A zone index identifies an instance of a specific scope uniquely within the system.The zone index is used to associate unambiguously an IPv6 address to a specific zone. Following are the changes that has been done in fsMIIpv6IfScopeZoneMapTable 1) The Zone-Index which is of type InetZoneIndex in stdipvx.mib is changed to DisplayString for user convenience.As the user is aware of the zones by the scope-zone name rather than the index (i.e Linklocal1 or sitelocal1,scope61,scope71) it has been changed to DisplayString. But the index associated with the scope-zone is displayed by ipv6ScopeZoneIndexTable. 2) The InetZoneIndex definition in INET-ADDRESS-MIB says that the zone-index will typically be the interface index for link-local address, but as per the design the Zone-Index is taken as a free flowing number starting from the value 1, hence the value of ipv6ScopeZoneIndexLinkLocal shall not be complaint with InetZoneIndex definition. 3) It is also mentioned that the zone-index value of 0 refers to the default zone. But the design implements the default scope-zone index for every scope by the fsipv6ScopeMemberEntry mib table. Hence the default-zone index of value 0 is also not supported 4) The scope-zone index that are not configured on an interface shall take a alpha numeric value of invalid in FsMIIpv6IfScopeZoneMapEntry and -1 for the index value in ipv6ScopeZoneIndexTable.