[c-nsp] 7204vxr freeze-up question

[Masood Ahmad Shah]

Well, which IOS version you run?

I know there are some issues with Intel chipset while it gets connected into
cisco GBIC. I strongly suggest updating driver of NIC (if there is), upgrade
IOS or change your NIC to check it out...


Regards,
Masood Ahmad Shah

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Adam Greene
Sent: Wednesday, August 15, 2007 8:43 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] 7204vxr freeze-up question

Hi,

I'm running into an issue with a 7204VXR/NPE-300 router with 128MB RAM.

A 1000Base-SX GBIC is plugged into one of the slots (not sure of the part #
of the card into which the GBIC plugs).

We were running some dueling gateways speed tests with the router (packet
stream is sent via iPerf to router A, which forwards it to router B, which
forwards it back to router A, which forwards it back to router B, until TTL
is decremented to 0).

Soon after I start sending 75Mbps - 80Mbps of traffic to the router's gig
interface via iPerf, the gig interface stops sending / receiving any traffic
whatsoever. The CLI of the router remains up, the gig interface reports it
is up / up, memory and cpu utilization remain low. No logs are generated.
Traffic on other interfaces is unaffected. I shut / no shut the gigabit
interface, but traffic still refuses to pass. Only a reload of the router
rectifies the issue. 

I wonder if there is a debug command that could provide some insight into
the problem. At this point I am suspecting a hardware issue (GBIC, card, or
backplane).

Thanks for any insights ....

Adam

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