To find the cause event of a path record of a service tunnel


1	Choose Manage→Service Tunnels from the NFM-P main menu. The Manage Service Tunnels form opens.
2	Specify a filter for the search, if required, and click on the Search button.
3	Select an entry and click on the Properties button. The Tunnel (Edit) form opens with the General tab displayed.
4	Click on the Navigate button and choose Historical Path Records from the contextual menu.
5	The Path and Prefix Monitoring form opens. Note: If there is no IP path monitor associated with the service tunnel, the IP Path Monitor (Create) form opens with the General tab displayed. Perform Step 6 to Step 10 of To monitor an SDP tunnel .
6	Click on the Search button. A list of path records appears.
7	Choose an entry and click on the Navigate button.
8	Choose Mapping View : Find Cause Events : Display from the contextual menu. The Mapping View : Find Cause Events : Display form opens with the list of cause events.
9	Choose an entry and click on the Properties button. The appropriate properties form for the event opens with the General tab displayed.
10	Depending on the event, different tab buttons appear. Click on the tab button to view information about the event.
11	Close the properties form.
12	Close the IP Path Monitor (Edit) form.
13	Close the Tunnel (Edit) form.
14	Close the Manage Service Tunnels form. End of steps

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