A service provider wants to start using all of their LSPs for internal traffic and not just their MPLS VPNs. Any solution must ensure that existing VPNs and routing policies will continue to…

The correct answer is D. mpls-forwarding. When you use the bgp-igp-both-ribs statement, the routes from the inet.3 table get copied into the inet.0 table. The copied routes are LDP-signaled or RSVP-signaled, and are likely to have a lower preference than other routes in inet.0. Routes with a lower preference are more…

MPLS

Question

A service provider wants to start using all of their LSPs for internal traffic and not just their MPLS VPNs. Any solution must ensure that existing VPNs and routing policies will continue to function properly. Which MPLS traffic engineering parameter would accomplish this task?

Options

Abgp
Bbgp-igp-both-ribs
Cbgp-igp
Dmpls-forwarding

How the community answered

(19 responses)

B
11% (2)
C
5% (1)
D
84% (16)

Explanation

When you use the bgp-igp-both-ribs statement, the routes from the inet.3 table get copied into the inet.0 table. The copied routes are LDP-signaled or RSVP-signaled, and are likely to have a lower preference than other routes in inet.0. Routes with a lower preference are more likely to be chosen as the active routes. This can be a problem because routing policies only act upon active routes. To prevent this problem, use the mpls-forwarding option instead. traffic-engineering-for-lsps.html mpls-forwarding-On both BGP and IGP destinations. Use ingress routes for forwarding only, not

Topics

#mpls-forwarding#traffic engineering#LSP#MPLS forwarding table

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