System Debugging Commands; Debugging - H3C S7500E Series Command Reference Manual

Usage guidelines
Output information of the tracert ipv6 command includes IPv6 addresses of all the Layer 3 devices the
packets traverse from source to destination. Asterisks (* * *) are displayed if the device cannot reply with
an ICMP error message (probably because the destination is unreachable or sending ICMP
timeout/destination unreachable packets is disabled).
To abort the tracert operation during the execution of the command, press Ctrl+C.
Examples
# View the path the packets traverse from source to destination with IPv6 address 2001::1.
<Sysname> tracert ipv6 2001::1
traceroute to 2001::1
1 2001::1 3 ms <1 ms 19 ms
# View the path the packets traverse from source to destination with IPv6 address 2001::1 in VPN 1.
<Sysname> tracert ipv6 –vpn-instance vpn1 2001::1
traceroute to 2001::1
1 2001::1 3 ms <1 ms 19 ms
For description on the fields in the above output, see

System debugging commands

debugging

Use debugging to enable the debugging of a specific module.
Use undo debugging to disable the debugging of a specific module.
Syntax
debugging { all [ timeout time ] | module-name [ option ] }
undo debugging { all | module-name [ option ] }
Default
Debugging functions for all modules are disabled.
Views
User view
Default command level
3: System level
Parameters
all: All debugging functions.
timeout time: Specifies the timeout time for the debugging all command. When all debugging is enabled,
the system automatically executes the undo debugging all command after the time. The value ranges
from 1 to 1440, in minutes.
module-name: Module name, such as arp or device. To display the current module name, use the
debugging ? command.
30 hops max,60 bytes packet, press CTRL_C to break
30 hops max,60 bytes packet, press CTRL_C to break
10
Table 2.