With this feature, Arista 7050 and 7050X series of switches can now decapsulate IP in IP tunneled packets. When IP in IP decapsulation is configured, incoming packets with an outer IP header having IpProto=4 (IP in IP) and IpDest matching the one configured will be decapsulated, meaning that the outer IP header will be removed from the packet and all subsequent forwarding decisions will be based on the inner IP header.

This feature allows users to preserve IP TTL and MPLS EXP (also known as TC) value on MPLS routers, as well as add a user-specified TTL/EXP value when pushing new MPLS labels in pipe mode.