The value of this object uniquely identifies the
interface on this remote network monitoring device
to which the associated filters are applied to allow
data into this channel. The interface identified by
a particular value of this object is the same
interface as identified by the same value of the
ifIndex object, defined in [4,6]. The filters in
this group are applied to all packets on the local
network segment attached to the identified
interface.
This object may not be modified if the associated
channelStatus object is equal to valid(1).