VBrick Systems VBRICK APPLIANCE VB6000 - Manual (Page 124)

114 © 2008 VBrick Systems, Inc.
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.
Address Mode IP Address or Host name. Cannot be blank even if the Address
mode is set to Host
• IP Address – Enter IP Address, if desired,
• Host Name – Enter Host Name.
Number of Packets Number of packets to send for the test (default is 4).
PDU Protocol Description Unit size of packets, in bytes (default is 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.
Operational State The currently selected test.
Address Mode Check the box indicating whether the target address is an IP
Address or Host Name.
IP Address or Host
Name Enter the information in the corresponding box.