[j-nsp] multipath bgp in VRF

samuel.gay at bt.com samuel.gay at bt.com
Thu Jul 3 06:32:24 EDT 2008


Hi David,

Can you send us all the configuration that you have configured to do multipath please?

It will help us to understand what is the problem.

Regards,
Samuel

-----Message d'origine-----
De : juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-bounces at puck.nether.net] De la part de david.roy at orange-ftgroup.com
Envoyé : jeudi 3 juillet 2008 11:00
À : juniper-nsp at puck.nether.net
Objet : [j-nsp] multipath bgp in VRF


Dear all,
 
We have a VRF with the multipath statement configured (in
routing-options) : 
 
By default the protocol-independent load balancing is applied to VPN routes that are equal until the router identifier with regard to route selection. 
 
Router identifier = Router ID field or Originator ID field if present. 
 
So I understand that equal routes are installed as a MULTIPATH entry in the forwarding table. 
 
In my example  : default route is received 4 times. I don't understand why there is no multipath route created and only one route is installed ? 
 
Router A < Router B
Router R1 < Router R2
 
show route 0.0.0.0/0 exact 
 
* Entry 1 Update Source : Router A
    Protocol Next Hop = @IP1  Metric 70
    Router ID = Router A
    Originator ID = Router R1
 Entry 2 Update Source : Router B
    Protocol Next Hop = @IP1  Metric 70
    Router ID = Router B
    Originator ID = Router R1
    Inactive Reason : Update source
 Entry 3 Update Source : Router A
    Protocol Next Hop = @IP2  Metric 70
    Router ID = Router A
    Originator ID = Router R2
    Inactive Reason : Router ID
 Entry 4 Update Source : Router B
    Protocol Next Hop = @IP2  Metric 70
    Router ID = Router B
    Originator ID = Router R2
    Inactive Reason : Router ID
 
 
 
 


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