Abstract
Undesired side effects of too much or too little bandwidth reservation in a bypass label switched path (LSP) can be eliminated or at least reduced by having the point of local repair (PLR) compute multiple bypass LSPs to protect a resource (node and/or link). The bypass LSPs do not have any bandwidth reserved. In the event of a failure on the protected LSP, the PLR uses all the bypass LSPs, as opposed to a single bypass LSP, as backup next hops of the protected LSPs. More specifically, when the protected LSP fails, the data plane in the PLR views each of the multiple bypass LSPs as being equally eligible and performs Equal Cost Multipath (ECMP) among them.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Recommended Citation
Ramachandran, Chandrasekar; Rajagopalan, Balaji; Boyapati, Suresh Kumar; Rajendran, Kamalesh; and Singh, Nischal, "RSVP ECMP Bypass LSPs", Technical Disclosure Commons, (February 15, 2024)
https://www.tdcommons.org/dpubs_series/6689