The SVC Route table contains the definitions used to route all switched virtual circuits. A route entry consists of the called address that activates the route, and a destination. Four categories of destinations are available, providing four possible route types. - 1) Route to a specific upper SAP destination. - 2) Route to a specific lower SAP destination. This type of route can be used in place of route type 3, when route balancing is not required. This avoids the need to configure a logical link containing only one SAP entry, which is ideal for LAPB routing when no load balancing is required. This type of route is also ideal when targeting a specific data link connection (identified by the CES) on a LAPD link. 3) Route to a logical link destination. A logical link is a grouping of one or more lower SAPs for the purpose of route balancing. 4) Route to a hunt group destination. A hunt group consists of one or more SAPs (upper or lower) which are grouped for the purpose of route hunting.