[c-nsp] Adjusting TCAM allocation weird behavior on 7600
Vinny_Abello at Dell.com
Vinny_Abello at Dell.com
Tue Aug 5 15:05:02 EDT 2014
Dell - Internal Use - Confidential
768 + 28 + (100 *2) = 996. You're still short by 28. My understanding is only IPv6 counts for double. When you aren't sharing IPv6 and multicast, the multicast prefixes only count as one. I think you're counting them as two like the IPv6 prefixes.
-Vinny
-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Rod James Bio
Sent: Tuesday, August 5, 2014 2:41 PM
To: Antonio Soares; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Adjusting TCAM allocation weird behavior on 7600
This is what I tried,
#sh mls cef maximum-routes
FIB TCAM maximum routes :
=======================
Current :-
-------
IPv4 + MPLS - 512k (default)
IPv6 + IP Multicast - 256k (default)
User configured :-
---------------
IPv4 + MPLS - 768k (default)
IPv6 - 100k
IP Multicast - 28k
After a wr mem and reboot this is what I got:
*Aug 6 02:15:46.975 PHT: %MLSCEF-SP-1-MAX_ROUTE_MISMATCH: Maximum routes config mismatch. Reconfigure the maximum routes values and reload the box.
As you will see the max routes adds to 1024k but still It resets to the default values.
Regards,
On 8/6/14, 1:28, Antonio Soares wrote:
> As already mentioned, the sum should be 1024k, for example, I have
> this on a
> SUP720-3BXL:
>
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> sup720-3bxl#show mls cef maximum-routes FIB TCAM maximum routes :
> =======================
> Current :-
> -------
> IPv4 - 1007k
> MPLS - 1k (default)
> IPv6 + IP Multicast - 8k (default)
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>
>
> 1007+1+(2x8) = 1024
>
>
> Regards,
>
> Antonio Soares, CCIE #18473 (RS/SP)
> amsoares at netcabo.pt
> http://www.ccie18473.net
>
>
> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Rod
> James Bio
> Sent: terça-feira, 5 de Agosto de 2014 16:13
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Adjusting TCAM allocation weird behavior on 7600
>
> I read before the link you sent.
>
> BTW, Here is the output of "sh mls cef max":
>
> #sh mls cef maximum-routes
> FIB TCAM maximum routes :
> =======================
> Current :-
> -------
> IPv4 + MPLS - 512k (default)
> IPv6 + IP Multicast - 256k (default)
>
> User configured :-
> ---------------
> IPv4 - 600k
> MPLS - 10k
> IPv6 - 100k
> IP Multicast - 28k
>
> Upon reboot :-
> IPv4 - 600k
> MPLS - 10k
> IPv6 - 100k
> IP Multicast - 28k
>
> Regards,
>
> On 8/5/14, 22:15, Antonio Soares wrote:
>> Check this document, maybe it can help you:
>>
>> http://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-serie
>> s-swit ches/117712-problemsolution-cat6500-00.html
>>
>> Can you share the "show mls cef max" output ?
>>
>>
>>
>> Regards,
>>
>> Antonio Soares, CCIE #18473 (RS/SP)
>> amsoares at netcabo.pt
>> http://www.ccie18473.net
>>
>>
>> -----Original Message-----
>> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf
>> Of Rod James Bio
>> Sent: terça-feira, 5 de Agosto de 2014 12:03
>> To: cisco-nsp at puck.nether.net
>> Subject: [c-nsp] Adjusting TCAM allocation weird behavior on 7600
>>
>> Hi, I'd like to ask anyone in the group who owns cisco 7600 if they
>> had experience when they adjusted the allocation to increase the
>> maximum routes for ipv4 etc. We are near the 512K ipv4 limit (~509K)
>> for the
>> 7600 (default size) and I tried adjusting the tcam allocation by running:
>>
>> mls cef maximum-routes ip 750
>> mls cef maximum-routes ipv6 100
>> mls cef maximum-routes mpls 10
>> mls cef maximum-routes ip-multicast 28
>>
>> But after rebooting the whole box I got an error, "Maximum routes
>> config mismatch. reconfigure the maximum routes values and reload the
>> box" (Sorry this is all I copied from the console) and the tcam was
>> back to the default values.
>>
>> I have a dual RSP720-3CXL-10GE sups on sso mode and
>> c7600rsp72043-adventerprisek9-mz.153-1.S1.bin if those info help.
>>
>> Thanks,
>> _______________________________________________
>> cisco-nsp mailing list cisco-nsp at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-nsp
>> archive at http://puck.nether.net/pipermail/cisco-nsp/
>>
> _______________________________________________
> cisco-nsp mailing list cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>
_______________________________________________
cisco-nsp mailing list cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/
More information about the cisco-nsp
mailing list