Managing NCPs › Monitor Virtual Route Information

Monitor Virtual Route Information

Virtual routes are used to connect two subarea nodes. By monitoring these routes, you can detect failures and congestion on the connection.

In SNA terms, a virtual route can be a logical connection between two subarea nodes or a logical connection in a particular subarea node for the purpose of intranode sessions.

The virtual route between subarea nodes does the following:

• Places a transmission priority on the explicit route between nodes
• Applies sequential numbering to path information units (PIUs) to ensure data integrity
• Uses virtual route pacing to ensure a controlled flow of PIUs along the virtual route

NCPView lets you list all of the virtual routes and view virtual routing and flow control information for each route on the list.

List Virtual Route Information

By listing and browsing virtual route information, you can monitor the state of the route and whether or not there is congestion on the route.

To display a list of networks and their virtual routes

1. Enter VR next to an NCP entry on the NCP monitor.

   The NCPView : Virtual Route List for the selected NCP appears.

   Note: For information about the fields displayed on this panel, press F1 (Help).

Browse Virtual Route Information

To access detailed information about the virtual routes for a specific network

1. Enter S or B next to the required network on the NCPView : Virtual Route List.

   The NCPView : Virtual Route Details panel for the selected network appears.

   Note: For information about the fields displayed on this panel, press F1 (Help).