[c-nsp] maximum-paths loadbalancing with different AS

[Rodney Dunn]

You need code that supports eBGP multipath.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_configuration_guide_chapter09186a00800ca571.html#4589

Currently that only works for two routes from the
same neighboring AS.  I think there is a ddts out
there to allow this when the route is from two
different neighboring AS's which is what you have.

It is:

CSCed13286
Externally found moderate defect: New (N)
Need to be able to ignore AS_PATH check for multipath in non transit

I'll add a Release-note to it.
 
Rodney

On Tue, Dec 28, 2004 at 06:55:29PM +0100, Nicolaj Ottsen wrote:
> Hi, 
> 
> I have a setup where a cisco 7200 (12.2(27)) is reciving 4 default
> routes from 4 links connected to 2 different AS numbers.
> 
>     L1(AS1)	    L2(AS1)	    L3(AS2)	   L4(AS2)
> 	|		|		|		|
> 	|		|		|		|
> 	|		|		|		|
> 	|		|		|		|
> 	---------------R1(AS3) -------------
> 
> R1 has been configured with maximum-paths 4, but only 1 default route
> has been installed in the routing table, it seems like the lower AS is
> being prefered. 
> 
> Is there a way to loadbalance using all 4 links and both AS's ? 
> 
> Nicolaj
> 
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