high latency on ISDN???

[David]

Hi, I am new to ISDN. We live in the boonies and finally figured that
DSL or any other type of high speed internet would never become
available here. So we got an ISDN line installed. It is OK. But it
seems when browsing webpages, it still loads pretty slow. I just
pinged www.yahoo.com and I got the latency time at around 175-180 ms.
I was reading some other posts and people are complaining about
latency at 30 ms. Mine is about 6 times that!!! Does anyone know why
it would be so high and if there is anything I can do to correct that?

David

[Martin Liddle]

Post by David
Hi, I am new to ISDN. We live in the boonies and finally figured that
DSL or any other type of high speed internet would never become
available here. So we got an ISDN line installed. It is OK. But it
seems when browsing webpages, it still loads pretty slow. I just
pinged www.yahoo.com and I got the latency time at around 175-180 ms.
I was reading some other posts and people are complaining about
latency at 30 ms. Mine is about 6 times that!!! Does anyone know why
it would be so high and if there is anything I can do to correct that?

Assuming you are in the UK try pinging something this side of the
Atlantic eg www.yahoo.co.uk . What sort of equipment are you using to
connect your PC to ISDN (eg USB on Home Highway, PCI card, ISDN router)?

[Dave Liquorice]

Hi, I am new to ISDN. We live in the boonies ...

The where?

I just pinged www.yahoo.com and I got the latency time at around
175-180 ms.

That's much to far away across the net to provide any sensible answer.
As this is demon.service.isdn I shall assume that you are a Demon
customer not some troll posting to every group with "isdn" in the
name.

Try pinging 158.152.1.222 that is the demon machine at the other end
of the ISDN line and will give the latency of the link. It's a while
since I pinged over the ISDN here but ISTR times around 60mS. After
that explore with traceroute to other machines within demon then to
ones close, in internet terms, to demon.

Does anyone know why it would be so high and if there is anything I
can do to correct that?

Not enough information provided. Need to know more about what
equipment/software etc you are using.

[Richard P. Scott]

Post by Dave Liquorice

Hi, I am new to ISDN. We live in the boonies ...

The where?

The boondocks? i.e. as far as BT are concerned, most places more than 5
miles from a city.

Post by Dave Liquorice

I just pinged www.yahoo.com and I got the latency time at around
175-180 ms.

Try pinging 158.152.1.222 that is the demon machine at the other end
of the ISDN line and will give the latency of the link. It's a while
since I pinged over the ISDN here but ISTR times around 60mS. After
that explore with traceroute to other machines within demon then to
ones close, in internet terms, to demon.

I don't think 158.152.1.222 is a good choice as it considers pings low
priority and responds slowly or not at all when loaded.

Post by Dave Liquorice

Does anyone know why it would be so high and if there is anything I
can do to correct that?

You may be using the USB interface on the HH box and BT software. I tried
that when I was on Demon and my pings to the Jolt gameservers were 120ms+.
I switched to an ASUStec P-IN100-ST-D from http://www.solwise.co.uk/ and
pings to Jolt dropped to 60ms. An external serial TA gave about 90ms.

HTH
Richard.

[Dave Liquorice]

Post by Richard P. Scott
I don't think 158.152.1.222 is a good choice as it considers pings
low priority and responds slowly or not at all when loaded.

So what do you suggest within demon as good place?

Post by Richard P. Scott
You may be using the USB interface on the HH box and BT software.

I'd forgotten about USB on HH NTEs however HH was but a pipe dream
when I got ISDN... Best preformance is probably going to be an active
internal card (expensive), closely followed by a passive internal card
(cheap).

[Richard P. Scott]

Post by Dave Liquorice

Post by Richard P. Scott
I don't think 158.152.1.222 is a good choice as it considers pings
low priority and responds slowly or not at all when loaded.

So what do you suggest within demon as good place?

Well, back in April I was using www.demon.net as it is a 'real' machine and
not some form of network equipment.
That isn't necessarily true now since Demon started filtering traceroute
etc.

Post by Dave Liquorice

Post by Richard P. Scott
You may be using the USB interface on the HH box and BT software.

I'd forgotten about USB on HH NTEs however HH was but a pipe dream
when I got ISDN... Best preformance is probably going to be an active
internal card (expensive), closely followed by a passive internal card
(cheap).

Interesting. What do you consider 'active' and 'passive'? Are you
suggesting 'passive' is some sort of ISDN WinTA?

Richard.

[Dave Liquorice]

Post by Richard P. Scott
Interesting. What do you consider 'active' and 'passive'? Are you
suggesting 'passive' is some sort of ISDN WinTA?

I was hoping that wouldn't be asked. B-)

"Passive" cards are the like of the BT Speedway, Elsa Microlink etc,
ie well below £50. I can't think of any "active" cards, I've never had
one far to expensive... they never really took off either.

