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Article | REF: TE7592 V1

IP Fast ReRoute (IP FRR)

Author: Bruno DECRAENE

Publication date: February 10, 2019

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5. Topology Independent Loop Free Alternate (TI-LFA)

5.1 Solution

The TI-LFA (Topology Independent Loop Free Alternate) solution is described in the IETF draft [TI-LFA]. TI-LFA is a solution local to the PLR router, but it uses and therefore requires the availability of Segment Routing in the [TE 7 594] network.

Segment Routing is a source routing solution that allows a source to indicate, in the packet header, the path to be taken by the packet. This path is indicated in the form of a list of "segments". Each segment can refer...

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Topology Independent Loop Free Alternate (TI-LFA)
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