Nokia 7705 SAR-W Series User Manual

MPLS Guide MPLS and RSVP-TE
3HE 18686 AAAB TQZZA © 2022 Nokia.
Use subject to Terms available at: www.nokia.com
97
Figure 12 Multi-plane TE with Node Protection
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.
(Red Plane)
(Blue Plane)
(Blue Plane)
P1
PE1
P1
P5
P2
P6
PE3
PE4
P8
P4
P7
P3
PE2
Service 1
Service 2
Node
SID 10
Node
SID 20
Node
SID 30
Node
SID 40
Anycast SID=200
Node SID=40
SVC-LBL (Y)
PKT
Anycast SID=100
Node SID=30
SVC-LBL (X)
PKT
SR-TE LSP to Node SID=30:: Path
with loose hop anycast SID=100
SR-TE LSP to Node SID=40:: Path
with loose hop anycast SID=200
Anycast SID 200 (Blue Plane)
Anycast SID 100 (Red Plane)
Legend:
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Nokia 7705 SAR-W Series Specifications

General

Brand	Nokia
Model	7705 SAR-W Series
Category	Network Router
Language	English