Alcatel Carrier Internetworking Solutions Switch/Router ユーザーズマニュアル
Using the PING Command
Page 25-23
5. After answering the previous prompt, a screen similar to the following displays:
Ping starting, hit <RETURN> to stop
PING 198.206.184.18: 64 data bytes
PING 198.206.184.18: 64 data bytes
[0
]
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. T. . .
[50
]
. . . T.
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
[100
]
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
[150
]
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
. . . . .
[200
]
. . . . .
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[250
]
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. . .
This screen shows the progress of the ping operation as it is taking place. The numbers in
the square brackets indicate how many packets have been transmitted for that row. The
periods to the right of the brackets represent packets as they are exchanged between the
switch and the device owning the IP address entered for the ping.
the square brackets indicate how many packets have been transmitted for that row. The
periods to the right of the brackets represent packets as they are exchanged between the
switch and the device owning the IP address entered for the ping.
A period (
.
) indicates a packet that was sent out by the switch and came back to the
switch. Occasionally, you may see a
T
character in place of a period. A
T
indicates a
packet that was sent out and never came back to the switch (or a “lost” packet).
When you press
Enter
, the ping operation stops and a screen similar to the following
displays.
----198.206.184.18 PING Statistics----
283 packets transmitted, 281 packets received, 0% packet loss
Round-trip
283 packets transmitted, 281 packets received, 0% packet loss
Round-trip
(ms)
min/avg/max
=
6/28/638
This display shows a recap of the
ping
request just completed and its results. The screen
shown in this example indicates a successful ping operation.
-- -- PING 198.206.184.18 PING Statistics -- --
This display indicates the IP address of the device the switch tried to ping. This is the
same IP address entered in step 1 of the ping request.
same IP address entered in step 1 of the ping request.
283 packet transmitted, 281 packets received, 0% packet loss
The first value indicates the total number of packets transmitted from the switch to the IP
address. The second value indicates the total number of packets received by the switch,
back from the IP address. The third value indicates the percent of packets lost of those
originally transmitted.
address. The second value indicates the total number of packets received by the switch,
back from the IP address. The third value indicates the percent of packets lost of those
originally transmitted.
Round-trip (ms) min/avg/max
These values indicate the amount of time it took for the ping to be sent, received by the
other device, replied to by the other device and received back by the switch. Because the
amount of time needed to complete a round-trip will vary, three values are given to indi-
cate the minimum, maximum and the average time taken to complete a round-trip. These
values are shown in milliseconds.
other device, replied to by the other device and received back by the switch. Because the
amount of time needed to complete a round-trip will vary, three values are given to indi-
cate the minimum, maximum and the average time taken to complete a round-trip. These
values are shown in milliseconds.
To repeat the last ping request, enter the following command at the system prompt:
fping
The last ping issued on the switch is immediately sent again. If no ping was previously
issued, a prompt for the host address displays and defaults are used for Count, Size, and
Timeout.
issued, a prompt for the host address displays and defaults are used for Count, Size, and
Timeout.