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It looks like Jay gave you more and better info than
I can on frame providers.
I was referring to the possibility of
using your existing ISDN line for the connection to
the frame-relay entry point rather than a leased 56 kb
line. In my area the price of 56kb dedicated works out
to about the same as full time ISDN usage (I think,
I've only done a quick check some time ago). ISDN is
dialable so
you CAN use it for other things, such as an ISP.
It's also faster
if you use both b channels, though that may not be
a real concern. My real point was you already have
ISDN, so it might be worth looking into using it
rather than a leased line. I wouldn't recommend
getting it for the purpose.
Speed wouldn't affect response time
much; it WOULD affect download time for large data
blocks. I would presume most of the data you want
to transmit is text (no graphics - surely graphics,
such as updating charts, are generated locally).
That would be a fairly small data flow so line
speed doesn't matter a lot.
10 ms would be very fast response indeed. I get that
on my local LAN (10 megabits). I get 100 ms to the
closest entry point via 56k leased line + 64k frame relay
through World Com (I'm connected to my corporate lan
via frame relay). These are ping times--round trip.
The thing about the frame connection is you don't depend
on an ISP. That's where the real savings comes from
(but I'd have to see 10 ms to believe it).
Would your 56kb line really come from World Com? I have
to get it from the local telco -- or I guess I have to,
I haven't looked into alternatives, but as far as I
know no one else can drop a loop to my house. Yet.
When that day comes, a certain RBOC is going to get
a VERY nasty letter from a brand new ex-customer <G>.
Incidentally, with a frame relay hookup your pcs will
be visible in the Cybertrader private network. Do you
have passwords on your shared resources? If not,
an outsider could potentially look at your files via
that network. Print MB Trading commercials on your
printer<G>. TCP/IP is a two-way street. This
is a question for the CT techies; I expect they've
thought of it. |
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