Router User Manual

ERX 8.0.x Hardware Guide
Network Management Tools
You can use different management tools to configure the system to
meet the speci
fic networking requirements.
CLI Management
The CLI provides fully developed and automated configuration and status
functiona lit
y through a local RS-232 port, Telnet, or SSH via any reachable
network. For a fu ll 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 a larm reporting. The system supports both Standard and Enterprise
MIBs (Manage
ment Information Bases). The Juniper N etworks E-series
Enterprise MIB is ASN.1 notated for easy im porting into third-party SNM P
management applications. For more information, see JUNOSe System Basics
Configurat
ion Guide, Chapter 4, Configuring SNMP.
NMC-RX Device Management System
The NMX-RX application provides a global method of managing all routers,
line modul
es, and ports through a graphical user interface.
Redundancy Features
This section describes system redundancy features.
SRP Modules
NOTE: This s
ection applies to ERX-7xx and ERX-14xx models o nly. 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 S RP modules of the same type are installed in the chassis, one acts a s a
primary (active) and the second as a redun da nt (standby) mod ule. Both SRP
modules sh
are a single SRP I/O module located in the rear of the chassis.
If the stan
dby SRP modu le detects that the primary SRP mod ule is not active
(and h igh-availability mode is not en abled), it reboots the system and takes
control. If high-availability mode has been enabled, automatic sw itchover
occurs wi
th 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 JUN O Se System
Basics Co
nfiguration Guide, Chapter 6, Managing Modules .
16 Redundancy Features