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CHAPTER 2
Intel Express 100BASE-TX Switching Hub
Ping a device (at
IP address
)
number
of times or 0 for endless ping.
The ping process sends a
number
of datagrams, one per second. One
line of output appears for every response received. Normal response
time is 1 to 10 seconds.
The ping command is intended for testing the connectivity between
the switch and an IP station. It is not intended as a traffic generator, so
it’s best to avoid using an endless ping. To stop the ping, use cC
or enter the ping-stop command.
SYS_console> ping 129.1.1.1 10
129.001.001.001 Alive. echo reply: id 297, seq 4, echo-data-len 8
PING process stopped - press <CR> for prompt
— press <CR> to get the prompt again
If the host doesn’t respond, the console prompt appears and no output
is added. Failure to get an echo response from a host may be due to
the following:
• A bad physical connection.
• A nonexistent or inactive host.
• network unreachable: no corresponding entry in the routing table.
• destination unreachable: the default gateway failed to route the
datagram.
• outdated Address Resolution Protocol (ARP) table information:
clear the ARP table with the del-arp-entry command.
If there’s an active ping process due to a previous “long” ping
command and you try to start a new ping, the command fails.
ping-stop
Stops the active ping process. You can also use cC.
Address Resolution Protocol (ARP) Commands
get-arp-tbl
Shows the ARP table. This table shows the port and MAC address for
each IP address in the table.
SYS_console> get-arp-tbl
IfIndex IpAddress MAC Address
====================================================
1 129.001.001.001 00-40-05-2D-73-9C
1 129.001.001.200 00-02-A0-D4-9A-57