Specifications

2
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ExtremeWireless appliances enable role-based management for users,
devices, and applications with individualized services including quality
of service (QoS), call admission control, secure access policies, network
access control (NAC), captive portals, rate limiting, multicast, filtering, and
trac forwarding. These services are enabled by the unique and flexible
ExtremeWireless Virtual Network Service (VNS) architecture and easily
provisioned and managed by an intuitive web interface. Each appliance
supports mixed mode deployments of 802.11ac, 802.11n and 802.11a/b/g APs
along with the ability to seamlessly roam between wireless appliances and
access points, providing scalability and ease of deployment.
For large deployments, ExtremeWireless further simplifies the management
of thousands of APs by creating mobility zones that extend roaming across
multiple subnets and wireless appliances. Mobility zones maintain the VNS
definitions and the individual policies throughout the entire mobility zone,
ensuring that policies follow the user regardless of physical location for up
to 12,000 AP deployments. ExtremeWireless provides an easy, low-cost way
to deploy 802.11ac/abgn solutions, delivering cost-eective pricing, wired/
wireless integration, and low TCO while openly supporting a broad range
of mobile voice, video, and location-based applications to drive enterprise
productivity and reduce the overall cost of mobility. With the ability to
deliver both centralized and distributed trac forwarding by application,
ExtremeWireless Appliances enable a flexible, cost-eective path to
deploying 802.11ac/abgn for the enterprise. Backed by industry-leading
global support and services, ExtremeWireless solutions enable customers
to leverage existing investments and avoid forklift upgrades.
Virtual Network Service (VNS) –
An Adaptive WLAN Architecture
Most WLAN solutions force network administrators to choose between
a centralized or distributed architecture. A significant advantage of
ExtremeWireless Appliances is that they can support both deployment
models simultaneously, oering significant flexibility benefits over other
solutions. Network administrators can select how trac will be handled
on a per-SSID basis, without any restrictions, so that the wireless LAN
infrastructure can adapt to business requirements and applications.
A centralized architecture requires all trac to be backhauled to a
centralized appliance. With the higher data rates of 802.11ac and 802.11n
APs, trac loads on the wired network can be much greater than those
created by legacy 802.11a/b/g APs. Depending on the size of the WLAN
deployment and how much data is forwarded to the centralized appliance,
significant congestion may result.
A fully distributed deployment eliminates backhauling trac to a wireless
appliance but increases the processing complexity for real-time mobile
applications that require seamless cross-subnet roaming (e.g. VoWLAN).
This can force IT managers to either create a large broadcast domain or
apply many VLANs.
Security
• Authentication and authorization
functions include role-based
access control using 802.1X, MAC
authentication, and captive portal
• Standards-based encryption (WEP,
TKIP, WPA, WPA2, WPA- PSK, WPA2-
PSK, and AES)
• External captive portal allows full
customization for guest access
• Integrated wired and wireless
intrusion prevention
• Denial of Service (DoS) protection
for management, control, and
data trac
Support and Services
• Industry-leading customer satisfaction
and first-call resolution rates
• Personalized services, including site
surveys, network design, installation,
and training