[j-nsp] Junos OSPF Inter-Area Routes !

[Alex Arseniev]

Active Backbone Detection
http://www.juniper.net/techpubs/en_US/junos9.6/information-products/topic-collections/config-guide-routing/routing-configuring-ospf-areas.html
Active backbone detection enables transit through an area border router with 
no active backbone connection.
HTH
Rgds
Alex

----- Original Message ----- 
From: "vaibhava varma" <svaibhava at gmail.com>
To: <juniper-nsp at puck.nether.net>
Sent: Friday, December 09, 2011 8:43 AM
Subject: [j-nsp] Junos OSPF Inter-Area Routes !


> Dear All
>
> Recently I was working on a scenario in OSPF for checking  the use of
> Backbone Area 0 for Inter-Area communication and I was surprised to
> see that 2 Non-Backbone areas were able to exchange inter-area routes
> without any Area 0 configured. Well the same thing did not work in
> Cisco which was the expected behavior per documentations.
>
> Topology was simple
>
> R1-Area3-R2-Area2-R1
>
> Can anyone help to understand the above behavior in Junos.
> -- 
> Regards
> Varma
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