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Extensions to PCEP for Backup Ingress and Egress of LSP

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. -03 just posted, looks solid

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Extensions to PCEP for Backup Ingress and Egress of LSP

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  1. 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)

  2. draft-chen-pce-compute-backup-ingress • -03 just posted, looks solid • One major change needs review: External Source Node Representation • Option 1: New External Source Node (ESN) Object ESN Object Body (IPv4) External source node IPv4 address (4 bytes) • Option 2: Existing END-POINTS with new type Type (11) External source node IPv4 address (4 bytes)

  3. draft-chen-pce-compute-backup-egress • -03 just posted, looks solid • One major change needs review: External Destination Node (EDN) Representation • Option 1: EDN Object EDN Object Body (IPv4) • Option 2: END-POINTS END-POINTS Object Body Encode of External Destination Nodes (2) External Destination Nodes Type (13) Egress IPv4 address Egress IPv4 address External Destination IPv4 address External Destination IPv4 address Egress IPv4 address Egress IPv4 address External Destination IPv4 address External Destination IPv4 address …… …… Egress IPv4 address Egress IPv4 address External Destination IPv4 address External Destination IPv4 address

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

  5. P2MP LSP Ingress & Egress Local Protection Multicast Receiver Existing solution:double ingress and every egress Create two global P2MP LSP from each ingress to egresses, carrying data at same time BFD P2MP PE1 Multicast Source Data CE1 CE1 (S,G)Join PE2 PE5 CE3 Backup Egress Node CE4 PE6 PE3 Data CE2 External Source Node Backup Ingress Node PE4 External Destination Node New solution: One P2MP LSP for all: Every part locally protected Big resource saving, Faster failure recovery P2MP LSP Backup LSP

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