Sense code 80140001 received with session activation failure

Problem statement

Session activation failed with the sense code 80140001.

Common symptoms

An attempt to establish a session failed, and the sense code 80140001 (no route exists) was returned. This sense code indicates that no APPN route was found from the origin node to the destination node that meets the requirements of the requested Class of Service.

This can be due to any of several possible causes.

Probable cause 1

There is not an active APPN route between the origin and destination.

User response 1

Examine your network configuration to determine whether a valid path does exist. Use the DISPLAY TOPO command to verify that the topology database currently shows the links in the path as operational.

Probable cause 2

Although a valid APPN path exists, the characteristics of the nodes and links in the operational paths do not meet the requirements of the specified Class of Service.

User response 2

Check the following items:

Verify that the mode name specified on the request maps to the intended Class of Service.
Examine the LINEROW and NODEROW operands in the Class of Service definition to determine the allowable ranges for the link and node characteristics.
Use the DISPLAY TOPO command to view the characteristics of the nodes and TGs in the likely paths. Look for problems such as:
1. Nodes in the path are congested or have route resistance values outside the limits set by the Class of Service.
2. The CoS definition required secure links, but no path exists consisting exclusively of secure TGs.
3. High capacity (speed) was required by the CoS definition, but no path exists in which all of the links are fast enough to meet the specified minimum capacity.

Probable cause 3

The destination exists in a subarea network, or in another APPN network that is accessed through a subarea network, but paths acceptable to the specified Class of Service definition do not exist to all interchange nodes representing subarea entry points that can be used to reach the destination.

User response 3:

As specified in z/OS Communications Server: SNA Network Implementation Guide, if a destination can be reached by exiting one APPN network through two or more different interchange nodes, paths acceptable for the Class of Service to be used must be available to all of those possible exit interchange nodes. Verify this by examining the CoS definition and the characteristics of the paths to the possible exit interchange nodes.