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interface counters on 881

Hi,

I notice strange input rates on the interfaces of a 881 router:

show int fa4

..

  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec

..

  30 second input rate 85000 bits/sec, 11 packets/sec

  30 second output rate 16000 bits/sec, 9 packets/sec

     221434 packets input, 287889736 bytes

..

..

   142286 packets output, 15683576 bytes, 0 underrun

How can 11 packets/sec be 85000 bits/sec -- average packet size of 8KB?.

The total packets input (221434 packets versus 287+ MB) also shows this

kind of a 10KB+ average packet size.  There is ahardly any traffic through

the router when the above snapshot was taken so 11 packets/sec sounds right, but

not the 85Kbits/sec.

Am I reading those numbers wrong? Any comments would be highly appreciated.

The router is running c880data-universalk9-mz.151-4.M4.bin and config is simple

with a single Vlan (inside NAT) with a public IPs on fa4 and a couple of IPs for

dynamic NAT. Everything works fine except for these interface counters that look worng.

Thanks

Selva

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1 REPLY

Re: interface counters on 881

11 packets/sec be 85000 bits/sec -- average packet size of 8KB    85000 bits/11 = 7727 bit  =  965 bytes

dont forget to rate my post

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