Re : MAC Address to IP Address conversion
Title: Re : MAC Address to IP Address conversion Hello All, I am looking for some sniffer software that could show me a list of MAC Address to IP Address mapping of my network. I checked with the trial copies of CNAPro and Sniffer PRO would could not find the functionality. Can anyone suggest. Thanks & Regards Amit
RE: Re : MAC Address to IP Address conversion
Title: RE: Re : MAC Address to IP Address conversion Got the list from my Router's ARP cache -Original Message- From: Amit Gupta (EHPT) IS-IT [SMTP:[EMAIL PROTECTED]] Sent: Sunday, November 26, 2000 3:19 PM To: '[EMAIL PROTECTED]' Subject: Re : MAC Address to IP Address conversion Hello All, I am looking for some sniffer software that could show me a list of MAC Address to IP Address mapping of my network. I checked with the trial copies of CNAPro and Sniffer PRO would could not find the functionality. Can anyone suggest. Thanks & Regards Amit
Broadcasts on Serial interface
Title: Broadcasts on Serial interface Hello All, There has been a slow but steady increase in the number of broadcasts and input errors on the serial interface. Can someone suggest please.. Thanks & Regards Amit sh inter serial 0/0 Serial0/0 is up, line protocol is up Hardware is QUICC Serial MTU 1500 bytes, BW 512 Kbit, DLY 2 usec, reliability 255/255, txload 120/255, rxload 129/255 Encapsulation HDLC, loopback not set, keepalive set (10 sec) Last input 00:00:00, output 00:00:00, output hang never Last clearing of "show interface" counters 00:05:43 Queueing strategy: fifo Output queue 0/40, 5 drops; input queue 0/75, 0 drops 5 minute input rate 26 bits/sec, 67 packets/sec 5 minute output rate 242000 bits/sec, 63 packets/sec 21856 packets input, 10955019 bytes, 0 no buffer Received 46 broadcasts, 0 runts, 0 giants, 0 throttles 4 input errors, 2 CRC, 2 frame, 0 overrun, 0 ignored, 0 abort 21225 packets output, 10721370 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions DCD=down DSR=up DTR=up RTS=up CTS=up
RE: Ping response between subnets slow
The Response time of pinging from switch to switch is not slow > -Original Message- > From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED]] > Sent: Wednesday, January 03, 2001 8:16 AM > To: [EMAIL PROTECTED] > Subject: Re: Ping response between subnets slow > > What about the times when you ping from switch to switch? Is it slow when > you > try that? > > In a message dated 1/2/01 6:10:33 PM Eastern Standard Time, > [EMAIL PROTECTED] writes: > > > > Hi, > > > > 10 ms seems high on a switched network. > > > > I assume that both networks (Switches) have a trunk between each other > and > > from one switch back to the router if you are using VLAN's. > > > > Check your ethernet interface on your router. See what traffic it is > > doing. Check for collisions, Late collisions, CRC's. > > > > Check the port on the switch connecting to the router. Make sure the > > aggree on the port speed (they will or no comms) and the duplex settings > > > (the most common problem). DO NOT LEAVE THE SWITCH IN AUTO NEGOTIATE > MODE. > > > > > > Just some thoughts. > > > > Teunis > > Hobart, Tasmania > > Australia > > > > > > On Tuesday, January 02, 2001 at 05:25:17 AM, Amit Gupta wrote: > > > > > Hi Everybody, > > > > > > Need some help on the following problem > > > > > > I have 2 subnets configured on my LAN say ( x.x.1.0 > > > and x.x.2.0 )with a SM of 255.255.255.0. > > > There are 2 Catalyst switches ( each one on a > > > different subnet) > > > > > > The router is configured with a primary and a > > > secondary address on the ethernet port say x.x.1.1 and > > > x.x.2.1 > > > > > > When I ping a station on one subnet to another and > > > viceversa the response time is very high (sometimes > > > upto 80ms) while the response time while pinging in > > > the same subnet is less than 10ms. > > > > > > Need some clues on the possible reasons for this > > > > > > > > > Thanks & Regards > > > > > > Amit > > > > > Mark Zabludovsky ~ CCNA, CCDA, 1/2-NP > [EMAIL PROTECTED] > > "Even if I knew I had only 1 more week to live, I would still > schedule > my CCIE lab. I would just have to work a little harder I guess. After all, > > without any goals in life, I'm dead already." >~Mark Zabludovsky~ > > _ > 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]
PAgP Message
Title: PAgP Message Hi, I am preparing for the CCNP Exams. I would like to know the reason for the following messages i am getting on my 6009 switch. 6000> (enable) 2000 Nov 07 01:39:08 %PAGP-5-PORTFROMSTP:Port 2/46 left bridg e port 2/46 2000 Nov 07 01:39:10 %PAGP-5-PORTTOSTP:Port 2/46 joined bridge port 2/46 2000 Nov 07 01:41:36 %PAGP-5-PORTFROMSTP:Port 2/32 left bridge port 2/32 2000 Nov 07 01:41:37 %PAGP-5-PORTTOSTP:Port 2/32 joined bridge port 2/32 2000 Nov 07 01:43:35 %PAGP-5-PORTFROMSTP:Port 2/32 left bridge port 2/32 2000 Nov 07 01:43:37 %PAGP-5-PORTTOSTP:Port 2/32 joined bridge port 2/32 This results in frequent disconnections from the ports. Need your suggestions Regds Amit
CCNP Preparation library
Title: CCNP Preparation library Hi everybody, Is the CCNP Prep Library ( 2nd Edition ) from Cisco Press available in bookstores in US ? Thanks & Regards Amit
RE: question : ethernet collision rule of thumb...
