Ciena Corporation

Jayesh Jayachandra Kumar

Gerald Smallegange

Anurag Prakash

Chaitanya Varma Guntumadugu

Samson Punnammoottil Ninan

A Border Gateway Protocol (BGP) router is configured to obtain a plurality of prefix-lists one or more of (i) in local Outbound Route Filtering (ORF) and (ii) in ORF from upstream BGP routers, automatically apply logical set operations on the plurality of prefix-lists to determine an aggregated ORF for a downstream BGP router, and propagate the aggregated ORF to the downstream BGP router which uses the aggregated ORF for BGP advertisements. This can include auto generation of sequence numbers for the plurality of prefix-lists in the aggregated ORF, such that the downstream BGP router uses the sequence numbers for precedence in the advertisements. The prefix-lists can include one or more PERMIT lists, DENY lists, and a combination of PERMIT and DENY lists, with the logical set operations including union with the PERMIT lists, intersection with the DENY lists, and a combination of union, intersection, and set differences with the combination of PERMIT and DENY lists.

Growing community of inventors

Ottawa, Canada

Jayesh Jayachandra Kumar