Juniper Networks 8 manual SRP Module Redundancy, SRP I/O Module

ERX Overview

CAUTION: Do not remove the SRP module while the system is running.

NOTE: Some SRP modules require a minimum amount of memory to be used with JUNOSe Release 5.3.0 or a higher-numbered release. See the ERX Module Guide for module specifications.

For details about installing SRP modules, see “Installing Modules” on page 35.

SRP Module Redundancy

SRP module redundancy is available only for ERX-7xx and ERX-14xx models.

See “Redundancy Features” on page 16 for more information.

Nonvolatile Storage

The PCMCIA slot on the front of the SRP module holds a Type II PCMCIA nonvolatile storage (NVS) card. (See Figure 9 and Figure 10.) This card is loaded with the system’s software and configuration files. The PCMCIA card is factory installed.

CAUTION: Although you can remove PCMCIA NVS (Flash) cards from a running router, we recommend that you do not do so. If you remove the card while data is being written to or copied from the NVS card, data can be lost or corrupted. Therefore, we strongly recommend that you shut down the router before removing a PCMCIA NVS card.

SRP I/O Module

The SRP I/O module is a single corresponding input/output module that interfaces with the SRP modules through the system’s midplane. The same SRP I/O module works with all SRP modules, but is router specific. The I/O module used in ERX-7xx and ERX-14xx models cannot be used in the ERX-310 router, and vice versa. See Figure 2, Figure 4, and Figure 6 for locations.

Module Details

The SRP I/O module provides standard craft management interfaces, including:

10/100Base-T—The port enables access to the ERX router for Ethernet management functions via CLI or SNMP, for example.

ERX Modules 13