Title: RE: question : ethernet collision rule of thumb... Hi , How can I find out the collision rate of .1% ( comparing the collisions with Output packets or bytes) Here's the output from my ethernet interface 119069488 packets output, 3373784736 bytes, 0 underruns 31 output errors, 41597688 collisions, 0 interface resets 0 babbles, 0 late collision, 5543538 deferred Thanks Amit -Original Message- From: George Harper [SMTP:[EMAIL PROTECTED]] Sent: Thursday, November 16, 2000 9:52 AM To: E Joseph Cc: [EMAIL PROTECTED] Subject: Re: question : ethernet collision rule of thumb... The network would be considered unhealthy if it is experiencing more than .1% of packets colliding (do the math). As for your question regarding what does it take to shut a port down (errDisable) take a look at this URL: http://www.cisco.com/warp/public/473/20.html -g On Wed, 15 Nov 2000, E Joseph wrote: |Date: Wed, 15 Nov 2000 16:33:37 -0800 (PST) |From: E Joseph <[EMAIL PROTECTED]> |To: [EMAIL PROTECTED] |Subject: question : ethernet collision rule of thumb... | |I would first like to thank everyone. I have been a member of this |groups for several years now. I have never actually posted a question, |generally I just absorb others questions. I realise there is no |concrete answer on this, BUT how many collision on a shared media |ethernet segment does it take before having a problem?? I was just |invovled in a situation where we had a hub hanging off a hub connected |to our 6509. The switchport error disabled and I had to track the |devices down. I beleive you will always see some collisions in a shared |ethernet environment??? At what collision rate should you get |worried??? How much does it take to shut a switch port down??? | | Thanks, | Ed _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Intermittent connectivity loss [7:14416]
Hi Daniel, We had a similar situation few days back. Users connected on One of our switches were complaining of intermittent loss in connectivity. We had a problem with the GBIC port on one of our Catalyst switch. Regds Amit -Original Message- From: Daniel Cotts [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 01, 2001 6:37 AM To: [EMAIL PROTECTED] Subject:RE: Intermittent connectivity loss [7:14416] I understand you to say that there are two 5505s on each floor. Half of the users on each floor connect to each 5505 through a single vlan. Each 5505 connects to a 6509. Has anyone changed the config of any of the switches lately? Any hardware changes? Thinking intermittant hardware failure. Do all the users on a floor who loose connectivity connect to the same 5505? Does the aggregate of all users on all floors who loose connectivity connect to the 6509 through the same blade via their 5505s? Any error messages on the 6509? What's the uptime? What does a show log provide? What is the bandwidth of the links between the 5505s and the 6509? If gig, do you have any spare GBICs? I have heard reports of failing units. Any construction in the building? How about lots of dust in the wiring closets? Any commonality to the electrical feeds for the switches? UPS or not? Can you log error messages to a syslog server? > -Original Message- > From: Don Oxman [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, July 31, 2001 6:44 PM > To: [EMAIL PROTECTED] > Subject: Intermittent connectivity loss [7:14416] > > > I must admit this is my first question posted to the group, > though I've been > a lurker for a long time. Here it is: > > We have workstations on 10 different floors (each floor > divided in half, > each half a different subnet), all connected to 5505's (20 in > total). From > the 5505's fiber goes to a 6509, then ultimately to the WAN > via ATM. The > servers all plug into the 6509. So far, so good. > > For the past 3 days we have had workstations (not all, but > about 50%)on > every floor lose connectivity to the network, whereby all of > our NT and > NetWare servers are unavailable and web browsing is gone. > This has happened > a total of 6 times, and there doesn't appear to be a pattern > to the time or > network utilization. Most times the users have to reboot, > though sometimes > they can reconnect without a reboot. > > Can anyone help steer me in the right direction? Our WAN > guys can't help, > and I have a feeling that it's going to be up to me to figure > this one out. > > Thanks a lot. > > --Don > > _ > Get your FREE download of MSN Explorer at > http://explorer.msn.com/intl.asp [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14446&t=14416 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
