[nsp] input/output counter wierdness

[Beprojects.com]

Anybody else running 12.2(18)S3 on a 7500 and seeing counter wierdness?  I
have two strange things:

First, I've been pinging the device on the other end of this T1 for at least
30 seconds, but it shows zero packets since I reset the counter.  However it
also says the 5 min rate is 219000 and 62000.  I'm pretty sure if you reset
the counter, these are supposed to go back to zero, so how can they have
rates when there are no packets flowing (well there are, but the router
isn't counting right).

Serial0/0/0:1 is up, line protocol is up
  Hardware is cyBus T3
  Internet address is
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 255/255, txload 36/255, rxload 10/255
  Encapsulation HDLC, crc 16, loopback not set
  Keepalive set (10 sec)
  Last input 00:00:03, output 00:00:06, output hang never
  Last clearing of "show interface" counters 00:00:32
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/5/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1152 kilobits/sec
  5 minute input rate 62000 bits/sec, 116 packets/sec
  5 minute output rate 219000 bits/sec, 153 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicast)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions no alarm present



Second, this T1 is running at 17Mbps!!!  Wow, not bad for a link that has a
BW of 1.536Mbps.  Oh yeah and it hasn't seen any packets for 2 1/2 minutes.

Serial0/0/0:3 is up, line protocol is up
  Hardware is cyBus T3
  Internet address is
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 255/255, txload 14/255, rxload 136/255
  Encapsulation HDLC, crc 16, loopback not set
  Keepalive set (10 sec)
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 00:02:41
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: weighted fair
  Output queue: 0/1000/64/0 (size/max total/threshold/drops)
     Conversations  0/6/256 (active/max active/max total)
     Reserved Conversations 0/0 (allocated/max allocated)
     Available Bandwidth 1152 kilobits/sec
  5 minute input rate 17785000 bits/sec, 4158 packets/sec
  5 minute output rate 3171000 bits/sec, 2319 packets/sec
     0 packets input, 0 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicast)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions no alarm present

Anybody else seeing this?  It's odd, it's like all of the counters stop
working and then at some point in the future, they start up again.  Traffic
passes fine and MRTG appears to be reporting what I assume is the correct
traffic, but the in counters are all jacked up.