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Multi Segment PW - Controlled Path Discovery SU-PE TU-PE S-PE:1 S-PE:4 S-PE:2 S-PE:3 TU-PE makes primary / backup path choice Uses LDP path trace to ensure disjoint paths |
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Multi Segment PW - Controlled Path Discovery SU-PE TU-PE S-PE:1 S-PE:4 S-PE:2 S-PE:3 TU-PE makes primary / backup path choice Uses LDP path trace to ensure disjoint paths |