[Bob Evans]

Post by Dave Liquorice
"Passive" cards are the like of the BT Speedway, Elsa Microlink etc,
ie well below £50. I can't think of any "active" cards, I've never had
one far to expensive... they never really took off either.

Perhaps consider that the majority of NICs in use for 100Mbs Ethernet
are "passive" designs and then ask yourself whether the performance hit
entailed in letting the PC's CPU deal with the mere 192Kbps data stream
of Basic Rate ISDN is all that significant?

[Dave Liquorice]

Post by Bob Evans
Perhaps consider that the majority of NICs in use for 100Mbs
Ethernet are "passive" designs and then ask yourself whether the
performance hit entailed in letting the PC's CPU deal with the mere
192Kbps data stream of Basic Rate ISDN is all that significant?

Possibly a hangover from when I started plying with PCs. You could
read a "dir" listing as it scrolled up the screen...

[Martin Saltiel]

Post by Dave Liquorice

Post by Bob Evans
Perhaps consider that the majority of NICs in use for 100Mbs
Ethernet are "passive" designs and then ask yourself whether the
performance hit entailed in letting the PC's CPU deal with the mere
192Kbps data stream of Basic Rate ISDN is all that significant?

Possibly a hangover from when I started plying with PCs. You could
read a "dir" listing as it scrolled up the screen...

Yes on a 300baud modem you could almost read fidonet posts as they came
in. (Those were the days)


I feel the same though sometimes and yes I have an ISDN2e.

Cheers

[Brian {Hamilton Kelly}]

Post by Dave Liquorice
"Passive" cards are the like of the BT Speedway, Elsa Microlink etc,
ie well below =A350. I can't think of any "active" cards, I've never had
one far to expensive... they never really took off either.

They never took off because they were (and are) completely unnecessary;
as others have said in this thread, a "passive" ISDN card handles a much
lower level of traffic than a 100Mb/s Ethernet card, yet those too are
"passive" in just the same way.

About the only facility that "active" TAs were good for was handling
group G4 fax traffic; but how many (or should that be few) potential
recipients could handle G4 anyway?

Bullshit Barry was the only supported of "active" cards, and that was
only because he wanted to off-load a pile of inferior ones that he'd
somehow lumbered himself with.

[John Beardmore]

Post by Richard P. Scott

Post by Dave Liquorice

Hi, I am new to ISDN. We live in the boonies ...

The where?

The boondocks? i.e. as far as BT are concerned, most places more than 5
miles from a city.

Post by Dave Liquorice

I just pinged www.yahoo.com and I got the latency time at around
175-180 ms.

Try pinging 158.152.1.222 that is the demon machine at the other end
of the ISDN line and will give the latency of the link. It's a while
since I pinged over the ISDN here but ISTR times around 60mS. After
that explore with traceroute to other machines within demon then to
ones close, in internet terms, to demon.

I don't think 158.152.1.222 is a good choice as it considers pings low
priority and responds slowly or not at all when loaded.

That just gets me a timeout, though ISDN is working.


Cheers, J/.

[Brian {Hamilton Kelly}]

Post by Dave Liquorice

Hi, I am new to ISDN. We live in the boonies ...

The where?

I just pinged www.yahoo.com and I got the latency time at around
175-180 ms.

That's much to far away across the net to provide any sensible answer.
As this is demon.service.isdn I shall assume that you are a Demon
customer not some troll posting to every group with "isdn" in the
name.

An unwise assumption; I think that he IS just a fuckwit posting with a
scattergun to anything with isdn in it.

His posting host appears to be ppp-172.62.triton.net [216.65.172.62];
Triton appear to operate out of Grand Rapids, MI.

[Snip what would have been sensible advice had the OP really been a Demon
customer.]

[Dave Liquorice]

Post by Brian {Hamilton Kelly}
His posting host appears to be ppp-172.62.triton.net
[216.65.172.62]; Triton appear to operate out of Grand Rapids, MI.

I post from Germany but I ain't in Germany. I do take the point
though and with a name like that it looks very dialup.

[Simon]

Post by Dave Liquorice
I post from Germany but I ain't in Germany. I do take the point
though and with a name like that it looks very dialup.

Even so, it's still clear that your post originated from a machine in
the UK:

inetnum: 195.188.88.0 - 195.188.88.63
netname: LANCASTER-UNIVERSITY
[...]
route: 195.188.0.0/16
descr: Telewest Broadband
descr: UK Broadband ISP

The OP's post originated from a dial-up account in the US.

[Dave Liquorice]

Post by Simon
Even so, it's still clear that your post originated from a machine
inetnum: 195.188.88.0 - 195.188.88.63
netname: LANCASTER-UNIVERSITY
[...]
route: 195.188.0.0/16
descr: Telewest Broadband
descr: UK Broadband ISP

And even that is miss leading but getting closer...