To determine which device is currently set as your ping source:
On a Topology Browser Console, Notification Log Console, or Map Console, select the PE or CE object whose ping source you want to determine; for example, a PE named qa-mplspe3.smarts.com.
Right click the object and then select Server Tools.
On the Server Tools menu, select Who’s My Ping Source.
The results appear in the RemotePing - Who’s My Ping Source text box, as shown in Who’s My Ping Source text box. In this example, the ping source for qa-mplspe3.smarts.com is qa-gw6.smarts.com. In the text, “user admin” indicates that the user named “admin” is the ping source for the selected PE..