D-Link DWS-3227 User Manual

DWS-3227P Layer 2+ Stackable Gigabit Wireless Unifi ed Switch

Advanced Switching Features:

+ Triple Optional Fiber XFP 10G Uplinking
+ Dual Optional Copper CX4 10G Uplinking
+ Up to 48Gbps Total Stacking Bandwidth
+ Physical Redundant Stacking
+ Stack Up to 16 Units Per Stack*
+ Optional Redundant Power Support
+ Up to 32 Static IP Routes
+ 802.3ad (Link Aggregation)
+ 802.1v (Protocol-based VLANs)
+ 802.1p Priority (8 WRR)
+ DiffServ QoS
+ 802.1x (Port-Based Authentication)
+ 4000 802.1q VLANs
+ IGMP Snooping
+ ACL L2/L3/L4
+ SNMPv1/v2/v3
+ Block Against Predefi ned DoS, Trojan,

Worm Attacks

+ IEEE802.3af Power over Ethernet

Unifi ed Wired/Wireless Platform:

+ 256 Wireless VLANs
+ Up to 50 APs per Switch/Stack
+ Up to 600 Simultaneous WLAN Users

per Switch/Stack
+ Supports 802.11a/b/g Standards
+ Seamless Wireless Roaming
+ Upgradable 10, 25, or 50 AP License
+ Industry Standard Encryption: WEP,

WPA™, WPA2™
+ Supports up to 16 SSIDs per AP
+ Centralized AP Management
+ GUI WLAN Monitoring & Logging
+ Automatic Channel Assignment
+ Dynamic WLAN Load Balancing
+ Rogue AP Detection & Containment

L2+ 24-Port Gigabit PoE Switch with 10 Gigabit Uplinks

Overview

D-Link’s xStack 3200 Series switches are designed to
provide effortless wireless technology convergence with
traditional Layer 2 data access switching, emphasizing
on security, performance, and resiliency. Featuring the
latest stacking technology from D-Link, the xStack
DWS-3227P can stack up to 16 units*, providing up to 400
Gigabit ports. It can stack with other D-Link switches such
as the DXS/DWS-3250, DXS/DWS-3227, and DXS/DWS-3227P,
providing extraordinary fl exibility. It provides 24 built-in
copper Gigabit ports, including 4 combo SFP ports for
easy, fl exible connection to fi ber-based Gigabit media. The
DWS-3227P is also equipped with 2 module slots that
support 10 Gigabit Ethernet for both copper CX-4 and fi ber
XFP connections, as well as 1 fi xed 10GbE XFP port. When
stacking through CX-4 interfaces, a stacking bandwidth
of 48Gbps can be achieved, for a total switching fabric
capacity of up to 120Gbps. In addition, the DWS-3227P
also supports IP static routing, 4000 VLANs, up to 64
trunk groups, and is ‘wireless-ready’, providing wireless
roaming, centralized AP management, and rogue AP
detection in a single switching solution. The DWS-3227P
comes standard with a 10 client AP license upgradeable
up to 50, and is capable of supporting 50 APs per switch
/stack with up to 600 WLAN clients.

Unifi ed Wired/Wireless Ready

In a mixed network of wired and wireless environments,
predictable coverage and security become paramount.
The need for a switching solution capable of addressing
these needs in both the wired and wireless environment
becomes key. The DWS-3227P is capable of meeting
this demand and more. With a simple optional fi rmware
upgrade, the DWS-3227P transforms from a standard Layer
2 switch into an integrated wired and wireless switching
solution capable of providing powerful wireless security,
easy deployment, the ability to detect rogue access points,
and centralized management for all compatible WLAN
components. Centralized management is crucial for
wireless technologies deployed in real-time inventory, data
mining, and an array of personal electronics that demand

* Future release

mobility and seamless integration such as PDA and 3G/VoIP
mobile phones. With an optional software upgrade, the
DWS-3227P becomes a wireless switch providing secure,
seamless roaming between access points ensuring clear,
uninterrupted data and voice communication throughout
your wireless network infrastructure.

DNA Stacking Architecture

Distributed Network Architecture (DNA) is a combination
of hardware and software that is embedded in D-Link’s
latest 3200 Series of xStack switches. Switches built
with DNA are easily stackable with little or no system
downtime for expansion. For example, the DWS-3200
Series switches are self-healing by quickly discovering
failures in the stack and re-routing traffi c to automatically
avoid the failed device and discover the new topology.
The fl exibility of DNA lets network designers choose the
right topology for connecting their devices whether it be
through a 10 GbE interface or using a 1000Base-X port to
connect between wiring closets. The DWS-3200 Series
switches can be used in a number of topologies such as
ring or chain stacking. When changes are made to the
stack, DNA automatically discovers the new topology and
reconfi gures the system to accommodate the changes.
In the unlikely event of equipment failure, the switches
rapidly reconfi gure the stack to avoid the failed switch,
resulting in extremely fast failover times and little to
no downtime. In addition, the DWS-3200 Series allows
the network administrator to maintain transparency of
system features such as Port Mirroring, VLANs, and
Link Aggregation across the stack. Unlike other stacking
solutions, this feature allows an administrator to add and
remove ports from VLANs without having to confi gure the
VLAN on each switch and without the added hassle of
creating VLAN trunks between devices. This also allows,
through the use of port mirroring, the ability to monitor any
port throughout the stack without having to be physically
connected to the same device. This fl exibility allows for
better troubleshooting, faster confi guration, and a lower
risk of confi guration errors.

