Re: [c-nsp] ASR opinions..
On Fri, Sep 2, 2011 at 5:56 AM, Mark Tinka <mtinka@globaltransit.net> wrote:
Like the ASR1002-F, the ASR1001 is based on an ESP5 forwarding processor. That comes with 512,000 FIB entries maximum.
As a side note, unlike the ASR1002-F, the ASR1001 can be upgraded (software license) form the default 2.5Gbps forwarding performance to 5Gbps.
To my knowledge this is not true as the 1001 has the Intel RP1.5...
We're talking about FIB slots (the ESP) and not RIB slots (the RP).
Sorry to resurrect an old thread, but I'm also confused on this ASR1001 FIB question. The Cisco ASR 1000 ESP data sheet (http://www.cisco.com/en/US/prod/collateral/routers/ps9343/data_sheet_c78-450...) lists the ASR1001 separately from the ASR1002-5G. It claims the ASR1001 does 1M IPv4 and 1M IPv6 routes. (Not to be confused with the numbers on the ASR 1000 RP data sheet, which say it can do up to 9M with 8GB RAM doing selective download.) Does anyone have a link to a definitive document clearly showing FIB numbers for the ASR1001? I've got an email into our Cisco SE, but I don't think they're motivated to sell us a lower-end box. :-) -cjp
On Tuesday, January 31, 2012 06:38:10 AM Christopher J. Pilkington wrote:
Does anyone have a link to a definitive document clearly showing FIB numbers for the ASR1001? I've got an email into our Cisco SE, but I don't think they're motivated to sell us a lower-end box. :-)
On that link, Tables 1 and 3 contradict each other re: the ASR1001. However, I confirmed with our SE, and he says no way the ASR1001 supports anything more than 512,000 v4 entries and 128,000 v6 entries (which is Table 3). Maybe someone on the list from Cisco can help fix the documentation. Mark.
Mark, I made sure with the BU, and they confirmed that ASR1001 with 8GB RAM can handle 1M routes per the data sheet. The difference between ASR1001 and ASR1002 with EFP5 is due to a more powerful integrated RP on ASR1001 (Not really RP2, but closer to RP2 than RP1) and more memory (4GB is max on RP1) Arie On Wed, Feb 1, 2012 at 5:50 AM, Mark Tinka <mtinka@globaltransit.net> wrote:
On Tuesday, January 31, 2012 06:38:10 AM Christopher J. Pilkington wrote:
Does anyone have a link to a definitive document clearly showing FIB numbers for the ASR1001? I've got an email into our Cisco SE, but I don't think they're motivated to sell us a lower-end box. :-)
On that link, Tables 1 and 3 contradict each other re: the ASR1001.
However, I confirmed with our SE, and he says no way the ASR1001 supports anything more than 512,000 v4 entries and 128,000 v6 entries (which is Table 3).
Maybe someone on the list from Cisco can help fix the documentation.
Mark.
On Wednesday, February 08, 2012 11:28:24 PM Arie Vayner wrote:
Mark,
Hello Arie. Sorry for the very late reply.
I made sure with the BU, and they confirmed that ASR1001 with 8GB RAM can handle 1M routes per the data sheet.
Are we talking 1,000,000 FIB entries, as I don't see how control plane RAM can influence FIB capacity in this particular case :-)? Mark.
Mark, I guess it has to do with the fact that every FIB entry also has a data structure on the RP, as control plane has to calculate the FIB (i.e. CEF...) and then copy the result into the forwarding plane (ESP). Arie On Thu, Mar 8, 2012 at 1:34 PM, Mark Tinka <mtinka@globaltransit.net> wrote:
On Wednesday, February 08, 2012 11:28:24 PM Arie Vayner wrote:
Mark,
Hello Arie.
Sorry for the very late reply.
I made sure with the BU, and they confirmed that ASR1001 with 8GB RAM can handle 1M routes per the data sheet.
Are we talking 1,000,000 FIB entries, as I don't see how control plane RAM can influence FIB capacity in this particular case :-)?
Mark.
