[c-nsp] Adjusting TCAM allocation weird behavior on 7600
Antonio Soares
amsoares at netcabo.pt
Wed Aug 6 06:40:26 EDT 2014
Those settings work on a SUP720-3BXL:
++++++++++++++++++++++++++++
Router#sh mls cef maximum-routes
FIB TCAM maximum routes :
=======================
Current :-
-------
IPv4 - 768k
MPLS - 16k (default)
IPv6 + IP Multicast - 120k (default)
Router#
++++++++++++++++++++++++++++
In your case, it's strange we don't see the MPLS value marked as "default".
Are you sure you removed the "mls cef maximum-routes" for MPLS ? You should
have only one line:
Router#sh run | inc mls cef max
mls cef maximum-routes ip 768
Router#
Regards,
Antonio Soares, CCIE #18473 (RS/SP)
amsoares at netcabo.pt
http://www.ccie18473.net
-----Original Message-----
From: Rod James Bio [mailto:rjubio at gmail.com]
Sent: terça-feira, 5 de Agosto de 2014 20:38
To: Antonio Soares; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Adjusting TCAM allocation weird behavior on 7600
Hmm I somewhat tried that with these,
sh mls cef maximum-routes
FIB TCAM maximum routes :
=======================
Current :-
-------
IPv4 + MPLS - 512k (default)
IPv6 + IP Multicast - 256k (default)
User configured :-
---------------
IPv4 - 768k
MPLS - 16k
IPv6 + IP Multicast - 120k (default)
Upon reboot :-
-----------
IPv4 - 768k
MPLS - 16k
IPv6 + IP Multicast - 120k (default)
but still no dice. IOS bug?
Regards,
On 8/6/14, 3:27, Antonio Soares wrote:
> Maybe IPv6 and IP Multicast must share the same region of the TCAM.
>
> Just try to remove all the "mls cef maximum-routes" commands then just
> add this one:
>
> mls cef maximum-routes ip 768
>
>
>
>
> Regards,
>
> Antonio Soares, CCIE #18473 (RS/SP)
> amsoares at netcabo.pt
> http://www.ccie18473.net
>
>
> -----Original Message-----
> From: Rod James Bio [mailto:rjubio at gmail.com]
> Sent: terça-feira, 5 de Agosto de 2014 19:41
> 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-ser
>>> ie 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/
>>>
>> _______________________________________________
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>
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