D-Link DXS-3227P User Manual

DXS-3227P Layer 2+ Stackable Gigabit Wireless-Ready Switch with PoE

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 Authentication
+ 4000 802.1q VLANs
+ IGMP Snooping
+ ACL L2/L3/L4
+ SNMPv1/v2/v3
+ Block Against Prede ned DoS, Trojan,

Worm Attacks

+ IEEE 802.3af Power over Ethernet

Uni 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
+ Supports 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
DXS-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  exibility.
It provides 24 built-in copper Gigabit ports, including
4 combo SFP ports for easy, flexible connection
to fiber-based Gigabit media. The DXS-3227P is
also equipped with 2 module slots that support 10
Gigabit Ethernet for both copper CX-4 and  ber XFP
connections, as well as 1  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 DXS-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.

Uni 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 DXS-3227P is capable of meeting
this demand and more. With a simple optional  rmware
upgrade, the DXS-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 mobility and seamless integration such as

PDA and 3G/VoIP mobile phones. With an optional
software upgrade, the DXS-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 Networking 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 DXS-3200
Series switches are self-healing by quickly discovering
failures in the stack and re-routing traf c to automatically
avoid the failed device and discover the new topology.
The  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 DXS-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
recon gures the system to accommodate the changes.
In the unlikely event of equipment failure, the switches
rapidly recon gure the stack to avoid the failed switch,
resulting in extremely fast failover times and little to
no downtime. In addition, the DXS-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 con 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  exibility allows for
better troubleshooting, faster con guration, and a lower
risk of con guration errors.

* Future release

DXS-3227P Layer 2+ Stackable Gigabit Wireless-Ready Switch with PoE

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

Comprehensive Security

The DXS-3227P is equipped to handle many of today’s
emerging security vulnerabilities previously delegated
to only standalone rewalls. It incorporates built-in
ACLs for searching out and 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 DXS-3227P protects against attacks towards
the CPU itself and improves utilization to meet existing
network demands to maximize device responsiveness
to user con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 DXS-3227P supports “Shortest-Path” switching,
which improves resiliency, uptime and network
ef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.

Power over Ethernet IEEE802.3af

Wherever the location—factory, warehouse, campus,
small ofce, or enterprise facility—the challenge and
cost of running power to dif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 DXS-3227P is equipped with 24
10/100/1000BASE-T ports that support the 802.3af PoE
protocol. The DXS-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
DXS-3227P provides amazing security and exibility
when utilizing the DXS-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 PoE adapter can be used to supply power to
the device making it fully compatible with any 802.3af
compliant switch. The DXS-3227P is ideal for today’s
popular PoE applications. Best of all, with 15.4 watts of
total power per port, the DXS-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 Security

The D-Link xStack DXS-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 only the APs you install are able to function on
your network. AP detection allows identication of APs
into “known” and “rogue” classications. The switch
uses the APs to continuously scan radio channels in an
attempt to identify transmissions of unauthorized WLAN
nodes facilitating notication, and 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.

Network Management

The DXS-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 traf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 DXS-3227P
switches to be stacked together* and managed as a
single unit, regardless of its physical environment.

Advanced QoS

The DXS-3227P provides a robust and consistent set
of QoS/CoS, supporting 8 priority queues for 802.1p/
ToS/DiffServ, with classi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.

* Future release

Wireless AP License

The xStack DXS-3227P switch provides secure, seamless
roaming between access points ensuring clear,
uninterrupted data and voice communication throughout your
wireless network infrastructure. The DXS-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 DXS-3227P is capable of centralized
management of compatible wireless access points.
No longer will each individual access point need to be
congured independently. Now your entire wireless
network can be managed through a single interface.
The xStack DXS-3227P includes support for automatic
discovery of APs with real-time monitoring, providing
visibility into utilization and performance of WLAN users
and devices.

The D-Link DXS-3227P addresses this problem by
bringing AP congurations and support directly into
the switch itself. This allows the user to move between
access points with seamless mobility. To the users 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 DXS-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 upon roaming between APs
connected to multiple switches throughout the network.
Inter-Switch roaming is an extremely benecial feature
when creating a large WLAN environment such as a
campus or multi-oor ofce. Inter-Switch roaming allows
the user complete freedom to roam between switches
located in different buildings or on different oors without
disconnection or need for re-authentication.