Chapter 40 Differentiated Services
decrease it. Packets that have been previously marked red or yellow can only be marked with an equal or higher packet loss priority.
Packets marked red (high packet loss priority) continue to be red without evaluation against the PIR or CIR. Packets marked yellow can only be marked red or remain yellow so they are only evaluated against the PIR. Only the packets marked green are first evaluated against the PIR and then if they don’t exceed the PIR level are they evaluated against the CIR.
Figure 181 TRTCM -
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40.3 Activating DiffServ
Activate DiffServ to apply marking rules or IEEE 802.1p priority mapping on the selected port(s).
Click IP Application > DiffServ in the navigation panel to display the screen as shown.
Figure 182 IP Application > DiffServ
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