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VPNs are private wide area network (WAN) solutions that overlay
the public Internet infrastructure. They are typically offered as
services that enable communications within a corporation, among
business partners, or with customers.
Public VPNs emulate a private WAN using the public Internet
backbone with either point-to-point DSL, frame relay or
T1 access or dial-up.
- These networks enjoy the economic benefits of shared use.
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They leverage the public Internet using elaborate
security measures such as “tunneling” to ensure privacy.
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Public VPNs require special software at the
endpoints to ensure secure, private transactions.
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Public VPNs typically rely on the Internet
for most of their communications needs.
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The bandwidth and delay of a Public VPN is
unpredictable, because the bandwidth is shared with public Internet
traffic
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VPNs are private wide area network (WAN) solutions
that overlay the public Internet infrastructure. They are typically
offered as services that enable communications within a corporation,
among business partners, or with customers.
Network Designs, Inc. offers support for both types, Private
VPN and Public VPN:
| Compare: |
Private
VPNs |
Public
VPNs |
| Backbone
Architecture |
Private
IP-switched backbone |
Public
Internet |
| Access Cost |
Moderate |
Can be lower |
| Susceptible
to Public Internet Congestion |
No |
Yes |
| Security Measures Required |
Minimal |
Must use "tunneling" |
| Control
& Management |
Easily
managed from HQ |
Distributed
management |
| Bandwidth |
Guaranteed |
Uncertain |
| Delay |
Controlled |
Unpredictable |
| Special Software at Endpoints |
Not required |
Necessary, adds delay |
| Availability |
From Network
Designs, Inc. |
From Network
Designs, Inc. & Others |
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Network Designs, Inc. is focused on the emerging market for combined
Internet and VPN Service. Current users of dial modems, ISDN,
frame relay, DSL, legacy protocols and Point of Sale (POS) terminals,
are prime candidates for the lower-cost Network Designs, Inc. VPN
service products.
For a free Network Evaluation call us at 949-727-3393
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