Supporting Quality of Service Features

Quality of Service (QoS) LSP support is an important attribute of MPLS (Multiprotocol Label Switching).

MPLS supports the Differentiated Services (DiffServ) model of QoS. The DiffServ QoS model is supported by mapping different traffic classes to different LSPs, or by using the EXP bits in the MPLS shim header to identify traffic classes with particular forwarding requirements.