Extensions to PCEP for Backup Ingress and Egress

Extensions to PCEP for Backup Ingress and Egress of LSP draft-chen-pce-compute-backup-ingress draft-chen-pce-compute-backup-egress Huaimo Chen (huaimochen@huawei. com) Cyril Margaria (cyril. margaria@nsn. com)

draft-chen-pce-compute-backup-ingress Ø -03 just posted, looks solid Ø One major change needs review: External Source Node Representation u. Option 1: New External Source Node (ESN) Object ESN Object Body (IPv 4) External source node IPv 4 address (4 bytes) u. Option 2: Existing END-POINTS with new type Type (11) External source node IPv 4 address (4 bytes)

draft-chen-pce-compute-backup-egress Ø -03 just posted, looks solid Ø One major change needs review: External Destination Node (EDN) Representation u. Option 1: EDN Object u. Option 2: END-POINTS EDN Object Body (IPv 4) END-POINTS Object Body Encode of External Destination Nodes (2) Egress IPv 4 address External Destination Nodes Type (13) Egress IPv 4 address External Destination IPv 4 address …… …… Egress IPv 4 address External Destination IPv 4 address

Next Step • Welcome comments • Request to make it into a working group document

P 2 MP LSP Ingress & Egress Local Protection Existing solution: double ingress and every egress Create two global P 2 MP LSP from each ingress to egresses, carrying data at same time Multicast Receiver BFD Multicast Source CE 3 CE 4 P 2 MP PE 1 Data PE 2 PE 5 PE 6 (S, G)Join Backup Egress Node PE 3 Data External Source Node Backup Ingress Node CE 1 CE 2 PE 4 External Destination Node New solution: One P 2 MP LSP for all: Every part locally protected P 2 MP LSP Big resource saving, Faster failure recovery Backup LSP