Quick Series 27 : MPLS-Traffic-Engineering BGP-IGP – JNPR Usage
Dec 07
Juniper, service-provider mpls lsp No Comments
Hi,
The post gives a perspective on usage of Mpls traffic-Engineering bgp-igp. We all know Juniper has Different set of tables.
- inet.0 – igp populated
- inet.3 (ldp/rsvp) populated (used by BGP for Routing-Lookups)
Below is the Topology
https://www.juniper.net/documentation/en_US/junos13.3/topics/usage-guidelines/mpls-configuring-traffic-engineering-for-lsps.html
“If you configure the bgp-igp or bgp-igp-both-ribs options for the traffic-engineering statement, high-priority LSPs can supersede IGP routes in the inet.0 routing table. IGP routes might no longer be redistributed since they are no longer the active routes.”
Lets look at the routing-table without the command, a general output with both the ribs.
Lets add “set protocols mpls traffic-engineering bgp-igp”
The entire inet.3 has been removed and all the mpls routes got into inet.0. There is one major problem with this though, will write up in next-post
Regards
Rakesh M