PROC pd = 8 callref = 0x84 00:32:45: Channel ID i = 0x89 00:32:45: ISDN BR0/0: TX - CONNECT pd = 8 callref = 0x84 00:32:45: Channel ID i = 0x89 00:32:45: ISDN BR0/0: RX SETUP pd = 8 callref = 0x09 00:32:47: Bearer Capability i = 0x8890 00:32:47: Channel ID i = 0x83 00:32:47: Keypad Facility i = '555' 00:32:47: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x09 00:32:47: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0A 00:32:49: Bearer Capability i = 0x8890 00:32:49: Channel ID i = 0x83 00:32:49: Keypad Facility i = '555' 00:32:49: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0A 00:32:49: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0B 00:32:51: Bearer Capability i = 0x8890 00:32:51: Channel ID i = 0x83 00:32:51: Keypad Facility i = '555' 00:32:51: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to isdn3 00:32:51: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0B 00:32:51: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0C 00:32:53: Bearer Capability i = 0x8890 00:32:53: Channel ID i = 0x83 00:32:53: Keypad Facility i = '555' 00:32:53: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0C 00:32:53: ISDN BR0/0: RX on B1 at 64 Kb/s 00:41:53: ISDN BR0/0: Event: Accepting the call id 0x10 00:41:227633266688: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up 02:00:14602128: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 5551234 00:41:53: ISDN BR0/0: TX - CALL_PROC pd = 8 callref = 0x85 00:41:53: Channel ID i = 0x89 00:41:53: ISDN BR0/0: TX - CONNECT pd = 8 callref = 0x85 00:41:53: Channel ID i = 0x89 00:41:53: ISDN BR0/0: RX - CONNECT_ACK pd = 8 callref = 0x05.. 02:00:37: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed state to up 00:41:56: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to up. 02:00:40: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 5551234 isdn1 00:41:59: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to isdn3.. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46500t=46500 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: SNMP Management Using a Switch [7:46196]
Switches can do Layer 3 switching (hardware base routing) if they have a router module or a router switch feature card. Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Monday, June 10, 2002 8:16 AM To: [EMAIL PROTECTED] Subject: SNMP Management Using a Switch [7:46196] I have a question regarding switches. Can I connect multiple hosts together on a single switch? I though switches can only perform layer 2 switching and not layer 3 routing. Am I right? Scott Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46292t=46196 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Frame-Relay - [7:46076]
Steven, thanks for the answer. I am still have questions ... Where do I find original documents on Frame-Relay? Thanks Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46172t=46076 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE RS vs CCIE Design [7:46173]
A question to the current CCIE RS and CCIE Design engineers. How much design do I need to learn for the CCIE RS? Obviously not as much as the CCIE Design. But where do I draw the line? How much is too much, taking in consideration that I am planning to sit for the lab 9 to 12 months from now. Thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46173t=46173 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Frame-Relay - [7:46076]
Sorry for posting this again Please check my logic on this frame-relay traffic shaping scenario: My Bc is 8,000 bits My Be is 16,000 bits My CIR is 64 Kbps If I send 1 burst of 56,000 bits then 4 bursts of 4,000 bits, after the 4th burst of 4,000 bits I will be able to burst again but not before that. Correct? Here is my rational (Assume no congestion in the frame-relay network): During the first Tc interval, I send Bc+Be. During the second, third and fourth interval I can no longer burst because I have used all my burst credit. At the end of the 4th Tc interval I have taken care of my first burst. During the next four bursts, I am paying back so to speak on my credit line because I am sending less than the CIR. So on the 9th Tc interval I can burst again. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46076t=46076 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Frame Relay Traffic Shaping - [7:45962]
Please check my logic: My Bc is 8,000 bits My Be is 16,000 bits My CIR is 64 Kbps If I send 1 burst of 56,000 bits then 4 bursts of 4,000 bits, after the 4th burst of 4,000 bits I will be able to burst again but not before that. Correct? Here is my rational (Assume no congestion in the frame-relay network): During the first Tc interval, I send Bc+Be. During the second, third and fourth interval I can no longer burst because I have used all my burst credit. At the end of the 4th Tc interval I have taken care of my first burst. During the next four bursts, I am paying back so to speak on my credit line because I am sending less than the CIR. So on the 9th Tc interval I can burst again. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45962t=45962 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: To much! [7:45865]
Try exercising... It does increase mental stamina. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45965t=45865 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE Written passed - Boson [7:45535]
I took the CCIE written yesterday afternoon and passed (80%) I was expecting more, but I flunked the performance/QoS section of the exam, which I neglected somewhat during preparation. I used both Boson #1 and Boson #3. Those 2 tests are complementary and are NOT substitute for each other. Boson #3 focuses on SNA issues where as Boson #1 focuses on the other networking topics. If you can, you should purchase both tests. For preparation I did a pre-test on Boson #3 and discovered how little SNA and ATM I knew. For 3 weeks, I studied SNA and ATM using CCO + hands-on until the whole thing felt natural. Then, on the 4th week of preparation I repeated the same strategy with Boson #1. I dicovered 3 areas of networking where I had some weaknesses. I only had time to work on 2 of them thoroughly before the test. Thank you to Bernard and Dennis for excellent test materials and to all those who gracefully took the time to answer my questions. I particularly want to thank Priscilla and Leigh Anne who both put me back on track several times during the last two years and Daniel Cotts for squeezing some time out of his busy schedule to spend some time discussing Cisco with me. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45535t=45535 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE Written passed - Boson [7:45535]
The IOS documentation has a section on QoS. Check CC0 Regarless of your method of preparation you need to take some test to check your understanding. Boson was a great help in that matter. Good luck on your exam. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45578t=45535 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
TCP IP Sequence numbers [7:45131]
I understand that when a host is sending an acknowledgement, it indicates to the target the NEXT segment number that it expects to receive. When host A sends acknowledgement number X to host B, why does B sets its sequence number to X+1? I would expect B to set its sequence number to X, since X is already the next segment number ... thanks Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45131t=45131 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Check My EIGRP Configuration [7:45065]
