MODEL- DWS3227P           VENDOR- D-LINK
    
FEATURES- 24-port Stackable Gigabit Wireless Switch with PoE +10 Gg Uplinks
       L2+ Managed Wireless switch with (24) 10/100/1000Mbps Ports, (4) 
        Combo SFP Ports, 1 fixed XFP interface & (2) Optional 10-Gig 
        Copper/Fiber Uplinks plus PoE.
       The xStack DWS-3227P is 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. 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 comes standard with a 10 client AP license upgradeable to 
        25. And is capable of supporting 25 APs per switch/stack with up to 
        1500 WLAN clients.
* Centralized 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 configured independently. Now your entire wireless network can be 
   managed through a single interface. The xStack DWS-3250 includes support 
   for automatic discovery and configuration of APs with real-time 
   monitoring, providing visibility into utilization and performance of 
   WLAN users and devices.
* Security
   The 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. 802.1x 
   authentication provides secure network logins. Rogue AP detection and 
   containment ensure only the APs you install are able to function on your 
   network. AP detection allows identification of APs into "known" and 
   "rogue" classifications. If unknown APs are detected, the port where the 
   rogue APs were detected are blocked. The switch also uses the APs to 
   continuously scan radio channels in an attempt to identify transmissions 
   of unauthorized WLAN nodes facilitating notification, tracing, and or 
   jamming of the rogue signals.
* Seamless 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   the user's IP address is no longer valid after the move to the new AP.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 PDA s 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 
   configurations and support directly into the switch itself. This allows 
   the user to move between access points (within a single stack of up to 
   32 DWS-3227P switches) 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.
* IEEE 802.3af Power over Ethernet
   The DWS-3227P supports 24 ports of 802.3af Power-over- Ethernet and 
   supplies up to 15.4 watts per port to power any 802.3af compliant power 
   device. The need for Power over Ethernet enabled switching devices is 
   growing with the proliferation of PoE capable Access Points, IP phones, 
   and security cameras. The difficulty and cost often associated with 
   running new AC power outlets to difficult to reach locations has made 
   PoE an dispensable technology for SMBs, Schools, and Enterprise class 
   networks. When used in combination with PoE powered wireless access 
   points such as the DWL-2230AP and DWL-7230AP, deploying a centrally 
   managed wireless solution becomes even easier.
* Advanced Wired Functionality
   The xStack DWS-3227P supports a variety of features designed to provide 
   high-availability, redundancy and uptime. The xStack DWS-3227P supports 
   "Shortest-Path" switching, for improved network efficiency, an optional 
   Redundant Power Supply, and support for enterprise class networking 
   features such as cross stack 802.3ad Link Aggregation, DNA redundant 
   fail-over stacking, 802.1d, 802.1w, and 802.1s Multiple Spanning Tree 
   groups and a variety of network management options including: CLI, 
   Telnet, Web-based and SNMP v.1/v.2c/ v.3 management, RMON monitoring, 
   TFTP firmware upgradeability, Port Mirroring for troubleshooting, BootP, 
   and DHCP IP assignment. In addition, the xStack DWS-3227 also supports a 
   variety of advanced traffic management options including: Rate limiting 
   on ingress and egress down to 64k, Broadcast Storm Control, to protect 
   network connectivity in the event of a broadcast storm, and IGMP 
   Snooping, which 'snoops' all Internet Group Multicast Protocol (IGMP) 
   traffic, and prevents unwanted data streams from affecting network or 
   end-station performance. The xStack DWS-3227 also supports L2/3/4 QoS 
   and ACLs, Guest and Private VLANs, 802.1x user authentication and more.
    
  -- SPECIFICATIONs -----------------------------------
PERFORMANCE  - MAC Address Table Size : 16K 
               Switch Fabric          : 108Gbps 
               VLANs                  : Supports up to 4K VLAN Groups (port 
                                          based, 802.1Q, GARP/GVRP, 802.1v 
                                          protocol based).
               Priority Queues        : 8 Queues (802.1p/TOS/DiffServ) --
                                           Strict Priority or Weighted 
                                           Round Robin Queue Scheduling.
               Classification QoS ACLs: Based on: MAC, IP, TCP/UDP, 
                                          Payload, Port, DSCP, 802.1p.
