This is the row-status object for adding or deleting an entry in the nested filter group table, which combines references to other, already-defined filter groups into a single composite filter. Because a nested entry only makes sense if it actually points at valid, already-existing component filter groups, an admin building layered filter policy needs those referenced groups created and active first, following the same general dependency pattern seen throughout this MIB's other row-status objects. Building a composite 'Corporate-Access-Policy' nested filter group out of separately-defined network, protocol, and port filter groups would require each of those component groups to already exist and be active before this nested entry referencing them could be successfully activated.