MVPN / EVPN Composite Tunnel draft-zzhang-bess-mvpn-evpn-composite-tunnel-00 Jeffrey Zhang (Juniper) Jorge Rabadan (Nokia) Ali Sajassi (Cisco) IETF104, Mar 2019 Prague

Generalizing the concept of the RFC8317 Composite Tunnels Used in EVPN E-Tree RFC8317 Composite Tunnel Tunnel Type advertised by the Root PE in the EVPN IMET routes, that indicates P2MP in Tx and IR in Rx Unicast mLDP P2MP IMET route Orig-IP=R2 T=130 (mLDP-IR) IR Label=L2 T-ID=R2, LSP-ID 2 Goal of this draft Extend composite tunnels to: MVPN I-PMSI A-D routes MP2MP EVPN Assisted Replication Advertising PEs can also use IR in Tx Describe Composite Tunnel Use-cases Orig-IP=R1 T=130 (mLDP-IR) IR Label=L1 T-ID=R1, LSP-ID 1 R1 R2 P P EVPN Orig-IP=L3 T=6 IR L3 L4 L5

Composite Tunnel Use-Cases BIER introduction in EVPN networks Orig-IP=R2 T=0x8B (BIER-IR) IR Label=L2 T-ID=SD/BFR-ID/P Orig-IP=R1 T=0x8B (BIER-IR) IR Label=L1 T-ID=SD/BFR-ID/P R1 R2 Use-case 1 – Composite BIER-IR Tunnels Used along with [EVPN-BIER] and [BIER-PHP] to introduce BIER in EVPN networks with non-capable BIER PEs R1 and R2 use BIER Leafs use IR BIER domain PHP PHP IR/unicast Orig-IP=L3 T=0x8B (BIER-IR) IR Label=L3 T-ID=SD/BFR-ID/P L3 L4 L5 BIER Orig-IP=L4 T=0x8B (BIER-IR) IR Label=L4 T-ID=SD/BFR-ID/P Orig-IP=L5 T=0x8B (BIER-IR) IR Label=L5 T-ID=SD/BFR-ID/P IMET route

Composite Tunnel Use-Cases BIER introduction in EVPN networks Orig-IP=AR-IP1 Flags=AR-Rep T=0x0A IR Label=L1 T-ID=AR-IP1 Orig-IP=AR-IP2 Flags=AR-Rep T=0x0A IR Label=L2 T-ID=AR-IP2 Use-case 2 – Composite BIER-IR Tunnels with AR Used along with [EVPN-AR], [EVPN-BIER] and [BIER-PHP] to introduce BIER in EVPN networks with non-capable BIER PEs, with a single copy from Leafs R1 and R2 use BIER Leafs use AR to AR-R, fall back to IR if no AR-Rs are left AR-R1 AR-R2 Orig-IP=IR-IP1 T=0x0B (BIER) T-ID=SD/BFR-ID/P Orig-IP=IR-IP2 T=0x0B (BIER) T-ID=SD/BFR-ID/P BIER domain PHP PHP Unicast IP DA= AR-IP, BM traffic Orig-IP=IR-IP5 Flags=AR-Leaf T=0x8B (BIER-IR) IR Label=L5 T-ID=SD/BFR-ID/P Orig-IP=IR-IP3 Flags=AR-Leaf T=0x8B (BIER-IR) IR Label=L3 T-ID=SD/BFR-ID/P AR-LEAF3 AR-LEAF4 AR-LEAF5 BIER IMET route Orig-IP=IR-IP4 Flags=AR-Leaf T=0x8B (BIER-IR) IR Label=L4 T-ID=SD/BFR-ID/P

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