Jon Lewis wrote:
I've got a 6509 with sup720-3bxl running 12.2(18)SXD7b. It's forwarding
several hundred mbit/s across a number of gig ports on WS-X6416-GBIC cards.
That's an old IOS. You should probably consider an upgrade to the later
SXF release (e.g. 10, 11, 14)
There are a number of netflow related bugs referenced in the release notes.
I've noticed it's gotten very slow at certain things (like write mem),
and when looking at the switch (remote command switch show proc cpu), I
was kind of shocked to see 85% CPU utilization or higher across all time
avgs. The biggest CPU eating process seems to be netflow export
223 2563111984 126342970 20287 38.27% 42.39% 42.03% 0 NDE - IPV4
Other than disabling export or moving traffic off this device, are there
things I can do to tone this down? The couple hundred mbit/s this
switch is forwarding is supposed to be no big deal for this platform.
It's likely number of flows, rather than bit rate.
What do the following say:
sh mls netflow table-contention detailed
sh mls netflow flowmask
sh mls nde
sh platform hardware capacity netflow
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