From the course: MPLS Segment Routing

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Simple migration from LDP to Segment routing

Simple migration from LDP to Segment routing

From the course: MPLS Segment Routing

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Simple migration from LDP to Segment routing

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- [Instructor] In this lesson, we will walk through the steps to migrate from LDP to SR in a simple, controlled manner. Assumptions. LDP and SR are kept independent. Throughout the migration, there will be no interaction between LDP and SR control planes. Continuous connectivity. SR-enabled PEs maintain continuous SR connectivity, while LDP-enabled PEs maintain continuous LDP connectivity during the migration. Upgrade flexibility. All nodes in the network can be upgraded to support SR, and all services can also be transitioned to SR. Initial state. All nodes in the network are running LDP with no SR enabled. Step 1, upgrade all nodes to support SR. Upgrade all nodes to SR in no particular order. During this stage, the default preference for LDP label imposition remains, meaning LDP labels will still be used for forwarding. SR will be operational, but LDP will continue to handle label imposition for MPLS traffic as the default protocol. Step 2, configure PEs to prefer SR labeling…

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