Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.100.0 - Page 266

dot1p Value in the Incoming Frame 6 7 Priority Group Assignment LAN LAN The following describes the priority group-bandwidth assignment. Priority Group IPC SAN LAN Bandwidth Assignment 5% 50% 45% PFC and ETS Configuration Command Examples The following examples show PFC and ETS configuration commands to manage your data center traffic. 1 Enabling DCB Dell(conf)#dcb enable 2 Configure DCB map and enable PFC, and ETS Dell(conf)# service-class dynamic dot1p Or Dell(conf)# interface tengigabitethernet 1/1 Dell(conf-if-te-1/1)# service-class dynamic dot1p 3 Apply DCB map to relevant interface dcb-map test priority-group 1 bandwidth 50 pfc on priority-group 2 bandwidth 45 pfc off priority group 3 bandwidth 5 pfc on priority-pgid 2 2 2 1 3 2 2 2 Example of Applying DCB Map to an Interface Dell(conf)# int tengigabitethernet 1/1 Dell(conf-if-te-1/1)# dcb-map test QoS dot1p Traffic Classification and Queue Assignment The following section describes QoS dot1P traffic classification and assignments. DCB supports PFC, ETS, and DCBx to handle converged Ethernet traffic that is assigned to an egress queue according to the following QoS methods: Honor dot1p You can honor dot1p priorities in ingress traffic at the port or global switch level (refer to Default dot1p to Queue Mapping) using the service-class dynamic dot1p command in INTERFACE configuration mode. Layer 2 class maps You can use dot1p priorities to classify traffic in a class map and apply a service policy to an ingress port to map traffic to egress queues. 266 Data Center Bridging (DCB)