Adtran Bluesocket 1840 1700911F1 Manual Do Utilizador
Códigos do produto
1700911F1
2
www.adtran.com
■
800 615 1176
Today’s enterprise communicates wirelessly. Users now carry multiple devices that need to connect to the enterprise Wi-Fi network
from any point in the building and across the campus. These devices are mobile and are accessing applications that demand higher
bandwidth. Wireless connectivity in the enterprise has moved from the access of convenience to the access of choice. Traditional
enterprise wireless networks were designed before the explosion of Wi-Fi enabled devices and are now straining under the demand to
support more devices, more access points, wider mobility, and greater bandwidth. A more scalable, cost-effective solution has emerged
that leverages the power of virtualization to solve the scale challenges of the enterprise wireless network.
from any point in the building and across the campus. These devices are mobile and are accessing applications that demand higher
bandwidth. Wireless connectivity in the enterprise has moved from the access of convenience to the access of choice. Traditional
enterprise wireless networks were designed before the explosion of Wi-Fi enabled devices and are now straining under the demand to
support more devices, more access points, wider mobility, and greater bandwidth. A more scalable, cost-effective solution has emerged
that leverages the power of virtualization to solve the scale challenges of the enterprise wireless network.
Next Generation Wireless Solution
vWLAN
ADTRAN has developed and introduced the next
generation enterprise wireless solution: vWLAN.
vWLAN eliminates the scaling constraints imposed
on the enterprise wireless network by eliminating the
hardware controller and instead virtualizing the con-
trol and management of the network to run as soft-
ware on a hypervisor. This fundamental shift brings
extraordinary benefits.
generation enterprise wireless solution: vWLAN.
vWLAN eliminates the scaling constraints imposed
on the enterprise wireless network by eliminating the
hardware controller and instead virtualizing the con-
trol and management of the network to run as soft-
ware on a hypervisor. This fundamental shift brings
extraordinary benefits.
Scalability
In conventional controller-based networks, scale is
tied to a single purpose device which is the hard-
ware controller. Adding more users and more access
points causes the enterprise to buy a bigger controller
or add additional controllers. The introduction of
802.11n, which increases bandwidth demand three
to five fold, also drives the need to buy larger con-
trollers. vWLAN breaks this constant upgrade cycle.
Most large hardware controllers support approxi-
mately 150 access points and 4,000 users. A single
software instance of vWLAN supports 1,500 access
points and 48,000 users.
tied to a single purpose device which is the hard-
ware controller. Adding more users and more access
points causes the enterprise to buy a bigger controller
or add additional controllers. The introduction of
802.11n, which increases bandwidth demand three
to five fold, also drives the need to buy larger con-
trollers. vWLAN breaks this constant upgrade cycle.
Most large hardware controllers support approxi-
mately 150 access points and 4,000 users. A single
software instance of vWLAN supports 1,500 access
points and 48,000 users.
Second, a centralized physical controller is a
target for malfeasance. This device is in the data
path and, therefore, serves as a convenient point
to intercept traffic. vWLAN eliminates this vulner-
ability by keeping the data sessions on the LAN.
Only control traffic is centralized. And this cen-
tralization occurs in the enterprise data center as
opposed to a single server
path and, therefore, serves as a convenient point
to intercept traffic. vWLAN eliminates this vulner-
ability by keeping the data sessions on the LAN.
Only control traffic is centralized. And this cen-
tralization occurs in the enterprise data center as
opposed to a single server
Reliability
ADTRAN’s vWLAN brings wireless reliability to a
whole new level. In vWLAN, the user data stream
or data plane is separated from the control infor-
mation about the data session. This separation
of the control plane and data plane increases the
reliability. In the conventional controller-based
approach, any failure in the control plane inter-
rupts the data plane. In vWLAN, the data session
is the priority. The control plane can be complete-
ly lost and the user data sessions remain intact.
whole new level. In vWLAN, the user data stream
or data plane is separated from the control infor-
mation about the data session. This separation
of the control plane and data plane increases the
reliability. In the conventional controller-based
approach, any failure in the control plane inter-
rupts the data plane. In vWLAN, the data session
is the priority. The control plane can be complete-
ly lost and the user data sessions remain intact.
In conventional controller based networks, scale
comes at a high price both in terms of Opex and
cApex because a single-purpose server is required.
This is not the case with vWLAN. With vWLAN, the
controller is software on a hypervisor. The cost of this
virtual control software is zero.
cApex because a single-purpose server is required.
This is not the case with vWLAN. With vWLAN, the
controller is software on a hypervisor. The cost of this
virtual control software is zero.
Security
Virtualization not only unlocks cost effective
scalability but it also enhances the security of
enterprise wireless networks. Traditional controller-
based networks have two security vulnerabilities.
First, unwanted traffic actually enters the LAN
through the thin, unintelligent access point. Only
until the traffic reaches the controller is unwanted
traffic discarded. Why bring unwanted and
potentially harmful traffic onto the network? With
conventional WLAN architecture, there is no other
choice, but vWLAN provides a more secure solution.
vWLAN uses intelligent access points that operate
a stateful firewall. Unwanted traffic is turned away
at the access point before it enters the network and
becomes a security problem.
scalability but it also enhances the security of
enterprise wireless networks. Traditional controller-
based networks have two security vulnerabilities.
First, unwanted traffic actually enters the LAN
through the thin, unintelligent access point. Only
until the traffic reaches the controller is unwanted
traffic discarded. Why bring unwanted and
potentially harmful traffic onto the network? With
conventional WLAN architecture, there is no other
choice, but vWLAN provides a more secure solution.
vWLAN uses intelligent access points that operate
a stateful firewall. Unwanted traffic is turned away
at the access point before it enters the network and
becomes a security problem.