5
Tracert configuration
To configure tracert:
To do… Use the command… Remarks
1. Enter system view.
system-view —
tracert [ -a source-ip | -f first-ttl | -m
max-ttl | -p port | -q packet-number | -
vpn-instance vpn-instance-name | -w
timeout ] * host
2. Display the routes from
source to destination.
tracert ipv6 [ -f first-ttl | -m max-ttl | -p
port | -q packet-number | -w timeout ]
* host
Required.
Use either approach.
The tracert command is
applicable in an IPv4 network;
the tracert ipv6 command is
applicable in an IPv6 network.
Available in any view.
NOTE:
For more information about the tracert lsp command, see MPLS basics commands
in the
MPLS
Command Reference
.
System debugging
The device provides various debugging functions. For the majority of protocols and features supported,
the system provides debugging information to help users diagnose errors.
The following switches control the display of debugging information:
• Protocol debugging switch, which controls protocol-specific debugging information.
• Screen output switch, which controls whether to display the debugging information on a certain
screen.
As Figure 3 illu
strates, assume the device can provide debugging for the three modules 1, 2, and 3. The
debugging information can only be output on a terminal when both the protocol debugging switch and
the screen output switch are turned on.
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