10-14 
undo ip unreachables 
View 
System view 
Default Level 
2: System level 
Parameters 
None 
Description 
Use the ip unreachables enable command to enable the sending of ICMP destination unreachable 
packets.  
Use the undo ip unreachables command to disable sending ICMP destination unreachable packets. 
Sending ICMP destination unreachable packets is disabled by default. 
Examples 
# Enable sending ICMP destination unreachable packets. 
<Sysname> system-view 
[Sysname] ip unreachables enable 
reset ip statistics 
Syntax 
reset ip statistics 
View 
User view 
Default Level 
2: System level 
Parameters 
None 
Description 
Use the reset ip statistics command to clear statistics of IP packets. 
Related commands: display ip interface (IP Addressing in the Layer 3 – IP Services Command 
Reference); display ip statistics (IP Performance Optimization in the Layer 3 – IP Services Command 
Reference). 
Examples 
# Clear statistics of IP packets. 
<Sysname> reset ip statistics 
reset tcp statistics 
Syntax 
reset tcp statistics