Best of luck to you! Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Monday, May 27, 2002 2:44 AM To: [EMAIL PROTECTED] Subject: RE: Check My EIGRP Configuration [7:45065] Dear Kris, Karago, Pierre-Alex, Chuck, Steven, Brian and everybody thanks for helping me, I appreciate all your points. The conclusion I got it is to leave EIGRP if I have no redundant link and go for Static routes therefore I will save more bandwidth and not to be devil anymore. To be honest I was thinking to configure the routers with static routes from the beginning but I just gave myself a chance to try the EIGRP, its really cool protocol and save much of the bandwidth if we compare it with RIP or IGRP. About my idea of choosing different subnets even with point to point HDLC is because in the beginning I tried to configure the three fast Ethernet interfaces with the same subnet 129.19.10.xx but the link does not work with me, I tried to ping the sites but with no result so I decided to give them different subnets, when I did that every thing works fine, I did not try to give same subnet between each two HDLC interfaces, the time was so critical as my customer wants the network to be active by any mean . About the advice of Karago to Correct the Subnet Mask with /30, basically I did not see a need of doing this as I am not service provider to conserve as much as I can of what I have of IP addresses its private link and no ISP is involved, that's why I did not confine myself with 4 bits at the end. Anyhow its valuable advice and I will consider it in the future. Bandwidth statement is really something I missed and I will configure it as soon as I reach to the router terminal. Ismail Al-shelh -Original Message- From: Chuck [mailto:[EMAIL PROTECTED]] Sent: Sunday, May 26, 2002 6:06 PM To: [EMAIL PROTECTED] Subject: Re: Check My EIGRP Configuration [7:45065] considering his WAN links are point to point HDLC, I don't see how he even got the IP's to take. Can't configure two different physical interfaces into the same subnet. Technical exception - unnumbered. Steven A. Ridder wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... The only problem I see is that both of your wan links are in 1 giant network. I'd change that. -- RFC 1149 Compliant. Ismail Al-Shelh wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi all Yesterday I configured three sites connected through leased line 64 Kbps , the first router A located in the head quarter, the second one B located in the first branche and the third router C located in the second Branch. Simple Diagram Router(A) ---Router(B) | | | Router(C) I configured the routers with EIGRP protocol , what I want from you is to check if I am missing something in the configuration , I am looking for stable communication between the sites with no errors. Tanks allot Ismail Al-shelh - Router(A) show running-config -- Building configuration... Current configuration: ! version 12.1 service timestamps debug uptime service timestamps log uptime service password-encryption ! hostname Router(A) ! enable password 7 ! ! ! ! ! memory-size iomem 25 ip subnet-zero no ip domain-lookup ! ! ! ! interface Serial0 ip address 192.168.0.1 255.255.255.0 no ip route-cache ! interface Serial1 ip address 192.168.0.2 255.255.255.0 no ip route-cache ! interface FastEthernet0 description connected to Cisco1538 ip address 129.19.10.172 255.255.255.0 speed auto ! router eigrp 100 network 129.19.0.0 network 192.168.0.0 no auto-summary no eigrp log-neighbor-changes ! ip classless no ip http server ! snmp-server engineID local 00090202B9A5BFC7 snmp-server community RO ! line con 0 exec-timeout 0 0 password 7 login transport input none line aux 0 line vty 0 4 password 7 login ! end --Router(B) show running-config -- Building configuration... Current configuration : 677 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname SITRA ! enable password ! memory-size iomem 25 ip subnet-zero ! ! ! ! interface FastEthernet0/0 ip address 129.19.12.173 255.255.255.0 speed auto ! interface Serial1/0 ip address 192.168.0.10 255.255.255.0 no ip route-cache ! router eigrp 100 network 129.19.0.0 network 192.168.0.0 no auto-summary no eigrp log-neighbor-changes ! ip classless no ip http server ! tftp-server nvram:startup-config ! line con 0 line aux 0 line vty 0 4 password login ! no scheduler allocate end -- Router(C)show running-config --
RE: TCP IP Sequence numbers [7:45131]
Priscilla, I read section 3.3 of RFC 793. Everything is clear... Thanks for stressing out those important points of semantic. Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Priscilla Oppenheimer Sent: Monday, May 27, 2002 1:59 PM To: [EMAIL PROTECTED] Subject: Re: TCP IP Sequence numbers [7:45131] At 07:37 AM 5/27/02, Pierre-Alex Guanel wrote: I understand that when a host is sending an acknowledgement, it indicates to the target the NEXT segment number that it expects to receive. It's kind of a picky thing, but it's not accurate to say that the ACK indicates the number of the next segment the host expects to receive. TCP sequences bytes, not segments. The ACK number indicates the next byte the hosts expects to receive. Of course, every segment has many bytes in it. The Window field specifies how many bytes the host is ready to receive. When host A sends acknowledgement number X to host B, why does B sets its sequence number to X+1? It doesn't. It sets the sequence number to the ACK number. Where are you getting this info? It's not right. The first thing I check when reading a description of TCP is whether they know that bytes (not segments) are numbered. If they don't, I don't read the rest. Also, be careful if they don't go beyond explaining the 3-way handshake. Since the SYN, SYN ACK, and ACK packets don't actually have any data bytes in them, the sequence number behaves a little differently. They only go up by one, making it appear that segments are sequenced, rather than bytes. client sends: SYN initial seq number = 50 server sends: SYN initial seq number = 99, ACK = 51 client sends: ACK 100 client sends: bytes 51-100 server sends: ACK 101 client sends: bytes 101-150 ETC. Actual size of packets depends on Max Segment Size (and how much data the upper layer has to send). Actual number of packets sent before stopping and waiting for ACK depends on the window size. Check RFC 793, Stevens, Comer, many books other than pass the Cisco test quick books. ;-) Priscilla I would expect B to set its sequence number to X, since X is already the next segment number ... thanks Pierre-Alex Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45177t=45131 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Check My EIGRP Configuration [7:45065]
Looks good ... I would also add a bandwidth statement on the serial interfaces to specify 64 Kbps This way the metric calculated by EIGRP will match your actual network bandwidth This would make a difference if your network became more complex ... Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Sunday, May 26, 2002 3:04 AM To: [EMAIL PROTECTED] Subject: Check My EIGRP Configuration [7:45065] Hi all Yesterday I configured three sites connected through leased line 64 Kbps , the first router A located in the head quarter, the second one B located in the first branche and the third router C located in the second Branch. Simple Diagram Router(A) ---Router(B) | | | Router(C) I configured the routers with EIGRP protocol , what I want from you is to check if I am missing something in the configuration , I am looking for stable communication between the sites with no errors. Tanks allot Ismail Al-shelh - Router(A) show running-config -- Building configuration... Current configuration: ! version 12.1 service timestamps debug uptime service timestamps log uptime service password-encryption ! hostname Router(A) ! enable password 7 ! ! ! ! ! memory-size iomem 25 ip subnet-zero no ip domain-lookup ! ! ! ! interface Serial0 ip address 192.168.0.1 255.255.255.0 no ip route-cache ! interface Serial1 ip address 192.168.0.2 255.255.255.0 no ip route-cache ! interface FastEthernet0 description connected to Cisco1538 ip address 129.19.10.172 255.255.255.0 speed auto ! router eigrp 100 network 129.19.0.0 network 192.168.0.0 no auto-summary no eigrp log-neighbor-changes ! ip classless no ip http server ! snmp-server engineID local 00090202B9A5BFC7 snmp-server community RO ! line con 0 exec-timeout 0 0 password 7 login transport input none line aux 0 line vty 0 4 password 7 login ! end --Router(B) show running-config -- Building configuration... Current configuration : 677 bytes ! version 12.2 service timestamps debug uptime service timestamps log uptime no service password-encryption ! hostname SITRA ! enable password ! memory-size iomem 25 ip subnet-zero ! ! ! ! interface FastEthernet0/0 ip address 129.19.12.173 255.255.255.0 speed auto ! interface Serial1/0 ip address 192.168.0.10 255.255.255.0 no ip route-cache ! router eigrp 100 network 129.19.0.0 network 192.168.0.0 no auto-summary no eigrp log-neighbor-changes ! ip classless no ip http server ! tftp-server nvram:startup-config ! line con 0 line aux 0 line vty 0 4 password login ! no scheduler allocate end -- Router(C)show running-config -- Building configuration... Current configuration: ! version 12.1 service timestamps debug uptime service timestamps log uptime service password-encryption ! hostname Router(C) ! enable password 7 ! ! ! ! ! memory-size iomem 25 ip subnet-zero no ip domain-lookup ! ! ! ! interface Serial0 ip address 192.168.0.3 255.255.255.0 no ip route-cache ! interface FastEthernet0 description connected to Cisco1538 ip address 129.19.11.174 255.255.255.0 speed auto ! router eigrp 100 network 129.19.0.0 network 192.168.0.0 no auto-summary no eigrp log-neighbor-changes ! ip classless no ip http server ! snmp-server engineID local 00090202B9A5BFC7 snmp-server community RO ! line con 0 exec-timeout 0 0 password 7 login transport input none line aux 0 line vty 0 4 password 7 login ! end Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45085t=45065 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ISDN-PRI-BRI [7:45083]
