draftsdl 2 vpnevpnoverlay02 txt A Sajassi Cisco J

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draft-sd-l 2 vpn-evpn-overlay-02. txt A. Sajassi (Cisco), J. Drake (Juniper), N. Bitar (Verizon), A.

draft-sd-l 2 vpn-evpn-overlay-02. txt A. Sajassi (Cisco), J. Drake (Juniper), N. Bitar (Verizon), A. Issac (Bloomberg), J. Uttaro (ATT), W. Henderickx (ALU), Y. Rekhter (Juniper), R. Shekhar (Juniper), B. Schliesser, S. Boutros (Cisco), K. Patel (Cisco), S. Salam (Cisco), D. Rao (Cisco), S. Thoria (Cisco), L. Yong (Huawei) Copyright © 2004 Juniper Networks, Inc. IETF 88, November 2013 Vancouver Proprietary and Confidential www. juniper. net 1

Changes since Rev 01 § Added a new section on auto-derivation of RT &

Changes since Rev 01 § Added a new section on auto-derivation of RT & RD § Added a new section for scenarios with mixed of data-plane-learning NVEs and control-planelearning NVEs Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential www. juniper. net 2

DCI Scenario Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential www. juniper. net

DCI Scenario Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential www. juniper. net 3

VNI – EVI Relationship § One VNI per EVI • Better control of BGP

VNI – EVI Relationship § One VNI per EVI • Better control of BGP route distribution § Multiple VNIs per EVI • Less provisioning of RTs & RDs § => If we can auto-derive the RT & RD for 1 st bullet, then it is preferred over 2 nd bullet Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential www. juniper. net 4

RT & RD Auto Derivation § RD is auto-derive per EVPN baseline draft §

RT & RD Auto Derivation § RD is auto-derive per EVPN baseline draft § RT is auto-derive as follow similar to section 9. 4. 1. 1. 1 of baseline EVPN • Global admin field of RT is set to the AS number of PE • Three least significant bytes of the local admin field of the RT is set to the VNI or VSID, I-SID, or VID. Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential www. juniper. net 5

RT & RD Auto Derivation – Cont. • The most significant bit of the

RT & RD Auto Derivation – Cont. • The most significant bit of the local admin field of the RT is set as follow: • 0: auto-derived • 1: manually-derived Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential www. juniper. net 6

RT & RD Auto Derivation – Cont. • The remaining 7 bits of the

RT & RD Auto Derivation – Cont. • The remaining 7 bits of the most significant byte of local admin field, identifies the space in which the other 3 bytes are defined: • 0: EVI • 1: Vx. LAN • 2: NVGRE • 3: I-SID • 4: VID Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential www. juniper. net 7

Next Step § It is ready for WG call Copyright © 2004 Juniper Networks,

Next Step § It is ready for WG call Copyright © 2004 Juniper Networks, Inc. Proprietary and Confidential www. juniper. net 8