The Unified Forwarding Table (UFT) is a group of memories that is shared between Layer2 and Layer3 lookup tables with capabilities for variable partitions. Rather than separate Layer2 and Layer3 lookup tables of fixed size, the UFT may be partitioned to support user-requested combinations of Layer2 and Layer3 lookup tables of varying sizes..

This feature introduces hardware forwarding support for IPv4-over-IPv4 GRE tunnel interfaces on selected Arista Switches. The GRE tunnel interface acts as a logical interface which performs the GRE encapsulation or decapsulation.

Hardware counter feature allows enabling counters for features using programmable hardware counter resources. This feature can be used to count the following feature specific counters.

This feature introduces hardware forwarding support for IPv4 over IPv4 GRE tunnel interfaces on selected Arista

An introduction to Nexthop-groups can be seen in the Nexthop-Group section of EOS. With this feature, IP packets matching a static Nexthop-Group route can be encapsulated with a GRE tunnel and forwarded.