3Com 5500G-EI Command Reference Guide - Page 450

450 CHAPTER 12: USING SYSTEM MANAGEMENT COMMANDS Parameter -a ip-address: Specify the source IP address to transmit ICMP ECHO-REQUEST. -c: count specify how many times the ICMP ECHO-REQUEST packet will be transmitted, ranging from 1 to 4294967295. -d: Configure the socket to be in DEBUGGING mode. -h ttl: Configure TTL value for echo requests to be sent, range from 1 to 255 -i: Configure to choose packet sent on the interface. interface-type: Specify the interface type. interface-num: Specify the interface number. interface-name: Specify the interface name. ip: Choose IP ICMP packet. -n: Configure to take the host parameter as IP address without domain name resolution. -p: pattern is the hexadecimal padding of ICMP ECHO-REQUEST, e.g. -p ff pads the packet completely with ff. -q: Configure not to display any other detailed information except statistics. -r: Record route. -s packetsize: Specify the length of ECHO-REQUEST (excluding IP and ICMP packet header) in bytes. -t timeout: Maximum waiting time after sending the ECHO-REQUEST (measured in ms). -tos tos: Specify TOS value for echo requests to be sent, range from 0 to 255. -v: Show other received ICMP packets (non ECHO-RESPONSE). string: Destination host domain name or IP address. Description Use the ping command to check the IP network connection and the reachability of the host. By default, when the parameters are not specified: ■ the ECHO-REQUEST message will be sent for 5 times, ■ socket is not in DEBUGGING mode, ■ the TTL value for echo requests is 255,.