Avaya Media Processing Server Series System (Software Release 2.1) Instrukcja Użytkownika Pobierz pdf (Strona 37)

Avaya MPS Architectural Overview

# P0602477 Ver: 3.1.11 Page 37

performs message server functions for VENGINE. It funnels VOS messages that have

been translated by VAMP to VENGINE processes and service daemons. VMST

interprets and supports all pre-existing VMS options, allowing scripts incorporating

them to continue functioning under the present release without any modifications.

The advent of the TMS brings about an increase in the number of lines supportable on

a single platform, as well as an increase in potential message traffic. In order to handle

the increase in addressable lines, this modified version of VMS was created

(previously, VMS addressing was limited to a one-to-one correspondence of VMS to

CPS/VPS). Though VMST can still act on behalf of a single MPS, VMST can also

address the new paradigm by supporting many real or virtual MPS’ in a single process

(the VMST process assumes the functions of one or more VMS’ running on the same

node). In addition, VMST:

• eliminates traffic between VMS’, since all messages are now passed between

threads inside the VMST process.

• supports interapplication communications between the MPS systems (the

MPS system to which an application directs a message must be directly

connected to the MPS running the application). Inter-VMST traffic is

supported as described in Interapplication/Host Service Daemon Data

Exchange on page 215.

• supports automatic detection of lost TCP/IP connections (pinging)

The VMST process is located in $MPSHOME/PERIase/bin (Solaris) or

%MPSHOME%\bin (Windows). When used with a single MPS, VMST is started by

SRP through the $MPSHOME/mpsN/etc/ase.cfg file. When used with multiple

MPS’ (whether real or virtual), it is started through the

$MPSHOME/common/etc/gen.cfg file. In addition to VENGINE and VAMP,

VMST makes connections to the VSUPD processes

VMST is aliased as vms in its SRP startup files, but should not be confused with

previous (“non-extended”) versions of VMS.

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Avaya Media Processing Server Series System (Software Release 2.1) Instrukcja Użytkownika Strona 37