[c-nsp] RX No Buff Errors on 7206 w/NPE-G1

[Vincent Aniello]

On a 7206VXR with a NPE-G1 processor I am seeing input errors on a
Gigabit Ethernet interface.  The input errors are due to "ignored"
packets:

 

303 input errors, 0 CRC, 0 frame, 0 overrun, 303 ignored

 

The ignored packets coincide with "RX No Buff" errors that appear in the
output from a 'show controller' command:

 

RX No Buff       303

 

There is a about 30Mb/s of incoming traffic, mostly multicast, on the
interface and according to the "show processes cpu history" command the
maximum CPU over the last 72 hours was 60% with an average CPU of 30%
during peak times.

 

Can anyone provide suggestions on how to correct these errors or am I
running up against the processing limits of this router?  If so, are the
"RX No Buff" errors an indication of a limitation of the Gigabit
Ethernet interface or the NPE-G1 CPU in the router?  Would upgrading to
a NPE-G2 correct the problem?

 

Any assistance would be appreciated.

 

Thanks.

 

--Vincent

 

 

 



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