[c-nsp] ASR1001 RAM

[Chuck Church]

I've been talking to our Cisco guys about SW redundancy, and the advantages of sub-package mode.  They're claiming the sub-package mode uses less memory than the consolidated mode.  We've never played with it, but maybe something to look at.  

Chuck

-----Original Message-----
From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Antonio Soares
Sent: Tuesday, August 12, 2014 11:00 AM
To: 'Gabriel'; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] ASR1001 RAM

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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