[c-nsp] L3 Switch as a BGP Gateway

[Murphy, Jay, DOH]

How about when you stack them as a logical switch. Couldn't one leverage the memory and processing of the stacking?

~Jay Murphy 
Sr. IP Network Specialist
NM State Government
 
IT Services Division
PSB – IP Network Management Center
Santa Fé, New México 87505 
"We move the information that moves your world." 
“Engineering is about finding the sweet spot between what's solvable and what isn't."
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-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Jay Hennigan
Sent: Monday, June 27, 2011 1:11 PM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] L3 Switch as a BGP Gateway

On 6/27/11 11:59 AM, Jason Greenberg wrote:
> Can someone advise me as to why a 3750 L3 Switch (Metro Model) wouldn't outperform a 7300 series router as a multi-homed BGP gateway?  ISRs and Enterprise class routers are still quite a bit more expensive than the L3 Switches, but I'm starting to not understand why.   I understand that L3 switches are less feature rich on the routing end, but suppose that our ASAs are doing most of the complicated filtering.    I know it doesn't sound "right" to have a 3750G used in this manner, but I am having a hard time finding any real reason why not to do it.

The memory and number of routes are far too small to use these as a
border router.  Generally adequate for iBGP to inject customer routes
into your network but way too little for an Internet-facing border.

--
Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
Impulse Internet Service  -  http://www.impulse.net/
Your local telephone and internet company - 805 884-6323 - WB6RDV
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