Cisco Cisco IOS Software Release 12.0(22)S

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This guide presents 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. 

Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image 
support. Access Cisco Feature Navigator at 

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Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at 
the login dialog box and follow the instructions that appear.

12.0(11) ST

This feature was introduced.

12.0(14) ST

Support added for Cisco Series 7500(VIP) platform.

Support added for IS-IS Interior Gateway Protocol.

12.0(14) ST-1

Support 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).

12.0(22)S

This feature integrated into Cisco IOS Release 12.0(22)S.

12.2(28)SB

This feature was integrated into Cisco IOS Release 12.2(28)SB.