Owner's Manual
System Management 423
System Management
ping
The
ping
user EXEC command sends ICMP echo request packets to another node on the network.
Syntax
ping
host
[
size
packet_size
] [
count
packet_count
] [
timeout
time_out
] st
•
host
—IP address being contacted.
•
packet_size
—Number of bytes in a packet, from 56 to 1,472 bytes. The actual packet size
is eight bytes larger than the size specified because the switch adds header information.
•
packet_count
—Number of packets to send, from 1 to 65,535 packets. If 0 is entered it
pings until stopped.
•
time_out
—Timeout in milliseconds to wait for each reply, from 1 to 65,535 milliseconds.
Default Configuration
The default packet size is 56 bytes.
The default packet count is 4 packets.
The default time-out is 1,000 milliseconds.
Command Mode
User EXEC mode
User Guidelines
Press
Ctrl-C
to stop pinging. Following are sample results of the
ping
command:
•
Destination does not respond
—If the host does not respond, a
“
no answer from
hos
t
” message appears in 10 seconds.
•
Destination unreachable
—The gateway for this destination indicates that the destination
is unreachable.
•
Network or host unreachable
—The switch found no corresponding entry in the route
table.
To ping an out-of-band IP address, use the out-of-band IP address format —
oob/ip-address
.