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

George Stylianou georges at is.co.za
Mon Aug 4 09:06:15 EDT 2003


We are seeing an issue with the counters as well.

No outbound stats for T3 interfaces on 7576 running 12.2(14)S3


  30 second input rate 41177000 bits/sec, 9524 packets/sec
  30 second output rate 0 bits/sec, 0 packets/sec

And the other end of the circuit reports this...

 30 second input rate 34736000 bits/sec, 16647 packets/sec
 30 second output rate 0 bits/sec, 0 packets/sec

George



> -----Original Message-----
> From: Jared Mauch [mailto:jared at puck.nether.net] 
> Sent: 21 July 2003 23:13
> To: Jeff Chan
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [nsp] PA-MC-2T3+ reporting traffic way too high
> 
> 
> 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.
> _______________________________________________
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> 


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