ZyXEL Communications ZyXEL Dimension ES-2024PWR - Manual (Page 227)

Ethernet Switch CLI Reference Guide
227
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H A P T E R
65
trTCM Commands
This chapter explains how to use commands to configure the Two Rate Three Color Marker
(trTCM) feature on the Switch.
65.1 trTCM Overview
Two Rate Three Color Marker (trTCM, defined in RFC 2698) is a type of traffic policing that
identifies packets by comparing them to two user-defined rates: the Committed Information
Rate (CIR) and the Peak Information Rate (PIR). trTCM then tags the packets:
• red - if the packet exceeds the PIR
• yellow - if the packet is below the PIR, but exceeds the CIR
• green - if the packet is below the CIR
The colors reflect the packet’s loss priority and the Switch changes the packet’s DiffServ Code
Point (DSCP) value based on the color.
65.2 Command Summary
The following section lists the commands for this feature.
Table 137 trtcm Command Summary
COMMAND DESCRIPTION M P
trtcm Enables trTCM on the Switch. C 13
trtcm mode Sets the mode for trTCM on the Switch. C 13
no trtcm Disables trTCM feature on the Switch. C 13
interface port-channel <port-list> Enters subcommand mode for configuring
the specified ports.
C 13
trtcm Enables trTCM on the specified port(s). C 13
no trtcm Disables trTCM on the port(s). C 13
trtcm cir <rate> Sets the Commit Information Rate on the
port(s).
C 13
trtcm pir <rate> Sets the Peak Information Rate on the
port(s).
C 13
trtcm dscp green <0-63> Specifies the DSCP value to use for
packets with low packet loss priority.
C 13