The Batch Interface › PARM Parameters › COMPNEG

COMPNEG

COMPNEG specifies whether the compression negotiation is allowed, and if so, which compression algorithm the negotiation process substitutes.

compression-method

Specifies the data compression method which the negotiation process substitutes. The possible values for this parameter are:

COMPACT

COMPACTL

YES

RLE

HUFFMAN

LZLARGE

LZMEDIUM

LZSMALL

LZRW3

ZLIB

ZLIB1 – ZLIB9

NO

Specifies that the data compression method is not negotiated. This causes transfers requesting an unsupported or disallowed compression method to be failed.

Default: YES

Notes:

• If a transfer’s compression method that the initiator or partner requests by both participants is known and allowed, that method is used to compress the transfer data.
• If the suggested compression method is not known or is not permitted by a participant involved in the transfer, the compression method that is specified for the COMPNEG parameter can be used to attempt to negotiate to an alternate compression method which is acceptable to both partners of the transfer.
• The compression method that is specified for COMPNEG must be on the list of allowed algorithms for the local server, as an example, the COMPRESS_ALLOWED parameter.