ZyXEL Communications OLT2406, User Manual

Page: 521 / 766

Chapter 73 Policy Rule
OLT2406 User’s Guide
521
Figure 264 TRTCM - Color-blind Mode
73.4.2 TRTCM - Color-aware Mode
In color-aware mode the evaluation of the packets uses the existing packet loss priority. TRTCM can
increase a packet loss priority of a packet but it cannot 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, they will be evaluated against the CIR.
Figure 265 TRTCM - Color-aware Mode
73.5 TRTCM Commands
The following table lists the TRTCM commands.
Exceed
PIR?
High Packet
Loss
Exceed
CIR?
Medium Packet
Loss
NO
YES
NO
YES
Low Packet
Loss
Exceed
PIR?
High Packet
Loss
Exceed
CIR?
Medium Packet
Loss
NO
YES
NO
YES
Low Packet
Loss
High Packet
Loss
NO
YES
Red? Yellow?
Medium Packet
Loss
NO
YES
Table 265 TRTCM Commands
COMMAND DESCRIPTION M P
trtcm
Enables TRTCM on the OLT. C 13
trtcm mode <color-aware|color-
blind>
Sets the mode for TRTCM on the OLT. C 13
no trtcm
Disables TRTCM feature on the OLT. C 13
interface port-channel < aid >
Enters sub-command mode for configuring the
specified ports.
aid
:
<msc|ge|pon>-< slot >-< port >
C 13