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Configuring LDP Extensions for Inter-Area LSPs
Pre-configuration Tasks
Before configuring LDP extensions for inter-area LSPs, complete the following tasks:
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Configuring a local LDP session according to Configuring Basic Functions of MPLS LDP
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Configuring a policy for summarizing routes according to Huawei AR Series IOT Gateway Configuration Guide - IP Routing
LDP extensions for inter-area LSPs enable LDP to search for routes according to the longest match principle and use summarized routes to establish LDP LSPs spanning multiple IGP areas.