DWS-3227P Layer 2+ Stackable Gigabit Wireless Unifi ed Switch

L2+ 24-Port Gigabit PoE Switch with 10 Gigabit Uplinks

Comprehensive Security

The DWS-3227P is equipped to handle many of today’s
emerging security vulnerabilities previously delegated
to only standalone fi rewalls. It incorporates built-in
ACLs for searching out and fi ltering such threats as:
Denial of Service attacks, Trojan Horses, Worms,
and more. Other access rules can also be set up to
prevent network and 802.1x authentication login. In
addition, port-based security can also be set up to
protect the integrity of the network. With the D-Link
Safeguard Engine, the DWS-3227P protects against
attacks towards the CPU itself and improves utilization
to meet existing network demands to maximize device
responsiveness to user confi guration activities.
In addition, well-known port numbers for allowed
applications can be pre-programmed, which will allow
these applications faster service and reduce the load
on the CPU.

High Availability

The DWS-3227P supports “Shortest-Path” switching,
which improves resiliency, uptime and network
effi ciency. It also supports an optional Redundant Power
Supply. It includes support for 802.3ad Link Aggregation,
and 802.1w Rapid Spanning Tree for increased network
reliability and availability.

Network Management

The DWS-3227P features a variety of network
management options: Console CLI, Telnet, Web GUI,
SNMPv1/v2/v3, and RMON. It also supports a variety of
advanced traffi c management options including: Layer
3 Static Routing, Bandwidth Control, Broadcast Storm
Control, Private VLANs, and support for IGMP Snooping.
D-Link’s exclusive DNA stacking technology is also
supported, which allows up to 16 D-Link DWS-3227P
switches to be stacked together and managed as a
single unit, regardless of its physical environment.

Advanced QoS

The DWS-3227P provides a robust and consistent set
of QoS/CoS, supporting 8 priority queues for 802.1p/
ToS/DiffServ, with classifi cation and marking based on
MAC SA/DA, IP SA/DA, and/or TCP/UDP. It also provides
extensive support for GARP/GVRP, 802.1q, and
port-based VLANs for up to 4000 groups per device.

Power over Ethernet IEEE 802.3af

Wherever the location—factory, warehouse, campus,
small offi ce, or enterprise facility—the challenge and
cost of running power to diffi cult-to-reach locations
in order to meet network design can become a
disruption to business and a drain on resources. To
solve this problem, the DWS-3227P is equipped with
24 10/100/1000BASE-T ports that support the 802.3af
PoE protocol. The DWS-3227P is designed to inject up
to 15.4 Watts of power per port on all 24 RJ-45 ports
to support IP Phones, Access Points, Cameras, and
more. The DWS-3227P provides amazing security and
fl exibility when utilizing the DWS-3227P’s ‘wireless
switching’ features. When used to power IEEE 802.3af
compliant wireless access points, such as the
DWL-2230AP or DWL-7230AP, this ‘wireless-ready’
switch transforms into a complete wireless enterprise
solution. For devices that are not 802.3af compliant, the
D-Link DWL-P50 adapter can be used to supply power
to the device making it fully compatible with any 802.3af
compliant switch. The DWS-3227P is ideal for today’s
popular PoE applications. Best of all, with 15.4 watts of
total power per port, the DWS-3227P will be capable of
providing power to future high wattage 802.3af devices
such as monitors, scanners, PDA cradles, cell phone
chargers and more, insuring a future proof network for
years to come.

Wireless AP License

The xStack DWS-3227P switch provides secure,
seamless roaming between access points ensuring
clear, uninterrupted data and voice communication
throughout your wireless network infrastructure. The
DWS-3227P supports an optional 10, 25, or 50 client AP
license and is capable of supporting up to 50 APs per
switch /stack with up to 600 WLAN clients.

Centralized AP Management

The xStack DWS-3227P is capable of centralized
management of compatible wireless access points.
No longer will each individual access point need to be
confi gured independently. Now your entire wireless
network can be managed through a single interface.
The xStack DWS-3227P includes support for automatic
discovery of APs with real-time monitoring, providing
visibility into utilization and performance of WLAN users
and devices.

Wireless Security

The D-Link xStack DWS-3227P provides Enhanced
Wireless Security features to ensure your data is
protected from hackers. Support for WEP, WPA™ and
WPA2™ encryption guarantees the privacy of your
network data. Rogue AP detection and containment
ensure that only the APs you install are able to function
on your network. AP detection allows identifi cation
of APs into “known” and “rogue” classifi cations. The
switch uses the APs to continuously scan radio channels
in an attempt to identify transmissions of unauthorized
WLAN nodes facilitating notifi cation and/or jamming of
the rogue signals.

Seamless Wireless Roaming

When a user roams between APs connected to
different broadcast domains, the user’s IP address is no
longer valid after the move to the new AP. This means
the user’s device (laptop, PDA, VoIP phone) will need to
change its IP address, thus breaking the active session.
With “always connected” devices such as VoIP phones
and PDAs this can create a huge problem. The need for
a solution to provide seamless roaming between APs
on different subnets becomes essential to maintaining
active sessions and VoIP calls.

The D-Link DWS-3227P addresses this problem by
bringing AP confi gurations and support directly into
the switch itself. This allows the user to move between
access points with seamless mobility. To the user’s PDA
or VoIP phone, the move appears as if it were between
APs on a single broadcast domain. This means the
user’s device will retain its VLAN membership and IP
address guaranteeing uninterrupted communication.

Inter-Switch Roaming

The xStack DWS-3227P supports roaming of wireless
stations between access points attached to different
switches. The seamless inter-switch roaming procedure
allows a station’s VLAN membership (IP subnet) and QoS
parameters to be retained when roaming between APs
connected to multiple switches throughout the network.
Inter-Switch roaming is an extremely benefi cial feature
when creating a large WLAN environment such as a
campus or multi-fl oor offi ce. Inter-Switch roaming allows
the user complete freedom to roam between switches
located in different buildings or on different fl oors without
disconnection or need for re-authentication.

* Future release