Avaya Media Processing Server Series System (Software Release 2.1) Manual de usuario descargar pdf (Pagina 45)

Avaya MPS Architectural Overview

# P0602477 Ver: 3.1.11 Page 45

NCD

NCD is comprised of three distinct logical entities: bridge control; Phase-Lock Loop

(PLL) control; and a VSH interface to the NIC board itself. As part of the tmscomm

component process group, one instance of NCD exists on a node containing TMS’. It

interfaces with the TRIP and CCM processes in each VOS on the node, and with

embedded processes running on the two chassis NICs (i.e., master, slave).

The NCD Bridge Control Process (NCD BCP) provides a common interface to

support bridging between Resource Sets (RSETs) on or between TMS’. NCD BCP

orchestrates the setup and teardown of the various bridging configurations supported

by the TMS and NIC architecture. NCD BCP also has the ability to construct bridges

between a pair of TMS’ where the connections are physically hardwired (on a

Hub-NIC card), or locked on a Time Space Switch (TSS) on the NIC.

The NCD PLL process provides configuration and control of the timing and clock

sources on and between TMS’ in a common chassis. NCD PLL is primarily used in

small systems that do not have a NIC to provide these functions.

The NCD VSH interface provides the ability to send simple configuration commands

to the NIC as well as query the current configuration. For a list of these commands,

see the NCD Commands section in the Avaya Media Processing Server Series

Command Reference Manual.

NCD associations:

• Connections: TRIP (local and remote)

• Location: $MPSHOME/bin or %MPSHOME%\bin

• Configuration File: $MPSHOME/common/etc/tms/tms.cfg

• SRP Startup File: $MPSHOME/tmscommN/etc/vos.cfg

nriod

The nriod file provides information and access to MPS files for remote PeriView

processes in both the Solaris and Windows environments. nriod is a system daemon

and, as such, only one instance of this process is required for each node.

nriod associations:

• Connections: Any process communicating with the PeriView Task Scheduler

• Location: $MPSHOME/bin or %MPSHOME%\bin

• Configuration File: Not applicable

• SRP Startup File: $MPSHOME/common/etc/gen.cfg

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Avaya Media Processing Server Series System (Software Release 2.1) Manual de usuario Pagina 45