Activating Diffserv - ZyXEL Communications XGS4700-48F Manual

Chapter 39 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 184 TRTCM - Color-aware Mode

39.3 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 185 IP Application > DiffServ
354
NO
Exceed
Red?
PIR?
YES
YES
High Packet
High Packet
Loss Loss
NO NO
Yellow?
YES
Medium Packet Medium Packet
Loss
XGS4700-48F User's Guide
NO
Exceed
Low Packet
Loss
CIR?
YES
Loss