The tmnxWlanGwSoftGreIfTable contains objects to configure
Soft GRE Group-Interfaces.
Entries in this table are created and destroyed by the system.
The system automatically creates an entry in this table for each
entry in the TIMETRA-SERV-MIB::iesIfTable where the value of iesIfType
is equal to 'group' and the value of iesIfGroupInterfaceType is equal to 'softGre'.
Deletion of such a row in the iesIfTable results in the same fate
for the corresponding row in this table.