[j-nsp] Media issue or some bug

Truman Boyes truman at suspicious.org
Fri Aug 1 17:00:41 EDT 2008


Junaid,

I am assuming that you save HDLC on the E3s and that keepalives are  
on. Basically the IFD (interface) went into a "down state" and the  
sequence numbers between the peers differed....

Based on the logs you provided, it was likely a physical issue on the  
E3.

Kind regards,
Truman


On 1/08/2008, at 5:35 AM, Junaid wrote:

> Hi,
>
> Three of my E3s (on two different PICs) from my core M320 towards my
> remote M7 went down all of sudden (at the same time) and stayed down.
> I am receiving similar logs on all the routers:
>
>
> 05:00:46  M7i /kernel: e3-0/1/0.0 up: received keepalive
> 05:01:22  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa64/reflected=0x00002089 sequence numbers differ by 3 or
> more
> 05:01:22  M7i mib2d[3068]: SNMP_TRAP_LINK_DOWN: ifIndex 36,
> ifAdminStatus up(1), ifOperStatus down(2), ifName e3-0/1/0
> 05:01:34  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa65/reflected=0x0000208b sequence numbers differ by 3 or
> more
> 05:01:43  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa66/reflected=0x0000208b sequence numbers differ by 3 or
> more
> 05:01:52  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa67/reflected=0x0000208d sequence numbers differ by 3 or
> more
> 05:02:00  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa67/reflected=0x0000208d sequence numbers differ by 3 or
> more
> 05:02:10  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa68/reflected=0x0000208e sequence numbers differ by 3 or
> more
> 05:02:20  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa6a/reflected=0x0000208f sequence numbers differ by 3 or
> more
> 05:02:29  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa6a/reflected=0x00002090 sequence numbers differ by 3 or
> more
> 05:02:42  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa6c/reflected=0x00002091 sequence numbers differ by 3 or
> more
> 05:02:51  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa6d/reflected=0x00002092 sequence numbers differ by 3 or
> more
> 05:03:02  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa6e/reflected=0x00002093 sequence numbers differ by 3 or
> more
> 05:03:10  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa6f/reflected=0x00002094 sequence numbers differ by 3 or
> more
> 05:03:18  M7i /kernel: e3-0/1/0 down:
> send=0x4846fa70/reflected=0x00002095 sequence numbers differ by 3 or
> more
>
>
> After a few hours, they came back online - and we did not change any
> configuration on any of the routers. Can anyone give me a clue as to
> what caused this error message to surface?
>
>
>
> Regards,
>
> Junaid
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