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Application Scenarios for Routing Policies[3]

Latest reply: Sep 28, 2018 18:28:31 446 1 0 0 0

Routing Policy Application in Inter-AS VPN Option C

On the network shown in the figure below, CE1 and CE2 communicate with each other through inter-AS VPN Option C.

To establish an inter-AS label switched path (LSP) between PE1 and PE2, route-policies need to be configured for autonomous system boundary routers (ASBRs).
  • When an ASBR advertises the routes received from a PE in the same AS to the peer ASBR, the ASBR allocates MPLS labels to the routes using a route-policy.
  • When an ASBR advertises labeled IPv4 routes to a PE in the same AS, the ASBR reallocates MPLS labels to the routes using another route-policy.

In addition, to control route transmission between different VPN instances on a PE, configure a route-policy for the PE and configure the route-policy as an import or export policy for the VPN instances.

  • x
  • convention:

Moderator Author Created Sep 28, 2018 18:28:31

Can share the configuration as well
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  • x
  • convention:


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