appn Cos Tg Max Connect Cost

1.3.6.1.2.1.34.4.1.5.10.10.1.4

During route computation, APPN determines the optimum route through a network in the following steps: - obtains the required route characteristics from the COS database using the mode name specified in the session request - determines all possible combinations of transmission groups and nodes that form a route to the destination database - the actual characteristics of the Nodes and TGs in these routes are compared against the COS tables that contain the required characteristics of the session. A weight is assigned based on how well the actual characteristics meet the required characteristics. Where there is no match between actual and required characteristics, the route containing the node or TG is excluded from further computation. - Each possible route is quantified by adding the weights assigned to the node and TGs in the route. The route with the lowest weight is the one used for the session. This attribute is part of the COS tables and specifies the maximum cost per connect time for a TG. It is represented by a number between 0 and 255 and is the relative cost of using a TG. The units for cost-per-connect time are installation-defined and are typically based on the applicable tariffs of the transmission facility being used by the TG. The cost per connect time values that a network administrator assigns to the TGs in a network should reflect the relative expense of each TG as compared to all other TGs in the network. A value of 0 means that there is no additional cost in connecting over the TG (as in the case of a non-switched facility).