[AusNOG] 7301 Broadband Aggregation?

[Matthew Moyle-Croft]

On 27/03/2012, at 4:11 PM, McDonald Richards wrote:

> We are going back a long time here, but in my experience the only ports worth using for ethernet on the G1 and G2 were the ones built onto the NPE themselves..It may have just come down to those being the only ones that support SFPs but I seem to recall something to do with the actual PCI bus being a lot slower than the interface used on the NPE to those ports.

Given the actual throughput of the 72/73 series for broadband aggregation I'd suggest that if you're starting to optimise or worry about this aspect then you may need to actually be considering a faster platform.

eg. ASR1k etc - especially if doing dual stack (IOS XE has better code for IPv6 now).

MMC


> 
> Macca
> 
> 
> From: Skeeve Stevens <skeeve+ausnog at eintellego.net>
> Date: Tue, 27 Mar 2012 16:36:08 +1100
> To: Graeme Allen <gallen at mytelecom.com.au>
> Cc: "ausnog at lists.ausnog.net" <ausnog at lists.ausnog.net>
> Subject: Re: [AusNOG] 7301 Broadband Aggregation?
> 
> According to: http://www.cisco.com/en/US/docs/routers/7200/configuration/7200_port_adapter_config_guidelines/3875In.html
> 
> "Do not calculate bandwidth points for an I/O controller if it is installed in the Cisco 7200 VXR router with an NPE-G1 or NPE-G2. With the NPE-G1 or NPE-G2, I/O controllers do not use bandwidth or bandwidth points."
> 
> Look at Table 1-2
> 
> ...Skeeve
> 
> Skeeve Stevens, CEO
> eintellego Pty Ltd
> skeeve at eintellego.net ; www.eintellego.net
> Phone: 1300 753 383 ; Fax: (+612) 8572 9954
> Cell +61 (0)414 753 383 ; skype://skeeve
> facebook.com/eintellego
> twitter.com/networkceoau ; www.linkedin.com/in/skeeve
> PO Box 7726, Baulkham Hills, NSW 1755 Australia
> 
> The Experts Who The Experts Call
> Juniper - Cisco – Brocade - IBM
> 
> 
> 
> On Tue, Mar 27, 2012 at 16:18, Graeme Allen <gallen at mytelecom.com.au> wrote:
>> The C7200-I/O-GE+E does burn the bandwidth points, so with that in, you can only have 1 more "high speed" card on the other bus....
>> 
>> 
>> On 27/03/12 16:07, shthead wrote:
>>> On 27/03/2012 1:00 PM, McDonald Richards wrote:
>>>> Just remember to try and use the GE ports on the NPE module instead
>>>> of the ones on the PCI bus if you care about performance.
>>> On that note you can use the C7200-I/O-GE+E to get an extra gig port
>>> without using and B/W points on the PCI bus (its compatible with the
>>> G1, I'm not sure about the G2, but I can't see anything saying its
>>> not). It may work out cheaper than buying a PA-GE card as well.
>>> _______________________________________________
>>> 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
> 
> _______________________________________________ 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

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ausnog.net/pipermail/ausnog/attachments/20120327/307fd923/attachment.html>