L2-Aware NAT bypass

L2-Aware NAT bypass refers to the functionality where the entire or partial traffic from a L2-Aware-NAT-enabled ESM1 subscriber circumvents local NAT function. There are three types of bypass supported for L2-Aware NAT in the SR OS:

• full ESM host bypass

• selective ESM host bypass based on an IP filter match

• the entire ESM subscriber bypass because of ISA/ESA failure. This type of bypass is described in NAT redundancy.