M

MAC address

A 12-byte hexadecimal address used by the media access control layer of an 802.2 connection. It corresponds to the VTAM MACADDR= parameter and to the remote network access parameter for an 802.2 connection with SNA Server.

mapped conversation

A conversation type generally used by programs that accomplish tasks for users. In a mapped conversation, the sending program sends one record at a time, and the receiving program receives one record at a time. The characters MC_ at the beginning of a verb stand for mapped conversation. See also basic conversation.

mode name

The name used by the initiator of a session to designate the characteristics desired for the session, such as traffic pacing values, message-length limits, Sync Point and cryptography options, and the class of service within the transport network.

multiple sessions

In CPI-C, two or more concurrent sessions with different partner LUs. See LU-LU session.

MVS

Multiple Virtual Storage. Implies MVS/370, the MVS/XA product, and the MVS/ESA product.