
Nortel Networks 5399 Access Switch Hardware Installation Guide
Chapter 3
ROM Monitor Commands
3-20
ping
The ping command sends an Internet Control Message Protocol (ICMP)
mandatory ECHO_REQUEST datagram to elicit an ICMP
ECHO_RESPONSE from a host or gateway. ECHO_REQUEST
datagrams (pings) have an IP and ICMP header, followed by a structured
time value and an arbitrary number of pad bytes that fill out the packet.
The syntax for this command is:
ping host_ip_address [data_size] [npackets]
•
The host_ip_address entry is the Internet address of the host
or gateway from which you wish to elicit a response.
•
The optional data_size entry is the number of bytes sent in a
datagram packet. The default value is 64 and the maximum
value is 1024.
•
The optional npackets entry is the number of packets to
transmit. If you specify npackets, you must also specify a
data_size.
The ping command display looks similar to this:
If you enter the ping command without specifying an IP address, the
display looks similar to this:
When you enter the ping command, the following prompt is displayed:
Enter Segment to be used [1]:
To exit out of ping either wait for npackets to be transmitted or, at any
point, type q. The ping statistics display upon exit.
monitor:: ping 132.245.33.69
Enter Segment to be used (1-6) [1]: 1
PING 132.245.33.69: 64 data bytes
monitor:: ping
Enter segment to be used (1-6) [1}: 1
IP address required, ie: ping 132.245.33.69\
[data bytes] [npackets]