Specifying an Aggregated Interface

The M Series, MX Series, and T Series routers support aggregated interfaces.

You specify aggregated interfaces by assigning a number for the aggregated interface. For aggregated Ethernet interfaces, configure aex as in the following example:

For aggregated SONET/SDH interfaces, configure asx as in the following example:

The maximum number of aggregated Ethernet interfaces is 128, and the assigned number can be from 0 through 127. The maximum number of aggregated Ethernet interfaces (LAG bundles) on all MX Series routers is 480, and the assigned number can be from 0 through 479. The maximum number of aggregated SONET interfaces is 16, and the assigned number can be from 0 through 15. You should not mix SONET and SDH modes on the same aggregated interface.

Note: SONET/SDH aggregation is proprietary to the Junos OS and might not work with other software.

If you are configuring VLANs for aggregated Ethernet interfaces, you must include the vlan-tagging statement at the [edit interfaces aex] hierarchy level to complete the association.

For more information, see Aggregated Ethernet Interfaces Overview and Configuring Aggregated SONET/SDH Interfaces.