802 1aq and 802 1qbp support over evpn draft allan l2vpn spb evpn 02
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802.1aq and 802.1Qbp Support over EVPN draft-allan-l2vpn-spb-evpn-02 PowerPoint PPT Presentation


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802.1aq and 802.1Qbp Support over EVPN draft-allan-l2vpn-spb-evpn-02. Dave Allan, Jeff Tantsura, Don Fedyk, Ali Sajassi. Changes from Last Version. Terminology updated to align with EVPN draft Term MES deprecated Revised NLRI to more efficiently encode B-MAC I-SID relationships.

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802.1aq and 802.1Qbp Support over EVPN draft-allan-l2vpn-spb-evpn-02

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802 1aq and 802 1qbp support over evpn draft allan l2vpn spb evpn 02

802.1aq and 802.1Qbp Support over EVPNdraft-allan-l2vpn-spb-evpn-02

Dave Allan, Jeff Tantsura, Don Fedyk, Ali Sajassi


Changes from last version

Changes from Last Version

  • Terminology updated to align with EVPN draft

    • Term MES deprecated

  • Revised NLRI to more efficiently encode B-MACI-SID relationships


Revised nlri

Revised NLRI

+---------------------------------------+

| RD (8 octets) |

+---------------------------------------+

|Ethernet Segment Identifier (10 octets)|

+---------------------------------------+

| B-MAC Address Length (1 octet) |

+---------------------------------------+

| B-MAC Address (6 octets) |

+---------------------------------------+

| MPLS Label (n * 3 octets) |

+---------------------------------------+

| Base I-SID (3 octets) |

+---------------------------------------+

| I-SID vector length (1 octet) |

+---------------------------------------+

| I-SID vector (var length) |

// //

+---------------------------------------+

As per base draft

  • I-SID vector encodes contiguous I-SID list, each I-SID represented by 3 bits

  • 1=Y, 0=N

+--+--+--+

| R| T| I|

+--+--+--+

2 1 0

M’cast Receive interest

M’cast Xmit interest

I-SID interest


Next steps

Next Steps

  • Seek to align revised NLRI with PBB-EVPN draft

    • I-SID pinning would benefit from compressed encoding

  • Address multicast stitching

  • Fill in 802.1Qbp details

    • F-tag manipulation

    • Mapping of multicast (will be different from 802.1aq)

  • Comments from the list

  • WG adoption


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