DLink recently introduced a new range of eco-friendly switches based on its Green Ethernet technology. Green is the mantra being followed universally by the industry and what better way to do it than by saving on power costs. In offices. switches and routers keep on running 24x7. that leads to power wastage. So. what this switch does is to sense if the PC connected to a given port is on or off. by pinging it. and if it finds the PC off. it drops that port to a low-power standby mode. From the pinging response.

it also auto-senses the length of the cable from the switch to the PC. Now. the power consumed by a cable is directly proportional to its length. If the length is more. the power consumed is more and viceversa. This switch automatically drops the power level when the distance is less. as compared to normal switches that keep all ports at maximum power. So for an initial price premium of about 15-20%. you can save on a lot of power. Planned together with lower power " devices (such as LCDs instead of TFTs) that can also help cut down your capex cost of UPS backup capacity.

(And all that also cuts down heat. and thus aircon capacity. saving you on generator capacity). This ultra-compact switch required no set up at all: it was plug 'n' play all the way. supporting 101100/ 1000 Mbps networks and can operate in half and full duplex mode. The cable diagnostic feature determines whether the wire connected to the device is good or not. and hence saves on troubleshooting time. In case a wire is faulty. an amber light shows on the corresponding port's LED. For testing the switch. we connected two PCs to the switch in an isolated network. We ran QCheck benchmark. and found the TCP throughput to be 72 7 Mbps. UDP throughput at 255 Mbps. and 1 ms response. which are definitely good scores. 1 GB of data went through in 189 secs, which is fast. For transferring 1 Gbps of data it took 3 mins 9 secs which is also a very good result.

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