Drew Weaver wrote:
I assume this is either a bug, or something else equally enjoyable.
Today, I noticed that one of our switches was acting up, so I logged into it
and did the usual show interfaces, sh proc cpu sort, etc etc.
I noticed that the switch's uplink interface indicated that it was doing
700Mbps to the router it is connected to, the router indicated that it was only
getting 200Mbps from the switch.
So either there is a counter bug, or the switch was sending traffic that was
being dropped by the router or dropped later by the switch (after it was
counted?), or something else equally amusing?
Does anyone have any thoughts on this/seen this before?
The default interval for updating the counters is five minutes. If the
traffic is bursty it isn't unusual for the interface counters to
disagree, sometimes substantially. I believe that the load interval
timer starts on boot or when counters are cleared on the interface so
don't expect them to line up with NTP.
For faster response and better granularity you can use the
"load-interval [seconds]" interface-level command. Minimum supported
value is 30 seconds.
--
Jay Hennigan - CCIE #7880 - Network Engineering - j...@impulse.net
Impulse Internet Service - http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV
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