You need the ISDN switch or switch simulator Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Juan Blanco Sent: Sunday, May 26, 2002 10:13 AM To: [EMAIL PROTECTED] Subject: ISDN-PRI-BRI [7:45083] Team, We have a 7200 with the following interface 4 Channelized T1/PRI port(s) We have two 2600 with a 1-Port ISDN with NT-1 Wan Interface Question, There is any cable which will allows us to connect the 2600 routers directly to the 7200 and simulate a ISDN network without the need to have to buy a ISDN simulator. We are trying to use everything we have before spending more money for our lab. Thanks, J Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45086t=45083 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ISDN-PRI-BRI [7:45083]
This is is really cool! I was not aware of this. Thanks, Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Steven A. Ridder Sent: Sunday, May 26, 2002 12:11 PM To: [EMAIL PROTECTED] Subject: Re: ISDN-PRI-BRI [7:45083] Here's the links I have seen from in this group. Maybe it is only for PRI, but some do talk about BRI's. pad pad pad http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121 t/121t3/dt_q931.htm http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121 t/121t2/dt_qsig.htm http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121newft/121 limit/121x/121xi/121xi_3/dt_brint.htm -- RFC 1149 Compliant. Frank Merrill wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Juan Blanco wrote: Team, We have a 7200 with the following interface 4 Channelized T1/PRI port(s) We have two 2600 with a 1-Port ISDN with NT-1 Wan Interface Question, There is any cable which will allows us to connect the 2600 routers directly to the 7200 and simulate a ISDN network without the need to have to buy a ISDN simulator. We are trying to use everything we have before spending more money for our lab. Thanks, Actually. unless you get some value from connecting the 2 2600's together on thier BRI interfaces, buying a simple (2 BRI) ISDN simulator probably won't do anything for you either as you won't be able to attach the PRI on the 7200 to it. You'd have to buy something like an Arca Technologies Emutel DUO which has 3 BRIs and 2 PRIs. Hopefully someone else has some better ideas on this as I'd like to hear them also! Good Luck! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=45096t=45083 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE written Commands [7:44730]
Just curious Do I need to review all my routing and switching commands for the CCIE written? Boson #3 have no emphasis on commands but Boson #1 does. Thank you, Pierre-Alex P.S. I assume this question does not violate the NDA . Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=44730t=44730 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
bit time [7:44142]
I am looking for a good definition of bit time I found on a networking encyclopedia that bit time is the same as bit rate i.e. the ratio of the number of bits transferred between devices in a specific amount of time, typically a second. I am not satisfied by this definition. For example in the sentence The active monitor holds the token for 24-bit time how long is 24 bit times? (I am sure not one second!) Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=44142t=44142 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
bit time [7:44144]
I am looking for a good definition of bit time I found on a networking encyclopedia that bit time is the same as bit rate i.e. the ratio of the number of bits transferred between devices in a specific amount of time, typically a second. I am not satisfied by this definition. For example in the sentence The active monitor holds the token for 24-bit time how long is 24 bit times? (I am sure not one second!) Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=44144t=44144 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: bit time [7:44144]
Thank you Remmert. Can I assume that with a 16 Mb Token ring a bit time would be 16 bits per seconds? Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of C restion Sent: Tuesday, May 14, 2002 6:32 AM To: [EMAIL PROTECTED] Subject: RE: bit time [7:44144] Hi Pierre, A bit-time is the time it takes to send a bit. For 10Mb Ethernet a bit-time is a 100 nanoseconds (10 Megabit per second, so 1 bit per 100 nanoseconds), for Fast Ethernet it is 10 nanoseconds and so on. So if a workstation on a Fast Ethernet network were to wait 5 bit-times, it actually waits 50 nanoseconds. Hth, Remmert Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=44228t=44144 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: All-In-One CCIE Study Guide - Second Edition [7:42292]
Congratulations! Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Koen Zeilstra Sent: Wednesday, April 24, 2002 3:49 PM To: [EMAIL PROTECTED] Subject: RE: All-In-One CCIE Study Guide - Second Edition [7:42292] Pierre, Sorry for the confusion. Passed the written. Hurrah!! Very few BGP questions. Lot of TokenRing. You better learn the Rossi Paper! Good luck on yours. regards, Koen On Tue, 23 Apr 2002, Pierre-Alex GUANEL wrote: | Koen, I was referring to the book written by Roosvelt GILES. | | By the way, how was the written? I am planning to take it 1 of June. | | Pierre-Alex | | -Original Message- | From: Koen Zeilstra [mailto:[EMAIL PROTECTED]]On Behalf Of Koen Zeilstra | Sent: Tuesday, April 23, 2002 3:08 PM | To: Pierre-Alex GUANEL | Cc: [EMAIL PROTECTED] | Subject: RE: All-In-One CCIE Study Guide - Second Edition [7:42292] | | | Are we talking about the same book? | I am referring to this one. (watch for wrap) | | http://www.amazon.com/exec/obidos/ASIN/0072127600/qid=1019592419/sr=8-3/ref= | sr_8_7_3/104-8586207-1795929 | | Not sure though if that's the one you mean. | | On Tue, 23 Apr 2002, Pierre-Alex GUANEL wrote: | | | Good luck to you, .. one more question. Are the mistakes in the second | | edition of Giles in the multiple choice questions or in the text itself? | | | | Pierre-Alex | | | | | | | | -Original Message- | | From: Koen Zeilstra [mailto:[EMAIL PROTECTED]]On Behalf Of Koen Zeilstra | | Sent: Tuesday, April 23, 2002 3:10 AM | | To: Pierre-Alex GUANEL | | Cc: [EMAIL PROTECTED] | | Subject: Re: All-In-One CCIE Study Guide - Second Edition [7:42292] | | | | | | Pierre, | | | | I am reading the second edition at the moment. Will go for the written | | tomorrow. Until so far I like the book very much, although it still | | contains errors. | | | | K. | | | | Koen Zeilstra | | Legian | | --- | | Trying to define yourself is like trying to bite your own teeth. | | -- Alan Watts | | | | On Mon, 22 Apr 2002, Pierre-Alex GUANEL wrote: | | | | | Is the second edition of Giles' book a reliable study source. | | | | | | I read that the first edition was crippled with mistakes and I would | like | | to | | | know if all of them got fixed in the Second Edition. | | | | | | | | | Thank you! | | | | | | Pierre-Alex | | | | | | | | | | | | | | | | | | | | | | | | | | | Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=42468t=42292 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: All-In-One CCIE Study Guide - Second Edition [7:42292]
Good luck to you, .. one more question. Are the mistakes in the second edition of Giles in the multiple choice questions or in the text itself? Pierre-Alex -Original Message- From: Koen Zeilstra [mailto:[EMAIL PROTECTED]]On Behalf Of Koen Zeilstra Sent: Tuesday, April 23, 2002 3:10 AM To: Pierre-Alex GUANEL Cc: [EMAIL PROTECTED] Subject: Re: All-In-One CCIE Study Guide - Second Edition [7:42292] Pierre, I am reading the second edition at the moment. Will go for the written tomorrow. Until so far I like the book very much, although it still contains errors. K. Koen Zeilstra Legian --- Trying to define yourself is like trying to bite your own teeth. -- Alan Watts On Mon, 22 Apr 2002, Pierre-Alex GUANEL wrote: | Is the second edition of Giles' book a reliable study source. | | I read that the first edition was crippled with mistakes and I would like to | know if all of them got fixed in the Second Edition. | | | Thank you! | | Pierre-Alex | | | | | Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=42303t=42292 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
All-In-One CCIE Study Guide - Second Edition [7:42292]
