A conceptual row of the ipv6TcpConnTable containing
information about a particular current TCP connection.
Each row of this table is transient, in that it ceases to
exist when (or soon after) the connection makes the transition
to the CLOSED state.
Note that conceptual rows in this table require an additional
index object compared to tcpConnTable, since IPv6 addresses
are not guaranteed to be unique on the managed node.
This entry is obsoleted by TCP-MIB::tcpConnectionEntry.