[c-nsp] Combine two 2-wire DSL

[Pavel Dimow]

Thank you Tony, I will try this later at customer site.



On Tue, Jun 4, 2013 at 1:04 PM, Tony <td_miles at yahoo.com> wrote:

> Hi Pavel,
>
> If you have a 4-wire capable card and the port on the dslam end is 4-wire
> then it is configured the same as 2-wire but you need to tell your router
> to use 4-wire mode. The 4 wires (two pair) are used at the DSL layer, not
> layer 3.
>
> I don't know about a card in an 1841, but in an 878 (fixed chassis SHDSL)
> it is configured like this (real config from live/working router):
>
> controller DSL 0
>  mode atm
>  line-mode 4-wire enhanced
>  dsl-mode shdsl symmetric annex B
>  line-rate 4096
>
> Then you configure all the rest the same as a "normal" 2-wire service (no
> multilink, multiple PVC's, or anything more complex). When it negotiates
> the SHDSL with the DSLAM, it will use all four wires for the DSL "session"
> and should get the higher speed.
>
>
> regards,
> Tony.
>
>
>
>
>   ------------------------------
>  *From:* Pavel Dimow <paveldimow at gmail.com>
> *To:* Tony <td_miles at yahoo.com>
> *Cc:* "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>
> *Sent:* Tuesday, 4 June 2013 7:58 PM
> *Subject:* Re: Combine two 2-wire DSL
>
> Yes the circuit in question is SDSL. Is there any other special
> requirements? The ISP does support 4-wire mode but I don't understand
> should I create one or two pvc's and how to combine them via multilink or
> virtual-template. I tried both and I always get 2304 speed instead of 4608
>
>
> On Tuesday, June 4, 2013, Tony wrote:
>
> It requires the other end (exchange end) to be plugged into an equivalent
> type card on the dslam that can combine the 4-wires into a single service.
>
> Can you even do ADSL on 4-wire ? I know SHDSL can be done over 4-wire.
>
>
> regards,
> Tony.
>
>   ------------------------------
>  *From:* Pavel Dimow <paveldimow at gmail.com>
> *To:* "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>
> *Sent:* Tuesday, 4 June 2013 5:46 AM
> *Subject:* [c-nsp] Combine two 2-wire DSL
>
> Hi,
>
> is it possible to combine two 2-wire DSL's into one 4-wire DSL using Cisco
> 4-wire DSL card on 1841?
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