Ethernet Switch CLI Reference Guide
293
CHAPTER 77
trTCM Commands
This chapter explains how to use commands to configure the Two Rate Three Color Marker
(trTCM) feature on the Switch.
77.1 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.
77.2 Command Summary
The following section lists the commands for this feature.
Table 167 trtcm Command Summary
COMMAND DESCRIPTION M P
trtcm Enables trTCM on the Switch. C 13
trtcm mode <color-aware|color-blind> Sets the mode for trTCM on the Switch. C 13
no trtcm Disables trTCM feature on the Switch. C 13
no trtcm dscp profile <name> Removes the specified DSCP profile. C 13
trtcm dscp profile <name> dscp green <0-63>
yellow <0-63> red <0-63>
Configures a DSCP profile to specify the
DSCP values that you want to assign to
packets based on the color they are
marked via trTCM
C13
show interfaces config <port-list> trtcm dscp
profile
Displays DSCP profile settings on the
specified port(s).
E3
show trtcm dscp profile Displays all DSCP profiles settings on the
Switch.
E3
interface port-channel <port-list> Enters subcommand mode for configuring
the specified ports.
C13
trtcm Enables trTCM on the specified port(s). C 13
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