Wireless Connectivity Trapeze Networks

Enterprise IT managers have good reasons to be wary of—and worried by—wireless LANs (WLANs). Despite corporate policies banning unauthorized IEEE 802.11 WLANs, end users are rolling them out in the office. The question isn’t if or when wireless will reach the enterprise. It’s here. The issue is who will control it. Users want to access apps from anywhere. IT managers want to implement secure, scalable enterprise-class WLANs. They’re understandably skittish about the lack of planning, deployment and management tools, as well as the way vendors treat WLANS as an add-on—freeing users while saddling IT with separate infrastructures.

Enterprise WLANs Done Right
Trapeze Networks’ Mobility System is the first scalable WLAN to deliver seamless integration, secure mobility and enterprise class planning, deployment and management tools. It consists of four elements: Mobility Exchange™ (MX™), a new class of networking device that lets users’ identities roam with them; Mobility Point™ (MP™); Mobility System Software™, which seamlessly integrates the wireless and wired infrastructures; and RingMaster™, a suite of Java-based tools.

For authentication, authorization and accounting (AAA), Trapeze is tightly coupled to various authentication servers.

The Trapeze Mobility System fulfills the three fundamental requirements of an enterprise WLAN. It eliminates the distinction between wired and wireless networks. It enables secure mobility, allowing users to work safely from anywhere. And it delivers a full suite of powerful, intuitive pre- and post-deployment planning and management tools.

Seamless Integration
The Trapeze Mobility System effortlessly integrates with conventional infrastructures, without adding backbone protocols and client software. Air becomes just another medium, like unshielded twisted-pair wire.

Identity-Based Networking is the key, allowing users to maintain the same set of access rights, virtual LAN (VLAN) and subnet memberships and other profiles whether they’re working wired or wireless. Roaming remains transparent; users only log on once. Trapeze can even track multiple devices per user, such as a laptop, PDA and digital phone.

  Mobile IP Service Set Identifier (SSID) per VLAN AAA-Based
End User Configuration Special client software or client proxy Must configure the right SSID; SSIDs are hidden Only one SSID to pick
Enforced VLAN Membership Yes, based on IP address No, only to one VLAN Yes, based on user authorization
Backbone Impact
Very large - New protocol on edge routers
Large - Push all 802.1Q VLANs down to APs None - Connect mobility
switch to backbone,
mobility switches tunnel
Scaling No deployments since inception (1995) Unproven Proven, millions; Example: AOL
Overhead Tunnel per user; route
table entry per user; IP address consumption
Every VLAN everywhere; Hidden SSIDs Optimized AAA (EAP processing; roamed AAA)

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