Environment vector list

The environment vector list provides information specific to the host in which the exit is operating (see Table 1). The information includes the network ID, the SSCP name, and other information that identifies the environment in which the exit routine is operating. The vector list is preceded by a 2-byte header field.

Table 1. Environment vectors
Dec (Hex) offset	Size (Bytes)	Description
A header precedes the list of vectors. This header is followed by several vectors that can be in any order:
0 (0)	2	Total length of the parameter list including this length field (m)
The network identification vector:
0 (0)	1	Length of the vector including this field (n)
1 (1)	1	ID of the vector (X'06')
2 (2)	n-2	ID of the network in which this exit routine is operating (from the NETID start option)
Control point name vector:
0 (0)	1	Length of the vector including this field (n)
1 (1)	1	ID of the vector (X'07')
2 (2)	n-2	SSCP name of the host in which this exit is operating. The start option SSCPNAME is required.
Node characteristics vector:
0 (0)	1	Length of the vector including this field (n)
1 (1)	1	ID of the vector (X'0C')
2 (2)	n-2	Node characteristics: Bit Value B'1....... ........' This node is a network node B'0....... ........' This node is not a network node B'.1...... ........' This node is an end node B'.0...... ........' This node is not an end node B'..1..... ........' This node is an interchange network node B'..0..... ........' This node is a pure network node B'...1.... ........' Reserved B'...0.... ........' Reserved B'....1... ........' This node is a central directory server B'....0... ........' This node is not a central directory server B'.....1.. ........' This node is a border node B'.....0.. ........' This node is not a border node