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Cisco Bug: CSCtd25898 - LDP GR: Unlabelled prefixes over 1-hop tunnel during RP FO

Last Modified

May 15, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases


Description (partial)

Symptom: When there is a tageted LDP session between two CRSs with GR and there is a one-hop TE tunnel with autoroute announce between them, during RP FO some prefixes may be temporary programmed as unlabelled, causing VPN traffic drop.

Conditions: The issue is triggered in a parallel adjs scenario when two XR nodes have a 1-hop tunnel and LDP running on both the tunnel and physical interfaces.
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