Description: A single conceptual row providing queue statistics data.

On Arista devices equipped with the XGS chipset, packet forwarding decisions are done by XGS, which is also referred as 'Forwarding ASIC' or 'Forwarding Element'.

In some situations, the packets cannot be fully handled by the Forwarding Element. These need to be processed by Arista EOS. In these situations, the Forwarding Element will send the packet to the CPU. Some examples of such packets:

a. Protocol packets like BGP, LACP that need to be processed by EOS. b. Packets that cannot be forwarded in hardware like IP packets with options information. c. Packets that cannot be forwarded in hardware due to incomplete information (for example, missing ARP data).

The Forwarding Element to CPU connection appears as another logical interface in hardware. This logical interface has several queues associated with it. Packets will end up in one of the finite number of queues based on configuration.

Some Arista devices ship with multiple such Forwarding Elements (XGS chip). Each Forwarding Element has an independent interface that represents the CPU with its own set of queues.

This single conceptual row identifies queue statistics that correspond to a single Forwarding Element and a single CPU queue.