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S-BFD Use Cases draft- ietf - bfd -seamless-use-case. Presenter Sam Aldrin. Do we need new BFD?. What are present challenges? What could New BFD solve? Questions. BFD challenges. Uni -directional continuity tests are sub-optimal (3.1) Slowness in continuity test completion (3.2)
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S-BFD Use Casesdraft-ietf-bfd-seamless-use-case Presenter Sam Aldrin
Do we need new BFD? • What are present challenges? • What could New BFD solve? • Questions
BFD challenges • Uni-directional continuity tests are sub-optimal (3.1) • Slowness in continuity test completion (3.2) • SDN and other network types (3.3, 3.4) • Resource efficiency & initiator flexibility (3.5, 3.8, 3.9) • Continuity tests to wider range of entities (3.6) • Fault isolation (3.7)
Use cases • Unidirectional static path verification • Verification Prior to traffic switching • Centralized TE • Virtual Network Functions Multiple BFD sessions (one per Net Func) Unidirectional BFD session A A B B C C B B A A C C D D
New BFD –> S-BFD What is S-BFD? • Seamless BFD • Segment BFD • Single BFD • Simple BFD • Some BFD • Sexy BFD