Specifications

traceroute
Chapter 8
IP Services Commands
180
l ttl—30
l wait—5000
Access All.
Usage To stop a traceroute command that is in progress, press Ctrl+C.
Examples The following example traces the route to host server1:
PROMPT# traceroute server1
traceroute to server1.example.com (192.168.22.7), 30 hops max, 38 byte packets
1 engineering-1.example.com (192.168.192.206) 2 ms 1 ms 1 ms
2 engineering-2.example.com (192.168.196.204) 2 ms 3 ms 2 ms
3 gateway_a.example.com (192.168.1.201) 6 ms 3 ms 3 ms
4 server1.example.com (192.168.22.7) 3 ms * 2 ms
The first row of the display indicates the target host, the maximum number of
hops, and the packet size. Each numbered row displays information about one
hop. The rows are displayed in the order that the hops occur, beginning with the
hop closest to the UNIVERGE WL Controller.
The row for a hop lists the total time in milliseconds for each ICMP packet to
reach the router or host, plus the time for the ICMP Time Exceeded message to
return to the host.
An exclamation point (!) following any of these values indicates that the Port
Unreachable message returned by the destination has a maximum hop count of 0
or 1. This can occur if the destination uses the maximum hop count value from the
arriving packet as the maximum hop count in its ICMP reply. The reply does not
arrive at the source until the destination receives a traceroute packet with a
maximum hop count equal to the number of hops between the source and
destination.
An asterisk (*) indicates that the timeout period expired before UNIVERGE WL
Control System received a Time Exceeded message for the packet.
If Traceroute receives an ICMP error message other than a Time Exceeded or Port
Unreachable message, UNIVERGE WL Control System displays one of the error
codes described in Table 24 instead of displaying the round-trip time or an
asterisk (*).
Table 24 describes the traceroute error messages.