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| Big Size ISP : High Cost Saving |
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| Result |
| International backbone line is really expensive. Increasing
capacity of bandwidth costs immense. One of the big ISPs
decided to manage their P2P traffic. To select proper
equipment, they tested the performance of several vendors'
products for several months. ARA-PPTM's competitors are
P-cube, Sandvine and Ellacoya. |
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| After several months later, they select ARA-PPTM based
on the performance test result in real network. Currently,
they can save more than 2G bandwidth by using PPTM, and
their backbone upgrade doesn't require anymore. |
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| Middle Size ISP : Continuous Technical Support |
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| Result |
| P2P traffic appears and fades away continuously. One
of costumers has already used ARA-PPTM. There is some
change of P2P protocol. So, ARA Networks provides update
protocol for them. After updating P2P protocol, the peak
outbound traffic decreases 200M as 600M to 400M. ARA Network
can continuously provide active technical support for
customers |
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| Small Size ISP : Efficient Traffic Management |
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| Problem |
| One of customers had expanded their bandwidth. However,
traffic increases day by day. In the short time, their
network bandwidth was full. They did not know what the
matter was. ARA Network installed ARA-PPTM to their network.
They could find out the source of the matter. P2P traffic
takes big part of their traffic. |
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| Measure |
| Traffic management is made by subscribers' Internet
use tendency. Web traffic is a lot from 6PM to 2AM. Because
P2P protocols have the highest priority, Web users could
feel slow Internet Web surfing. So, administrator limited
P2P traffic for Web traffic peak hour. When Web traffic
is low, he allowed P2P at night. |
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| Result |
| They can save bandwidth around 50~100M by managing P2P traffic on schedule, |
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| Solutions by Network Structure |
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| If traffic management equipment is applied in network
as inline method, it has great defects. Once equipment
is failed, whole network is going to be shut down. Also,
placing two devices for fail-over purpose is requiring
twice cost. To increase performance of inline equipment,
packet delay and packet loss are inevitable. |
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| Fail-Over |
| ARA-PPTM uses tap device(Packet Mirroring). Once tap
device is applied between routers, or between router and
switch, there is no risk of network failure. Applying
tap device in the network takes 1~5minutes. |
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| Asymmetric Network |
| In asymmetric network, ARA-PPTM is proper solution.
In case of inline equipment, they should install two devices.
ARA-PPTM can manage two lines one at a time. For more
information, contact here. |
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