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7.4. Ethernet Segment Route

7.4. Ethernet Segment Route​

An Ethernet Segment route type specific EVPN NLRI consists of the following:

               +---------------------------------------+
               |  RD (8 octets)                        |
               +---------------------------------------+
               |Ethernet Segment Identifier (10 octets)|
               +---------------------------------------+
               |  IP Address Length (1 octet)          |
               +---------------------------------------+
               |  Originating Router's IP Address      |
               |          (4 or 16 octets)             |
               +---------------------------------------+

For procedures and usage of this route, please see Section 8.5 ("Designated Forwarder Election"). The IP address length is in bits. For the purpose of BGP route key processing, only the Ethernet Segment ID, IP Address Length, and Originating Router's IP Address fields are considered to be part of the prefix in the NLRI.

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