[c-nsp] Interface Bug?

[John Neiberger]

I finally got around to cycling this interface--several times--and it
did not help. I even removed and re-configured the "fair-queue"
statement, yet the interface remains stuck in fifo mode.

Any thoughts? I really need WFQ on this interface. Actually, I
*really* need LLQ but this interface can't do LLQ or CBWFQ. I might
have a spare 2600 lying around. I should just move this connection off
the 7513 and move it to a more capable interface.

Until that time, any ideas?

Thanks,
John

On 12/6/05, Rodney Dunn <rodunn at cisco.com> wrote:
> I've seen this before and the only way I could seem to
> correlate what the customer said was they toggled
> in along with changing between dCEF/CEF. I was never
> able to reproduce it from what I remember. This
> must be on an FSIP.
>
> Rodney
>
> On Tue, Dec 06, 2005 at 11:48:47AM -0700, John Neiberger wrote:
> > Take a look at this:
> >
> > interface Serial1/2
> >   ip address 10.a.b.c 255.255.255.0
> >  fair-queue       <-------*
> >  serial restart-delay 0
> > end
> >
> > Router#sho int s1/2
> > Serial1/2 is up, line protocol is up
> >   Hardware is cxBus Serial
> >   Description:
> >   Internet address is 10.a.b.c/24
> >   MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec,
> >      reliability 255/255, txload 10/255, rxload 3/255
> >   Encapsulation HDLC, crc 16, loopback not set
> >   Keepalive set (10 sec)
> >   Restart-Delay is 0 secs
> >   Last input 00:00:00, output 00:00:00, output hang never
> >   Last clearing of "show interface" counters 5d02h
> >   Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops:
> > 3489
> >   Queueing strategy: fifo        <--------*
> >   Output queue: 0/40 (size/max)
> >   5 minute input rate 20000 bits/sec, 22 packets/sec
> >   5 minute output rate 61000 bits/sec, 22 packets/sec
> >      21513041 packets input, 735104142 bytes, 0 no buffer
> >      Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
> >      6 input errors, 2 CRC, 0 frame, 0 overrun, 0 ignored, 4 abort
> >      21623314 packets output, 224367928 bytes, 0 underruns
> >      0 output errors, 0 collisions, 0 interface resets
> >      0 output buffer failures, 0 output buffers swapped out
> >      0 carrier transitions
> >      RTS up, CTS up, DTR up, DCD up, DSR up
> > Router#
> >
> > The interface is configured for WFQ, but it is stuck on FIFO. I can't
> > bounce the interface during the day or I'd try it to see if that fixes
> > the problem. I don't recall ever seeing an interface get stuck like
> > this. This is a 7513 running 12.2(28). Do you think that I just need to
> > bounce the interface after-hours?
> >
> > Obviously, this isn't a major problem, just a curiosity, but I wanted
> > to get some opinions on it. In the meantime, I'll check CCO for bugs.
> >
> > Thanks,
> > John
> > --
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