[AusNOG] back of envelope sizing calculations
Matthew Moyle-Croft
mmc at internode.com.au
Thu Mar 5 16:01:29 EST 2009
I was thinking of the 7201 which has 4 GE but indeed NPE-G2s are 3xGE.
MMC
On 05/03/2009, at 3:27 PM, Skeeve Stevens wrote:
> Also, you probably mean extra FE (0/2)
>
>
> G1:
> interface GigabitEthernet0/1
> interface GigabitEthernet0/2
> interface GigabitEthernet0/3
>
> G2:
> interface GigabitEthernet0/1
> interface FastEthernet0/2
> interface GigabitEthernet0/2
> interface GigabitEthernet0/3
>
> Which you will note is inserted between the 1st and 2nd GigE for
> some drug induced reason.
>
> ...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?
>
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> From: ausnog-bounces at lists.ausnog.net [mailto:ausnog-bounces at lists.ausnog.net
> ] On Behalf Of Matthew Moyle-Croft
> Sent: Thursday, 5 March 2009 3:26 PM
> To: ausnog at ausnog.net
> Subject: Re: [AusNOG] back of envelope sizing calculations
>
> For "much faster VPN" read "much faster CPU".
>
> Trying to think about too many things at once.
>
> MMC
>
> On 05/03/2009, at 2:50 PM, Matthew Moyle-Croft wrote:
>
>
> 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.
>
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> --
> 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
>
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> --
> 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
>
--
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
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