3Com 5500G-EI Command Reference Guide - Page 299

QoS Configuration Commands List 299 Parameter priority-level: Specifies the priority level of the port, ranging from 0 to 7. Description Use the priority command to configure the priority of Ethernet port. Use the undo priority command to restore the default port priority. By default, the priority level of the port is 0. The Switch replaces the 802.1p priority carried by a packet with the port priority that is defined. Every port on the Switch supports eight packet egress queues. The Switch puts the packets into different egress queues according to their priorities. When transmitting a packet, the Switch replaces the packet's 802.1p priority with the priority of the received port, according to which the packet will be put into the corresponding egress queue. Example Set the priority of GigabitEthernet1/0/1 port to 7. system-view System View: return to User View with Ctrl+Z [SW5500]interface gigabitethernet 1/0/1 [SW5500-GigabitEthernet1/0/1]priority 7 priority trust Syntax priority trust undo priority View Ethernet Port View Parameter None Description Use the priority trust command to configure the system to trust the packet's 802.1p priority and not replace the 802.1p priorities carried by the packets with the port priority. Use undo priority command to configure the system not to trust the packet 802.1p priority. By default, the system replaces the 802.1p priority carried by a packet with the port priority. For the related command, see priority. Example Configure the system to trust the packet 802.1p priority and not replace the 802.1p priorities carried by the packets with the port priority. system-view System View: return to User View with Ctrl+Z [SW5500]interface gigabitethernet 1/0/1