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CHAPTER
5-1
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
5
Software Upgrade Processes Supported by
Cisco ASR 1000 Series Routers
Cisco ASR 1000 Series Aggregation Services Routers support the following software upgrade
procedures:
• In-Service Software Upgrades (ISSU) for redundant platforms—The ISSU process allows software
to be updated or otherwise modified while packet forwarding continues with minimal interruption.
ISSU supports two different software upgrade modes:
–
Consolidated package mode
–
Subpackage mode
The supported platforms include Cisco ASR 1006 and Cisco ASR 1013 Routers.
• Upgrade process with service impact for non redundant platforms—Non-hardware-redundant
chassis models (such as the Cisco ASR 1001 Router, Cisco ASR 1001-X Router, Cisco ASR 1002
Router, Cisco ASR 1002-X Router, and Cisco ASR 1004 Router) do not support ISSU upgrade or
downgrade. Instead subpackage software upgrade is supported only if the router is running in
subpackage mode.Traffic loss cannot be avoided during the installation of the ESP package as a part
of ISSU.
Table 5-1 lists Compatibility matrix of the software upgrade process for various Cisco ASR 1000 Series
Aggregation Services Router.
Table 5-1 Software Upgrade Compatibility Matrix for Various Cisco ASR 1000 Series
Aggregation Services Router Platforms
Platform Consolidated Package SubPackage
Cisco ASR 1006 Router Supported Supported
CiscoASR 1013 Router Supported Supported
CiscoASR 1004 Router Not Supported Supported
CiscoASR 1002 Router Not Supported Supported
Cisco ASR 1002-X Router Not Supported Supported
CiscoASR 1002-F Router Not Supported Supported
CiscoASR 1001 Router Not Supported Supported
CiscoASR 1001-X Router Not Supported Supported