<(E-Mail Removed)> wrote in message
news:(E-Mail Removed) oups.com...
> Hi there,
>
> I am looking at getting a backup ADSL internet connection put into our
> office and I'm just curious as to how seperate the different ADSL
> services are given that they are run out of the same exchange and
> everytime we seem to have a problem it is always down to the exhange.
>
> We are currently using Mistral and the service is fine but every now
> and again we have an fairly lengthy outage 30mins + and i get it in the
> neck!
>
> I have posted a few things on here and here is our exchange:
> http://www.samknows.com/broadband/ex...hp?ecode=LVROY
>
> I have been thinking about going with either BT, PLusNet, Easynet
> (although very expensive) of the Telewest ADSL option.
>
> A tenant has a plus net connection in the office and when our
> connection goes down theirs doesn't. As a result of this i am tempted
> to go with this or the BT option.
>
> What i want to avoid is a situation where both connections go down at
> the same time (although i do understand that there may be times when
> this will happen).
>
> How seperate are the different ISPs
if they dont use LLU or cable, then the service comes from the same BT DSLAM
in the exchange.
if you can get an LLU ADSL supplier then the connections may well be in the
same cable bundle (so a backhoe will rip both out at the same time), and you
share basic physical constraints at the exchange such as power, but
everything else is segregated. Note - most use BT to "fill in" the areas
where they havent bothered yet with LLU, so you need to check what you are
getting.
From samknows looks like Easynet & Bulldog are available there. You can get
to Bulldog via Pipex according to the web site.
If you can get cable then there will be separate ducts, separate head end
etc. Telewest (now NTL) are around there.
a wireless ISP or satellite would also be segregated from any BT cable,
building etc.
ISDN might work - again it uses the BT exchange, but at least different bits
of tin. Slow though,and not so many ISPs support this now.
the trouble with all these is that they are either limited geography (LLU,
cable, Wireless ISP), expensive (sat), slow (ISDN), and / or high latency
(satellite).
However - no matter what you do if a big lump of national or global ISP
interconnect plumbing takes a major hit (like LINX, where most UK ISPs
exchange traffic) it will affect you.
Finally if you get a backup you need to look at your network design to let
you exploit it. There are a few small routers around that can run with 2
Internet feeds for load sharing and / or backup.
>
> Any thoughts or comments welcome
>
--
Regards
(E-Mail Removed) - replace xyz with ntl
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