The packets are forwarded to the appropriate fabric queue according to the traffic
class/color combination. On a transit router, when the packet is forwarded out of
the tunnel, the router-generated output policy then sets the EXP bits back according
to the traffic class/color combination. Typically, the effect of the EXP bits to traffic
class/color combination to EXP bits is no change.
On an egress router, where the tunnel terminates, no router-generated output policy
is attached, and the packets pass out of the router subject to any manually configured
IP policy management applied to their traffic class/color combination.
Related Topics ■ See the JUNOSe Policy Management Configuration Guide for more information
about defining policies.
■ Configuring MPLS and Differentiated Services on page 299
■ Configuring EXP Bits for Differentiated Services on page 300
■ Example Differentiated Services Application and Configuration on page 300
■ Classifying Traffic for Differentiated Services on page 303
■ mark-exp
■ mpls classifier-list
■ mpls diff-serv phb-id traffic-class
■ mpls match exp-bits
■ mpls match traffic-class
■ mpls policy-list
■ mpls policy-statistics
■ mpls traffic-class
■ tunnel mpls diff-serv phb-id
Example Traffic Class Configuration for Differentiated Services ■ 313
Chapter 3: Configuring MPLS
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