On Thursday, March 08, 2012 08:22:55 PM Arie Vayner wrote:
Mark,
I guess it has to do with the fact that every FIB entry also has a data structure on the RP, as control plane has to calculate the FIB (i.e. CEF...) and then copy the result into the forwarding plane (ESP).
So we're saying that the forwarding plane on the ASR1001 can handle 1,000,000 hardware entries out of the factory, but that you'll need to have the 8GB of control plane memory installed in the router to achieve that? Interesting. I'd have thought 4GB of control plane memory would be sufficient :-). Mark.
The low end ASRs are poor boxes for full BGP table internet edge applications. They have many other great applications, but the reason they are bad here is simply route limits in the FIB. The asr1001 only supports 512,000 IPV4 routes in the FIB at any given point in time, and 128,000 IPV6 routes. The full IPV4 table will exceed that soon, and that will be well within the lifespan of the box. The 1 million figure is for route reflector applications only. On Wed, Feb 8, 2012 at 8:28 AM, Arie Vayner <ariev@vayner.net> wrote:
Mark,
I made sure with the BU, and they confirmed that ASR1001 with 8GB RAM can handle 1M routes per the data sheet. The difference between ASR1001 and ASR1002 with EFP5 is due to a more powerful integrated RP on ASR1001 (Not really RP2, but closer to RP2 than RP1) and more memory (4GB is max on RP1)
Arie
On Wed, Feb 1, 2012 at 5:50 AM, Mark Tinka <mtinka@globaltransit.net> wrote:
On Tuesday, January 31, 2012 06:38:10 AM Christopher J. Pilkington wrote:
Does anyone have a link to a definitive document clearly showing FIB numbers for the ASR1001? I've got an email into our Cisco SE, but I don't think they're motivated to sell us a lower-end box. :-)
On that link, Tables 1 and 3 contradict each other re: the ASR1001.
However, I confirmed with our SE, and he says no way the ASR1001 supports anything more than 512,000 v4 entries and 128,000 v6 entries (which is Table 3).
Maybe someone on the list from Cisco can help fix the documentation.
Mark.
On 2012-03-08 18:25, PC wrote:
The low end ASRs are poor boxes for full BGP table internet edge applications. They have many other great applications, but the reason they are bad here is simply route limits in the FIB.
The asr1001 only supports 512,000 IPV4 routes in the FIB at any given point in time, and 128,000 IPV6 routes.
Current ASR1001 do NOT have that limitation: <http://www.cisco.com/en/US/prod/collateral/routers/ps9343/data_sheet_c78-441072.html>
Performance * 1,000,000 IPv4 or 1,000,000 IPv6 routes * BGP RR scalability to 2,000,000 IPv4/IPv6 routes (using 4-GB memory) or 9,000,000 IPv4/IPv6 routes (using 8-GB memory)
The numbers were based on when I spoke to our SE when considering purchasing one a couple years back. It sounds like they may have a revision 2 or new route processor out now which supports more under this model? In which case you should be ok, but I'd get it in writing from your rep to cover all your basis. On Thu, Mar 8, 2012 at 11:38 AM, Christian 'wiwi' Wittenhorst < wiwi@progon.net> wrote:
On 2012-03-08 18:25, PC wrote:
The low end ASRs are poor boxes for full BGP table internet edge applications. They have many other great applications, but the reason they are bad here is simply route limits in the FIB.
The asr1001 only supports 512,000 IPV4 routes in the FIB at any given point in time, and 128,000 IPV6 routes.
Current ASR1001 do NOT have that limitation:
<http://www.cisco.com/en/US/**prod/collateral/routers/** ps9343/data_sheet_c78-441072.**html<http://www.cisco.com/en/US/prod/collateral/routers/ps9343/data_sheet_c78-441072.html>
Performance * 1,000,000 IPv4 or 1,000,000 IPv6 routes * BGP RR scalability to 2,000,000 IPv4/IPv6 routes (using 4-GB memory) or 9,000,000 IPv4/IPv6 routes (using 8-GB memory)
participants (5)
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Arie Vayner -
Christian 'wiwi' Wittenhorst -
Christopher J. Pilkington -
Mark Tinka -
PC