Access the Management and Diagnostic Console

49

Firewall - Advanced Settings Page

The Firewall - Advanced Settings page allows you to configure the gateway’s firewall.

For details on configuring advanced firewall settings, refer to page 29.

Access the Management and Diagnostic Console

50

Troubleshooting - DSL Diagnostics Page

The Troubleshooting - DSL Diagnostics page displays data associated with the 3700HGV-B gateway’s VDSL

link.

Note:

Most of the values displayed on this page are calculated once at the start of the

connection. Values that are dynamically updated during the connection are marked with an

asterisk (*).

Analyzing General Information

The General Information pane shows diagnostic information for the current VDSL connection (or connection

attempt). These values are also listed in the last row of the Training History pane.

Item

Description

Value

Comment

DSL Line

During line search, the

value will alternate

between 1 and 2. The

“Searching for DSL signal”

comment appears until

the VDSL protocol is con-

firmed with the DSLAM on

the current line.

1 or 2.

None

or

Search-

ing for DSL sig-

nal

.

Downstream

Atten. at 300kHz

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51

Reviewing Training History

This pane provides a record of the last 20 connection attempts. The current connection or connection

attempt is displayed in the last row.

Final Rx Gain

Indicates the current

receive gain setting (in

dB).

Dependent on DSL

line length.

Ok

or

Suspicious

- possible satura-

tion

.

Delay of latency

path

The delay, in millisec-

onds, imposed by the

modem on the interleaved

frames.

Item

Description

*Time

Initially this field will display the time (since power on) in

DAYS HH:MM:SS format, until the gateway can access the

Internet and retrieve the current local time. Subsequently

the time (since power on) is displayed in YY:MM:DD and

HH:MM:SS format.

Line

The line (1 or 2) on which the gateway is searching for a

DSL signal.

Downstream

Rate

The net user data rate (in kbps) for the connection.

Max1

Maximum rate achievable at the time of the initial connec-

tion based on the line quality (specifically, the uncapped

rate).

*Max2

Latest estimate of maximum achievable rate adjusted for

changing line conditions.

Mgn1

Noise margin (in dB) at the start of the connection.

*Mgn2

Latest noise margin adjusted for changing line conditions

since the connection was first established.

Attn

Measured attenuation (dB) of the line.

Pwr

Transmit power (dB).

*CRCs

Total uncorrected errors for this connection.

*FECs

Total corrected errors for this connection.

Upstream

Rate

The net user data rate (in kbps) for the connection.

Item

Description

Value

Comment

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52

Reviewing Bitloading

The Bitloading pane shows the bits loaded per tone for the upstream (tones 6 to 31) and downstream

(tones 32 to 255) spectrum. A single hex-digit for each tone shows the numeric value (0 to F) in addition to

the bar-graph depiction.*

Max

Maximum rate achievable at the time of the initial connec-

tion based on the quality of the line (specifically, the

uncapped rate).

Mgn

Noise margin (in dB) at the start of the connection.

Attn

Measured attenuation (dB) of the line.

Pwr

Transmit power (dB).

*CRCs

Total uncorrected errors for this connection.

*FECs

Total corrected errors for this connection.

Mode

The DSL mode used.

Vendor

Vendor ID of the DSLAM (for example, ALCB indicates Alca-

tel DSLAM in G.DMT mode).

Rx Gain

Indicates the current receive gain setting, which will

depend on the length of the DSL line.

Item

Description

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53

Troubleshooting - Event Log Page

The Troubleshooting – Event Log page displays events for the broadband and local network. Log information

is stored in a fixed-size buffer. When the buffer is full, the oldest items are purged from the log. You can

also clear the log contents by clicking the

Clear Log

button.