Admin Group Support On Facility Bypass Backup Lsps; Figure 9 Frr Node-Protection Example - Nokia 7705 SAR-W Series Manual

Service aggregation router, mpls

Table of Contents

MPLS and RSVP-TE

FRR Node-Protection Example

P1 protects P2

P1 protects the link to P2

LSP_1 had requested node protection, but due to lack of an available path it could

only obtain link protection. Therefore, every 60 s, the PLR for LSP_1 will search for

a new path that might be able to provide node protection. When P4 is back online

and such a path is available, a new bypass tunnel will be signaled and LSP_1 will be

associated with this new bypass tunnel.

3.7.5 Admin Group Support on Facility Bypass Backup

Admin group support on facility bypass backup LSPs provides for the inclusion of the

LSP primary path admin-group constraints in the computation of an FRR facility

bypass backup LSP to protect the primary LSP path. Admin group constraints are

honored by all nodes in the LSP path both for primary and FRR backup LSPs.

This feature is supported on primary paths of an RSVP point-to-point LSP in both

intra-area and inter-area TE where applicable.

This feature is not supported on one-to-one detour backup LSPs.

Use subject to Terms available at: www.nokia.com

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