Figure 194 Creating dynamic link aggregation group 1

Configuration guidelines

When you configure a link aggregation group, follow these guidelines:

•In an aggregation group, a Selected port must have the same port attributes and class-two configurations as the reference port. To keep these configurations consistent, you should configure the port manually.

•Choose a reference port from the member ports that are in up state and with the same class-two configurations as the aggregate interface. The candidate ports are sorted in the following order:

{Full duplex/high speed

{Full duplex/low speed

{Half duplex/high speed

{half duplex/low speed

If two ports have the same duplex mode/speed pair, the one with the lower port number is chosen.

•Port attribute configuration includes the configuration of the port rate, duplex mode, and link state. For more information about class-two configurations, see "Configuration classes."

•To guarantee a successful static aggregation, make sure the ports at the two ends of each link to be aggregated are in the same aggregation state. To guarantee a successful dynamic aggregation, make sure the peer ports of the ports aggregated at one end are also aggregated. The two ends can automatically negotiate the aggregation state of each member port.

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