|NOTE: This product is no longer being sold and might not be supported. View the End-of-Life Notice to learn:
Release 12.2(22)S, the fourth customer release of the Release 12.2S family, adds support for the Cisco ONS 15500 Series Routers. An update to Release 12.2(22)S will extend the benefits of Cisco High Availability to MPLS networks that run the Cisco 7500 Series Router.
For information about previous releases in this family, please visit the Release 12.2S Family page.