[c-nsp] 7204vxr freeze-up question
Adam Greene
maillist at webjogger.net
Wed Aug 22 14:14:13 EDT 2007
Thanks, Chuck and Rodney.
CEF is enabled. I'm sending about 95Mbps of 1470-byte UDP packets to the
PA-GE interface, then the dueling gateways is trying to push that traffic
even higher. The router is connected to a radio that can only do 100Mbps, so
there's no chance of traffic exceeding 100Mbps in either direction.
I'll try 12.4(16) and see what happens.
Here's the 'show int' during the outage condition (particularly worrisome to
me are the 18 interface resets, all caused by the test. There are also a lot
of output drops, which is understandable, 1 no buffer and 1 throttle):
r2#sh int g2/0
GigabitEthernet2/0 is up, line protocol is up
Hardware is WISEMAN, address is 0007.8420.e838 (bia 0007.8420.e838)
Description: *** Wireless Network Mgmt VLAN ***
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 15/255, rxload 24/255
Encapsulation 802.1Q Virtual LAN, Vlan ID 1., loopback not set
Keepalive set (10 sec)
Unknown duplex, Unknown Speed, link type is autonegotiation, media type is
SX
output flow-control is on, input flow-control is on
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 11/75/0/0 (size/max/drops/flushes); Total output drops:
1173852
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 96026000 bits/sec, 7955 packets/sec
30 second output rate 59502000 bits/sec, 5143 packets/sec
29510670 packets input, 2249605461 bytes, 1 no buffer
Received 1686266 broadcasts, 0 runts, 0 giants, 1 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 1513394 multicast, 611 pause input
0 input packets with dribble condition detected
30538392 packets output, 3381947542 bytes, 0 underruns
0 output errors, 0 collisions, 18 interface resets
0 babbles, 0 late collision, 0 deferred
3 lost carrier, 0 no carrier, 2 pause output
0 output buffer failures, 0 output buffers swapped out
I don't have a 'show controller' during the outage condition. I'll try to
obtain it.
I agree, before we swap the router, we should do some more normal tests and
see if the problem persists even then at 80Mbps in / 40Mbps out levels.
Thanks,
Adam
----- Original Message -----
From: "Rodney Dunn" <rodunn at cisco.com>
To: "Adam Greene" <maillist at webjogger.net>
Cc: <cisco-nsp at puck.nether.net>
Sent: Wednesday, August 22, 2007 12:13 PM
Subject: Re: [c-nsp] 7204vxr freeze-up question
> Can you get it in that condition and get a 'sh controller' and
> 'show int'?
>
> It sounds like the ingress rx driver is locking up.
>
> Try the latest 12.4 mainline code (12.4(16)) if you have it in the
> lab and see if it's there too.
>
> Rodney
>
> On Wed, Aug 22, 2007 at 11:45:29AM -0400, Adam Greene wrote:
>> Hmm.
>>
>> Upgraded router to 12.3(23).
>>
>> Even after the upgrade, passing 82.3Mbps in / 42.5Mbps out over the
>> 7204VXR's PA-GE interface (plus 1000BaseSX GBIC) causes the interface to
>> stop passing traffic.
>>
>> Reseating the GBIC does not rectify the issue. However, reseating the
>> PA-GE
>> card does.
>>
>> Tried moving the PA-GE card from slot 2 to slot 3 (different PCI bus) and
>> the problem still occurs.
>>
>> Tried with a different PA-GE card. Problem still occurs.
>>
>> I'll try with another GBIC, but that seems unlikely to resolve the issue.
>>
>> It's sounding like I may need to replace this router. Ugh.
>>
>> If anyone has any bright ideas, they are welcome.
>>
>> Thanks,
>> Adam
>>
>>
>> ----- Original Message -----
>> From: "Adam Greene" <maillist at webjogger.net>
>> To: "Masood Ahmad Shah" <masood at nexlinx.net.pk>;
>> <cisco-nsp at puck.nether.net>
>> Sent: Friday, August 17, 2007 10:22 AM
>> Subject: Re: [c-nsp] 7204vxr freeze-up question
>>
>>
>> > Masood,
>> >
>> > Thanks for the advice. Current IOS is 12.2(13)T16. We'll look into
>> > upgrading
>> > it. I'll have to see what will support the NPE300; we're running very
>> > few
>> > features, though, so I don't expect to have an issue...
>> >
>> > The GBIC is plugged into a Bridgewave radio; power cycling the radio
>> > does
>> > not resolve the issue, only cycling the router does, so I think the
>> > issue
>> > is
>> > on the router end. But we'll keep in mind the suggestion.
>> >
>> > Thanks again,
>> > Adam
>> >
>> > ----- Original Message -----
>> > From: "Masood Ahmad Shah" <masood at nexlinx.net.pk>
>> > To: "'Adam Greene'" <maillist at webjogger.net>;
>> > <cisco-nsp at puck.nether.net>
>> > Sent: Wednesday, August 15, 2007 9:19 PM
>> > Subject: RE: [c-nsp] 7204vxr freeze-up question
>> >
>> >
>> >> 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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>> >>
>> >>
>> >
>> >
>> >
>> >
>> >
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