VBrick Systems VB4000, VB6000, VB5000 manual Diagnostics Network Tests Trace Route Test

in the top portion of the screen. If the test is interrupted by pressing the Stop button, the results of the test prior to termination will be displayed.

Address Mode	Select IP Address or Host Name and enter a corresponding value.
Number of Packets	Number of packets to send for the test (default = 4).
PDU	Protocol Description Unit size of packets, in bytes (default = 64).
Transmit Interval	In seconds (default is sending the packets in 1 second intervals).
Transmit Timeout	The length of time, in seconds, before the test times out, in the
	event the target device fails to respond.

Diagnostics: Network Tests > Trace Route Test

The Internet is a large and complex aggregation of network hardware, connected together by gateways. Tracking the route packets follow or finding a gateway where the packets are being discarded is difficult. The Trace Route test attempts to trace the route an IP packet follows to a specified Internet host. This test utilizes the Time To Live (TTL) field in the IP header to allow intermediate nodes to be "discovered" via Internet Control Message Protocol (ICMP). Intermediate hops are discovered by launching probe packets with a small TTL and then listening for an ICMP Time Exceeded reply from a gateway. Use Refresh, Start/Stop, and Default to run the test.

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