7.4. Ethernet Segment Route (以太网段路由)

7.4. Ethernet Segment Route (以太网段路由)

Ethernet Segment route type specific EVPN NLRI 由以下内容组成:

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

有关此路由的过程和用法, 请参阅第 8.5 节 ("Designated Forwarder Election"). IP 地址长度以 bit 为单位. 为了进行 BGP route key 处理, 只有 Ethernet Segment ID, IP Address Length 和 Originating Router's IP Address 字段被视为 NLRI 中前缀的一部分.