Sets the minimum interval, in milliseconds (note: this DC implementation changed the unit from the base standard's seconds to milliseconds), between successive regenerations of an LSP with the same LSP ID at this level, defaulting to 30ms. An admin lowers this to let the router react faster to legitimate repeated changes at this level, though isisSysMaxLSPGenInt (specified in whole seconds) still bounds how long the router can go without refreshing even if nothing changes.