User Guide

18 OmniS/R Basics
The Management Processor Module (MPX)
The MPX is the core of Omni Switch/Router’s distrib-
uted management functionality. It provides system
services such as configuration information, bridge
management functions, basic routing functions, the
SNMP management agent, and access to both the
Command Line Interface and User Interface software.
Switching modules are dependent on the
MPX for
downloading software and receiving initialization and
configuration information. In addition, Network
Management Software (NMS), such as X-Vision,
depends on the MPX to send and receive SNMP
messages for managing the switch.
MPX modules support a redundant configuration, so
that if one MPX fails, the other MPX automatically
assumes all management responsibilities.
The
MPX offers the following features:
♦ VBUS Mode 1 & 2 Support ♦
Certain feature parameters (such as
QoS) are supported only when the
Omni Switch/Router chassis runs in
VBUS Mode 2. For VBUS Mode 2
support, your chassis must have only
new generation (Kodiak-based)
Ethernet modules and/or WSXs
installed.
The Omni Switch/Router runs in
VBUS Mode 1 for chassis configura-
tions that use any early generation
(non-Kodiak based) Ethernet
modules.
MPX Features and Options
Backplane (MVBUS) Speed Up to 22 Gbps
Standard Flash Memory 8 MB or 16 MB
(16 MB required for
Release 4.4 and
later)
(16 MB maximum)
Standard DRAM 32 MB or 64 MB
(64 MB required for
Release 4.4 and
later)
(64 MB maximum)
HRE-X Supported? Yes
Advanced Routing Supported? Yes