1-6To do… Use the command… RemarksEnter system view system-view —Enable sending of ICMP timeout packets ip ttl-expires enable RequiredDisabled by default.Enable sending of ICMP destinationunreachable packets ip unreachables enable RequiredDisabled by default.The device stops sending “TTL timeout” ICMP error packets after sending ICMP timeout packets isdisabled. However, “reassembly timeout” error packets will be sent normally.Displaying and Maintaining IP Performance OptimizationTo do… Use the command… RemarksDisplay current TCP connectionstate display tcp status Available in any viewDisplay TCP connection statistics display tcp statistics Available in any viewDisplay UDP statistics display udp statistics Available in any viewDisplay statistics of IP packets display ip statistics Available in any viewDisplay ICMP statistics display icmp statistics Available in any viewDisplay socket information display ip socket [ socktypesock-type ] [ task-id socket-id ] Available in any viewDisplay FIB informationdisplay fib [ | { begin | include |exclude } regular-expression | aclacl-number | ip-prefixip-prefix-name ]Available in any viewDisplay FIB information matchingthe specified destination IPaddressdisplay fib ip-address [ mask |mask-length ] Available in any viewClear statistics of IP packets reset ip statistics Available in user viewClear statistics of TCP connections reset tcp statistics Available in user viewClear statistics of UDP traffic reset udp statistics Available in user viewCurrently, the S5120-SI series Ethernet switches do not support the display fib ip-prefixip-prefix-name command. That is, they do not display FIB entries matching a specified IP prefix list.
