[nsp] PA-MC-2T3+ reporting traffic way too high

[Jared Mauch]

On Mon, Jul 21, 2003 at 01:56:38PM -0700, Jeff Chan wrote:
> Hi All,
> A netadmin friend suggested I sign up for this list so I thought
> I'd see if you guys had some ideas about a possible bug we're
> seeing.
> 
> We recently upgraded to 12.2(14)S3 and notice that the traffic
> reported on a PA-MC-2T3+ in a 7513 on a VIP-2/50 is way too high:

	I have a bug for this.

	CSCeb68858

	I've seen it both on all types of CT3 itnerfaces, both on
PA-2T3+, PA-MC-2T3 series, and CT3IP50 boards.

	- Jared

> > supranet01>sh int Serial10/1/1/8:0
> > Serial10/1/1/8:0 is up, line protocol is up
> >   Hardware is cyBus 2CT3+
> >   Description: AA Peering Point #1
> >   Internet address is NN/30
> >   MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
> >      reliability 255/255, txload 26/255, rxload 48/255
> >   Encapsulation PPP, crc 16, loopback not set
> >   Keepalive set (10 sec)
> >   LCP Open
> >   Open: IPCP
> >   Last input 00:00:11, output 00:00:00, output hang never
> >   Last clearing of "show interface" counters 16:30:49
> >   Input queue: 0/75/0/11 (size/max/drops/flushes); Total output drops: 1569
> >   Queueing strategy: fifo
> >   Output queue: 0/40 (size/max)
> >   5 minute input rate 9545000 bits/sec, 3026 packets/sec
> >   5 minute output rate 12496000 bits/sec, 2970 packets/sec
> >      2341811 packets input, 778137258 bytes, 0 no buffer
> >      Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
> >      0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 1 abort
> >      2477327 packets output, 1393787280 bytes, 0 underruns
> >      0 output errors, 0 collisions, 0 interface resets
> >      0 output buffer failures, 0 output buffers swapped out
> >      2 carrier transitions no alarm present
> >   Timeslot(s) Used: 1-24, Transmitter delay is 0 flags, transmit queue length 5
> >   non-inverted data
> 
> How can an interface with 1536 Kb of bandwidth report or do 9
> and 12 megabits of traffic?  The answer is that it can't.  :)
> The 5 minute average values our mrtg is picking up by snmp also
> got spikey after the upgrade.  The peak values may be correct
> but the average seems missing, filtered out, or too low.
> 
> We did turn of cef since it seemed to cause a problem, possibly
> with ISL.  (We plan to move to Dot1Q for trunking vlans later.)
> 
> Has anyone else seen this?
> 
> Cheers,
> 
> Jeff C.
> -- 
> Jeff Chan
> mailto:cisco-nsp at jeffchan.com
> http://www.jeffchan.com/
> 
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> http://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/

-- 
Jared Mauch  | pgp key available via finger from jared at puck.nether.net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.