EGP

(Exterior Gateway Protocol)

0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Version Type Code Status
Checksum Autonomous System
Sequence Data :::

 

EGP Parameters

Version 8 bits
EGP version.
Type. 8 bits.
The type identifies the message type.

Code. 8 bits.
The code identifies the message code (subtype).

Status. 8 bits.
The status contains message-dependent status information.

Checksum. 16 bits.
The EGP checksum is the 16-bit one's complement of the one's complement sum of the EGP message starting with the EGP version number field. When computing the checksum the checksum field itself should be zero.

Autonomous System. 16 bits.
The assigned number identifying the particular autonomous system.

Sequence. 16 bits.
The sequence number is for the send state variable (commands) or receive state variable (responses and indications).

Data. Variable length.