Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) - Manual (Page 1124)

1068 Brocade 6910 Ethernet Access Switch Configuration Guide
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Using the Trace Route Function
FIGURE 345 Pinging a Network Device
Using the Trace Route Function
Use the IP > General > Trace Route page to show the route packets take to a specified destination.
CLI References
• “traceroute” on page 600
Parameters
These parameters are displayed:
• Destination – IP address or alias of the host.
Command Usage
• Use the trace route function to determine the path taken to reach a specified destination.
• A trace terminates when the destination responds, when the maximum timeout (TTL) is
exceeded, or the maximum number of hops is exceeded.
• The trace route function first sends probe datagrams with the TTL value set at one. This causes
the first router to discard the datagram and return an error message. The trace function then
sends several probe messages at each subsequent TTL level and displays the round-trip time
for each message. Not all devices respond correctly to probes by returning an “ICMP port
unreachable” message. If the timer goes off before a response is returned, the trace function
prints a series of asterisks and the “Request Timed Out” message. A long sequence of these
messages, terminating only when the maximum timeout has been reached, may indicate this
problem with the target device.
Web Interface
To trace the route to another device on the network:
1. Click IP, General, Trace Route.
2. Specify the target device.