[Gllug] Is my cheapo router really caching DNS?

[t.clarke]

There are apparently at least two flavours of ADSL around at the moment.
The type mainly on offer its seems is the ADSL-max service at 'up to' 8Mbps,
which uses some fancy dynamic protocol which adjusts the raw speed according to
the line length/condition (and can, in my experience, vary from day to day).


The lower speed ADSL seems to still be available, which I believe is a fixed
raw speed.
ADSL2+ or whatever is being rolled out in some places at up to 24Mbps, but I
wouldn't hold yr breath unless you are very close to an Exchange!

A quyick google seems to indicate that there are 3 main modulation schemes
in use giving up to 8,12 and 24 Mbps respectively.

Your ISP tech support should be able to tell you what speed your exchange line
is theoretically capable of supporting. ADSLmax should then be able to supply
a raw connection speed around or approaching that figure.  Whether or not the
type ADSL chipset in your router makes any difference I have no idea - but I
have seen claims that the TI AR7 chipset copes better with longer lines than
some others.

I am not sure whether the upto2Mbps ADSL service uses a different modulation
scheme to the upto8 service, but I would think if your line won't physically
support the full 2Mbps it would seem unlikely that the 'max' service will give
much of an improvement  -  I am sure Jason could comment much better on this!
Again, ask yr ISP to do a check on the line.

Can you post the modem connection stats on the list obtained from your router?

Tim



-- 
Gllug mailing list  -  Gllug at gllug.org.uk
http://lists.gllug.org.uk/mailman/listinfo/gllug