[c-nsp] Adjusting TCAM allocation weird behavior on 7600
Rod James Bio
rjubio at gmail.com
Thu Aug 7 06:37:33 EDT 2014
Issuing just "reload" should have been fine, no? I've always done it
like that multiple times trying different values.
I suspect, as Mack pointed earlier, the new values are not copied to the
slave-sup after a write mem, but it never gets copied.
Regards,
On 8/7/14, 18:27, Antonio Soares wrote:
> When you changed the settings, you rebooted the all box, right ?
>
> Check this:
>
> https://supportforums.cisco.com/discussion/11333356/cisco-7609-rsp720-3cxl-g
> e-mls-cef-maximum-routes
>
>
>
> 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: quinta-feira, 7 de Agosto de 2014 03:18
> To: Mack McBride; Antonio Soares; cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Adjusting TCAM allocation weird behavior on 7600
>
> On my OP, I mentioned that I have two supervising engine on SSO mode which
> is:
> 1 5 Route Switch Processor 720 10GE (Activ RSP720-3CXL-10GE
> 2 5 Route Switch Processor 720 10GE (Hot) RSP720-3CXL-10GE
>
> Though, the second one was added much later. I was running
> c7600rsp72043-adventerprisek9-mz.153-1.S1.bin before but now I updated it to
> c7600rsp72043-adventerprisek9-mz.153-3.S3.bin.
>
> Running "sh mls cef max", I see:
> #sh mls cef maximum-routes
> FIB TCAM maximum routes :
> =======================
> Current :-
> -------
> IPv4 + MPLS - 512k (default)
> IPv6 + IP Multicast - 256k (default)
>
> User configured :-
> ---------------
> IPv4 - 768k
> MPLS - 24k
> IPv6 + IP Multicast - 112k (default)
>
> Upon reboot :-
> -----------
> IPv4 - 768k
> MPLS - 24k
> IPv6 + IP Multicast - 112k (default)
>
>
> BUT "remote command switch show mls cef max", I see:
> FIB TCAM maximum routes :
> =======================
> Current :-
> -------
> IPv4 + MPLS - 512k (default)
> IPv6 + IP Multicast - 256k (default)
>
> Could this mean that the two sups are not sync? Here is the output of show
> redundancy states:
>
> #sh redundancy states
> my state = 13 -ACTIVE
> peer state = 8 -STANDBY HOT
> Mode = Duplex
> Unit = Primary
> Unit ID = 1
>
> Redundancy Mode (Operational) = sso
> Redundancy Mode (Configured) = sso
> Redundancy State = sso
> Maintenance Mode = Disabled
> Communications = Up
>
> client count = 169
> client_notification_TMR = 30000 milliseconds
> keep_alive TMR = 9000 milliseconds
> keep_alive count = 1
> keep_alive threshold = 18
> RF debug mask = 0x0
>
>
> Regards,
>
> On 8/6/14, 23:51, Mack McBride wrote:
>> This is a silly question but do you have dual sups?
>> That could be causing the issue.
>>
>> Also what code revision are you running?
>> Finally, what line cards are installed?
>> The message you are getting indicates the config is not working For
>> whatever reason, one of the reasons could be line card incompatibility.
>>
>> A show module should list the line cards.
>>
>> Also once you configure the routes on the supervisor and save the
>> config Execute the following command:
>>
>> remote command switch show mls cef max
>>
>> That will determine if the max routes command is getting properly
>> Pushed to the switch processor.
>>
>> And a side note multicast and ipv6 both use two entries.
>> The other poster that said you were 28 short was incorrect.
>> Those settings should have worked.
>>
>> Mack McBride | Network Architect | ViaWest, Inc.
>> O: 720.891.2502 | mack.mcbride at viawest.com | www.viawest.com |
>> LinkedIn | Twitter | YouTube
>>
>>
>>
>> -----Original Message-----
>> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf
>> Of Rod James Bio
>> Sent: Tuesday, August 05, 2014 1:38 PM
>> 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-se
>>>>> r 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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>
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