公开(公告)号：US11283711B2

公开(公告)日：2022-03-22

申请号：US16316611

申请日：2016-07-25

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Anupkumar T

IPC分类号： G06F15/173 ,  H04L45/64 ,  H04L45/023 ,  H04L45/02 ,  H04L45/00 ,  H04L45/74 ,  H04L45/745 ,  H04L29/06

摘要： A method is implemented by a network device to optimize the operation of a virtual private network (VPN) route refresh for border gateway protocol (BGP). The method reduces a span of VPN databases to be traversed to perform a route target constraint (RTC) update at the network device. The method includes receiving an RTC add or delete from a BGP peer, looking up each route target (RT) in a route target-route distinguisher (RT-RD) map to get a set of route distinguishers (RDs), and generating a VPN update for each VPN Address Family (AF) and each RD in the RD cache and sending the VPN update to a respective BGP peer.

公开(公告)号：US20190238457A1

公开(公告)日：2019-08-01

申请号：US16316611

申请日：2016-07-25

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Anupkumar T

IPC分类号： H04L12/715 ,  H04L12/747 ,  H04L12/741 ,  H04L12/751 ,  H04L12/757 ,  H04L29/06

CPC分类号： H04L45/64 ,  H04L45/023 ,  H04L45/025 ,  H04L45/04 ,  H04L45/54 ,  H04L45/742 ,  H04L45/745 ,  H04L63/0272

摘要： A method is implemented by a network device to optimize the operation of a virtual private network (VPN) route refresh for border gateway protocol (BGP). The method reduces a span of VPN databases to be traversed to perform a route target constraint (RTC) update at the network device. The method includes receiving an RTC add or delete from a BGP peer, looking up each route target (RT) in a route target-route distinguisher (RT-RD) map to get a set of route distinguishers (RDs), and generating a VPN update for each VPN Address Family (AF) and each RD in the RD cache and sending the VPN update to a respective BGP peer.