MODEL- DES-3852           VENDOR- D-LINK
   
FEATURES- xStack Stackable, Multilayer, Rack-mount Switch
       Managed Layer 2/3/4 Switch with (48) 10/100 Mbps Ports, (2) Combo 
        SFP/1000BASE-T Ports, & (2) Built-in 1000BASE-T Uplinks.
       For the SMB requiring a cost effective core switching solution, as 
        well as for larger Enterprise and Metropolitan Service Providers 
        (MSP) environments needing a managed, feature rich switch capable 
        of uplinking to backbone switches, the xStack DES-3852 is designed 
        to meet the needs of the most demanding departmental and enterprise 
        connectivity applications. 
       The D-Link xStack DES-3852 Switch is a fully managed Layer 3 switch 
        that provides (48) 10/100Mbps Fast Ethernet ports and (2) Combo 
        SFP/1000BASE-T Gigabit Ethernet ports. In addition, (2) fixed 
        1000BASE-T ports in the back-panel can provide a dedicated trunk 
        connection between devices or core switches. The xStack DES-3852 
        also provides virtual stacking functionality via D-Link SIM 
        technology allowing up to 32 units to be managed via a single IP 
        address.
       With support for Q-in-Q Double VLAN tagging, IPv6 aware, Dynamic 
        Layer 3 Routing, IEEE802.1s, and bandwidth control, the xStack 
        DES-3852 incorporates advanced features suitable for the MSP as 
        well as the SMB and Enterprise size network.
* Metro Switching
   Service provider networks are moving from circuit-based access to newer 
   packet-based access that will require highly reliable intelligent 
   switching, and at the same time demand resiliency and dependability. The 
   xStack DES-3852 meets this demand by supporting industry standards for 
   802.1s (multiple spanning tree), 802.3ad link aggregation for up to 32 
   groups, bandwidth rate limiting down to 64k, and support for an external 
   redundant power option for added peace of mind. In addition the xStack 
   DES-3852 offers Double VLAN Q-in-Q tagging, which adds on an additional 
   tag to a VLAN tag, expanding the VLAN space and allowing service 
   providers to deploy their service quickly and securely. The xStack 
   DES-3852 also incorporates advanced QoS support such as the ability to 
   filter and forward traffic based on Layer 2/3/4, making it an ideal 
   choice for VOIP, video, and audio services targeting business class 
   customers.
* Advanced L3 Routing
   The xStack DES-3852 is a high performance Layer 3 switch that provides 
   an ideal solution by offering advanced Layer 3 routing features such as 
   RIP, OSPF, VRRP, up to 5 IP addresses per VLAN, and floating static 
   routes. Policy Based routing (which forwards traffic based on L3/L4 
   SA/DA) and Multi-Path Routing (which is the method of establishing 
   multiple paths between given source-destination nodes within a network.) 
   are also features supported on the xStack DES-3852. These added routing 
   features provide redundancy, improve network utilization, and provide 
   load balancing for the network.
* Comprehensive Security
   The DES-3852 incorporates an advanced portfolio of security features 
   designed to protect your network from malicious attack. SSH & SSL 
   encrypted management guarantee secure private configuration and 
   monitoring when using the Graphical User Interface and Command Line. IP 
   to MAC binding prevent unauthorized devices from accessing network 
   resources. 802.1x port and MAC based authentication help provide added 
   network security by requiring all users attempting to connect to your 
   network, provide a username and password. This username and password 
   must then be authenticated on a RADIUS or TACACS+ server thus insuring 
   only authorized users have access to the network. Access control lists 
   based on Layers 2/3/4, Rate Limiting, and Guest VLANs provide even more 
   control over what and how users access the network. Finally with 
   D-Link's CPU Safeguard Engine, the DES-3852 is protected from Broadcast, 
   Multicast, and Unicast flooding which in turn guarantees the DES-3852 is 
   not crippled by DoS attacks.
   
  -- SPECIFICATIONs -------------------------------------
PERFORMANCE  - Packet Buffer        : 32MB
               MAC Address Table    : 16,000
               IP Address Table     : 4K 
               IP Routing           : 128 static/16k total 
               Aggregated Bandwidth : 17.6Gbps 
               Transmission Method  : Store-and-Forward 
               Forwarding Rate      : 14,880pps (10M), 148,800pps (100M), 
                                        1,488,000pps (1000M) 
               VLANs Support        : up to 4K static, 255 dynamic 802.1p 
                                        VLAN Groups.
               Priority Queues      : 8 Queues - Strict Priority or Weight 
                                        Round Robin Queue Scheduling.
