Header compression (COMPHDR)

This attribute is a list of header data compression techniques supported by the channel.

For sender, server, cluster-sender, cluster-receiver, and client-connection channels the values specified are in order of preference with the first compression technique supported by the remote end of the channel being used. The channels' mutually supported compression techniques are passed to the sending channel's message exit where the compression technique used can be altered on a per message basis. Compression alters the data passed to send and receive exits.

Possible values are:

NONE: No header data compression is performed. This value is the default value.
SYSTEM: Header data compression is performed.

This attribute is valid for all channel types.