If the second edition of Giles' book a reliable study source. I read that the first edition was crippled with mistakes and I would like to know if all of them got fixed in the Second Edition. Thank you! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=42292t=42292 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
TAC [7:42141]
You have worked with TAC on a case. The problem is resolved. Who will close the case? The TAC engineer or the customer Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=42141t=42141 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: TAC [7:42141]
I've had TAC close cases that were not even close to being resolved. I assume that there's some type of reward structure for closing cases quickly. It seems to me that the clients should close the case because they are the only one who can tell whether the problem has been resolved to their satisfaction ... I don't have access to the TAC Case Tool kit because I have no contract agreement with Cisco. Is there a button somewhere on the electronic form that says Close? Thank you, Pierre-Alex -Original Message- From: Craig Columbus [mailto:[EMAIL PROTECTED]] Sent: Sunday, April 21, 2002 10:08 AM To: Pierre-Alex Guanel Cc: [EMAIL PROTECTED] Subject: Re: TAC [7:42141] In my experience, either side can close the case. I've had TAC close cases that were not even close to being resolved. I assume that there's some type of reward structure for closing cases quickly. On another topic, has anyone had the experience that TAC is perhaps slipping a bit when it comes to the quality of the first line engineers? I don't remember having any problems with TAC until about the time Cisco's stock price started seriously dropping. Since that time, I've had several occurrences where I've had extremely rude and/or incompetent people initially handle my TAC cases. In each instance, I've had to get rude back and insist that they drop the case and transfer me to their supervisor. Once transferred, I got the superior TAC support that I'm used to. I spoke with a colleague about this, and he told me that he's had exactly the same experience. What's been your experience? Has this happened with increasing frequency to any of you? Craig At 10:28 AM 4/21/2002 -0400, you wrote: You have worked with TAC on a case. The problem is resolved. Who will close the case? The TAC engineer or the customer Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=42148t=42141 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: TAC [7:42141]
I called TAC this morning. I had no problem getting through. If you are in the US, the number is: 1 800 553 2447 Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Steven A. Ridder Sent: Sunday, April 21, 2002 10:25 AM To: [EMAIL PROTECTED] Subject: Re: TAC [7:42141] Has anyone ever had TAC work on a weekend? How can I get an engineer on a weekend if I ever needed one? -- RFC 1149 Compliant. Get in my head: http://sar.dynu.com Craig Columbus wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... In my experience, either side can close the case. I've had TAC close cases that were not even close to being resolved. I assume that there's some type of reward structure for closing cases quickly. On another topic, has anyone had the experience that TAC is perhaps slipping a bit when it comes to the quality of the first line engineers? I don't remember having any problems with TAC until about the time Cisco's stock price started seriously dropping. Since that time, I've had several occurrences where I've had extremely rude and/or incompetent people initially handle my TAC cases. In each instance, I've had to get rude back and insist that they drop the case and transfer me to their supervisor. Once transferred, I got the superior TAC support that I'm used to. I spoke with a colleague about this, and he told me that he's had exactly the same experience. What's been your experience? Has this happened with increasing frequency to any of you? Craig At 10:28 AM 4/21/2002 -0400, you wrote: You have worked with TAC on a case. The problem is resolved. Who will close the case? The TAC engineer or the customer Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=42152t=42141 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Token Ring Errors - Simulating [7:41497]
Very useful. Thanks! Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of adam lee Sent: Thursday, April 18, 2002 11:05 PM To: [EMAIL PROTECTED] Subject: RE: Token Ring Errors - Simulating [7:41497] Buy some tr nics and put them on a pc, and a cheap tr hub. I am pretty sure you can pick up a cabletron with a console cable pretty cheap on ebay. Short a cable and have it connected and it will probably send a beacon through the network. Mismatch the speeds and see what happens. Maybe, hard code the same LAA to two nic and see if you can generate frame copy errors by using a third pc. Maybe, you can send tons of packets to the hub and generate congestion errors. Taking a pc off the ring should cause burst and maybe token errors. If you had some TR routers around you could connect to the hubs as well. The show controllers tokenring xx command will display tr errors as well. Not sure if you can have duplicate tokens because there is only one full token allowed on the ring at the same time even with early token release enabled. You'll probably need a protocol analyzer to capture the frames. You will be able to see the active monitor and the standby monitor packets and you'll be able to see the election process too. And you'll be able to see how the bit is flipped in a tr frame. Not sure what software though for TR. Sniffer would work and if you have an OS2 workstation, Navtel would work. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Pierre-Alex Guanel Sent: Monday, April 15, 2002 8:54 AM To: [EMAIL PROTECTED] Subject: Token Ring Errors - Simulating [7:41497] Do you know tool(s) that can generate Bad Token ring frames, duplicate tokens, etc... ? I would like to check my Token Ring troubleshooting skills. thank you! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=41942t=41497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
output buffers swapped out [7:41985]
(resent) Can't find any explanation on CCO about output buffers swapped out (Ethernet interface) Any one has a definition of what it is and what could cause 146399903 output buffers swapped out on an Ethernet interface? thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=41985t=41985 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: output buffers swapped out [7:41986]
Answer to my own question: on 7500 routers when the transmit-buffers backing-store command is enabled and the transmit queue is full, packets are swapped from the MEMD into DRAM. If the command is not enabled (default) then packets are dropped. A high occurrence of output buffers swapped out simply indicates a lot of traffic. No problem there! Pierre-Alex --- (resent) Can't find any explanation on CCO about output buffers swapped out (Ethernet interface) Any one has a definition of what it is and what could cause 146399903 output buffers swapped out on an Ethernet interface? thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=41986t=41986 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: US Robotics modem to Cisco 2514 [7:41894]
If you remove the modem autoconfigure ... as Mark suggested, then you will need a modem chat script. modem autoconfigure ... will work fine on an US Robotics Sposter with pin 3 and 8 down You should reverse telnet to the modem and type atF and enter. Then you type ati4 and enter (even if you don't see what you type) Send us a copy of what your session and your running config Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mark Odette II Sent: Thursday, April 18, 2002 7:16 PM To: [EMAIL PROTECTED] Subject: RE: US Robotics modem to Cisco 2514 [7:41894] Get rid of the Modem Autoconfigure line, and see what happens. Mark -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mayo, Simer Sent: Thursday, April 18, 2002 6:22 PM To: [EMAIL PROTECTED] Subject: US Robotics modem to Cisco 2514 [7:41894] I'm trying to connect a US Robotics sportster modem to a Cisco 2514 thru the aux port. The dip switches on the modem: one, three and eight are down and all others are up. Config: line aux 0 login password password modem inout modem autoconfigure type usr_sportster transport input all flowcontrol hardware stopbits 1 speed 38400 When i reverse telnet into the modem it prompts for the password and OK but after that i cant type anything. The only way out is cancel the session (Ctrl+Shft+6..x) and then disconnect. I have tried using the modem autoconfigure discovery but it couldn't find the modem...i checked this debuging confmodem On sh line 1: Modem state: Ready Modem hardware state: noCTS noDSR DTR RTS: Any help will be appreciated. Thanks Simer Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=41903t=41894 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Token Ring Errors - Simulating [7:41497]
