The Network connectivity page can be used for troubleshooting issues that arise because of problems in the network between the IP VCR and a remote video conferencing device being called (or a device from which a user is attempting to call the IP VCR).
The page enables you to attempt to 'ping' another device from the IP VCR's web interface and perform a 'traceroute' of the network path to that device. The results show whether or not you have network connectivity between the IP VCR and another device. You can see from which port the IP VCR will route to that address. For a hostname, the IP address to which it has been resolved is displayed.
To test connectivity with a remote device, go to. In the text box, enter the IP address or hostname of the device to which you want to test connectivity and click .
For each successful 'ping', the time taken for the ICMP echo packet to reach the host and for the reply packet to return to the IP VCR is displayed in milliseconds (the round trip time). The TTL (Time To Live) value on the echo reply is also displayed.
For each intermediate host (typically routers) on the route between the IP VCR and the remote device, the host's IP address and the time taken to receive a response from that host is shown. Not all devices will respond to the messages sent by the IP VCR to analyse the route; routing entries for non-responding devices is shown as <unknown>. Some devices are known to send invalid ICMP response packets (e.g. with invalid ICMP checksums); these responses are not recognized by the IP VCR and therefore these hosts' entries are also shown as <unknown>.
|(c) Copyright TANDBERG 2003-2011, License information|