The list of IPv6 interface entries.
This is the configuration table of logical
IPv6 interfaces at the network layer.
An IPv6 interface constitutes a logical network layer
attachment to a link ('circuit' in the Bay Networks
terminology) at the subnetwork/datalink layer,
i.e. the layer immediately below the network layer
including internet layer 'tunnels', such as tunnels
over IPv4 or IPv6 itself.
In Bay Network routers a subnetwork link (a.k.a. circuit)
is identified with a circuit id. One or more circuits can
be configured on a physical link. One or more IPv6 logical
interfaces can be configured on a given circuit.