Do you know tool(s) that can generate Bad Token ring frames, duplicate tokens, etc... ? I would like to check my Token Ring troubleshooting skills. thank you! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=41497t=41497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Cisco Market Place [7:41336]
Do you have to be a Cisco reseller to order directly from Cisco Market Place? In the Networking Products Market Place homepage, when I use the Internet Commerce Agreement Link (ICA), it asks me to select a region; then get the message: Your Cisco.com user profile does not contain the necessary Internet Commerce information to sign the Internet Commerce Agreement for your company. Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=41336t=41336 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
TACACS+ [7:41095]
I am using Cisco Secure ACS v2.6 I can't find the location in the software where I can set the commands users can use (Authorization). Can you give me a hint? thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=41095t=41095 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: TACACS+ [7:41103]
I have read the documentation for ACS v2.6 I went to IOS commands (under group) in the IOS Commands sections I am getting error message whenever I enter something in the command and argument window. (for example: configure terminal gives me the error exec terminal:incorrect format Any idea? Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=41103t=41103 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE written / Lab ... partner [7:40781]
Anyone in Warsaw (Poland), preparing for the CCIE written / Lab? Please contact me of line. Thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=40781t=40781 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Best place to prepare for CCIE? [7:40362]
I lost my job in the US and I have to relocate. Which country would you go to? thanks Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=40362t=40362 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Logging - terminal monitor not working [7:39957]
Cool! I will spend sometime today learning how to use the bug tool... Thanks, Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Sunday, March 31, 2002 12:00 PM To: [EMAIL PROTECTED] Subject: RE: Logging - terminal monitor not working [7:39957] Have seen it on many (mostly smaller) routers. Its a bug: ## Bug Id : CSCdu60369 ## Headline no syslog logging when logging synchronous enabled ## Product c2600 Model ## Component os-logging Duplicate of ## Severity 2 Status M ## Version Found12.0(7)T 12.0(6)S Fixed-in Version12.2(5) ## Release Notes ## ## The logging synchronous line configuration command may ## cause logging to stop. ## ## Workaround: Remove this command. hth Reinhold Pierre-Alex Guanel wrote: Amazing I removed logging synchronous on line console 0 and debug worked I am curious, what is the reason for logging synchronous preventing debug outputs on terminal lines? Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Lidiya White Sent: Saturday, March 30, 2002 5:46 PM To: [EMAIL PROTECTED] Subject: RE: Logging - terminal monitor not working [7:39957] I would add no ip route-cache on that interface and make sure that you don't have logging synchronous under line con 0... -- Lidiya White -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Pierre-Alex Guanel Sent: Saturday, March 30, 2002 3:04 PM To: [EMAIL PROTECTED] Subject: Logging - terminal monitor not working [7:39957] Kind of a silly problem but can't figure it out ... I am connected to R1 via telnet. I have turned on debugging of ip packets I also have issued the command terminal monitor Yet I do not get anything logged when I ping the Ethernet interface of R1 Any ideas? Thanks R1#sh terminal Line 2, Location: , Type: ANSI Length: 45 lines, Width: 80 columns Baud rate (TX/RX) is 9600/9600 Status: Ready, Active, No Exit Banner Capabilities: Receives Logging Output Modem state: Ready Group codes:0 Special Chars: Escape Hold Stop Start Disconnect Activation ^^xnone - - none Timeouts: Idle EXECIdle Session Modem Answer Session Dispatch never never none not set Idle Session Disconnect Warning never Login-sequence User Response 00:00:30 Autoselect Initial Wait not set Modem type is unknown. Session limit is not set. Time since activation: 00:41:15 Editing is enabled. History is enabled, history size is 10. DNS resolution in show commands is enabled Full user help is disabled Allowed transports are lat pad v120 mop telnet rlogin nasi. Preferred is lat. No output characters are padded No special data dispatching characters R1#sh logging Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns) Console logging: level debugging, 102 messages logged Monitor logging: level debugging, 2 messages logged Logging to: vty2(0) Buffer logging: level debugging, 102 messages logged Trap logging: level informational, 47 message lines logged Log Buffer (4096 bytes): Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=39991t=39957 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Logging - terminal monitor not working [7:39957]
Kind of a silly problem but can't figure it out ... I am connected to R1 via telnet. I have turned on debugging of ip packets I also have issued the command terminal monitor Yet I do not get anything logged when I ping the Ethernet interface of R1 Any ideas? Thanks R1#sh terminal Line 2, Location: , Type: ANSI Length: 45 lines, Width: 80 columns Baud rate (TX/RX) is 9600/9600 Status: Ready, Active, No Exit Banner Capabilities: Receives Logging Output Modem state: Ready Group codes:0 Special Chars: Escape Hold Stop Start Disconnect Activation ^^xnone - - none Timeouts: Idle EXECIdle Session Modem Answer Session Dispatch never nevernone not set Idle Session Disconnect Warning never Login-sequence User Response 00:00:30 Autoselect Initial Wait not set Modem type is unknown. Session limit is not set. Time since activation: 00:41:15 Editing is enabled. History is enabled, history size is 10. DNS resolution in show commands is enabled Full user help is disabled Allowed transports are lat pad v120 mop telnet rlogin nasi. Preferred is lat. No output characters are padded No special data dispatching characters R1#sh logging Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns) Console logging: level debugging, 102 messages logged Monitor logging: level debugging, 2 messages logged Logging to: vty2(0) Buffer logging: level debugging, 102 messages logged Trap logging: level informational, 47 message lines logged Log Buffer (4096 bytes): Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=39957t=39957 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Logging - terminal monitor not working [7:39957]
Amazing I removed logging synchronous on line console 0 and debug worked I am curious, what is the reason for logging synchronous preventing debug outputs on terminal lines? Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Lidiya White Sent: Saturday, March 30, 2002 5:46 PM To: [EMAIL PROTECTED] Subject: RE: Logging - terminal monitor not working [7:39957] I would add no ip route-cache on that interface and make sure that you don't have logging synchronous under line con 0... -- Lidiya White -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Pierre-Alex Guanel Sent: Saturday, March 30, 2002 3:04 PM To: [EMAIL PROTECTED] Subject: Logging - terminal monitor not working [7:39957] Kind of a silly problem but can't figure it out ... I am connected to R1 via telnet. I have turned on debugging of ip packets I also have issued the command terminal monitor Yet I do not get anything logged when I ping the Ethernet interface of R1 Any ideas? Thanks R1#sh terminal Line 2, Location: , Type: ANSI Length: 45 lines, Width: 80 columns Baud rate (TX/RX) is 9600/9600 Status: Ready, Active, No Exit Banner Capabilities: Receives Logging Output Modem state: Ready Group codes:0 Special Chars: Escape Hold Stop Start Disconnect Activation ^^xnone - - none Timeouts: Idle EXECIdle Session Modem Answer Session Dispatch never nevernone not set Idle Session Disconnect Warning never Login-sequence User Response 00:00:30 Autoselect Initial Wait not set Modem type is unknown. Session limit is not set. Time since activation: 00:41:15 Editing is enabled. History is enabled, history size is 10. DNS resolution in show commands is enabled Full user help is disabled Allowed transports are lat pad v120 mop telnet rlogin nasi. Preferred is lat. No output characters are padded No special data dispatching characters R1#sh logging Syslog logging: enabled (0 messages dropped, 0 flushes, 0 overruns) Console logging: level debugging, 102 messages logged Monitor logging: level debugging, 2 messages logged Logging to: vty2(0) Buffer logging: level debugging, 102 messages logged Trap logging: level informational, 47 message lines logged Log Buffer (4096 bytes): Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=39965t=39957 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