               Routing                : 32 static routes 
               Multicast Support      : IGMP snooping 
               Predefined ACLs        : DoS Attacks, Trojan Horse, CPU DoS 
                                          Protection.
CONNECTORS   - (24) 10BaseT/100BaseTX/1000BaseT/RJ45 ports
               ( 4) Combo SFP ports (Small Form Pluggable)
               ( 2) slots for optional 10-Gig Copper/Fiber Uplinks
AP LICENSES  - 10 standard, Firmware upgradeable to 25
               Max allowed APs is 25 APs per Switch, 25 APs per Stack. 
WLAN         - Encryption: WPA, WPA2, WEP (64 & 128 bit) 
               Security  : 802.1x Authentication 
               Management: HTTP, HTTPS, Telnet, SSH, SNMP 
ROGUE AP DETECTION-
               Port Based & Radio Based 
ROAMING      - Supports Intra-Switch, Inter-Band, Inter-Switch 
802.11       - Supports 802.11a, 802.11b, 802.11g (based on supporting AP)
WIRELESS VLANS- 
               256 
SSIDs        - 16 concurrent SSIDs per AP 
SYSLOG EVENTS- Connection success/failure, station roaming/AP connection, 
                 error rates above threshold, encryption errors.
LOGGING FILTERS-
               Errors only, all events, per station, per AP 
ADDITIONAL   - Automatic Channel Assignment, Dynamic Load Balancing 
NETWORK PROTOCOL & STANDARDS-
               In Band & Out of Band: Telnet, CLI/Console, RMON, Web-based 
                       HTTP, SNMPv1/v2/v3, Syslog, Port Mirroring, TFTP 
                       Client, BootP Client, DHCP Client, BootP/DHCP Relay 
                       Agent, and DNS Client.
               IEEE: 802.3 Ethernet, 802.3u Fast Ethernet, 802.3ab Gigabit 
                       Ethernet, 802.3z Gigabit Ethernet, 802.3ak 
                       10GBASE-CX-4, 802.3ae 10GbE, 802.1d Spanning Tree, 
                       802.1w Rapid Spanning Tree, 802.1p Priority Tags, 
                       802.1q VLANs, 802.3ad Link Aggregation, 802.3x Flow 
                       Control, 802.1x Port-based Authentication, 802.1x 
                       MAC-based Authentication, 802.1s Multiple Spanning 
                       Tree, 802.1v protocol-based VLANs.
               IETF: RFC 1157 SNMP, RFC 1112/2236 IGMPv1/2, RFC 1757 RMON 
                       (4 Groups), RFC 1493 Bridge MIB, RFC 1213 MIB II, 
                       RFC 793 TCP, RFC 826 ARP, RFC 854 Telnet, Diffserv.
ACCESSORIES  - DWL2130AP     xStack 802.11g Access Point 
               DWL2230AP     xStack 802.11g Access Point with 802.3af PoE 
               DWL7130AP     xStack 802.11a/b/g Access Point 
               DWL7230AP     xStack 802.11a/b/g Access Point with 802.3af 
                               PoE.
               DEM411X       1-Port 10 Gigabit Fiber Module with XFP slot 
               DEM411T       1-Port 10 Gigabit 802.3ak Module with CX-4 
                               connector.
               DEM411S       Stacking Kit (2 DEM-411T modules & one 0.5 
                               Meter stacking cable).
               DEM310GT      Mini-GBIC/SFP 1000BASE-LX (up to 10Km) 
               DEM311GT      Mini-GBIC/SFP 1000BASE-SX (up to 550m) 
               DEM421XT      10GBASE-SR Multi-Mode XFP (up to 300m) 
               DEM422XT      10GBASE-LR Single-Mode XFP (up to 10km) 
               DPS600        500 Watt Redundant Power Supply 
               DS725         25 Access Point License 
APPROVALS    - CE Mark & FCC Class A 
               CE/LVD, UL Listed (UL1950)/CUL
POWER BUDGET - 375 watts
POWER SOURCE - 100-240VAC, 50/60 Hz Internal Universal Power Supply
DIMENSIONS   - 17.32"w x 1.77"h x 16.93"d (1U)      WT.- 14.33 lbs.
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