[c-nsp] Cisco ASR1k Slow response for show ip cache flow
Mauritz Lewies
mauritz at three6five.com
Wed Nov 9 11:17:30 EST 2011
Thanks
I tried using the escape but this did not help.
Its faster to export the whole netflow table to text via "show ip cache flow | tee url" then run a grep in that file than to run it on the ASR direct.
I suspect it's software related, seems like a visit to TAC is in order...
On 09 Nov 2011, at 11:21 AM, Simon Leinen wrote:
> Mack McBride writes:
>> It could be the specific match string.
>
> Right, especially if there are many dots in the regexp.
>
>> What match is timing out?
>
> If there are dots, try to escape them (e.g. "| include 192\.0\.2\.").
> But the output volume of "show ip cache flow" is probably also
> significantly larger than the output of "show ip bgp".
>
> On the Catalyst 6500 platform, there are handy option for the equivalent
> of "show ip cache flow" to narrow the output to certain
> source/destination subnets or UDP/TCP port numbers. That is more
> efficient than having the router convert the entire Netflow table to
> text and then filtering 99.9% of the text away by regexp. Does the
> ASR1k software have these kinds of options?
>
> Best regards,
> --
> Simon.
More information about the cisco-nsp
mailing list