[c-nsp] ASR 1002-F BGP table size

[Arie Vayner (avayner)]

Rick,

As the ASR1K is a hardware based platform the route scale limitation
does not only come from the amount of RAM it has, but also from the
capacity of the ESP (forwarding plane).

If you are looking at sparing/redundancy, take a 2nd look at the
ASR1006... Or maybe just the ASR1004. The advantage of the modular
models is that as you need more forwarding plane capacity, you can
upgrade the RP/ESP modules, and gain dramatic performance boost.

You can find the details here:
http://www.cisco.com/en/US/prod/collateral/routers/ps9343/data_sheet_c78
-450070.html

(For the 1002F, we use ESP2.5, which has, in general, 50% of the
capacity of a ESP5, hence the 500K IPv4 routes)

Arie

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Rick Ernst
Sent: Tuesday, March 23, 2010 14:49
To: Mounir Mohamed Ali
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] ASR 1002-F BGP table size

Ah. So I did remember the 500K IPv4 limit. :( Where did you find the
docs
with the 500K limit.

Since it has 1GB RAM, the route limitation must be "somewhere else"?

I'll need to see how the 1002 (non-F) works out. Maybe sparing RP/ESP
will
work out better than having a full spare chassis.  Any other platform to
fill this role?

Thanks,


On Mon, Mar 22, 2010 at 6:39 PM, Mounir Mohamed Ali <
mounirmohammad at gmail.com> wrote:

> Hi Rick,
>
> Here is a quick comparison.
>
> The Cisco ASR 1002-F has RP1 with 1G RAM, ESP 2.5 with 1G RAM (2.5Gbps
> bandwidth), SIP-10, 1SPA, and 4 GE ports  built in chassis, running
IOS-XE
> and has SW redundancy via VM, capcable to have 500K IPv4 and 125K Ipv6
>
> The Cisco ASR1002 has 1 RP1 integrated in the chassis comes with 4GB
RAM by
> default, 1 ESP slot for ESP5/10 to provide 5Gbps/10Gbps bandwidth, it
also
> has 4-built in GE-ports, 3 SPA ports, running IOS XE and has SW
redundancy
> via VM.
>
> On Mon, Mar 22, 2010 at 7:30 PM, Rick Ernst <cnsp at shreddedmail.com>
wrote:
>
>> I'm having a hard (impossible) time locating performance and BGP
specs for
>> the ASR 1002-F.  Since it has a "not really an ESP" built-in, the
>> ESP5/10/20
>> specs aren't helping me a lot.  Other than it should have ~2.5Gbs
>> forwarding
>> (full-duplex?), I'can't find anything definitive on it.  References
keep
>> coming up with the ASR-1002 with the removable ESP.
>>
>> I'm looking at replacing our upstream routers (7206-VXR/G1) on GigE
links
>> with something that can better handle D/DoS attacks.  The original
thought
>> was to use a small 6500/Sup720.  Empirical testing shows that Netflow
>> (even
>> with the table size under control) really beats up on the SP CPU.
The
>> ASR-1002F seems like it should fit the bill, but I found something
(that
>> I've now lost) that mentioned 500K routes.
>>
>> I'm looking for a device that:
>>  - is a "lightbulb"; relatively inexpensive, single-upstream
>>  -  3 GigE ports
>>  - 1 Gbs full-duplex (2Gbs total) hardware forwarding
>>  - uRPF
>>  - Netflow
>>  - 1,000,000+ IPv4 BGP routes
>>  - IPv6 support
>>
>> As an additional comment on the Sup720/Netflow, CPU on the SP hit
~30%
>> with
>> only a couple hundred Mbs and roughly 50% TCAM utilization.
>>
>> Is the ASR-1002F what I'm looking for? Can anybody direct me to 1002F
(vs
>> modular 1002) specs?
>>
>> 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/
>>
>
>
>
> --
> Mounir Mohamed, CCIE No.19573(R&S, SP)
> Senior Network Engineer, Core Team
> NOOR Data Networks, SAE
> http://mounirmohamed.wordpress.com
> http://www.linkedin.com/in/mounirmohamed
>
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