Basic YANG Model for Steering Client Services To Server Tunnels draft-bryskin-teas-service-tunnel-steering-model-02 Igor Bryskin (Huawei Technologies)

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Basic YANG Model for Steering Client Services To Server Tunnels draft-bryskin-teas-service-tunnel-steering-model-02 Igor Bryskin (Huawei Technologies) Xufeng Liu (Volta Networks) Vishnu Pavan Beeram (Juniper Networks) Tarek Saad (Juniper Networks)

Rationale: No good universal way to bind tunnels to their clients/services Service-to-tunnel mapping is service specific Tunnel utilization efficiency and scalability issues Service to tunnel re-mapping difficulties

Tunnel pool Identified by network unique ID Comprised of tunnels with similar properties (e.g. fast tunnels) Managed by service orchestrator via configuring tunnel types, IDs and references to appropriate tunnel data stores for pool tunnel components. Services are mapped to tunnel pools via pool IDs Provides via state information services that are currently mapped onto the tunnel pool

Advantages of service to tunnel pool mapping approach Scalability and efficiency of network resource utilization Automation, transparency and elasticity Service to tunnel mapping is decoupled from service definition, tunnels could be shared among multiple services of different types

Progress since the previous version Removed tunnel/service redundant attributes accessible via respective tunnel/service data stores (based on discussions during and after IETF103) Editorial changes

Next steps Soliciting more discussions, comments and contributions Should we consider steering services not just to e2e tunnels, but also to abstract topologies (e.g. SF- aware topologies), network slices, etc.?