User's Manual

1 Overview
6 Installation and User Guide: Airgo Access Point
• SNMP management interface through SNMPv3
• IEEE 802.11i standards
• User-authentication using EAP-TLS, EAP-PEAP, WPA-PSK, WEP
• Rogue AP detection
• Rogue client detection
VLANs
By decoupling traffic flow and network services from the physical network topology, virtual LANs
(VLANs) enable enterprises to improve network traffic flow, increase load, and deliver varying
levels of service and access to different groups of users. The Airgo AP VLAN feature readily
extends an existing wired VLAN structure to the wireless network. It can also be used to implement
new network privileges and services; for example, user VLANs are integral to the Airgo Networks
guest access feature (see “Guest Access” on page 7).
Airgo supports interface-based VLANs and user-based VLANs. Interface VLANs separate traffic
according to the Ethernet and radio interfaces on the Airgo AP. Packets destined for a specific
interface VLAN are directed to the port with that VLAN assigned. By contrast, user VLANs
separate traffic according to user groups. Users can be assigned to the same VLAN even if they are
in different physical LANs and at geographically dispersed locations. User VLANs are useful for
managing enterprise work groups and differentiating among categories of users. The Airgo Access
Point supports up to 16 VLANs, including a default VLAN.
Quality of Service
Quality of Service (QoS) features enable differential treatment of network traffic types to support
special applications or extend priority access to designated groups of users. For example,
applications such as streaming media and voice over IP (VoIP) suffer serious quality degradation if
data transmission is interrupted or bandwidth fluctuates excessively. You can assign higher service
quality to applications of this type, while maintaining adequate service for less intensive
applications such as print and file sharing. Network utilization is increased with little to no negative
effect on user productivity. QoS can also be used to lower the priority for non-critical applications.
For example, FTP transfers, which are generally not time critical but can consume significant
network bandwidth, can be assigned lower priority than streaming media applications or database
transactions.
QoS can also be assigned on a user group basis. For example, network administrators can be
assigned a higher service quality than other employees, thereby enhancing their ability to manage
and troubleshoot a heavily loaded network.
Airgo Networks implements QoS features using classes of service (COS). Eight COS levels are
available for assignment according to user, group, or application based rules. The COS approach
does not guarantee bandwidth, but it does give “best effort” priority according to the assigned level.
A flexible approach to service quality, it scales easily and accommodates a variety of mapping
rules. MAC layer mappings for COS levels and COS-to-IP layer mappings are supported, and
priority settings can be assigned for different COS mapping rules.
IP Routing
IP routing adds flexibility to AP management and expands the addressing capability of the AP. You
can specify static IP addresses outside the local subnet along with routing information to reach
those addresses.