Refer to the exhibit. What relationship exists between Router 1 and Router 2?
A PCE centrally collects network topology information to compute SR-TE paths. IS-IS distribute link-state exports IS-IS nodes, links, and prefixes to BGP-LS, and the BGP-LS neighbor to the PCE address supplies that topology to the PCE. Router 2 is therefore a topology-information source for Router 1.
distribute link-state
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