I’m seeing some amazing downstream and upstream sync rates, even though there has been almost no snow since xmas and it’s not down to 0 C. But it has been cold at times. See line 1 upstream, 673 kbps as opposed to 500-550 k, and line 4 downstream with 3.184 Mbps as opposed to around 2.5-2.9 Mbps. That could be the highest downstream sync rate ever seen, I forget. And it’s 100% reliable at the moment.
Modems’ sync rates:
#1: downstream 2.902 Mbps, upstream 673 kbps
#2: downstream 3.019 Mbps, upstream 528 kbps
#4: downstream 3.184 Mbps, upstream 402 kbps
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* Estimated combined IP PDU rate totals (*):
downstream: 7.650 Mbps ( at an assumed 95% MLF ),
upstream: 1.346 Mbps ( at an assumed 95% MLF ),
(*) calculated from:
IP PDU rate upstream = sync rate upstream × protocol efficiency × MLF upstream,
IP PDU rate downstream = sync rate downstream × protocol efficiency × MLF downstream
where :
* if MLF, the so-called 'modem loading factor' = 100% = no rate-limiting, driving at maximum rate,
* MLF downstream = 95% (assumed);
* MLF upstream = 95% (assumed);
* 'protocol efficiency' is concerned with a protocol's bytestream bloat,
* protocol efficiency = 0.884434 ⇐ (
ADSL and ATM,
assumed PDU size = 1500 bytes,
DSL header overhead = 32 bytes
)