Avoiding traffic starvation on non-TE RSVP tunnels using FRR in MPLS
Publication Date: 2018-Aug-22
The IP.com Prior Art Database
The present disclosure relates to systems and methods for avoiding traffic starvation on non-Traffic Engineered (TE) Resource Reservation Protocol (RSVP) tunnels using Fast Reroute (FRR) in Multiprotocol Label Switching (MPLS). The systems and methods address the problem of congestion, in real time, without service degradation on any other services. Also, the systems and methods utilize already deployed devices/topology without any major protocol or configuration change. The systems and methods propose to utilize an "unutilized" Facility Bypass Tunnel from RFC 4090, to avoid starvation on the primary Path. The systems and methods include a data-plane switchover of the non-TE tunnel in the event of TE interface utilization going beyond a specified threshold value.