Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.7 - Page 694

Default Configuration The default port priority value is 1. Command Mode Interface Configuration (Ethernet) mode Interface Range mode User Guidelines Per IEEE 802.1AX-2008 Section 5.6, ports are selected for aggregation by each switch based upon the port priority assigned by the switch with the higher system priority, starting with the highest priority port of the switch with the higher switch priority, and working downward through the ordered list of port priority values for the ports. The port priority of each port is a four octet binary number, formed by using the configured port priority as the two most significant octets and the port number as the two least significant octets. For any given set of ports, the port with the numerically lower value of port priority has the higher priority. The selection algorithm is reapplied upon changes in the membership of the port channel (for example, if a link fails, or if a new link joins the group) and any subsequent changes to the set of active links are made according to the above algorithm. Example The following example configures the priority value for port 1/0/8 to 247. console(config)#interface gigabitethernet 1/0/8 console(config-if-Gi1/0/8)#lacp port-priority 247 lacp system-priority Use the lacp system-priority command in Global Configuration mode to configure the Link Aggregation system priority. To reset to default, use the no form of this command. Syntax lacp system-priority value Layer 2 Switching Commands 694