[afnog] Router ethernet port hang

[Murigi, Moses M]

See configs below 

 

Kind regards

 

interface FastEthernet0/2/0

ip address 10.0.0.1 255.255.255.252

duplex auto

speed auto

!

interface FastEthernet0/2/1

no ip address

duplex auto

speed auto

!

interface FastEthernet0/2/1.1

encapsulation dot1Q 212

ip address 10.1.1.65 255.255.255.252

ip summary-address eigrp 2008 0.0.0.0 0.0.0.0 100

 

From: Bernard Wanyama [mailto:bwanyama at syntechug.com] 
Sent: Tuesday, May 11, 2010 11:34 AM
To: Murigi, Moses M
Cc: afnog at afnog.org
Subject: Re: [afnog] Router ethernet port hang

 

Moses,

Please send through the requested info, and also include DUPLEX and
SPEED settings, plus the cable state (new, old, reliably used before,
etc)

Many bugs I encounter are related to cables, speed and duplex.
Also, you need to check that you are not overloading the 3845 chassis.
There are a number of caveats for running the newer, higher-density
cards.

To give you some hope, I, happy to tell you that I have two production
3845s running with the HWIC 2FE on IOS Version 12.4(15)T11, without
issues for 3 months now.


Kind regards,
Bernard



On 10 May 2010 20:47, Oluwaseun Ojedeji <seun.ojedeji at gmail.com> wrote:

In addition to mark's troubleshooting points, you might also want to
back track to how the router was performing before you added the
cards(was it a coincidence that the pro started after adding the
cards?),is the card compatible with the ios, how about using one card
after the other? you might also want to disconnect the LAN side and
check out the effect of that, sure you must have try to changed the
cables connecting this ports?

Regards

On Mon, May 10, 2010 at 6:00 PM, Mark Tinka <mtinka at globaltransit.net>
wrote:

	On Monday 10 May 2010 09:04:32 pm Murigi, Moses M wrote:
	
	> We are running a 3845 router in which we have added a
	>  HWIC 2FE cards. After every two  to four days the card
	>  hang's  and we have to restart the router.
	> The router is on Version 12.4(13r)T10
	> Do anyone a have solution to this?

	You'd need to provide more information on this situation:
	
	       - does the port remain up/up?
	       - does the port got into up/down?
	       - does the port go down/down?
	       - are there any errors on the port before rebooting?
	       - what do the logs say?
	       - does a 'shut/unshut' help before rebooting?
	       - does unplugging/plugging the cable help?
	       - are other ports in the router affected when it fails?
	       - how much traffic is being forwarded when it fails?
	       - have you tried an updated IOS release?
	
	Is there any other troubleshooting you've done I may have
	missed out in the above?
	
	Mark.

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-- 
------------------------------------------------------------------------
Seun Ojedeji,
System Analyst/Network Admin
ICT Centre,
University of Nigeria, Enugu Campus.
web: www.unn.edu.ng
Tel:   08035233535
Email: seun.ojedeji at unn.edu.ng
         seun.ojedeji at gmail.com


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Fixed: +256 414 251591


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