Cisco Cisco IOS Software Release 12.0(24)S

The RSVP Refresh Reduction and Reliable Messaging feature includes refresh reduction, which 
improves the scalability, latency, and reliability of Resource Reservation Protocol (RSVP) signalling to 
enhance network performance and message delivery.

Cisco IOS software is packaged in feature sets that are supported on specific platforms. To get updated 
information regarding platform support for this feature, access Cisco Feature Navigator. Cisco Feature 
Navigator dynamically updates the list of supported platforms as new platform support is added for the 
feature.

Cisco Feature Navigator is a web-based tool that enables you to determine which Cisco IOS software 
images support a specific set of features and which features are supported in a specific Cisco IOS image. 
You can search by feature or release. Under the release section, you can compare releases side by side 
to display both the features unique to each software release and the features in common. 

To access Cisco Feature Navigator, you must have an account on Cisco.com. If you have forgotten or 
lost your account information, send a blank e-mail to cco-locksmith@cisco.com. An automatic check 
will verify that your e-mail address is registered with Cisco.com. If the check is successful, account 
details with a new random password will be e-mailed to you. Qualified users can establish an account 
on Cisco.com by following the directions found at this URL:

http://www.cisco.com/register

Cisco Feature Navigator is updated regularly when major Cisco IOS software releases and technology 
releases occur. For the most current information, go to the Cisco Feature Navigator home page at the 
following URL:

12.2(13)T

This feature was introduced.

12.0(24)S

This feature was integrated into Cisco IOS Release 12.0(24)S.

For platforms supported in Cisco IOS Release 12.0(24)S and 12.2(13)T, consult Cisco Feature 
Navigator.