• Make packets eligible for dropping based on their DEI value.
CONFIGURATION mode
dei enable
By default, packets are colored green, and DEI is marked 0 on egress.
Honoring the Incoming DEI Value
To honor the incoming DEI value, you must explicitly map the DEI bit to a Dell Networking OS drop
precedence.
Precedence can have one of three colors.
Precedence
Description
Green High-priority packets that are the least preferred to be dropped.
Yellow Lower-priority packets that are treated as best-effort.
Red Lowest-priority packets that are always dropped (regardless of congestion status).
• Honor the incoming DEI value by mapping it to the Dell Networking OS drop precedence.
INTERFACE mode
dei honor {0 | 1} {green | red | yellow}
You may enter the command once for 0 and once for 1.
Packets with an unmapped DEI value are colored green.
Example of Viewing DEI-Honoring Configuration
To display the DEI-honoring configuration, use the show interface dei-honor [interface slot/
port | linecard number port-set number] in EXEC Privilege mode.
Dell#show interface dei-honor
Default Drop precedence: Green
Interface CFI/DEI Drop precedence
---------------------------------------
Gi 0/1 0 Green
Gi 0/1 1 Yellow
Gi 8/9 1 Red
Gi 8/40 0 Yellow
Marking Egress Packets with a DEI Value
On egress, you can set the DEI value according to a different mapping than ingress.
For ingress information, refer to Honoring the Incoming DEI Value.
To mark egress packets, use the following command.
• Set the DEI value on egress according to the color currently assigned to the packet.
INTERFACE mode
dei mark {green | yellow} {0 | 1}
834
Service Provider Bridging
