D-Link DGS-6600-48TS Configuration Guide - Page 161

Volume 3-Layer 2 Configurations / Chapter 15-Link Aggregation Link Aggregation Configuration Commands In the following example, the user creates channel group 3 and assigns Ethernet port 4.1 to 4.6 to the channel group: DGS-6600:2>enable DGS-6600:15#configure terminal DGS-6600:15(config)#interface range eth4.1-4.6 DGS-6600:15(config-if)#channel-group 3 mode on DGS-6600:15(config-if)#end Creating a Dynamic Port Channel Group In a dynamic port channel group, the candidate member ports are statically assigned, but the actual member ports are determined through the LACP protocol negotiation with the partner device. The user cannot specify the static member port in a dynamic port channel group. To create a dynamic port channel group, enter the interface mode for the member ports, and directly assign the channel group. When a channel group has its member ports assigned, the channel group is automatically created. When a port channel group has all its member ports removed, the port channel group will be automatically destroyed. When a group of ports is specified for a created dynamic port channel group, the LACP related attributes associated with these candidate ports must be explicitly assigned or automatically modified by the system needed for LACP protocol operation. 1) Active or Passive Mode The user must specify the port operated in active mode or passive mode. In active mode, the port will actively send LACPDU. In passive mode, the port will passively responds to the received LACPDU. At least one side of the link must be in active mode for both sides to exchange the information. 2) Actor Admin Key The system will automatically allocate a number and set the actor admin key of all candidate ports to this number. This key will be carried in the BPDU transmitted to the partner port, and become the partner operation key of the partner port. 3) System Priority and System ID The system MAC address is used as the system ID. The LACP system-priority determines the switch that controls the port priority. If both local switch and remote switch have the same system priority, system ID will be checked. Both LACP system priority & system ID will be conveyed in the BPDU transmitted to the partner port, and become the partner system ID & priority of the partner port. 4) Port Priority and Port ID The port priority determines which ports can join a port-channel and which ports are put in backup mode. When two ports have the same port priority, port number will be checked. They will be conveyed in the BPDU transmitted to the partner port. and become the partner priority vector of the partner port. Use the following commands to create and display the dynamic port channel group entries on the Switch: Command channel-group CHANNEL-NO mode {on | active | passive} lacp system-priority PRIORITY Explanation Specifies the interface as a candidate member port of the specified dynamic port channel group. Configures the system priority. DGS-6600 Configuration Guide 161