ADSL2+ Tester 4 Navigating the Displays
72-0046-03A 29
Bit Error Ratio Test (BERT) on the ADSL line is usually used to make the evaluation on the
transmission quality of ADSL signals. In Fig 4, press
“
F2
”
key to select
“
Line BERT
”
test
mode and its displays is shown as Fig 7.
Caution:
The test time of
“
Line BERT
”
test has the range with minimum 20 seconds
and maximum 3 hours in limitation.
4.2.3
“
PING
”
settings menu
PING is a utility to determine whether a specific IP address is accessible. It works by
sending a packet to the specified address and waiting for a reply. PING is used primarily to
troubleshoot Internet connections or LAN connections.
In main
“
Settings
”
menu, Press
“
F2
”
to select
PING
to enter into Page 1 of
“
PING
”
settings menu, as shown in Fig 8. Press
“
Cursor Moveable Right and Down
”
key to
move the cursor to the positions of parameters, select
“
LAN PING
”
or
“
WAN PING
”
.
And then you can use
“
F1
”
,
“
F2
”
,
“
F3
”
and
“
F4
”
to choose the parameters.
Caution:
Firewalls are always used by some firms and organizations to protect their
LAN against attacking. So the firewalls maybe refuse the PING packets. If the
destination IP address is protected by the firewall, the PING testing will not
work normally.
When no reply is received from the destination IP, there are two possibilities
existing. One is that the website under ping testing is protected by a firewall.
And the other is that the website under ping testing is unreachable.
You can press
“
Start/Stop
”
key to control the test duration of PING testing.
Fig 8:
“
PING
”
settings menu
S ett ings P:1/2 10:30:00
F unct ion [
PING
] [LAN PING]
DST IP [192.168.001.001]
LAN IP [192.168.001.254]
IP Mask [255.255.255.000]
Packet Lengt h [ 56]byt es
LINE
PARAM
LINE
B ERT
> >
PING
i
Connect ing
……
