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Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 5 Software Upgrade Processes Supported by Cisco ASR 1000 Series Routers
ISSU Upgrade for Redundant Platforms
The request platform software package install node file consolidated file name
interface-module-delay secs command is used for the one-shot ISSU procedure.
interface-module-delay is an optional parameter.
The interface-module-delay option specifies the time in seconds to wait after the first SIP and SPA
combination has completed its upgrade or reboot before starting the upgrade of the next SIP and SPA. A
minimum value of 60 seconds is recommended to ensure that all of the previously restarted SPAs are
operational.
Example:
router# request platform software package install node file bootflash
interface-module-delay 60
The SIP-delay option enables you to delay the SIP restart duration thus enabling you to choose the restart
time to minimize traffic loss.
The request platform software package install node attach command enables the users to view the
last run log that contains the reports of all the stages of the one-shot upgrade.
The request platform software package install file mdr command enables the users to initiate the
ISSU procedure using MDR. For more information see, “Minimal Disruptive Restart ISSU” section on
page 5-152.
ISSU Procedures (Prior to Cisco IOS XE Release 2.1.2)
These instructions should be followed only if you are upgrading using ISSU to a pre-Cisco IOS XE 2.1.2
release. If you are using Cisco IOS XE Release 2.2.1 or later, follow the earlier instructions in this
chapter to perform your ISSU upgrade.
This section contains the following topics:
• Using ISSU to Perform a Consolidated Package Upgrade in a Dual Route Processor Configuration
(Prior to Cisco IOS XE 2.1.2), page 5-72
• Using ISSU to Upgrade Subpackages (Prior to Cisco IOS XE Release 2.1.2), page 5-72
Using ISSU to Perform a Consolidated Package Upgrade in a Dual Route Processor Configuration
(Prior to Cisco IOS XE 2.1.2)
This procedure is identical to the procedure used to upgrade post-Cisco IOS XE 2.2 images using ISSU.
See the “Using ISSU to Perform a Consolidated Package Upgrade in a Dual Route Processor
Configuration” section on page 5-7 for instructions on performing this process.
Using ISSU to Upgrade Subpackages (Prior to Cisco IOS XE Release 2.1.2)
This procedure will work on single RPs configured to run two IOS processes or on routers configured
with dual RPs.
Versions of Cisco IOS XE Release 2.1 prior to Cisco IOS XE Release 2.1.2 and versions of Cisco IOS
XE Release 2.2 prior to Cisco IOS XE Release 2.2.1 and installations not booted from the RPBase
subpackage on Cisco IOS XE Release 2.2.1 or 2.1.2 require a different ISSU upgrade procedure.
Step 1 Copy all subpackages other than the RPBase subpackage into the same directory.