               Classification ACLs  : MAC Address, IP Address, TCP/UDP Port 
                                        Number & payload, physical port, 
                                        DSCP, 802.1p,VLAN, protocol type.
               Classification QoS   : MAC Address, IP Address, TCP/UDP Port 
                                        Number, physical port, DSCP, ToS.
               Multicast Support    : IGMP v1/2/3, IGMP Snooping 
               Jumbo Frames         : up to 9K 
               # of IP Interfaces   : 64
               Multicast Duplication: Hardware packet replication on 8 
                                        VLANs on FE ports and 32 VLANs on 
                                        GE ports.
               Port Security        : Supports 16 MAC addresses per port,
                                        Radius and TACACS+ Authentication, 
                                        SSH v2, SSL v2, 802.1x port/MAC 
                                        based.
               Broadcast Storm 
                   Bandwidth Control: Minimum Granularity: 128pkt/s 
               MAC-IP Binding       : Supports 500 entries per device 
               CPU Protection       : Protect CPU from Broadcast/Multicast/
                                        Unicast flooding.
               CPU Monitoring       : Utilization via Web/CLI/SNMP. Trap/
                                        Logging notification when 
                                        configurable threshold reached. 
               0.0.0.0 IP Setting   : Prevents device from occupying an IP 
                                        address.
               802.3ad Link 
                         Aggregation: Up to 32 groups, 8 ports per group 
               Stacking             : Single IP management up to 32 units 
               LED Status Lights    : Per Device: Power, Console (to 
                                        indicate login through RS-232 
                                        port), RPS, Link/Act/Speed. 
CONNECTORS   - (48) 10BaseT/100BaseTX/RJ45 ports
               ( 2) Combo SFP/1000BASE-T Ports
               ( 2) Built-in 1000BASE-T Uplinks
NETWORK MANAGEMENT- (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 Client, IEEE 802.3 Ethernet, 802.3u 
                 Fast Ethernet, 802.3ab Gigabit Ethernet, 802.3z Gigabit 
                 Ethernet, 802.1d Spanning Tree, 802.1w Rapid Spanning 
                 Tree, 802.1p Priority Tags, 802.1q VLANs (4K static/ 255 
                 dynamic), 802.3ad Link Aggregation (32 Groups/8 ports), 
                 802.3x Flow Control, 802.1x Port-based /MAC based 
                 Authentication, 802.1s (Multiple Spanning Tree, WRED 
                 congestion control, STP loopback prevention, GVRP, Guest 
                 VLAN*, Per port limit IP multicast address range, Web GUI 
                 Traffic Monitoring, Web MAC address Browsing, SNMP Trap on 
                 MAC Notification, DHCP Relay Option, DHCP Auto-
                 configuration, Trap/Alarm/Log Severity Control, Dual 
                 Image, Dual Configuration, Port Description, Editable 
                 Login Banner, Editable System prompt, Virtual Interface/
                 Loopback Interface, CPU Interface Filtering (Software ACL)
STANDARDS    - IETF: RFC 1157 SNMP, RFC 1112/2236 IGMPv1/2 IGMPv31
                     RFC 1757/2021/2819 RMON (4 Groups), RFC 1493 Bridge 
                       MIB, RFC 1213 MIB II, RFC 793 TCP, RFC 826 ARP, 
                       RFC 854 Telnet, and DiffServ, RFC 1724 RIP v1/2, 
                       RFC 1850 OSPF1, DVMRP, RFC 2934 PIM-DM, PIM-SM, 
                       RFC 2932 Multicast Routing, RFC 2787 VRRP, RFC 2096 
                       IP Forwarding Table, RFC 2618/2620 RADIUS Client, 
                       RFC 2863 IF MIB, RFC 2674 802.1p MIB, RFC 2668 802.3 
                       MAU MIB, RFC 2665 ether-like MIB, SSH, SSL, TACACS+.
ACCESSORIES  - DEM310GT  1000BASE-LX 3.3V Mini GBIC Up to 550m (Multimode)
                                                    Up to 10km (Singlemode)
               DEM311GT  1000BASE-SX 3.3V Mini GBIC, Up to 220m/550m 
                                                      (Multimode) 
               DPS200    Redundant Power Supply   
               DPS800    2-Slot Redundant Power Supply unit Chassis support 
                           for DPS-200.
APPROVALS    - CE Class A, FCC Class A, VCCI Class A, C-Tick Class A
               CSA International, CB Report
POWER SOURCE - AC Input: 100 - 240 VAC, 50/60 Hz Internal universal power 
                           supply.
               Consumption 47 watts
DIMENSIONS   - 17.36"w x 1.73"h x 12.16"d       WT.- 8.6 lbs.
               19" rack-mount width, 1U height
    www.dlink.com         
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