Dell PowerSwitch S4820T 9.50.1 Configuration Guide for the S4820T System - Page 847

• 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 an Dell Networking OS drop precedence. Precedence can have one of three colors. Precedence Green Yellow Red Description High-priority packets that are the least preferred to be dropped. Lower-priority packets that are treated as best-effort. Lowest-priority packets that are always dropped (regardless of congestion status). • Honor the incoming DEI value by mapping it to an 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} Service Provider Bridging 847