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LSP Configuration @ Core Routers Level

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  • 1.  LSP Configuration @ Core Routers Level

    Posted 02-21-2018 09:06

    Hello,

     

    Is it feasible to configure LSPs @ Core Routers levels (P Routers) ?

    In which case we have to deploy this solution ?

    What's the benifits ?

     

    Thank you.

     

    Best Regards.



  • 2.  RE: LSP Configuration @ Core Routers Level

     
    Posted 02-21-2018 09:53

    LDP over RSVP tunnel does this work .

     

    You can run RSVP LSP's between P routers and LDP will be run between PE and P routers and tunneled over RSVP .

     

    Please refer below link for detailed explanation:

     

    https://www.juniper.net/documentation/en_US/release-independent/nce/topics/example/vpn-ldp-over-rsvp.html

     

     

    Please mark my answer as accepted solution if the query is answered



  • 3.  RE: LSP Configuration @ Core Routers Level
    Best Answer

    Posted 02-21-2018 10:05

    Hello,

    Apart from LDP-over-RSVP tunneling, there is a few more use cases where P routers can be headends/tailends for RSVP LSP:

    1/ hierarchical RSVP LSP a.k.a. OSPF forwarding adjacencies

    https://www.juniper.net/documentation/en_US/junos/topics/usage-guidelines/mpls-configuring-a-hierarchy-of-rsvp-lsps.html

    2/ LFA with RSVP LSP as backup paths

    https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/ospf-rvsp-lsp-backup-paths-configuring.html

    3/ TI-FRR a.k.a. LFA with dynamic RSVP LSP a.k.a. LDP link protection

    https://www.juniper.net/documentation/en_US/junos/topics/concept/ldp-link-protection-overview.html

    HTH

    Thx
    Alex