[AusNOG] back of envelope sizing calculations

[Matthew Moyle-Croft]

Skeeve's recommendation is a good one:

7206VXR-NPE-G1s are the swiss army knife - well debugged, well  
understood, easy to obtain parts new and after market and will be  
supported for a long time to come and easily handle full BGP tables.

Even though they're no longer something we use in our core they are  
now excellent PE routers for terminating customer sessions or smaller  
LNSes etc.  We've got a frightening number still humming away and  
unlikely to be replaced.  Because of this Cisco are unlikely to EOL  
them for a LONG time to come (think of the ROI of that platform for  
them).

(We've got many dozens - I wouldn't want to try and count - it'd take  
too long).

The news G2s are nice as they have an extra GE port and much faster  
VPN BUT remember they need SFPs (SFP slots only for 2 of the ports).

MMC

On 05/03/2009, at 2:15 PM, Skeeve Stevens wrote:

> 7200-G1 - 512mb mtp (max throughput)
> 7200-G2 - 1024mb mtp
>
> They have 3 * GE
>
> 2851 with an extra GE would be pushing it with 112mb mtp
>
> 3825 - need two extra gig ports - 179 mtp
> 3845 - need two extra gig ports - 256 mtp
>
> A G1 which can either be in 7200 form or 7301 form.
>
> A G2 can be in 7204/6 form or 7201 form.
>
> HWIC-GE cards are more expensive that PA-GE's.
>
> My recommendation is a 7204VXR-NPE-G1 for cost, expandability (can  
> go to 4 GE - maybe 5 if the bandwidth points aren't counted from  
> slot 0 NPE), or a G2 if you can afford it.
>
>
> ...Skeeve
>
> --
> Skeeve Stevens, CEO/Technical Director
> eintellego Pty Ltd - The Networking Specialists
> skeeve at eintellego.net / www.eintellego.net
> Phone: 1300 753 383, Fax: (+612) 8572 9954
> Cell +61 (0)414 753 383 / skype://skeeve
> --
> NOC, NOC, who's there?
>
> Disclaimer: Limits of Liability and Disclaimer: This message is for  
> the named person's use only. It may contain sensitive and private  
> proprietary or legally privileged information. You must not,  
> directly or indirectly, use, disclose, distribute, print, or copy  
> any part of this message if you are not the intended recipient.  
> eintellego Pty Ltd and each legal entity in the Tefilah Pty Ltd  
> group of companies reserve the right to monitor all e-mail  
> communications through its networks.  Any views expressed in this  
> message are those of the individual sender, except where the message  
> states otherwise and the sender is authorised to state them to be  
> the views of any such entity. Any reference to costs, fee  
> quotations, contractual transactions and variations to contract  
> terms is subject to separate confirmation in writing signed by an  
> authorised representative of eintellego. Whilst all efforts are made  
> to safeguard inbound and outbound e-mails, we cannot guarantee that  
> attachments are virus-free or compatible with your systems and do  
> not accept any liability in respect of viruses or computer problems  
> experienced.
>
>
>> -----Original Message-----
>> From: ausnog-bounces at lists.ausnog.net [mailto:ausnog-
>> bounces at lists.ausnog.net] On Behalf Of Michael Bethune
>> Sent: Thursday, 5 March 2009 1:17 PM
>> To: ausnog at ausnog.net
>> Subject: [AusNOG] back of envelope sizing calculations
>>
>> Hiya,
>>
>> Just doing some back of the envelope calculations and I was wondering
>> if
>> anyone had some ball park ideas?
>>
>> What kind of non-end of life Cisco router model could
>> handle domestic and international BGP tables + 3 GigE interfaces
>> peaking at 100Mb/s or so (where the back traffic is a third of that).
>>
>> Thanks
>>
>> Michael.
>>
>> _______________________________________________
>> AusNOG mailing list
>> AusNOG at lists.ausnog.net
>> http://lists.ausnog.net/mailman/listinfo/ausnog
> _______________________________________________
> AusNOG mailing list
> AusNOG at lists.ausnog.net
> http://lists.ausnog.net/mailman/listinfo/ausnog

-- 
Matthew Moyle-Croft Internode/Agile Peering and Core Networks
Level 5, 162 Grenfell Street, Adelaide, SA 5000 Australia
Email: mmc at internode.com.au    Web: http://www.on.net
Direct: +61-8-8228-2909		     Mobile: +61-419-900-366
Reception: +61-8-8228-2999        Fax: +61-8-8235-6909

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20090305/ead26d8b/attachment.html>