Dell PowerConnect B-RX BigIron RX Series Configuration Guide v02.7.03 - Page 315

Deploying a LAG 8 Configuring an LACP timeout In a dynamic or keep-alive LAG, a port's timeout can be configured as short or long. Once a port is configured with a timeout option, it will remain in that timeout mode whether it's up or down, or part of a trunk or not. All the ports in a trunk should have the same timeout mode. This is checked when the LAG is enabled on ports. To configure a port for a short LACP timeout use the following command. BigIron RX(config)# lag blue dynamic BigIron RX(config-lag-blue)# lacp-timeout short Syntax: [no] lacp-timeout [long | short] The long parameter configures the port for the long timeout mode. The short parameter configures the port for the short timeout mode. NOTE This configuration is only applicable for configuration of a dynamic or keep-alive LAGs. Deploying a LAG After configuring a LAG, you must explicitly enable it before it takes begins aggregating traffic. This is accomplished using the deploy command within the LAG configuration. Once the deploy command is executed, the LAG is in the aggregating mode. Only the primary port within the LAG is available at the individual interface level. Any configuration performed on the primary port applies to all ports within the LAG. The running configuration will no longer display deployed LAG ports other than the primary port. To deploy a LAG, at least one port must be in the LAG and the primary port must be specified for non keep-alive LAGs. Once a non keep-alive LAG is deployed, a trunk is formed. If there is only one port in the LAG, a single port trunk is formed. For a dynamic LAG, LACP is stared for each LAG port. For a keep-alive LAG, no trunk is formed and LACP is started on the LAG port. You can deploy a LAG as shown in the following for the "blue" LAG. BigIron RX(config)# lag blue static BigIron RX(config-lag-blue)# deploy Syntax: [no] deploy [ forced | passive ] When the deploy command is executed: For a static and dynamic LAGs, the current trunk veto mechanism is invoked to make sure the trunk can be formed. If the trunk is not vetoed, a trunk is formed with all the ports in the LAG. For dynamic LAGs, LACP is activated on all LAG ports. When activating LACP, use active mode if passive is not specified; otherwise, use passive mode. For a keep-alive LAGs, no trunk is formed, and LACP is started on the LAG port. Once the deploy command is issued, all LAG ports will behave like a single port. If the no deploy command is executed, the trunk is removed. For dynamic LAGs, LACP is de-activated on all of the LAG ports. BigIron RX Series Configuration Guide 243 53-1001986-01