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Hi Joe,<br>
<br>
What is the app that generates your bandwidth table shown below?<br>
<br>
Joe Greco wrote:
<blockquote cite="mid:200911080406.nA846S7b038629@aurora.sol.net"
type="cite">
<blockquote type="cite">
<pre wrap="">By "fast" I mean the best Business DSL Bellsouth has to offer: "Up to
6.0 Mbps downstream - Up to 512 Kbps upstream"
</pre>
</blockquote>
<pre wrap=""><!---->
That almost sounds like an invitation to check out what business service
your cableco offers.
One thing to be aware of with DSL and cable modems is that there can be
various ill effects as your line gets closer to its rated capacity; do
not expect that you'll get a reliable 512Kbps upstream. VoIP is sensitive
to loss, latency, and jitter. You may be able, for example, to only get
384Kbps reliably out of the link (before packet loss/jitter/etc wreck its
suitability for VoIP). That's a good time to look seriously at a gateway
package like pfSense that can prioritize certain classes of traffic while
also limiting overall bandwidth.
As an example, we noticed on the local business cable offering (2Mbps up)
Shaped         PL        min        avg        max        stddev
2.2M        3        6.4        251        557        176
2.1M        1        7.8        350        584        134
2.0M        3        6.4        271        535        132
1.9M        1        7        254        527        131
1.8M        0        6        79        339        90
1.75M        0        5.9        14        92        11
1.7M        0        5.4        13        77        10
1.65M        0        4.9        11        69        7
1.6M        0        5.4        13        55        9
1.5M        0        5.3        11        59        7
1.4M        0        5        11        57        7
1.3M        0        4.9        11        54        6
1.2M        0        4.9        11        52        7
1.1M        0        4.8        14        53        11
The max starts trending up after 1.6M (helps to graph it) and pretty much
everything goes to hell after 1.75M.
... JG
</pre>
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