Cisco Cisco IOS Software Release 12.0(23)S
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Cisco IOS Release 12.0(23)S
Stateful Switchover
Feature History
This document describes the Stateful Switchover (SSO) feature in Cisco IOS Release 12.0(23)S. It
includes the following sections:
includes the following sections:
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Note
Development of the SSO feature is an incremental step within an overall program to improve the
availability of networks constructed with Cisco IOS routers.
availability of networks constructed with Cisco IOS routers.
is particularly useful at the network edgeSSO provides protection for network edge devices with dual
Route Processors (RPs) that represent a single point of failure in the network design, and where an
outage might result in loss of service for customers.
Route Processors (RPs) that represent a single point of failure in the network design, and where an
outage might result in loss of service for customers.
Release
Modification
12.0(22)S
This feature was introduced.
12.0(23)S
Support was added for 1xGE and 3xGE line cards on the
Supported Platforms
For platforms supported in Cisco IOS Release 12.0(22)S and 12.0(23)S, consult Cisco Feature
Navigator.
Navigator.