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Not exactly. The bottleneck that is being described is the one
between the CO and the Customer Premise. That is different than the
bottleneck that might exist internally at the CO. That might also be
a limiting problem, but it is a different limiting problem than was
originally asked about.
My understanding is that DSL works on a single pair of wires, and is
distance-sensitive. In the original poster's message (IIRC) he
complained that his throughput was limited because of his distance
from the CO, not because the DSLAM or switch was congested. Using two
different pairs, and bonding their bandwidth may well get you a
fatter pipe to the CO, regardless of whether your bandwidth over an
individual DSL circuit is distance-limited. If there is congestion at
the switch/DSLAM in the CO you won't get much improvment, but if
otherwise the CO is clear you should see significant improvement in
throughput.
Kurt
|
| actually, I understand it quite well (we sell DSL frame relay
| equipment).
| DSL is either aggregated on a Frame line (where a few hundred
| circuits are
| brought in on a T1 or lots more on a T3), or on ATM. Although
| you have 2
| pipes on your end, you only have one on the upstream end, so
| all you are
| doing is adding more statistically multiplexed traffic to an
| already overloaded pipe. Kind of like if you have 10 lanes merging
| into 1...adding an 11th lane is not going to make much difference.
|
| dennis
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