BFD draft-adubey-bfd-service-redundancy-02

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Presentation transcript:

BFD draft-adubey-bfd-service-redundancy-02 Ankur Dubey Sami Boutros VMware Reshad Rahman Cisco IETF 105, July 2019 Montreal

Multiple Service Redundancy Use Case Controller Service Provisioning Nodes provide Multiple L2/L3 and/or L4/L7 services providing single Active redundancy Some services shared between Node1 and Node2, some between Node2 and Node 3, some between Node1 and Node 3 Every service has unique ID provisioned by Network Controller Some services in revertive failover mode, some in non-revertive mode In failover scenario, revertive services revert to the primary node when it recovers. The node taking over as Active for non-revertive services needs to indicate the same that to the peer Node. Node1 Node2 Node3 BFD BFD BFD

Proposed Solution A new diag code to indicate to the peer node that this node was up when the peer node failed. Optional, bitmap created by network controller will be used in the payload of the BFD packets to indicate which non-revertive service(s) the node maintains an Active status for.

Next steps Seeking comments? Thank you