Qos Dei - Alcatel-Lucent OmniSwitch 6850-48 Cli Reference Manual

QoS Commands

qos dei

Configures the global Drop Eligible Indicator (DEI) bit mapping and marking setting for all QoS
ports.The DEI setting applies to packets marked yellow (non-conforming) as the result of Tri-Color Mark-
ing (TCM) rate limiting.
qos dei {ingress | egress}
qos no dei {ingress | egress}
Syntax Definitions
ingress
egress
Defaults
By default, no DEI/CFI bit marking or mapping is done.
Platforms Supported
OmniSwitch 6400, 6850, 6850E, 6855, 9000E
Usage Guidelines
•
Use the no form of this command to disable the global DEI bit mapping (ingress) or marking (egress)
configuration for the switch.
•
Use the qos port dei command to set the DEI bit mapping and marking configuration for a specific
port. Note that the port setting takes precedence over the global DEI setting.
•
Packets marked yellow by TCM rate limiting are still transmitted when there is no congestion on the
egress port queues. Setting the DEI/CFI bit for yellow egress packets (qos dei egress) ensures that an
upstream switch is made aware that the packet was marked yellow.
•
When a switch receives a yellow packet with the DEI/CFI bit set and ingress DEI/CFI bit mapping is
enabled (qos dei ingress), the packet is mapped to an internal drop precedence or yellow color mark-
ing for the switch.
Examples
-> qos dei ingress
-> qos dei egress
-> qos no dei ingress
-> qos no dei egress
Release History
Release 6.4.3; command was introduced.
OmniSwitch CLI Reference Guide
Maps the DEI/CFI bit to yellow (non-conforming) if this bit is set for
ingress traffic.
Marks the DEI/CFI bit for egress packets if TCM marked the packets
yellow.
June 2012 page 32-21