| 84.3. ADSL lines | ||
|---|---|---|
 | Chapter 84. FAQ - Frequently Asked Questions |  |
| 84.3. ADSL lines | ||
|---|---|---|
| | Chapter 84. FAQ - Frequently Asked Questions | |
Verify the state of the USB modem: “USB” and “ADSL” LEDs must be green and continuous (not blinking!).
![[Warning]](../images/warning.png) | Warning |
|---|---|
“ADSL” LED is green and continuous even if the logical layer is down. |
| Warning |
|---|---|
When “USB” LED is red, the USB connection isn't active! |
Type the d d adsl command and verify that:
The modem is connected and correctly working: MODEM-STATE:CONNECTED;
ADSL carrier is active: LINE-STATE:UP;
There is traffic on the line: Trh-OUT and Trh-IN columns with values different from zero and increasing over time.
For example:
[10:08:48] ABILIS_CPX:d d dsl
RES:Dsl-1 ---------------------------------------------------------------------
Linea ADSL
LINE-STATE:UP LINE-MODE:ADSL ADSL-ANNEX:A
MODEM-STATE:CONNECTED MODEM-FAILURE:NONE
MODEM-NAME:Abilis-ADSL2+ MODEM-MAC:00-0F-C9-14-7A-CF FW:3.18
----------|---INPUT---|--OUTPUT---|------------|---INPUT---|--OUTPUT---|
SPEED | 8.128 M| 0.829 M|ATTENUATION | 20.8| 18.8|
SN-MARGIN | 18.7| 18.7|INTERLEAVE | 0.25| 0.25|
- ATM level diagnostics ------------------------------------------------
VPI VCI QoS State Bw-In Bw-Out 5sec-Thr-In 5sec-Thr-Out
5min-Thr-In 5min-Thr-Out
------------------------------------------------------------------------
8 35 NORMAL UP 7.361 M 0.751 M 15.4 K 8.14 K
235 K 29.0 K
------------------------------------------------------------------------It's possible to restart the USB modem, using the command debug res:dsl-1 lsn:254. By typing the command debug res:dsl-1 lsn:0, it's possible to display all available debug commands.
[10:08:48] ABILIS_CPX:debug res:dsl-1 lsn:254
RES:Dsl-1 --------------------------------------------------------------------
BufferLength:57 Date/Time:18/01/2017 12:37:50 TraceTime:<NotRunning>
DSL restart has been queued, it will be executed ASAP.If an ADSL line is too slow, you have to do the following verifications.
Verify that the ERRORS parameter in the
ADSL resource isn't increasing over time.
[10:08:48] ABILIS_CPX:d s dsl
RES:Dsl-1 ---------------------------------------------------------------------
Linea ADSL
--- Cleared 3 days 20:47:27 ago, on 13/01/2017 at 19:29:45 -------------
-----------|---INPUT---|--OUTPUT---|-----------|---INPUT---|--OUTPUT---|
LINE-DOWN | 0| |MODEM-DISC | 0| |
LINE-UP | 1| |MODEM-CONN | 1| |
AUTORST-L | 0| |MANUALRST | 0| |
AUTORST-U | 0| |
------------------------------------------------------------------------
- ATM level statistics -------------------------------------------------
-----------|---INPUT---|--OUTPUT---|-----------|---INPUT---|--OUTPUT---|
VC-UNKNOWN | 0| |HEC-ERR | 0| |
AAL5-ERR | 0| 0|MISALIGNED | 0| |
DROPPED | 0| 0|
------------------------------------------------------------------------
VPI:8 VCI:35
-----------|---INPUT---|--OUTPUT---|-----------|---INPUT---|--OUTPUT---|
AAL5-SDU | 4572016| 4375998|AAL5-CHAR | 2084385512| 553960360|
ERRORS | 46435| 0|CELLS | 46435278| 13655724|
------------------------------------------------------------------------Verify the bandwidth occupation with the d d dsl command.
[10:08:48] ABILIS_CPX:d d dsl
RES:Dsl-1 ---------------------------------------------------------------------
Linea ADSL
LINE-STATE:UP LINE-MODE:ADSL ADSL-ANNEX:A
MODEM-STATE:CONNECTED MODEM-FAILURE:NONE
MODEM-NAME:Abilis-ADSL2+ MODEM-MAC:00-26-75-F0-17-BA FW:3.18
----------|---INPUT---|--OUTPUT---|------------|---INPUT---|--OUTPUT---|
SPEED | 11.616 M| 1.165 M|ATTENUATION | 18.4| 8.2|
SN-MARGIN | 11.9| 7.3|INTERLEAVE | 0.25| 0.25|
- ATM level diagnostics ------------------------------------------------
VPI VCI QoS State Bw-In Bw-Out 5sec-Thr-In 5sec-Thr-Out
5min-Thr-In 5min-Thr-Out
------------------------------------------------------------------------
8 35 NORMAL UP 10.520 M 1.055 M 20.9 K 28.7 K
20.9 K 27.6 K
------------------------------------------------------------------------If the input and/or output throughput has a value near to the maximum Bandwidth available, the line is saturated.
With the d nat maps command it's possible to display the IP addresses and ports of the current NAT sessions.
[12:48:33] ABILIS_CPX:d nat maps
Number of records in standard table: 4
S A TYPE SRC-ADDRESS SP/ID DST-ADDRESS DP/ID ALS-ADDRESS ALIAS TM
-------------------------------------------------------------------------------
I S UDP 192.168.000.008 45379 128.006.229.020 57333 080.080.080.080 7668 164
I S TCP 192.168.000.008 1521 193.205.079.111 5542 080.080.080.080 52450 132
I S UDP 192.168.000.008 45379 140.078.149.003 31782 080.080.080.080 7630 70
I S FTPd 192.168.000.003 4551 212.029.147.233 20 080.080.080.080 7455 172
I S UDP 192.168.000.008 45379 143.225.070.229 35236 080.080.080.080 7631 70
I S UDP 192.168.000.008 45379 221.250.120.075 42197 080.080.080.080 7659 136
I S UDP 192.168.000.008 45379 069.246.011.036 32876 080.080.080.080 7645 104
...In this case there is a FTP session that could use a lot of bandwidth.
Verify the number of current NAT sessions with the d d nat command.
[12:48:33] ABILIS_CPX:d d nat
RES:Nat -----------------------------------------------------------------------
Network_Address_Translator
STATE:READY
-----------|--- CUR ---|-- PEAK ---|--- MAX ---|
LINKS | 998| 1000| 1000|
------------------------------------------------If the value of CUR (current) parameter is near
to the value of MAX parameter, probably some sessions
could be discarded.
![[Tip]](../images/tip.png) | Tip |
|---|---|
Remember to check also the IPACL table. |
| |  | |
| 84.2. POTS ports |  | 84.4. CTI system |