Dell PowerConnect 5324 Command Line Interface Guide - Page 315

• source ip-address-One of the interface addresses of the device to use as a source address for the probes. The device will normally pick what it feels is the best source address to use. (Range: Valid IP Address) • tos tos-The Type-Of-Service byte in the IP Header of the packet. (Range: 0-255) Default Configuration size packet_size-The default is 40 bytes. ttl max-ttl-The default is 30. count packet_count-The default count is 3. timeout time_out-The default is 6 seconds. Command Mode User EXEC mode User Guidelines • The traceroute command works by taking advantage of the error messages generated by a device when a datagram exceeds its time-to-live (TTL) value. • The traceroute command starts by sending probe datagrams with a TTL value of one. This causes the first device to discard the probe datagram and send back an error message. The traceroute command sends several probes at each TTL level and displays the round-trip time for each. • The traceroute command sends out one probe at a time. Each outgoing packet may result in one or two error messages. A "time exceeded" error message indicates that an intermediate device has seen and discarded the probe. A "destination unreachable" error message indicates that the destination node has received the probe and discarded it because it could not deliver the packet. If the timer goes off before a response comes in, the traceroute command prints an asterisk (*). • The traceroute command terminates when the destination responds, when the maximum TTL is exceeded, or when the user interrupts the trace with Esc. System Management 315