Cisco 877 does NOT support G.992.2 ITU G.Lite used by Versatel DSLAM (Netherlands)

Hello,

We were trying to connect a Cisco 877 to a Versatel DSLAM, but were unable
to get a line sync. So we opened a TAC-case, and got the answer quoted
below.

So does anyone know why Versatel is using the G.992.2 ITU G.Lite in their
DSLAM's (type Copper Mountain)?

Is G.992.2 ITU G.Lite a new DSL standard, or is it already becomming
obsolete?

Does anyone know if the other DSL-providers in The Netherlands (KPN, BBned
etc.) are considering to use the G.992.2 ITU G.Lite standard?

We need this information because we are now forced to decide between Cisco
and Versatel.


Ronald de Leeuw


:

------------------------------- START QUOTE

As far as I am aware there are no plans to support G.lite on 877.


As Cisco SOHO97 supports the next:

-------

Cisco SOHO 97 ADSL Specifications

ST-Micro (formerly Alcatel Micro) DynaMiTe ADSL Chipset . T1.413 ANSI ADSL
DMT issue 2 . G.992.1 ITU G.DMT support . G.992.2 ITU G.Lite support .
G.992.3 ITU G.hs ADSL type negotiation . TR-048

-------

The 877 supports.

ST-Micro DynaMiTe (formerly Alcatel Micro Electronics) ADSL Chipset (20190)
.. T1.413 ANSI ADSL DMT issue 2 . G.992.1 ITU G.DMT support . G.992.3 ITU
G.hs ADSL type negotiation . G.992.3 (ADSL 2)/G.992.5 (ADSL2+) . DSL Forum
TR-067

---------

Common on SOHO 97 and Cisco 877

.. T1.413 ANSI ADSL DMT issue 2

.. G.992.1 ITU G.DMT support

.. G.992.3 ITU G.hs ADSL type negotiation

So as long as the DSL line is G.992.1 you are fine.

From the 827/837/Soho97 You can see it:

gtv97#sh dsl int atm0

ATU-R (DS) ATU-C (US)

Modem Status: Showtime (DMTDSL_SHOWTIME)

DSL Mode: ITU G.992.2 (G.Lite)

Please take this up with your local Cisco Sales Team.

They can help you raising a business case for supporting

G.lite on newer products in the future.

The latest new WIC-card is the ADSL HWICs.

http://www.cisco.com/en/US/products/ps6441/products_feature_guide09186a00805

4ed9a.html#wp1027129



ADSL Features

Supported ADSL features are as follows:

..HWIC-1ADSL and HWIC-1ADSLI provide ADSL high-speed digital data

transmissions between the customer premises equipment (CPE) and the central

office (CO).

..HWIC-1ADSL supports ADSL-over-POTS (ADSL, ADSL2, and ADSL2+), complying

with Annex A of ITU G.992.1, G.992.3, and G.992.5.

..HWIC-1ADSLI supports ADSL-over-ISDN (ADSL, ADSL2, and ADSL2+), complying

with Annex B of ITU G.992.1, G.992.3, and G.992.5. It also supports and

complies with ETSI 101-388 and the Deutsche Telekom U-R2 specification.

..HWIC-1ADSL and HWIC-1ADSLI support reach-extended ADSL2, complying with

Annex L of ITU G.992.3.

..HWIC-1ADSL and HWIC-1ADSLI comply with ANSI T1.413 issue 2.

 

Hoi Ronald,

I can't imagine that one of the other dutch dsl-providers will change
standards. That would involve a huge amount of work (config changes
etc.) and raise a lot of support tickets for equipment that doesn't
support the G.992.2 ITU G.Lite standard. I think it would be way to costly.

/jeroen