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draft-sd-l2vpn-evpn-overlay- 02. txt

draft-sd-l2vpn-evpn-overlay- 02. txt.

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draft-sd-l2vpn-evpn-overlay- 02. txt

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  1. draft-sd-l2vpn-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) IETF 88, November 2013 Vancouver

  2. Changes since Rev01 • 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-plane-learning NVEs

  3. DCI Scenario

  4. 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 1st bullet, then it is preferred over 2nd bullet

  5. 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 isset to the VNI or VSID, I-SID, or VID.

  6. RT & RD Auto Derivation – Cont. • The most significant bit ofthe local admin field of the RT is set as follow: • 0: auto-derived • 1: manually-derived

  7. 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: VxLAN • 2: NVGRE • 3: I-SID • 4: VID

  8. Next Step • It is ready for WG call

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