H3C Technologies H3C SecBlade LB Cards - Manual (Page 112)

103
Configuration procedure
To enable sending ICMP error packets:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable sending ICMP
error packets.
• Enable sending ICMP redirect packets:
ip redirects enable
• Enable sending ICMP timeout packets:
ip ttl-expires enable
• Enable sending ICMP destination
unreachable packets:
ip unreachables enable
Disabled by default.
When sending ICMP timeout
packets is disabled, the device
does not send "TTL timeout" ICMP
error packets. However,
"reassembly timeout" error
packets are sent normally.
Displaying and maintaining IP performance
optimization
Task Command Remarks
Display TCP connection statistics.
display tcp statistics [ | { begin | exclude |
include } regular-expression ]
Available in any view.
Display UDP statistics.
display udp statistics [ | { begin | exclude |
include } regular-expression ]
Available in any view.
Display statistics of IP packets.
display ip statistics [ | { begin | exclude |
include } regular-expression ]
Available in any view.
Display ICMP statistics.
display icmp statistics [ | { begin | exclude |
include } regular-expression ]
Available in any view.
Display socket information.
display ip socket [ socktype sock-type ] [ task-id
socket-id ] [ | { begin | exclude | include }
regular-expression ]
Available in any view.
Display IP virtual fragment
reassembly information on the
security zones.
display ip virtual-reassembly vd vd-name
[ zone zone-name ] [ | { begin | exclude |
include } regular-expression ]
Available in any view.
Clear statistics of IP packets. reset ip statistics
Available in user
view.
Clear statistics of TCP connections. reset tcp statistics
Available in user
view.
Clear statistics of UDP traffic. reset udp statistics
Available in user
view.