Nortel Networks NN43021-110 - Manual (Page 56)

56 System architecture
NRS Manager
NRS Manager is a web-based management application used to configure,
provision, and maintain the NRS. Key usability improvements introduced in
the Linux-based NRS Manager are:
• Enhanced searching and sorting capabilities including wild cards and
selectable scope of the search
• Capability to copy and move routing entries
• Simplified configuration for geographic redundancy
• Routing tests are fully integrated with endpoint and routing entry
configuration
• SIP phone context mapping tools are fully integrated with endpoint and
routing entry configuration
• Security infrastructure provided by the Enterprise Common Manager
framework
For more information, see Network Routing Service Installation and
Commissioning (NN43001-564)
Software architecture
The superloop network card and IPE cards contain microprocessors
that allow software changes and upgrades from the disk drive unit to be
downloaded. These downloads can occur automatically, after a system
reload, or manually through software program commands.
Call processing, maintenance, and administration are controlled by software
programs stored either as firmware programs, as software programs
resident in system memory, or as nonresident programs on disk. The
information that describes system configuration and associated IPE is called
office data. This data resides in the system memory and on disk.
Firmware
Firmware provides fundamental programs consisting of hard-wired logic
instructions stored in Programmable Read-only Memory (PROM). Firmware
programs manipulate data in the central processor and control input/output
operations, error diagnostics, and recovery routines.
Software
Software programs consist of instruction sequences that control call
processing, IPE, administration, and maintenance functions. Several
generic software programs with optional feature packages are available.
Nortel Communication Server 1000
Communication Server 1000M and Meridian 1 Large System Overview
NN43021-110 01.03 Standard
Release 5.0 18 February 2008
Copyright © 2003-2008, Nortel Networks
.