[c-nsp] 7600: yet another counters problem...

Alexandre Snarskii snar at paranoia.ru
Sat Jun 30 12:46:49 EDT 2007


Hi!

Looks like 12.2(33)SRB1 (or, may be, RSP720), introduced new
"semi-cosmetic" bug with counters. Interfaces is not able 
to report speed and byte counters correctly when load is 
above 3.5Gbit/sec...

For example, right now, show int te 1/4 shows me: 

  5 minute output rate 3416802000 bits/sec, 753529 packets/sec

and snmp graphs shows the same picture - port sending nothing
more than 3.5gbit, like it's congested, or router just unable 
to handle this load...

Well, another side of this link terminated on a foundry switch, 
which reports that actual load is abour 4Gbit: 

  300 second input rate: 3962505208 bits/sec, 758136 packets/sec, 40.83% utilization

link not congested and packetloss not occured..



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