Nortel CallPilot User Manual page 36

36 Chapter 4 Using Windows online diagnostic tools
How tracert works
The tracert utility follows several steps to complete its task:
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Tracert syntax
The tracert command uses the following syntax:
tracert [-d] [-h maximum_hops] [-j host_list]
Tracert parameters
The following table shows the tracert parameters.
Table 10
Tracert parameters
Parameter
-d
-h maximum_hops
-j host-list
-w timeout
target_name
To run the tracert command from Windows
Step
1
Copyright © 2007, Nortel Networks
.
Tracert sends Internet Control Message Protocol (ICMP) echo packets
with varying Time-To-Live (TTL) values to the destination.
Each router along the path must decrement the TTL on a packet by at
least 1 before forwarding it, so the TTL is effectively a hop count.
After the TTL on a packet reaches 0, the router sends back an ICMP
Time Exceeded message to the source system.
Tracert determines the route by sending the first echo packet with a TTL
of 1, and incrementing the TTL by 1 on each subsequent transmission
until the target responds, or the maximum TTL is reached.
Tracert then examines the ICMP Time Exceeded messages sent back
by intermediate routers.
[-w timeout] [target_name]
Action
Click Start → Programs → Accessories → Command Prompt.
Result: The Command Prompt window appears.
Nortel CallPilot
600r Server Maintenance and Diagnostics
NN44200-703 01.04 Standard
5.0 25 April 2007
Description
Specifies not to resolve addresses to
hostnames.
Specifies the maximum number of hops to
search for the target.
Specifies a loose source route along the host
list.
Waits the number of milliseconds specified by
the timeout for each reply.
Specifies the name of the target host.