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Page 96 / 132 Scroll up to view Page 91 - 95
Management and Diagnostic Console
91
Upstream
Rate
The new user data rate (in kbps) for the connection.
Max
Maximum rate achievable at the time of the initial connection based on the line
quality (specifically, the uncapped rate).
Mgn
Noise margin (in dB) at the start of the connection.
Attn
Measured attenuation (in dB) of the line.
Pwr
Transmit power (in dB).
CRCs
Total uncorrected errors for this connection.
FECs
Total corrected errors for this connection.
Mode
The DSL mode used (G.DMT, T1.413, or G.LITE).
Vendor
Vendor ID of the DSLAM (for example, ALCB indicates Alcatel DSLAM in G.DMT
mode).
State
The internal state of the modem. If there are repeated connection problems,
technical support representatives can use this information to determine at what
point during training the modem failed, or whether the modem is repeatedly failing
at the same point.
Exit Code
Indicates the reason for a lost connection or a terminated training attempt.
Following are examples of the typical values that can be represented:
ERR_LOF_LIMIT - Retrained due to loss of framing.
ERR_LOS_LIMIT - Retrained due to loss of signal.
ERR_HI_BER_LIMIT - Retrained due to excessive CRCs.
RESTART - System deliberately restarted modem (line search, reprovisioning, or 30-
second timeout when waiting for DSL signal.
ERR_STATE_TIMEOUT - Modem timed out during training (for example, the modem
failed to detect pilot signal at the appropriate time).
ERR_ALL_OPTIONS_FAIL - Failed to negotiate a final bitrate with DSLAM.
RETRAIN_HIGHER - Proactive retrain in order to obtain a significantly higher connect
rate.
Echo
A measure of the uncancelled echo
relative
to the background noise on the line.
This is an indication of how much the uncancelled echo is affecting DSL
performance, rather than an absolute measure of the uncancelled echo.
VXCO
Indicates the difference between the gateway’s and the DSLAM port’s crystal
frequency in parts per million (ppm).
Rx Gain
Indicates the current receive gain settings, which will depend on the length of the
DSL line.
INC Tones
Indicates the number of compensation tones on which impulse noise is detected.
Item
Description
Page 97 / 132
Management and Diagnostic Console
92
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 values (0 to F) in addition to
the bar-graph depiction.
Page 98 / 132
Management and Diagnostic Console
93
Troubleshooting - Event Log Page
The Troubleshooting – Event Log page displays all security related events for the broadband and local
network. Log information is stored in an 8 KB 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.
Figure 41. MDC Troubleshooting Event Log Page
You can view specific information by selecting which log to view from the pull-down menu and then clicking
the
Filter
button (the screen capture depicted above has the
system
filter applied). Following are
descriptions of the logs.
•
Access.
Shows the current access log, which registers all significant Content Screening and Internet
Access Control events.
•
All.
Shows all logs that register a significant event (access, firewall, fw alert, system, and wra).
•
Firewall.
Shows all detailed firewall events, including Internet Access Control and Firewall Monitor.
•
FW Alert.
Shows the current Firewall Monitor log, which registers all significant Firewall Monitor-related
events.
•
HURL.
Shows the Broadband Redirect messages that have been enabled by a service provider.
Page 99 / 132
Management and Diagnostic Console
94
•
Modem.
Shows the current modem log, which registers all significant modem-related events.
•
System.
Shows the current system log, which registers all significant events within the 2Wire gateway
since it was last restarted.
•
WRA.
Shows the current Web Remote Access log, which registers all significant Web Remote Access-
related events.
Each log entry includes the severity level, a description of the event, and the actual time that it occurred.
The most recent events display at the
bottom
of the list.
Events generate an Informational (INF) or Warning (WRN) severity level. Informational indicates events that
are informational only; Warning indicates an unexpected condition that does not affect the 2Wire gateway’s
ability to operate (for example, a network problem or the 2Wire gateway is not configured properly).
For events that involve the transfer of packets, the following additional information is displayed.
Item
Description
src
Source IP address
dst
Destination IP address
ipprot
Protocol number as indicated in the IP header field
sport
Source port (TCP and UDP)
dport
Destination port (TCP and UDP)
Disposition of the event
The action taken when the event occurs (for example,
“Unknown inbound session stopped”)
Page 100 / 132
Management and Diagnostic Console
95
Troubleshooting - Network Tests Page
The Troubleshooting – Network Tests page provides the Ping, Traceroute, and DNS Query tools, which help
diagnose problems with the 2Wire gateway or 2Wire gateway connections.
Figure 42. MDC Troubleshooting Network Tests Page
The Ping test allows you to ensure that the 2Wire gateway can send data packets to (ping) a remote host.
The Traceroute test traces the number of times a data packet sent from the 2Wire gateway is routed before
it reaches its destination. The DNS Query test finds the IP address of the domain name service.

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