Disabling And Reenabling Line Modules, Srp Modules, And Sfms - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SYSTEM BASICS CONFIGURATION GUIDE 2010-10-04 Configuration Manual

JunosE 11.3.x System Basics Configuration Guide

Disabling and Reenabling Line Modules, SRP Modules, and SFMs

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SRP modules; the router's switch fabric is distributed between the SRP modules and
SFMs. The switch fabric is divided into fabric slices; each SRP module and SFM has a
resident fabric slice. At least four of the five possible fabric slices must be installed for
the E120 and the E320 routers to operate.
You can configure the E120 router with a 320 Gbps fabric by installing SRP 120 modules
and SFM 120 modules, or SRP 320 modules and SFM 320 modules.
You can configure the E320 router with a 100 Gbps fabric by installing SRP 100 modules
and SFM 100 modules. To achieve increased switch fabric capacity and speed, you can
configure the E320 router with a 320 Gbps fabric by installing SRP 320 modules and
SFM 320 modules.
You can configure the SC and the fabric slices on the SRP modules separately. For
example, if you disable the fabric slice on the standby SRP module by using the slot
disable 7 fabric command, the SC on that SRP module is still enabled.
Redundancy is supported for SRP modules on the E120 and E320 routers. For more
information, see SRP Module Redundancy in JunosE Services Availability Configuration
Guide.
SRP modules on the E120 and E320 routers have two slots for flash cards; other E Series
routers have only a single slot. Cards installed in the second slot can be used only for
core dump (.dmp) files. For more information, see "Managing Flash Cards on SRP
Modules" on page 364.
SRP modules on the E120 and E320 routers have a corresponding SRP IOA that contains
a Fast Ethernet management port. You can configure this port to access the router from
the CLI or SNMP. For more information, see "Managing the Ethernet Port on the SRP
Module" on page 388 .
For information about using high availability mode for stateful SRP switchover, see
Guidelines for Activating High Availability in JunosE Services Availability Configuration
Guide.
Disabling a line module, an SRP module, or an SFM has the same effect as removing that
module from a slot. A disabled module cannot operate, although its configuration remains
in NVS. For the module to operate, you must reenable it.
Use to disable the module in the specified slot.
You can use this command to disable a module so that you can run diagnostic tests
on the module.
You cannot use this command on a standby SRP module.
If you specify a slot on the E120 or E320 router that contains an SRP module, you disable
the SC subsystem on that slot by default. You do not, however, disable the fabric slice
that resides on the slot.
Copyright © 2010, Juniper Networks, Inc.