Re: Token Ring Crossover Cable???
stuff snipped I didn't go through and check out the link but what is happening in Scott's diagram below is that the Bay Centillion 100 Switch is serving the purpose of the MAU/Hub for insertion into the ring. The Centillion Switch allows for each port to be it's own ring. (please correct me if I'm wrong there Scott) You got it spot on, Ed. The rings are created on the backplane of Bay 5000 series concentrators. The first port of the first blade on each ring is uplinked to a C100 TR switch port. Our routers are also connected to switch ports with a unique ring number. For those that have never worked in a Token Ring shop, this is similar to segmenting an Ethernet LAN. The ring sizes (port count) are determined by the number of stations. We try to limit ours to about 100 to 150 users. Server rings are smaller, maybe on the order of 20-40 stations. Token Ring uses pins 3,4,5,6 whereas Ethernet uses pins 1,2,3,6. Thus your crossover requirement using 3,4 crossed and 5,6 crossed. Ed Scott Froese _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Token Ring Crossover Cable???
Alex- Actually, there is such an animal as a Token Ring crossover cable. You are correct that you can't use one to "back to back" Token Ring ports. They are used in our environment for a direct station attachment (Cisco router ports) to Bay Networks C100 Tokenspeed switch ports. The RJ-45 pin outs are: 1--1 2--2 3--4 4--3 5--6 6--5 7--7 8--8 This link sort of backs up my story: http://www.bestdatasource.com/Bay/Detail/cBayAS0018001.htm Scott ""W. Alan Robertson"" [EMAIL PROTECTED] wrote in message 00a701c09d44$1b031e20$[EMAIL PROTECTED]">news:00a701c09d44$1b031e20$[EMAIL PROTECTED]... Alex, There is no such animal... Token Ring is much more sophisticated that Ethernet at the physical layer. There is simply no way for either station at each end of a crossover cable to replicate the electrical function of an MAU. I wish I had a link that pointed to a good explaination of the process. Anybody have one? Alan~ - Original Message - From: "Scott Pierson" [EMAIL PROTECTED] Newsgroups: groupstudy.cisco To: [EMAIL PROTECTED] Sent: Thursday, February 22, 2001 8:45 PM Subject: Re: Token Ring Crossover Cable??? Token ring crossover cable? Alex wrote: Hi Can I use a token ring crossover cable between to routers? Thanks Alex _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Memory question
Hunt- The "show version" command will give you this information. Scott Froese ""Hunt Lee"" [EMAIL PROTECTED] wrote in message 974uf8$a6b$[EMAIL PROTECTED]">news:974uf8$a6b$[EMAIL PROTECTED]... Hello there, Can anyone please teach me how can I check how much Flash and DRAM on a router? Any help is greatly appreciated. Regards, Hunt Lee IP Solution Analyst Cable and Wireless (Sydney) _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: no domain controller available
I think what he means is that portfast (or its Extreme equivalent) is not enabled. Enabling portfast essentially eliminates the full spanning tree calculation when link is detected on a switchport. If I'm not mistaken the port goes directly from blocking to forwarding when portfast is enabled. So, in its basic form, this is a spanning tree issue. Or am I way off? Scott ""Santosh Koshy"" [EMAIL PROTECTED] wrote in message 96kkmq$qu0$[EMAIL PROTECTED]">news:96kkmq$qu0$[EMAIL PROTECTED]... HUH??? please explain... Why would it be spanning tree. technically if i wanted too... i could assign an ip address that is not on my VLAN and attach it to the switch... Of course I will NOT be able to comunicate but that will not affect spanning tree... ""Dost"" [EMAIL PROTECTED] wrote in message 96iprq$9j8$[EMAIL PROTECTED]">news:96iprq$9j8$[EMAIL PROTECTED]... Once in while we experience same problem with desktops but we do not have Cisco switches in place, we have extreme black diamond switches. I think this problem may have to do spanning tree. Thanks Inamul "Jim Bond" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hello, I have users at different buildings (on different subnets), when they move their laptop to another building, they have to do ip release/renew, otherwise, they won't get new ip address. Swithes are 5000/5500/6500. Port fast is already enabled. Anything needs to be done on PCs? Thanks in advance. Jim __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: HSRP Question - RSM's on 6500's
