This read-only value reports the holding time, in the units advertised by the neighbor, that this router is currently using for the adjacency, as most recently updated from the neighbor's received IIH PDUs. It reflects the actual timeout the local router will honor before declaring the adjacency down if hellos stop arriving, incorporating whatever hello multiplier and timer the neighbor is using. An administrator seeing an unusually short csIsisISAdjHoldTimer on an otherwise stable link might investigate whether the neighbor's hello timer or multiplier was recently reconfigured to an aggressive value.