Juniper Networks ERX Hardware 8 - Manual (Page 34)

ERX 8.0.x Hardware Guide
Network Management Tools
You can use different management tools to configure the system to
meet the specific networking requirements.
CLI Management
The CLI provides fully developed and automated configuration and status
functionality through a local RS-232 port, Telnet, or SSH via any reachable
network. For a full discussion of the CLI, see JUNOSe System Basics
Configuration Guide, Chapter 2, Command-Line Interface.
SNMP MIB Management
The system offers a complete SNMP interface for configuration, status,
and alarm reporting. The system supports both Standard and Enterprise
MIBs (Management Information Bases). The Juniper Networks E-series
Enterprise MIB is ASN.1 notated for easy importing into third-party SNMP
management applications. For more information, see JUNOSe System Basics
Configuration Guide, Chapter 4, Configuring SNMP.
NMC-RX Device Management System
The NMX-RX application provides a global method of managing all routers,
line modules, and ports through a graphical user interface.
Redundancy Features
This section describes system redundancy features.
SRP Modules
NOTE: This section applies to ERX-7xx and ERX-14xx models only. ERX-310 routers
contain one SRP module and therefore do not offer SRP module redundancy.
ERX-7xx and ERX-14xx models use a 1:1 redundancy scheme for the SRP module.
When two SRP modules of the same type are installed in the chassis, one acts as a
primary (active) and the second as a redundant (standby) module. Both SRP
modules share a single SRP I/O module located in the rear of the chassis.
If the standby SRP module detects that the primary SRP module is not active
(and high-availability mode is not enabled), it reboots the system and takes
control. If high-availability mode has been enabled, automatic switchover
occurs with near hitless failover. If you upgrade software, you must copy
the software to the redundant SRP and reboot it. For information about
configuring and managing SRP module redundancy, see JUNOSe System
Basics Configuration Guide, Chapter 6, Managing Modules.
16 Redundancy Features