Managing an Aggregate Line Description

After an aggregate line description is created, it can be used the same way as a non-aggregate line description.

For example, the Add TCP/IP Interface (ADDTCPIFC) command can be used to create an IP interface to send traffic through the new line description.

A non-aggregate line description cannot be changed to an aggregate line description, nor can an aggregate be changed later into a non-aggregate. The AGGPCY and AGGRSCL parameters can be changed by the Change Line Desc (Ethernet) (CHGLINETH) command, but the line description must be varied off.

When the line description is varied on, the configuration is verified and all of the resources are activated and establish link with the partner. If the system detects any configuration errors, the line description does not vary on successfully. Any ports that fail to establish link when varying on are not aggregated until the line description is varied off and back on.

After the line description is varied on, the aggregation status of each resource can be viewed on a new panel from the Display Line Description (DSPLIND) command. The DSPLIND command can be used to monitor for any links that are not operational.

On systems with support for link aggregation, resources with type 6B26 are displayed on the Work with Communication Resources panel. This panel can be displayed by using the Work with Hardware Resources (WRKHDWRSC) command and the Type (TYPE) parameter of *CMN. When an aggregate line description is varied on for the first time, a new Comm Port resource with type 6B26 might be added. When an aggregate line description is deleted, one of the Comm Port resources might be removed. All resources with type 6B26 are invalid for configuration by line descriptions or for LAN console or remote support. When an aggregate line description is deleted, a resource with type 6B26 might no longer be displayed on the Work with Communication Resources panel.