The removal of child next hop usage for aggregated Ethernet Interfaces and clients

Junos OS supports removal of child next hop usage for aggregated Ethernet Interfaces and clients. Removal of child next hop usage helps reduce the memory and CPU resources required to support aggregated Ethernet Interfaces and improves the overall system performance and scaling numbers. This feature is enabled by default if the network services mode on the router is configured to enhanced-mode. You can disable this feature by using the set chassis aggregated-devices disable-lag-enhanced. You must reboot the router for the configuration to take effect. Previously, each unicast next hop over aggregated Ethernet Interfaces resulted in creation of a number of children next hops as well. For an aggregated Ethernet Interface with 16 member links, addition of one unicast next hop over the aggregated Ethernet Interface results in installing total of 17 next hops. As a result, with aggregated Ethernet configuration, the number of next hops supported decreases in proportion to the number of aggregated Ethernet links.