> If I bring up an ISDN connection, and send nothing but DNS zone serial
> queries at the rate of 2/hour, how much load am I placing on the telco
> infrastructure?
Same as if you were pinning the line. ISDN isn't a packet-switched
service. It's a circuit switched service.
"If I bring up a telephone call, and say nothing save an occasional
hiccup, how much load am I placing on the telco infrastructure?"
> I know if I was using an analog modem the phone company would be sending
> at least a carrier signal 24/7.
You reserve the circuit path for the duration of the call. Or two circuit
paths if you bond the channels.
Now, frame or SMDS are packet switched.
- Matt
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