US 12,463,891 B2
Methods and systems to prioritize border gate protocol (BGP) route target (RT) membership network layer reachability information (NLRI) handling
M Praveen Kumar, Bangalore (IN); and Tulasi Rami Reddy N, Bangalore (IN)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Santa Clara, CA (US)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Mar. 27, 2024, as Appl. No. 18/618,339.
Prior Publication US 2025/0310236 A1, Oct. 2, 2025
Int. Cl. H04L 45/02 (2022.01); H04L 45/028 (2022.01); H04L 45/42 (2022.01); H04L 45/586 (2022.01)
CPC H04L 45/04 (2013.01) [H04L 45/028 (2013.01); H04L 45/42 (2013.01); H04L 45/586 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method to prioritize route target membership handling in a network, comprising:
upon receiving a first border gateway protocol (BGP) update message with a route target (RT) membership Network Layer Reachability Information (NLRI) that indicates a route target (RT) membership, determining whether to prioritize the first BGP update message based on existence of a flag indication within the RT membership NLRI;
responsive to the existence of the flag indication and the flag indication being set in the RT membership NLRI, processing the RT membership NLRI to advertise a route matching the RT membership indicated in the first BGP update message without waiting on one or more periodic update timers for route update and advertisement;
responsive to the existence of the flag indication and the flag indication not being set but the RT membership NLRI including a combination of type and subtype that indicates an ES-import RT, processing the RT membership NLRI to advertise the route matching the RT membership indicated in the first BGP update message without waiting on the one or more periodic update timers; and
otherwise processing the RT membership NLRI to advertise upon expiration of the one or more periodic update timers.