Datasheet

each user’s authentication information
and associated policies are shared with
other 2300 Series Security Switches so
that the delay of re-authen tication during
roaming is eliminated. This allows users to
maintain a voice quality connection while
roaming within a particular area, between
floors and even building-to-building.
Self-healing, resilient design
minimizes service disruption
EachWLANSecuritySwitchmaintains
a map of RF characteristics within its
service domain. In the event of an access
point failure, the WLAN Security Switch
will immediately recognize the change in
RF patterns and respond by increasing
transmission power levels of surrounding
access points to fill the coverage hole.
Similarly, if an access point is temporarily
handicapped by a physical obstruction, the
system will respond to minimize service
disruption. The WLAN Security Switch
hardware is also designed for resiliency with
dualpowersupplies,Multi-LinkTrunking,
active-standby architecture options and n+1
redundancy for access point connectivity to
eliminate any single points of failure within
the system.
Clustering Support
Security switches can be configured in a
cluster allowing them to act as a single
virtual switch for wireless configurations
and AP load balancing, which provides
for automatic redundancy. This makes it
easier to scale and improves resiliency. This
capability solves most of the problems often
faced by large-scale enterprises by providing
a single point of configuration, automatic
AP failover without client connection loss
and AP load balancing.
WLAN 2300 Series
Access Points
The WLAN Access Point 2332 is a
multi-mode, dual-radio 802.11 a/b/g unit.
It is controlled by the WLAN Security
Switches and can be deployed in large
7
Figure 6.
WLAN Access Points
users connect to a particular access point,
individual performance suffers and system
capacity is reduced significantly. The
WLAN 2300 Series continually monitors
user load and will automatically redirect
new users to alternative access points and
deliver the best possible user performance
for given conditions.
Seamless fast roaming
enables uninterrupted voice
and multimedia services
The WLAN 2300 Series allows seamless
roamingbetweenallaccesspoints.Mobile
clients can roam between access points
belonging to different subnets and even
between those managed by a different
WLAN Security Switch. Additionally,
Figure 7. Clustering diagram
Feature
Nortel
WAP 2332
Trapeze
MP-432
Others
Dual radio 802.11n (3x3 MIMO) No Yes Yes
Dual radio 802.11a/b/g Yes No Ye s
P-MP Wireless Bridging Yes Yes No
Dual Ethernet ports Yes Yes No
Local trafc forwarding Yes Yes No
Fully compatible with existing
WLAN 2300 systems
Yes Yes No
Hot Stand-by Back-up switch
Switch A Switch CSwitch B
Today’s limited approach
Clustered approach
Discrete switches operate independently
>>>>>
Clustered switches — act collectively as single virtual switch
Harder to scale
>>>>>
Easy to scale — Capacity can be added in chunks, anywhere in
the network
Limited resiliency — APs mapped directly to switch
>>>>>
Highest resiliency — APs dynamically map to switches —
optimized, auto AP load balancing
Difcult to manage, highest cost of ownership
>>>>>
Easiest to manage, lowest cost of ownership