Configuring Aggregated Devices

JUNOS software supports the aggregation of physical devices into defined virtual links, such as the link aggregation of Ethernet interfaces defined by the IEEE 802.3ad standard. To define the virtual links, you need to specify the associations between physical and logical devices within the [edit interfaces] hierarchy, and assign the correct number of logical devices by including the device-count statement at the [edit chassis aggregated-devices ethernet] and [edit chassis aggregated-devices sonet] hierarchy levels:

[edit chassis]

aggregated-devices {

    ethernet {

        device-count number;

    }

    sonet {

        device-count number;

    }

}

The maximum number of Ethernet logical interface you can configure is 128. The aggregated Ethernet interfaces are numbered from ae0 through ae127. The maximum number of SONET/SDH logical interfaces is 16. The aggregated SONET/SDH interfaces are numbered from as0 through as15.

For more information on physical and logical interfaces using aggregated links, including sample configurations, see the JUNOS Network Interfaces and Class of Service Configuration Guide.