D-LINK DXS-3250, GIGABIT, 10GIGABIT STACKABLE SWITCH...

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D-Link DXS-3250, Gigabit, 10Gigabit, Stackable, Wireless-Ready Switch...
(48Gigabit + 4SFP With Stacking Modules! Command Line Interface and GUI Managed.)#######################################################################

What Comes With The Switch?

- 48Gigabit Interfaces and 4 SFP Slots for Fiber Optic Implementation, Multi-mode and Single-mode.
- Dual DEM-411T Stacking Modules, CX4 Connector.
- Console Cable.
- Rack Brackets.
- AC Power Cord.
- Latest Firmware for the Switch is already installed, Version 1.1.0.11.
- Command Line Interface Manual, a PDF that consists of 581 Pages taking you step by step for anything you wanna configure.
- User Manual, a PDF that consists of 372 Pages that explain all details/setup of the switch, stacking technology, SFPs, - 10Gigabit Uplinks and more, even takes you step by step as well for the GUI Interface.
- Fully Tested, Inspected and comes with 90Days Full Replacement Warranty.


D-Links xStack® DXS-3250 Layer 2 switch features the latest stacking technology and is ideal for medium to heavy voice, video and data applications.

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-3250 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-3227, DXS/DWS-3227P, and DXS/DWS-3250, providing extraordinary flexibility. It provides 48 built-in copper Gigabit ports, including four combo SFP ports for easy, flexible connection to fiber-based Gigabit media. The DXS-3250 is also equipped with two module slots that support 10 Gigabit Ethernet for both copper CX-4 and fiber XFP connections. When stacking through CX-4 interfaces, a stacking bandwidth of 48Gbps can be achieved, for a total switching fabric capacity of up to 240Gbps. In addition, the DXS-3250 also supports IP static routing, 4000 VLANs, up to 64 trunk groups, and is wireless-ready, making the DXS-3250 the most feature rich, high capacity switching solution in its class by far.

Unified 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-3250 is capable of meeting this demand and more. With a simple optional firmware upgrade, the DXS-3250 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 has become 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-3250 becomes a wireless switch providing secure, seamless roaming between access points ensuring clear, uninterrupted data and voice communication throughout your wireless network infrastructure.

Comprehensive Security:
The DXS-3250 is equipped to handle many of today’s emerging security vulnerabilities previously delegated to only standalone firewalls. It incorporates built-in ACLs for searching out and filtering 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. Furthermore, the DXS-3250 protects against attacks towards the CPU itself and improves utilization to meet existing network demands to maximize device responsiveness to user configuration 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-3250 supports “Shortest-Path” switching, which improves resiliency, uptime and network efficiency. It also supports an optional Redundant Power Supply (DPS-500). It includes support for 802.3ad Link Aggregation, and 802.1w Rapid Spanning Tree for increased network reliability and availability.

Network Management:
The DXS-3250 features a variety of network management options: Console CLI, Telnet, Web GUI, SNMPv1/v2/v3, and RMON. It also supports a variety of advanced traffic 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-3250 switches to be stacked together* and managed as a single unit, regardless of its physical environment.

Advanced QoS:
The DXS-3250 provides a robust and consistent set of QoS/CoS, supporting eight priority queues for 802.1p/ToS/DiffServ, with classification 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.

Centralized AP Management:
The xStack DXS-3250 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 DXS-3250 includes support for automatic discovery APs with real-time monitoring, providing visibility into utilization and performance of WLAN users and devices.

Wireless Security:
The D-Link xStack DXS-3250 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 identification of APs into “known” and “rogue” classifications. The switch uses the APs to continuously scan radio channels in an attempt to identify transmissions of unauthorized WLAN nodes facilitating notification, 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 DXS-3250 addresses this problem by bringing AP configurations 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 DXS-3250 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 beneficial feature when creating a large WLAN environment such as a campus or multi-floor office. Inter-Switch roaming allows the user complete freedom to roam between switches located in different buildings or on different floors without disconnection or need for re-authentication.

Advanced Switching Features:
- Dual Fiber XFP 10G Uplinking (Optional)
- Dual Copper CX4 10G Uplinking (Optional, but already installed)
- Up to 48Gbps Total Stacking Bandwidth
- Up to 8 Units Per Stack
- Redundant Power Support (Optional)
- Up to 32 Static IP Routes
- 802.3ad (Link Aggregation)
- 802.1v (Protocol-based VLANs)
- Link Aggregation (64 groups/8 ports)
- 802.1p Priority (8 WRR)
- 802.1X Authentication
- 4000 802.1q VLANs
- IGMP Snooping
- ACL L2/L3/L4
- SNMPv1/v2/v3
- TACACS+ & RADIUS
- 802.1D/w/s Spanning Tree
- SSH/SSL
- Private/Guest VLANs


Unified Wired/Wireless:
- 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 Licenses
- Industry Standard Encryption: WEP, WPAâ„¢, WPA2â„¢
- 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

DXS-3250:
xStack Managed 48-Port Gigabit Stackable L2+ Switch, 4 Combo SFP, 2 10-Gig Slots (Optional AP License required)

MAC Address Table:
16K

Switch Fabric:
240Gbps

VLANs:
Supports Up to 4K VLAN Groups (Port-based, 802.1Q, GARP/GVRP, 802.1v Protocol-based Q-in-Q Tagging)

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

Multicast Support:
IGMP Snooping

End to End Flow Control:
Flow Control Across Packet Processors

Link Aggregation Balancing:
Based on MAC SA/DA, Based on IP SA/DA

MAC Table Search:
Search MAC/IP to reveal source Unit/Port

Port Utilization:
Measure Traffic, Total Port Capacity

Single Port Stacking:
Chain/Ring Topology


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