[c-nsp] BGP Architecture Question

[Raymond Macharia]

To achieve this you may have to add another router between the PIX firewall
and the switch. This router will be the gateway for your LAN and on this
router you add two default gateways (your two routers with the T1
connections). Then you need to enable IP CEF on the same router.
This will now load balance the out bound traffic automatically.

To use your schematic you will have something like this:
                  
        T1             T1
         \             /
          \           /
         ROUTER      ROUTER
               SWITCH   
                 |
               ROUTER (with IP CEF enabled 
		     |
		PIX FIREWALL
		     | 	
		    LAN


Raymond Macharia



-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Christopher
Martinsen
Sent: Wednesday, November 17, 2004 2:47 AM
To: cisco-nsp
Subject: [c-nsp] BGP Architecture Question

I am going to be setting up BGP for my company.

I have secured two T1 circuits, each from different ISP's.
I have secured an AS number for my organization.
I have secured a full class C address space.

The question that I have is about architecture.

I will have each T1 going into a seperate router. I have
one Cisco 2621 and one Cisco 2621XM.

I believe that with BGP the incoming traffic will be somewhat
load balanced as well as connectivity for my organization will
be redundant should one of the circuit go down.

I want to know the best way to architect the LAN side of the 
connection. I will have:

	T1		T1
	\		/
	 \	       /
	 Router	     Router
	    \	     /
	      Switch 	
		|
	    PIX Firewall
	    
If I put a switch between the firewall and routers. How can I set the 
outbound traffic to be load balanced?

I'm not sure what options are available to me. I'm hoping 
that someone can provide me with some options and insights 
on the best way to architect this.

Thanks,

Chris

-- 
Christopher Martinsen		1620 SW Taylor, Suite 200
Network Systems Manager		Portland, OR 97205
Via Training			503.944.0957 ph

		   cmartinsen at viatraining.com

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