This object displays the MAC-in-MAC capabilities with respect to
certain fields. The following values may be supported:
reEncapsulation: Support for configuring re-encapsulation (denoted
by h3cMinmVsiReEncapsulation).
uplink: Support for configuring uplink (denoted
by h3cMinmUplinkTable).
vsiShareConnection: It indicates that connection entry is shared in
all VSIs. h3cVsiIndex is meaningless and must
be value 1 in h3cMinmConnectionTable.