US 11,888,727 B2
Extending BGP protection for SR path ingress protection
Huaimo Chen, Bolton, MA (US)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jul. 20, 2021, as Appl. No. 17/380,673.
Application 17/380,673 is a continuation of application No. PCT/US2020/036117, filed on Jun. 4, 2020.
Claims priority of provisional application 62/857,684, filed on Jun. 5, 2019.
Prior Publication US 2021/0352005 A1, Nov. 11, 2021
Int. Cl. H04L 45/00 (2022.01); H04L 12/46 (2006.01); H04L 45/745 (2022.01)
CPC H04L 45/22 (2013.01) [H04L 12/4633 (2013.01); H04L 45/745 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A border gateway protocol (BGP) controller, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to receive instructions from the memory which, when executed, cause the BGP controller to:
receive a path computation request;
calculate a first path from a first ingress node to an egress node;
calculate a second path from a second ingress node to the egress node;
transmit a first message using border gateway protocol (BGP), the first message comprising the first path to the first ingress node; and
transmit a second message using BGP, the second message comprising the second path and an ingress protection indicator to the second ingress node.