MAU 8228 [7:39891]
Has anyone used the IBM 8228 Token Ring MAU with Cisco routers? Do you recommend the product? Thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=39891t=39891 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: MAU 8228 [7:39892]
-Original Message- From: Pierre-Alex GUANEL [mailto:[EMAIL PROTECTED]] Sent: Friday, March 29, 2002 9:22 AM To: Cisco Subject: MAU 8228 Has anyone used the IBM 8228 Token Ring MAU with Cisco routers? Do you recommend the product? Thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=39892t=39892 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Sybex CCNP Lab [7:39527]
Hi, I have a few questions regarding Sybex CCNP Virtual Lab. SWITCHING: GENERAL INFO: a) How many Catalyst 5000 switches can you configure in the software? b) If more than 1, can you create a dual core with layer 2 / layer 3? c) What is the supervisor revision number? d) What software release is used? e) When typing a question mark and pressing enter, do you get command help (on all the commands)? LAYER 3 SWITCHING: How is layer 3 switching accomplished? a) With a NFFC card + a router b) With the NFFC and a Router Switch Module VIP Module: a) Does the 5000 support a VIP card? b) If yes is it version 1 or 2? HSRP a) Can you do HRSP? MULTICAST a) Is there a multicast server on the network that can be used to simulate multicast traffic? b) Can you display the multicast route on all the routers c) Can you configure PIM in dense mode / sparse mode? d) Can you use debug? ROUTING: a)Which routing protocols are supported? (rip version 1/2, igrp, eigrp, ospf, bgp) b) Can you put your routers in whatever configuration pleases you and have them do routing properly? c) How manyt routers do you have available? d) What model of routers can you use (or what interfaces are available on each routers) e) What IOS is used on the routers? f) What protocols are supported? IP / IPX / Apple Talk g) Can you do access-lists, route maps, distribute-list, null interfaces, passive interfaces, prefix list REMOTE ACCESS a) How many ISDN routers can you have connected at the same time? b) What ISDN features can you configure on the routers: TROUBLESHOOGING a) What troubleshooting case scenario can you emulate on the software? b) Can you use debug on the equipment ANY COMMMENT YOU WANT TO MAKE ON THIS SOFTWARE: Thank you, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=39527t=39527 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: BGP Issue... [7:38877]
The routers can be logically connected. However, to my knowledge, the best practice is that they are directly connected. Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Stanzin Takpa Sent: Tuesday, March 19, 2002 5:55 PM To: [EMAIL PROTECTED] Subject: BGP Issue... [7:38877] Is it required in eBGP that the two routers should be directly connected (physically) or can be logically connected directly. Stanzin Takpa Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=38886t=38877 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Route-map - Boson - incorrect? [7:38553]
Here are two statements from BOSON and their associated answers: When a Match is made, the Route Map can change the route with the map-tag command (TRUE) When a Match is made, the Route Map will change the route with the set command. (FALSE) (1) is there such a thing as a map-tag command. The Cisco documentation has a match tag but nothing like a map-tag http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/np1_r /1rprt1/1rindep.htm#1019548 (2) When a match is made doesn't the set command change the attribute of the route. Boson indicates in their test that this is a false statement. Am I correct or is the test correct? Thank you! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=38553t=38553 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
FW: Route-map - Boson - incorrect? [7:38554]
-Original Message- From: Pierre-Alex GUANEL [mailto:[EMAIL PROTECTED]] Sent: Saturday, March 16, 2002 1:55 PM To: Cisco Subject: Route-map - Boson - incorrect? Here are two statements from BOSON and their associated answers: When a Match is made, the Route Map can change the route with the map-tag command (TRUE) When a Match is made, the Route Map will change the route with the set command. (FALSE) (1) is there such a thing as a map-tag command. The Cisco documentation has a match tag but nothing like a map-tag http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/np1_r /1rprt1/1rindep.htm#1019548 (2) When a match is made doesn't the set command change the attribute of the route. Boson indicates in their test that this is a false statement. Am I correct or is the test correct? Thank you! Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=38554t=38554 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCNP exams [7:38097]
Just to make sure: Student A passed is CCNP last week. His certification is valid for 3 years, regardless of changes in the content of the exams or the certification. Correct? Thank you, Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ladrach, Daniel E. Sent: Wednesday, March 13, 2002 9:56 AM To: [EMAIL PROTECTED] Subject: RE: CCNP exams [7:38097] The CCNA is a joke. If a employer is requiring a CCNA or CCNP I would hope that they would do a little research and understand what goes into getting these certifications. Also, you need the CCNA to get your CCNP so I don't see how the CCNA would be more attractive. I am not sure why Cisco has changed the CCNP track again, maybe too many people are passing the exams. However, I passed all the exams in just under 6 months and I thought that self study and the books were plenty to get throught the exams. Also, the 500 or 600 dollars you spend is for advancement and marketability in our industry. I feel the most qualified candidate for a job will have On The Job Experience along with an education and certifications. Remember this is your career. Daniel Ladrach CCNA, CCNP WorldCom -Original Message- From: Brian Zeitz [mailto:[EMAIL PROTECTED]] Sent: Wednesday, March 13, 2002 9:56 AM To: [EMAIL PROTECTED] Subject: CCNP exams [7:38097] My comment is with the CCNP exams. When I started it was the 500 series, which was not long ago, now its changing to the 600 series. For some people it takes a while to pass a CCNP exam, so I have not had enough time to get a lot done in the 500 series, let alone switch to 600. I know the 600 is not out yet, but still. Also here is a question, why would someone want to take the last exam in the CCNP series, because when you take the last exam, your 2 year timer starts ticking. Where is the motivation there? I think I am just going to work on the course material, and not take the rest of the exams, $125 a pop is a lot, and you're right there are so many exams. So for CCNP it would cost me $500. Then if I wanted to do the security, another 400-500$, that saying if I passed everything on the 1st go. Then the books and courseware. Then re-certification, this is an expensive proposition. And I don't see a significant salary increase for CCNP certification. Like a regular experienced Network engineer with MCSE/CCNA makes say like 60-85K. Well that is the same range as a CCNP would make. I donno, the way some of these help wanted ads are written, you would think that CCNA is better then CCNP. I always see like CCNA highly desired. I am already scheduled for 503, so there is nothing I can do about that. But I ask myself this question. What is the difference between me going to a testing center, paying 125$ for each of these exams vs. me going in my bedroom, sitting down with a Boston or transcender to test my knowledge. I think I might do just that. Besides, everyone says it is more important to know the material, and then have some paper. I am not knocking the CCNP, it's a great program. But right now I can afford these ongoing cost, and the ongoing cost are not exactly justified. I thought the exams for the CCNP did test my knowledge of the subject fairly. My plan for right now is to learn all the material I would need to be a CCNP, but not take the rest of the exams. If an employer request I have my CCNP, Ill just say gimme $500 and Ill go do that. -Original Message- From: Yahoudi [mailto:[EMAIL PROTECTED]] Sent: Wednesday, March 13, 2002 2:15 AM To: [EMAIL PROTECTED] Subject: Re: Quality of Cisco exams [7:38063] should anyone be surprised that Cisco too is becoming victim to the certification craze? 