A method and apparatus for use in an ad hoc network (100), comprising: a node (2) transmitting (s2) an extended allowable hold time value to a further node(1);the node (2) changing (s8) its transmission behaviour such that the further node (1) stops receiving transmission from the node (2) for an extended period, for example by pausing transmission (s8) at least in the direction of the further node (1);and the further node (1) treating (s10) the link (5) to the node (2) as intact during the extended allowable hold time. The transmitting (s2) of the extended allowable hold time value may be performed earlier than a next routine transmission of routine allowable hold time value would have been sent. The method may further comprise the node (2) being instructed (s6) to maintain topology information for an extended time.
