「BGP」- Keepalive

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BGP Router 收到 Peer 发送的 Keepalive 报文，将对等体状态置为已建立，同时后续定期发送 Keepalive 报文用于保持连接。

报文格式

Keepalive 报文格式中只包含报文头，没有附加其他任何字段。

报文示例

Frame 25: 73 bytes on wire (584 bits), 73 bytes captured (584 bits) on interface -, id 0
Ethernet II, Src: HuaweiTe_0b:50:b5 (00:e0:fc:0b:50:b5), Dst: HuaweiTe_2e:4a:35 (00:e0:fc:2e:4a:35)
Internet Protocol Version 4, Src: 10.1.12.2, Dst: 10.1.12.1
Transmission Control Protocol, Src Port: 179, Dst Port: 50115, Seq: 46, Ack: 46, Len: 19
Border Gateway Protocol - KEEPALIVE Message
    Marker: ffffffffffffffffffffffffffffffff
    Length: 19
    Type: KEEPALIVE Message (4)