The invention concerns the transfer of messages using an UDP transport. A
typical example is offered by the SNMP messages, used to perform the
communication (C1, C2) between manager units (M, M') and agent units (A,
A') within a system for the management of data communication networks,
such as internet. The payload of messages and preferably the messages as
a whole shall undergo a compression operation based on the recognition of
sequences that periodically appear in the message.