ISSU-MTR
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Contents ISSU-MTRLast Updated: July 23, 2010
The ISSU-MTR feature extends In Service Software Upgrade (ISSU) support to include the Multitopology Routing (MTR) functionality and all protocols and applications that support MTR. This module describes the benefits of using ISSU-MTR. Finding Feature InformationYour software release may not support all the features documented in this module. For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the Feature Information Table at the end of this document. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required. Information About ISSU-MTRISSU--MTRAll protocols and applications that support MTR and that also support In Service Software Upgrade (ISSU) have extended their ISSU support to include the MTR functionality. See the Cisco IOS In Service Software Upgrade Process module in the Cisco IOS High Availability Configuration Guide for information on ISSU-capable protocols and applications. ISSU allows a high-availability (HA) system to run in Stateful Switchover (SSO) mode even when different versions of Cisco IOS software are running on the active and standby Route Processors (RPs). This feature allows the system to switch over to a secondary RP that is running upgraded (or downgraded) software and to continue forwarding packets without session loss and with minimal or no packet loss. This feature is enabled by default. Additional ReferencesRelated DocumentsTechnical Assistance
Feature Information for ISSU-MTRThe following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
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