This KB provides information about how to provide link protection for aggregated Ethernet Interfaces.

You can configure link protection for aggregated Ethernet interfaces to provide Quality of Service on the links during operation.

On aggregated Ethernet interfaces, you designate a primary and backup link to support link protection. Egress traffic passes only through the designated primary link (for transit traffic and locally generated traffic on the router). When the primary link fails, traffic is routed through the backup link.

You can control designation as follows:

1-Specify the number of aggregated Ethernet bundles you want on your device.

set chassis aggregated-devices ethernet device-count number

2- Configure the primary interface:

set interfaces xe-0/0/1 gigether-options 802.3ad ae0

set interfaces xe-0/0/1 gigether-options 802.3ad ae0 primary

3-Configure the backup logical interface:

set interfaces xe-0/0/2 gigether-options 802.3ad ae0

set interfaces xe-0/0/1 gigether-options 802.3ad ae0 backup

4-Configure the Aggregated link with protection mode:

set interfaces aex0 aggregated-ether-options link-protection

Note:

Egress traffic is not automatically routed back to the primary link when the primary link is reestablished. Instead, you manually control when traffic should be diverted back to the primary link from the designated backup link:

>request interface revert ae0