Halt Of Unified Issu During Initialization Phase Overview; Halting Unified Issu During Initialization Phase - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - SERVICE AVAILABILITY CONFIGURATION GUIDE 2010-10-08 Configuration Manual

JunosE 11.3.x Service Availability Configuration Guide

Halt of Unified ISSU During Initialization Phase Overview

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Halting Unified ISSU During Initialization Phase

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The options that are available to halt the unified in-service software upgrade depend on
the phase that the upgrade is in when you attempt to halt it. The phase also affects the
state of the router after the upgrade is halted.
During the initialization phase, you can halt the unified ISSU process by issuing the issu
stop command. This action reloads the redundant SRP module with the armed upgrade
release. As a result, unified ISSU is placed in the idle state and the following releases are
present on the router:
Primary SRP module—Running (original) release
Redundant SRP module—Upgrade release
Line modules—Running (original) release
issu stop
Halting Unified ISSU During Initialization Phase on page 142
Halt of Unified ISSU During Upgrade Phase Overview on page 143
Halting Unified ISSU During Upgrade Phase on page 143
After you stop unified ISSU, you can return the router to the state it was in when you
began the unified in-service software upgrade. To roll the router back to its beginning
state with the redundant SRP module running the original release, you must perform the
following steps to arm the redundant SRP module with the running release:
Turn off auto synchronization.
1.
host1(config)#disable-autosync
Specify that the router use the running release when it reboots.
2.
host1(config)#boot system erx_x-y-z.rel
Synchronize the NVS file system of the redundant module with that of the primary
3.
module.
host1#synchronize
The redundant SRP module automatically reboots because the armed release (the
original release) now differs from the software release it is currently running (the
upgrade release).
Verify that stateful SRP switchover is enabled.
4.
host1#show redundancy
Halt of Unified ISSU During Initialization Phase Overview on page 142
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