Hi Glenn- We have our core configured exactly as you want to do. The following link details how to do it: http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sft_6_1/configgd /redund.htm Basically, the redundant supervisors fail over automatically. You need to enable a "four-way" HSRP configuration with the four MSFCs. In our case, we have the odd vlans using switch "B" as the active HSRP peer and the even vlans using switch "A" as the active peer. You adjust the standby priorities to accomplish this: VLAN "Even" Switch "A", MSFC 1 (Mod 15) == Priority 110 Switch "A", MSFC 2 (Mod 16) == Priority 109 Switch "B", MSFC 1 (Mod 15) == Priority 108 Switch "B", MSFC 2 (Mod 16) == Priority 107 VLAN "Odd" Switch "A", MSFC 1 (Mod 15) == Priority 108 Switch "A", MSFC 2 (Mod 16) == Priority 107 Switch "B", MSFC 1 (Mod 15) == Priority 110 Switch "B", MSFC 2 (Mod 16) == Priority 109 Hope this helps, Scott ""Glenn Allison"" [EMAIL PROTECTED] wrote in message 96cnp0$iq6$[EMAIL PROTECTED]">news:96cnp0$iq6$[EMAIL PROTECTED]... I have two Catalyst 6500's, each with an RSM in module 15 and module 16. The RSM in module 15 is configured, but the module in 16 is not. The two Catalyst 6500's have a couple VLAN's which are trunked together with ISL, and we are doing HSRP between the RSM's in module 15. If one of the Catalyst's died or if there was a problem with one of the RSM's, the traffic would route through the other Catalyst that is still up. Here is my question...We want to utilize the RSM's sitting in module 16 on each of the switches, and add even more redundancy to the site. Is there a way to configure the RSM's so if one module died, the other one would pick up in its place, while also keeping the HSRP running between to two seperate switches as well? Any ideas would be a great help, or if you have a link on Cisco's site that handles this situation. Thanks- Glenn Allison, CCNP, CCDA, MCSE _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RIP v1/v2 - Textbook vs. What Really Happens....
Hi all- I'm really getting frustrated with reading answers to textbook troubleshooting excercises that don't seem to hold up in real life. I'd like to post the following scenario for help: Routing TCP/IP, Vol. 1, page 321 Question 1. The explanation that router RTC will incorrectly interpret the v2 advertisements from RTA and RTB (192.168.13.80/29 and 192.168.13.90/28) as 192.168.13.64/27 made sense to me at first glance. Since I only have two routers to work with at this point, I set up a config to partially test if this is the case. I was able to duplicate RTA's config with a 3620. For RTC, I set up a 2502 with only the TR configured. My thought was that at least this will allow me to see how RTC interprets the advertisement from RTA. When I looked at the route table for RTC expecting to see 192.168.13.64/27, I was surprised to see that the entry was actually 192.168.13.80/29. Is this because I don't have the second network on RTC as in the example? Or am I totally missing something Any help will be appreciated... On another note, can I connect the 2502s S0 and S1 back to back with a DTE/DCE crossover cable to simulate another network? Thanks in advance Scott _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ICQ Port
Hi Erwin- If I recall, we had a hell of a time figuring out how to block this and all the other IM applications. If you block its "standard" port 4000, it will just grab another one. The way we broke it was to find the address block for the servers it connects to and add an access list to deny access to them. Scott ""Erwin Novriyanto"" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Dear all, Does anybody know for ICQ Port to establish the connection. is it using TCP Port or UDP port ? I want to block this connection through my firewall. Big thank for your help. Rgds, Erwin _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: redundancy
My two cents worth... Set up a gigabit Etherchannel ISL trunk between the switches. For the NIC's use two of the Intel Pro/100's; one homed to each switch. You then configure the adapters as a "team" in both an adaptive load balancing and fault tolerance mode. There is fairly decent information on these topics at www.intel.com. Make sure that the ports on each switch are in the same VLAN and that the VLAN is permitted on the trunk. Hope this helps... Scott "Jim Bond" [EMAIL PROTECTED] wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hello, I've got an important NT server and would like to use redundancy. I've got 2 6509 switches available. What's the common way to do? Should I put 2 NICs in the server and enable fast-ether channel? Or should I seperate those 2 NICs on 2 6509? Thanks in advance. Jim __ Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RIP Config Question - Doyle's Book
Hi all- I'm having a lot of trouble figuring out a configuration exercise and am hoping someone here can help. Can someone please explain to me why the RIP config for router RTF on page 222 of "Routing TCP/IP Vol 1" is: router rip network 192.168.4.0 network 192.168.6.0 It looks to me like it should be: router rip network 192.168.4.0 network 192.168.5.0 I checked the errata and didn't see anything about it. Thanks in advance, Scott _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
