H3C Technologies H3C SR8800 - Manual (Page 17)

5
Step Command Remarks
1. Enter system view. system-view N/A
2. Display the routes from
source to destination.
• For an IPv4 network:
tracert [ -a source-ip | -f first-ttl | -m
max-ttl | -p port | -q packet-number
| -vpn-instance vpn-instance-name |
-w timeout ] * host
• For an IPv6 network:
tracert ipv6 [ -f first-ttl | -m max-ttl |
-p port | -q packet-number |
-vpn-instance vpn-instance-name |
-w timeout ] * host
Use either approach.
Available in any view.
NOTE:
For more information about the tracert lsp command, see MPLS Command Reference.
System debugging
Introduction to system debugging
The router provides various debugging functions. For the majority of protocols and features supported,
the system provides corresponding debugging information to help users diagnose errors.
The following two switches control the display of debugging information:
• Protocol debugging switch—Controls protocol-specific debugging information.
• Screen output switch—Controls whether to display the debugging information on a certain screen.
As Figure 3 illustrates, assume the router can provide debugging for the three modules 1, 2, and 3. The
debugging information is output on a terminal only when both the protocol debugging switch and the
screen output switch are turned on.
Figure 3 The relationship between the protocol and screen output switch