Nortel 15000 用户指南
Managing the Versalar 15000
302768-C Rev 00
5-19
-t
timeout
is optional. It is the number of seconds for each ping to time out. If the
system receives a response to a ping after it has timed out, the system does not
send an “alive” message to the console. The default is 5.
send an “alive” message to the console. The default is 5.
-v
(verbose) is optional. It generates statistical information about the ICMP echo
request, including information about the success rate and round-trip time.
Ping Messages
The console displays one of the following messages when you issue a
ping
command. If you enter a value for the
repeat_count
argument, the system displays
one of the following messages for the default ping, plus one for each additional
ping:
ping:
•
An “alive” message: This message appears if the system receives an ICMP
echo response from the target device within the timeout allowed. The message
also indicates the size of the test packet. A sample message follows:
echo response from the target device within the timeout allowed. The message
also indicates the size of the test packet. A sample message follows:
ping: 192.32.1.151 is alive (size = 16 bytes)
•
A “does not respond” message: This message appears if the system does not
receive an ICMP echo response from the target device within the timeout
allowed. A sample message follows:
receive an ICMP echo response from the target device within the timeout
allowed. A sample message follows:
ping: 193.32.1.151 does not respond
•
An “ICMP host unreachable from y.y.y.y” message: This message appears if
the Versalar 15000 or the remote router whose address is y.y.y.y cannot
forward the ping request any further along the path to the target device. A
sample message follows, where 192.32.243.1 is the address of the ICMP host:
the Versalar 15000 or the remote router whose address is y.y.y.y cannot
forward the ping request any further along the path to the target device. A
sample message follows, where 192.32.243.1 is the address of the ICMP host:
ping: ICMP host unreachable from 192.32.243.1
•
A “target address is unreachable” message: The local Versalar 15000
previously issued an “ICMP host unreachable from y.y.y.y” message. Within
40 seconds, the local Versalar 15000 received a subsequent ICMP echo
request addressed to the same target device. ARP timed out or the address
could not be resolved. A sample message follows:
previously issued an “ICMP host unreachable from y.y.y.y” message. Within
40 seconds, the local Versalar 15000 received a subsequent ICMP echo
request addressed to the same target device. ARP timed out or the address
could not be resolved. A sample message follows:
ping: 192.32.1.151 is unreachable