1) cert tests for everything under the sun 2) reduction of the CCIE Lab from two days to one 3) obsolete and EOL'd equipment in the Lab 4) lower level tests that have too many filler questions centered around marketing materials 5) poorly worded questions? sometimes I wonder if this is just the excuse of those who don't really know the materials, but since I know your work, Robert, in your case I will accept your judgement on this It would be impossible for Cisco to test for everything out there - old and new. The question becomes this: is any certification forward looking or backwards looking? Face it, the whole reason for certification is for companies to go to the marketplace and show potential buyers that if they buy a particular company's products, there are plenty of people around who can work on it. This goes for any technology - from Microsoft to Linux to Cisco to anyone. Certification is nothing more than a marketing tool, and one more means to help companies sell. If certification is too easy, then sure, there is some marketplace backlash, but if certification is too hard, requires too much expertise, too much experience, then that has negative effects as well. One would hope that being a beta test, Cisco would throw out a lot of the bad
RE: Well it's my turn...CCIE#8878 [7:37145]
Congratulations! Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Richard Newman Sent: Monday, March 04, 2002 8:14 AM To: [EMAIL PROTECTED] Subject: Well it's my turn...CCIE#8878 [7:37145] With many hours of reading and hands on, not to mention all the OTJT (sometimes that's the best) I succeeded in passing on my first attempt. Thanks to all those who helped along the way. Richard Newman, CCIE#8878 Alltel Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=37173t=37145 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
VLSM and CIDR [7:37031]
If a routing protocol can do VLSM does that automatically mean that it can also do CIDR? Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=37031t=37031 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: VLSM and CIDR [7:37031]
The statement that provoked my question is from RFC 1721. They say Subnet masks are also necessary for implementation of classless addressing, as the CIDR work proposes thus the question if a routing protocol supports subnet mask does that automatically mean that it can do CIDR? ( I think the answer is no because CIDR means that you could have masks stilling bits from the newtork ID and the router may not like this I also think that historically subnetting and Variable Length subnet masking came before CIDR. But those are just speculations. I don't have examples / references to support my arguments and I would like to know if I am correct.) Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=37033t=37031 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: VLSM and CIDR [7:37031]
Chuck, to my knowledge the command ip summary-address is used to summarize IP address pools for dial-up clients, not for actually summarizing subnets. Also, Cisco CCNA Certification Guide (ISBN 0-7357-0971-8), page 393 says: EIGRP and OSPF are the only interior IP routing protocols to support route aggregation. So I am prone to conclude that the ability to do VLSM does not automatically means that you can do CIDR . My two cents ... Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Chuck Sent: Friday, March 01, 2002 7:03 PM To: [EMAIL PROTECTED] Subject: Re: VLSM and CIDR [7:37031] kinda in answer to your private message: http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ip_c /ipcprt2/1cdrip.htm watch the wrap according to this, Cisco's implementation of Ripv2 does indeed support CIDR On the other hand, getting this to work appears to be problematic. A check of Doyle shows no CIDR example for Ripv2 A look though Large Scale IP Network Solutions yields this interesting sentence: RIPV2 is able to support classless interdomain routes. It can propagate a classless route through redistribution I can't get a damn CIDR route to show up in the RIPv2 table no matter how many hokey pokies I do. At this point I'm going to assume you have tried RipV2 and have had the same frustration I just had - seeing no CIDR routes. This calls for a bit more research. Chuck Chuck wrote in message news:[EMAIL PROTECTED]; I think you're trying to outsmart yourself. Can't be done!!! ;- I showed you in my private reply the result of the EIGRP test I set up. The answer was no problem I also know from long lab rat experience that it is not a problem with OSPF. I have not tried with either IS-IS or Ripv2, but again, why not? there may be issues with older IOS code. Some vendor older models may not support it. But I have no reason based on my experience, to believe that it is an issue with current IOS code. Chuck Pierre-Alex Guanel wrote in message news:[EMAIL PROTECTED]; The statement that provoked my question is from RFC 1721. They say Subnet masks are also necessary for implementation of classless addressing, as the CIDR work proposes thus the question if a routing protocol supports subnet mask does that automatically mean that it can do CIDR? ( I think the answer is no because CIDR means that you could have masks stilling bits from the newtork ID and the router may not like this I also think that historically subnetting and Variable Length subnet masking came before CIDR. But those are just speculations. I don't have examples / references to support my arguments and I would like to know if I am correct.) Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=37045t=37031 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: VLSM and CIDR [7:37031]
Ok, you win :) Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Chuck Sent: Friday, March 01, 2002 8:32 PM To: [EMAIL PROTECTED] Subject: Re: VLSM and CIDR [7:37031] well, to continue to beat this dead horse ( like anyone cares about RIPv2 CIDR anyway ) Gateway of last resort is not set 172.17.0.0/24 is subnetted, 1 subnets C 172.17.1.0 is directly connected, TokenRing0 173.4.0.0/24 is subnetted, 1 subnets C 173.4.57.0 is directly connected, Loopback0 161.52.0.0/24 is subnetted, 1 subnets R 161.52.1.0 [120/1] via 132.31.99.8, 00:00:24, Virtual-Access1 132.31.0.0/16 is variably subnetted, 2 subnets, 2 masks C 132.31.99.8/32 is directly connected, Virtual-Access1 C 132.31.99.0/24 is directly connected, Virtual-Access1 C192.168.0.0/24 is directly connected, Serial0 C192.168.1.0/24 is directly connected, Serial1 C200.0.0.0/8 is directly connected, Loopback101 R201.0.0.0/15 [120/5] via 132.31.99.8, 00:00:11, Virtual-Access1 R96.0.0.0/4 [120/5] via 132.31.99.8, 00:00:00, Virtual-Access1 R203.0.0.0/8 [120/5] via 132.31.99.8, 00:00:00, Virtual-Access1 R129.0.0.0/12 [120/5] via 132.31.99.8, 00:00:00, Virtual-Access1 C181.48.0.0/13 is directly connected, Loopback201 R7# note all the CIDR routes in the routing table, all learned via RIP. How? interface Loopback101 ip address 201.0.0.1 255.254.0.0 ! interface Loopback1001 ip address 203.0.0.1 255.0.0.0 ! interface Loopback1002 ip address 129.1.1.1 255.240.0.0 ! interface Loopback1003 ip address 100.1.1.1 240.0.0.0 ! router rip version 2 redistribute connected metric 5 network 132.31.0.0 network 161.52.0.0 network 201.0.0.0 no auto-summary you apparently do have to redistribute the CIDR routes into RIPv2. Silly me. Why wouldn't that be obvious? Chuck Chuck wrote in message news:[EMAIL PROTECTED]; kinda in answer to your private message: http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ip_c /ipcprt2/1cdrip.htm watch the wrap according to this, Cisco's implementation of Ripv2 does indeed support CIDR On the other hand, getting this to work appears to be problematic. A check of Doyle shows no CIDR example for Ripv2 A look though Large Scale IP Network Solutions yields this interesting sentence: RIPV2 is able to support classless interdomain routes. It can propagate a classless route through redistribution I can't get a damn CIDR route to show up in the RIPv2 table no matter how many hokey pokies I do. At this point I'm going to assume you have tried RipV2 and have had the same frustration I just had - seeing no CIDR routes. This calls for a bit more research. Chuck Chuck wrote in message news:[EMAIL PROTECTED]; I think you're trying to outsmart yourself. Can't be done!!! ;- I showed you in my private reply the result of the EIGRP test I set up. The answer was no problem I also know from long lab rat experience that it is not a problem with OSPF. I have not tried with either IS-IS or Ripv2, but again, why not? there may be issues with older IOS code. Some vendor older models may not support it. But I have no reason based on my experience, to believe that it is an issue with current IOS code. Chuck Pierre-Alex Guanel wrote in message news:[EMAIL PROTECTED]; The statement that provoked my question is from RFC 1721. They say Subnet masks are also necessary for implementation of classless addressing, as the CIDR work proposes thus the question if a routing protocol supports subnet mask does that automatically mean that it can do CIDR? ( I think the answer is no because CIDR means that you could have masks stilling bits from the newtork ID and the router may not like this I also think that historically subnetting and Variable Length subnet masking came before CIDR. But those are just speculations. I don't have examples / references to support my arguments and I would like to know if I am correct.) Thanks, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=37047t=37031 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Spanning tree Protocol Questions [7:36559]
