FEATURES- Business Series Smart Gigabit Ethernet Switch
       48-port 10/100/1000 Gigabit Smart Switch with 2 combo SFPs.
       Cost-effective, secure switching with simplified management for your 
        growing business!
       Linksys Business Series Smart Gigabit Ethernet Switches are cost-
        effective switching solutions ideal for small businesses, the 
        network edge, or workgroups within larger organizations. These 
        easy-to-install, high-speed switches offer many of the same Quality 
        of Service and Security features found in more expensive full 
        Layer 2 managed switches but without their complexity. The SLM2048 
        offers forty-eight (48) 10/100/1000 Gigabit Copper ports with two 
        (2) shared copper or optical (SFP) uplink interfaces for connecting 
        the switch to the core network. The SLM2048's simplified user 
        interface is an intuitive management tool enabling you to quickly 
        utilize the comprehensive feature-set of the switch, resulting in a 
        better optimized network. 
       Quality of Service -- The SLM2048 includes numerous QoS features to 
        ensure that traffic is prioritized properly to deliver the best 
        possible user experience for real time applications like voice and 
        video or bandwidth intensive graphic/video file uploads or 
        downloads. With its IGMP Snooping feature, the SLM2048 limits IP 
        multicast traffic (real time presentations, videoconferences, on-
        line gaming) to only the ports that have requested it enabling the 
        rest of the network to operate at peak efficiency. Additional QoS 
        capabilities like IEEE 802.1p Priority Tagging, DSCP 
        (Differentiated Services Code Point), and 4 hardware queues also 
        maintain quality for real-time applications like voice and video. 
        Network traffic can be optimized with the switch's 802.1q VLAN 
        (Virtual LAN) support which enables you to quickly segregate 
        network traffic by department or workgroup. VLANs also provide an 
        additional layer of security by keeping sensitive data separated 
        from other workgroups on the network. 
       Network Security is an absolute requirement for any business and 
        preventing unauthorized access to the company network is business-
        critical. The SLM2048 secures the network through 802.1X port 
        authentication which prompts end-users to provide their username 
        and password before they are permitted to pass data. User access 
        can also be controlled through the SLM2048's MAC Filtering 
        capability which allows network access only to those devices or 
        workstations that have been authorized as identified by their MAC 
        (Media Access Control) address. The Many-to-One or One-to-One Port 
        Mirroring feature of the SLM2048 enables you to monitor the type of 
        traffic being transmitted on the network. 
       Quick, foolproof network expansion -- The SLM2048 includes features 
        for quickly expanding and growing your network. To substantially 
        increase network throughput speeds, especially useful for companies 
        whose employees are routinely backing up their hard drives to a 
        company server or storage platform, the SLM2048 supports Link 
        Aggregation which allows multiple high-bandwidth trunks between 
        switches to be set up. Link Aggregation also provides a level of 
        availability and redundancy as traffic will continue to flow even 
        if one of the network links break. The SLM2048's Spanning Tree 
        Protocol support (STP) and Storm Control features help to control 
        planned or inadvertent cable loops when switches are connected to 
        one another. These loops can cause broadcast or multicast storms in 
        the network and severely limit its performance. With these 
        features, you can confidently build a mesh of switches and quickly 
        expand your network to support your growing workforce. 
    Includes Gigabit Smart Switch with 2 Combo SFPs, AC Power Cord, Rack 
       Mounting Kits with Bracket and Hardware, One CD with User Guide in 
       PDF Format, One Online Registration Card.
* Easy-to-use Web browser interface makes installation quick and effortless
* Grow your network with options like Link Aggregation, Spanning Tree and 
  Portfast.
* 802.1x port authentication and MAC address filtering brings network 
  security down to the switch port level.
* Basic QoS enables the network to be used for networked applications 
  including voice, video and data storage.
     
  -- SPECIFICATIONs -----------------------------------
CONNECTORs   - (48) 10BaseT/100BaseTX/1000BaseT/RJ-45 ports
               ( 2) Combo Ports with miniGBIC/SFP Slots
               Auto MDI/MDI-X
               Auto-Negotiate/Manual Setting
BUTTONS      - Reset Button
CABLE TYPE   - UTP CAT 5 or better for 1000BASE-T
INDICATORS   - LEDs for System, Gigabit Link/Act and Speed
PERFORMANCE  - Switching Capacity: 96 Gbps, non-blocking
               Forwarding Rate   : 71.42 Mpps Wire-Speed Performance
LAYER 2      - MAC table size    : 8K
               Number of VLANs   : 128 active VLANs (4096 range)
               VLAN              : Port-based and 802.1Q Tag-based VLANs
                                   Management VLAN
               HOL Blocking      : Head of line blocking prevention
MANAGEMENT   - Web User Interface: Built-in Web UI for easy browser-based 
                                     configuration (HTTP).
               Firmware Upgrade  : Web Browser upgrade (HTTP) and TFTP
               Port Mirroring    : Traffic on a port can be mirrored to 
                                     another port for analysis with a 
                                     network analyzer.
               Other Management  : Port Mirroring
                                   DHCP/BootP Client
                                   System Log
                                   Configuration Upload and Backup via HTTP 
                                     or TFTP.
SECURITY     - 802.1X - RADIUS Authentication. MD5 Encryption
               Port Security - MAC-Based Filtering
               Management Access Control
AVAILABILITY - Link Aggregation  : Link Aggregation using IEEE 802.3ad LACP
                                   Up to 4 Groups with up to 8 Ports per 
                                     Group.
               Storm Control     : Broadcast and Multicast
               Spanning Tree     : IEEE 802.1D Spanning Tree & Port Fast
               IGMP Snooping     : IGMP (v1/v2) Snooping provides for fast 
                                     client joins and leaves of multicast
                                     streams and limits bandwidth-intensive 
                                     video traffic to only the requestors. 
                                     Supports 32 multicast groups.
QoS          - Priority levels   : 4 Hardware queues
               Scheduling        : Priority Queuing and Weighted Round 
                                     Robin (WRR).
               Class of Service  : Port-based
                                   802.1p VLAN priority based
                                   IPv4/v6 IP DSCP based
STANDARDS    - 802.3 10BASE-T Ethernet, 802.3u 100BASE-TX Fast Ethernet,
                 802.3ab 1000BASE-T Gigabit Ethernet, 802.3z Gigabit 
                 Ethernet, 802.3x Flow Control, 802.3 ad LACP, 802.3af PoE,
                 802.1D STP, 802.1Q/p VLAN, 802.1X Port Access 
                 Authentication.
REQUIREMENTS - Web-Based Utility: Microsoft Internet Explorer (version 5.5 
                 or above) Web Browser.
               Cat5 Ethernet Network Cable
APPROVALS    - FCC Part15 Class A, CE Class A, UL, cUL, CE mark, CB
POWER SOURCE - Internal Power, 100~240 VAC
DIMENSIONS   - 17.32"w x 1.70"h x 13.58"d     WT.- 10.14 lbs.

Linksys Smart Switch, 48-Port 10/100/1000Mbps + 2-Combo Gig/SFP Slots.