Cisco Cisco IOS Software Release 12.2(14)S
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Release Number 12.2(14)S
MPLS Traffic Engineering – DiffServ Aware
(DS-TE)
(DS-TE)
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.
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.
Feature History
The guide contains the following sections:
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Release
Modification
12.0(11) ST
DS-TE feature 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).
prefixes (for example, guaranteed bandwidth service destined to an autonomous
system or to a BGP community).
12.2(14)S
Feature integrated into Cisco IOS Release 12.2(14)S.