Priscilla, In the attachment (Cisco CCNA Exam Guide #640-507 Certification Guide: ISBN 0-7357-0971-8), page 167 - 168, the authors seem to indicate that CBPDUs are sent from blocked ports! The ability for CBPDUs to be sent out of blocked port seems to a determinant factor for the Spanning Tree to be recomputed after a topology change Here is a word by word copy of the passage. The part I have problem about is the one with (!!) Thanks! Pierre-Alex --(e0)Bridge-1 (e1)-- (e0)Bridge 5(e1)---(e1) Bridge 4 (e0)---(e1)Bridge 3 (e0)---(e1)Bridge 2 (e0)--- (To bridge 1 e0) Cost advertised by B2 is 100 Cost advertised by B3 is 200 Cost advertised by B5 is 10 Blocked port: Bridge 3, port e1 Bridge 5's E1 port fails...Only Bridge 4's MaxAge expires. The other bridges are still receiving CBPDUs on their root ports. After MaxAge expires, Bridge 4 will decide the following: Step 1 My E1 port is no longer my root port Step 2 The same root bridge is being advertised in a CBPDU on my E0 port (!) Step 3 No other CBPDUs are being received Step 4 My best path (and the only path, in this case) to the root is out of my E0 port; therefore, my root port is now E0.) Step 5 Because no other CBPDUs are entering my E1 port, I must be the designated bridge on that segment. So, I will start sending CBPDUs on E1, addming my E0 port cost (10) to the cost of the CBPDU received in the CBPDU entering E0 (200) for a total of 210 (!!) Kind Regards, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=36691t=36559 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Spanning tree Protocol Questions [7:36559]
So a blocked port can receive AND send BPDUs Correct? Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Cotts Sent: Wednesday, February 27, 2002 2:54 PM To: [EMAIL PROTECTED] Subject: RE: Spanning tree Protocol Questions [7:36559] When you have an opportunity to read Clark and Hamilton the explanation will fit. A blocked port is not physically cut. Data traffic is blocked while BPDUs are allowed. Else, how would it know that a change in topology has taken place? Step 2. Yes, all along bridge 4 has been receiving CBPDUs on both ports. Since e1 had the lower root path cost, it became the root port. There is no need to forward the CBPDUs it receives on e0 out e1 because it has already determined that a lower cost path exists out e1. Once the e1 link fails bridge 4 already knows that it has another path to the root bridge via bridge 3. Step 5. Logically follows. It takes the CBPDUs that it has always been recieving on e0 and now forwards it out e1. It has no clue why it no longer receives CBPDUs on e1. Now think about what happens when bridge 5 e1 becomes functional again. -Original Message- From: Pierre-Alex Guanel [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 27, 2002 1:46 PM To: [EMAIL PROTECTED] Subject: Re: Spanning tree Protocol Questions [7:36559] Priscilla, In the attachment (Cisco CCNA Exam Guide #640-507 Certification Guide: ISBN 0-7357-0971-8), page 167 - 168, the authors seem to indicate that CBPDUs are sent from blocked ports! The ability for CBPDUs to be sent out of blocked port seems to a determinant factor for the Spanning Tree to be recomputed after a topology change Here is a word by word copy of the passage. The part I have problem about is the one with (!!) Thanks! Pierre-Alex --(e0)Bridge-1 (e1)-- (e0)Bridge 5(e1)---(e1) Bridge 4 (e0)---(e1)Bridge 3 (e0)---(e1)Bridge 2 (e0)--- (To bridge 1 e0) Cost advertised by B2 is 100 Cost advertised by B3 is 200 Cost advertised by B5 is 10 Blocked port: Bridge 3, port e1 Bridge 5's E1 port fails...Only Bridge 4's MaxAge expires. The other bridges are still receiving CBPDUs on their root ports. After MaxAge expires, Bridge 4 will decide the following: Step 1 My E1 port is no longer my root port Step 2 The same root bridge is being advertised in a CBPDU on my E0 port (!) Step 3 No other CBPDUs are being received Step 4 My best path (and the only path, in this case) to the root is out of my E0 port; therefore, my root port is now E0.) Step 5 Because no other CBPDUs are entering my E1 port, I must be the designated bridge on that segment. So, I will start sending CBPDUs on E1, addming my E0 port cost (10) to the cost of the CBPDU received in the CBPDU entering E0 (200) for a total of 210 (!!) Kind Regards, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=36716t=36559 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Spanning tree Protocol Questions [7:36559]
Never mind ... I think I got it! Thanks, Pierre-Alex -Original Message- From: Pierre-Alex Guanel [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 27, 2002 4:10 PM To: Daniel Cotts; [EMAIL PROTECTED] Subject: RE: Spanning tree Protocol Questions [7:36559] So a blocked port can receive AND send BPDUs Correct? Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Cotts Sent: Wednesday, February 27, 2002 2:54 PM To: [EMAIL PROTECTED] Subject: RE: Spanning tree Protocol Questions [7:36559] When you have an opportunity to read Clark and Hamilton the explanation will fit. A blocked port is not physically cut. Data traffic is blocked while BPDUs are allowed. Else, how would it know that a change in topology has taken place? Step 2. Yes, all along bridge 4 has been receiving CBPDUs on both ports. Since e1 had the lower root path cost, it became the root port. There is no need to forward the CBPDUs it receives on e0 out e1 because it has already determined that a lower cost path exists out e1. Once the e1 link fails bridge 4 already knows that it has another path to the root bridge via bridge 3. Step 5. Logically follows. It takes the CBPDUs that it has always been recieving on e0 and now forwards it out e1. It has no clue why it no longer receives CBPDUs on e1. Now think about what happens when bridge 5 e1 becomes functional again. -Original Message- From: Pierre-Alex Guanel [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 27, 2002 1:46 PM To: [EMAIL PROTECTED] Subject: Re: Spanning tree Protocol Questions [7:36559] Priscilla, In the attachment (Cisco CCNA Exam Guide #640-507 Certification Guide: ISBN 0-7357-0971-8), page 167 - 168, the authors seem to indicate that CBPDUs are sent from blocked ports! The ability for CBPDUs to be sent out of blocked port seems to a determinant factor for the Spanning Tree to be recomputed after a topology change Here is a word by word copy of the passage. The part I have problem about is the one with (!!) Thanks! Pierre-Alex --(e0)Bridge-1 (e1)-- (e0)Bridge 5(e1)---(e1) Bridge 4 (e0)---(e1)Bridge 3 (e0)---(e1)Bridge 2 (e0)--- (To bridge 1 e0) Cost advertised by B2 is 100 Cost advertised by B3 is 200 Cost advertised by B5 is 10 Blocked port: Bridge 3, port e1 Bridge 5's E1 port fails...Only Bridge 4's MaxAge expires. The other bridges are still receiving CBPDUs on their root ports. After MaxAge expires, Bridge 4 will decide the following: Step 1 My E1 port is no longer my root port Step 2 The same root bridge is being advertised in a CBPDU on my E0 port (!) Step 3 No other CBPDUs are being received Step 4 My best path (and the only path, in this case) to the root is out of my E0 port; therefore, my root port is now E0.) Step 5 Because no other CBPDUs are entering my E1 port, I must be the designated bridge on that segment. So, I will start sending CBPDUs on E1, addming my E0 port cost (10) to the cost of the CBPDU received in the CBPDU entering E0 (200) for a total of 210 (!!) Kind Regards, Pierre-Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=36727t=36559 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
