Link aggregation of Ethernet interfaces is defined in the IEEE 802.3ad standard. The JUNOS implementation of 802.3ad balances traffic across the member links within an aggregated Ethernet bundle based on the Layer 3 information carried in the packet. This implementation uses the same load-balancing algorithm used for per-packet load balancing. For information about per-packet load balancing, see the JUNOS Routing Protocols Configuration Guide.
![]() |
Note: For information about configuring circuit cross-connects over aggregated Ethernet, see Examples: Configuring Switching Cross-Connects. |