PWE3 Ping Test

An NQA pseudowire emulation edge-to-edge (PWE3) ping test checks the reachability of MPLS-based pseudowire (PWs).

Figure 1 shows the process of a PWE3 ping test:

1. The source selects a specified PW according to the configured PW ID and sends it an MPLS Echo Request packet.

2. The remote PE responds with an MPLS Echo Reply packet whose destination address is the IP address of the interface that sent the MPLS Echo Request packet.

3. The source forwards data using the PW only when it receives an MPLS Echo Reply packet from the remote PE.

4. The source receives the MPLS Echo Reply packet and calculates the time taken for communication between the source and the destination.

Figure 1 Network for PWE3 ping test

PWE3 ping test results and historical records are collected in test instances. You can run commands to view the test results and historical records.