[c-nsp] ASR1001 RAM

[Antonio Soares]

These outputs are always relevant. Here you should see what is the maximum routes available. It should be different in case you have 4GB or 8GB or RAM.


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 Gabriel
Sent: terça-feira, 12 de Agosto de 2014 23:15
To: Cisco Network Service Providers
Subject: Re: [c-nsp] ASR1001 RAM

I'm now filtering the full tables on these routers. In this situation, would those outputs still be relevant?

On Tue, Aug 12, 2014 at 5:59 PM, Antonio Soares <amsoares at netcabo.pt> wrote:
> Can you share these outputs from both routers ?
>
> "show cef fib"
> "show cef table"
>
>
> 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 Gabriel
> Sent: terça-feira, 12 de Agosto de 2014 14:36
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] ASR1001 RAM
>
> Hi,
>
> we have 2 ASR1001 in one location. They each receive a full table from different providers and have an iBGP session between them. One of them generated this message today:
>
> *Aug 11 23:11:16.983: %FIB-2-FIBDOWN: CEF has been disabled due to a low memory condition. It can be re-enabled by configuring "ip cef [distributed]"
>
> For some reason, it only saw 500k prefixes today (I'm assuming the provider is doing some aggregation before sending the full table?).
> I had to put some filtering in place and then re-enabled CEF. IOS-XE 
> version is 3.07.01.S.152-4.S1
>
> We have the exact same setup in another location (with different ISPs). The only difference is the IOS-XE version: 3.06.00.S.152-2.S. I saw one of these exceed 500k and there were no error messages whatsoever.
>
>
>
> On Mon, Aug 11, 2014 at 9:35 PM, Rich Lewis <RLewis at sis.tv> wrote:
>> Those memory figures below are from an ASR1001 running IOS-XE 03.09.00.S / 15.3(2)S.
>>
>> What was the image that you ran into memory issues with? Just so I 
>> know to avoid it! :-)
>>
>>
>>> -----Original Message-----
>>> From: Gustav UHLANDER [mailto:gustav.ulander at steria.se]
>>> Sent: 09 August 2014 23:33
>>>
>>> Yea that depends on sw version.
>>> We ran into the issue when upgrading to a newer image on routers 
>>> that receive full feeds from upstream.
>>> Sent it to tac and they said it was memory issue.
>>>
>>> Skickas med OWA för iPad
>>> ________________________________________
>>>> Från: cisco-nsp <cisco-nsp-bounces at puck.nether.net> för Rich Lewis 
>>>> <RLewis at sis.tv>
>>>> Skickat: den 6 augusti 2014 21:30:55
>>>>
>>>>
>>>> FWIW, we have full tables on an ASR1001 with 4GB RAM, and with 
>>>> add-path
>>>> enabled:
>>>>
>>>> 503890 network entries using 124964720 bytes of memory
>>>> 982424 path entries using 110031488 bytes of memory BGP using
>>>> 281251490 total bytes of memory
>>>>
>>>> I guess it depends what else you're doing, but 4GB would seem ample 
>>>> on the face of it.
>>
>>
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