### Reliability and Performance

All 9600 Series IP Telephones respond to a ping or traceroute message sent from the DEFINITY®, MultiVantage, or Avaya Communication Manager switch or any other network source. The telephones do not originate a ping or traceroute. The 9600 Series IP Telephones offer and support “remote ping” and “remote traceroute.” The switch can instruct the telephone to originate a ping or a traceroute to a specified IP address. The telephone carries out that instruction and sends a message to the switch indicating the results. For more information, see your switch administration documentation.

If applicable, the telephones test whether the network Ethernet switch port supports IEEE 802.1D/q tagged frames by ARPing the router with a tagged frame. For more information, see VLAN Considerations. If your LAN environment includes Virtual LANs (VLANs), your router must respond to ARPs for VLAN tagging to work properly.