The Compex DS2216 16-Port Switch
Introduction
Not
nearly enough network reviews exist. Sure, when the latest Bluetooth/wireless
"wizbang" component is released, many sites do review the fresher
technology, but why forget about the staple networking gear. Hubs, switches,
routers, NICs, etc. are the mainstay of networks and sadly few reviews crop
up extolling the virtues of say, the latest 16-port switch.
How
many low cost switches (read: non-Cisco brand) are upgradeable? Not necessarily
by adding a port, but by trunking additional ports to increase throughput
by as much as 400%? The Compex DS2216 is just such an item. Imagine starting
with a small network, say about a dozen boxes, then moving up to two dozen.
What should you do? You could purchase a 24 or 36 (gulp) port switch and fight
with lousy uplink speeds and massively increased network congestion or you
could grab another DS2216 and have four times the bandwidth between
switches. Now that sounds cool.
Factory
Specifications
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Compex
DS2216
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- Industry
Standards: IEEE 802.3, IEEE802.3u, IEEE802.3x
- Interface:
16-Port 10/100Mbps RJ45
- Modes: N-Way
Auto-Negotiation or Forced Mode
- Port Trunking:
Yes, 4-ports
- Flow Control:
IEEE 802.3x - Full Duplex or Back Pressure - Half Duplex
- Warranty:
3 Years
- List Price:
$109.95 USD
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Description
& Specifications
The DS2216
has 16 ports with one MDIX switchable port on the lower right corner (port
#8). Ports can be run in auto sensing mode or forced (i.e. full duplex) mode.
If a second DS2216 is available, up to 4 ports each switch (8 total) can be
used in a trunking mode, which allows for greater bandwidth over a smaller
number of paths.
As with many
newer switches, this model is fanless so noise doesn't present a problem if
located in a high traffic area.
I'm a big
fan of LED indicators so that it's easy to see at a glance what's happening.
The Compex unit sports full readouts for this class of switch. The warranty
is 3 years.
Port Trunking
Some readers
may ask, "what's port trunking?" so I'll briefly cover its features
here. Looking for a concise definition of port trunking I came across this
phrase, "...increased bandwidth over a smaller number of paths."
This means that although more ports will be used in the trunking process,
the speed between devices increases. Let me illustrate.
Single
Trunk (Standard)
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Quad
or 4-Port Trunk
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200Mbps
Full Duplex Between Units
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800Mbps
Full Duplex Between Units
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Note:
A standard CAT5 cable may be used for the single trunk (which isn't really
trunking per se); however, crossover cables must be used for multiple
port trunking. Normally when connecting one switch to another switch, one
end of the standard cable is plugged into a port that switches the other end
to a crossover type (flips pairs 1&2 and 3&6).