Cisco Cisco IOS Software Release 12.2(18)S

This document describes extensions made to Multiprotocol Label Switching Traffic Engineering (MPLS 
TE) that make it DiffServ aware. Specifically, the bandwidth reservable on each link for constraint-based 
routing (CBR) purposes can now be managed through two bandwidth pools: a global pool and a 
sub-pool. The sub-pool can be limited to a smaller portion of the link bandwidth. Tunnels using the 
sub-pool bandwidth can then be used in conjunction with MPLS Quality of Service (QoS) mechanisms 
to deliver guaranteed bandwidth services end-to-end across the network. 

The document contains the following sections:

12.0(11) ST

This feature was introduced.

12.0(14) ST

Support for the Cisco Series 7500(VIP) platform was added.

Support for the IS-IS Interior Gateway Protocol was added.

12.0(14) ST-1

Support was added for guaranteed bandwidth service directed to many 
destination prefixes (for example, guaranteed bandwidth service destined 
to an autonomous system or to a BGP community).

12.2(14)S

This feature was integrated into Cisco IOS Release 12.2(14)S.

12.2(18)S

This feature was integrated into Cisco IOS Release 12.2(18)S.

12.2(18)SXD

This feature was integrated into Cisco IOS Release 12.2(18)SXD.