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MPLS Guide
Multi-plane TE with Node Protection
Figure 12
SR-TE LSP to Node SID=30:: Path
with loose hop anycast SID=100
Anycast SID=100
Node SID=30
SVC-LBL (X)
PKT
Service 1
Service 2
Anycast SID=200
Node SID=40
SVC-LBL (Y)
PKT
SR-TE LSP to Node SID=40:: Path
with loose hop anycast SID=200
Legend:
Anycast SID 100 (Red Plane)
Anycast SID 200 (Blue Plane)
The user then configures an SR-TE LSP on an LER to a destination and adds to its
path a loose hop matching the anycast loopback address. The SR-TE LSP to any
destination will hop over the closest of the LSRs owning the anycast SID because
the resolution of the node SID for that anycast loopback address uses the closest
router. If that router fails, the resolution is updated to the next closest router owning
the anycast SID without changing the label stack of the SR-TE LSP.
3HE 18686 AAAB TQZZA
Node
SID 10
PE1
PE2
Node
SID 20
© 2022 Nokia.
Use subject to Terms available at: www.nokia.com
P5
(Red Plane)
P1
P1
P2
P3
P4
(Blue Plane)
(Blue Plane)
P7
MPLS and RSVP-TE
P6
Node
SID 30
PE3
PE4
Node
SID 40
P8
27867
97
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