This appendix covers topics related to quality of service (QoS) on Multiprotocol Label Switching (MPLS) networks in more detail than Chapter 10, “Quality of Service in a Virtualized Environment” (where they were originally presented). This appendix discusses the following:
Uniform tunnel and pipe mode
MPLS traffic engineering
In uniform tunnel mode, any changes to a packet’s differentiated services code points (DSCPs) are permanent, as shown in Figure B-1 and discussed in the following list:
A packet arrives at link switched router (LSR) A with a DSCP setting of 3. The switch policy determines that the appropriate Expedited ...