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Cisco Bug: CSCur26660 - MPLS-TE tunnels are down due to routing loop with loose hop path option

Last Modified

Aug 07, 2018

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases


Description (partial)

TE tunnel never comes up due to routing loop. Depending on the midpoint implementation (the node which notices the routing loop)the head-end may receive a PATH ERR or be in RSVP signalling proceeding for the tunnel


The tunnel is using a loose hop. The shortest path between the loose hop and destination is going through one of the tunnel's hops between the head-end and the loose hop (routing loop)
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