R3204P16-HP Load Balancing Module System Maintenance Command Reference-6PW101
5
tracert
Syntax
tracert [ -a source-ip | -f first-ttl | -m max-ttl | -p port | -q packet-number | -vpn-instance
vpn-instance-name | -w timeout ] * host
View
Any view
Default level
0: Visit level
Parameters
-a source-ip: Specifies the source IP address of a tracert packet. It must be a legal IP address configured
on the device. If this parameter is not provided, the source IP address of an ICMP echo request is the
primary IP address of the outbound interface of the tracert packet.
-f first-ttl: Specifies the first TTL, or, the allowed number of hops for the first packet. It ranges from 1 to 255
and defaults to 1, and must be less than the maximum TTL.
-m max-ttl: Specifies the maximum TTL, or, the maximum allowed number of hops for a packet. It ranges
from 1 to 255 and defaults to 30, and must be greater than the first TTL.
-p port: Specifies the UDP port number of the destination, which ranges from 1 to 65535 and defaults to
33434. You do not need to modify this parameter.
-q packet-number: Specifies the number of probe packets sent each time, which ranges from 1 to 65535
and defaults to 3.
-w timeout: Specifies the timeout time of the reply packet of a probe packet, which ranges from 1 to
65535 milliseconds and defaults to 5000 milliseconds.
host: IP address or host name (a string of 1 to 255 characters) of the destination.
Description
Use the tracert command to trace the path the packets traverse from source to destination.
After having identified network failure with the ping command, use the tracert command to determine the
failed node(s).
Output information of the tracert command includes IP addresses of all the Layer 3 devices the packets
traverse from source to destination. If a device times out, "* * *" will be displayed.
To abort the tracert operation during the execution of the command, press Ctrl+C.
Examples
# Display the path the packets traverse from source to destination with an IP address of 1.1.2.2.
<Sysname> system-view
[Sysname] ip ttl-expires enable
[Sysname] ip unreachables enable
[Sysname] tracert 1.1.2.2
traceroute to 1.1.2.2(1.1.2.2) 30 hops max,40 bytes packet, press CTRL_C to break
1 1.1.1.2 673 ms 425 ms 30 ms
2 1.1.2.2 580 ms 470 ms 80 ms