DES-3350SR.pdf

10/100Mbps L3 Switch

DES-3350SR

48 10/100Mbps ports plus 2 combo

1000BASE-T/SFP (Mini GBIC) in a low-profile

rack-mountable box.

48-port Layer 3 10/100Mbps Switch

With 2 Combo Copper Gigabit/SFP (Mini GBIC) & Redundant Power Support

The DES-3350SR is a high-performance Layer 3 10/100Mbps switch that provides an ideal solution for high-density enterprise

applications. With 48 10/100Mbps ports and 2 combo 1000BASE-T/SFP (Mini GBIC) slots this switch is designed to meet the

demanding need of departmental and enterprise applications requiring high density, low-profile solution. The DES-3350SR

supports a redundant power option via an external redundant power supply for maximum network reliability.

48 10/100Mbps Ports for Workstation Connection

Seamless Integration

The switch provides 48 10/100Mbps ports supporting auto-

sensing and auto-negotiation of network speeds and full/half

duplex. These ports can connect to workstations and print

servers, giving each a dedicated bandwidth. All ports

support auto MDI/MDIX, allowing you to connect to

workstations, servers, or other switches from any port

without the need to change your usual straight-through

twisted-pair cables.

The DES-3350SR can be instantly integrated into any existing

network for seamless integration of Layer 2 and Layer 3

packet switching. With multi-layer support for every port, you

can start with Layer 2 switching, then upgrade to Layer 3

routing anytime by simply re-configuring the ports. You can

flexibly segment the network into domains and sub-domains,

using (1) subnet IDs and user IP numbers to route traffic, and

(2) custom filters based on users' physical MAC addresses to

filter extraneous traffic. At Layer 2, the switch uses auto-

learned and user-defined MAC addresses to discard and

forward packets. At Layer 3, it looks at the user-specified

routing table to route packets to their destinations.

Copper Gigabit for Servers

The copper Gigabit provides an inexpensive alternative

solution to fiber-optic. Using your existing low-cost Cat. 5

copper twisted-pair wires as the transmission media, these

ports allow you to instantly upgrade your servers to Gigabit

capability without requiring you to install new, expensive

fiber cables. The ports support 10/100/1000Mbps network

speed auto-sensing, full/half duplex and auto MDI/MDIX.

Ready for Multi-media Applications

With Priority Queues and IP multicast (IGMP snooping)

support, Quality of Services (QoS) can be guaranteed for

successful execution of delay-sensitive applications like video

conference.

2 Combo SFP (Mini GBIC) for Flexible Fiber

Connection

Flow Control to Prevent Packet Loss

2 SFP (Mini GBIC) slots are provided for flexible fiber

connection. You can select to install optional transceiver

modules in these slots for 1000BASE-SX short/medium-

distance or 1000BASE-LX long-distance fiber backbone

attachment. Use of the SFP will disable their

corresponding built-in copper 10/100/1000Mbps copper

connections.

The switch supports standard IEEE 802.3x Flow Control.

Working in conjunction with buffer overrun auto-detection,

this full-duplex data transfer mode provides protection against

possible data loss for 802.3x supported servers directly

connected to the switch.

(Mini GBIC)

Port Trunks for Aggregated Bandwidths

With low cost per port, port trunking provides an easy and

economical alternative solution for server connection to attain

Gigabit bandwidth. Up to 8 10/100Mbps ports can be

combined together to create a load-sharing aggregated

bandwidth to a server.

Wire-speed IP Routing

The switch is designed for basic IP routing, with instant

support for Windows, Unix and Internet environments. It

provides wire-speed non-blocking switch fabrics with

hardware-based packet filtering/forwarding. Packet routing

is performed by on-board ASICs at speeds many times faster

than CPU-based routers.

DES-3350SR

Technical Specifications

10/100Mbps L3 Switch

VLANs for Enhanced Security & Performance

IGMP Snooping for Broadcast Control

VLANs improve security and bandwidth utilization by

limiting the broadcast domains and confining intra-group

traffic within their segments. To segment up the network,

workstations supporting IEEE 802.1Q VLAN Tagging

connected to the switch can be grouped into different

Virtual LANs (VLANs). The switch also supports GVRP

(GARP VLAN Registration Protocol) for automatic VLAN

configuration distribution.

The switch listens to IGMP (Internet Group Management

Protocol) messages to build mapping table and associate

forwarding filters. It dynamically configures the switch ports

to forward IP multicast traffic only to those ports associated

with multicast hosts.

Broadcast Storm Control

To prevent too many broadcast/multicast packets from

flooding the network, broadcast/multicast storm control is

configured to screen excessive traffic. Threshold values are

available to control the rate limit for each port. Packets are

discarded if the respective count exceeds the configured

upper threshold in a given time interval. The possible range of

upper threshold is from 0 to 255k packets per second.

Advanced Network Access Management

802.1x features enable user authentication for each network

access attempt. Port security features allow you to limit the

number of MAC addresses per port in order to control the

number of stations for each port. Static MAC addresses can

be defined for each port to ensure only registered machines

are allowed to access. By enabling both of these features,

you can establish an access mechanism based on user and

machine identities, as well as control the number of access

stations.

Port Mirroring

This function allows you to mirror adjacent ports for the

purpose of analyzing incoming and outgoing packets where

packet patterns can be studied.

Multi-layer Access Control List (ACL)

802.1D Spanning Tree Compatible & 802.1w Rapid

Spanning Tree Support

Access Control Lists (ACL) allow the network

administrator to define policies on network traffic control.

The switch supports comprehensive and multi-layer ACLs,

providing a powerful tool for network management. For

example, the switch can be set to block malicious bulk

traffic from specific clients (based either on MAC or IP

addresses). Or during a virus attack, the switch can be set to

restrict its flooding based on a virus's unique pattern

(TCP/UDP port number).

For mission critical environments with multiple switches

supporting Rapid STP, you can configure the stack of

switches with a redundant backup bridge path, so

transmission and reception of packets can be guaranteed in

event of any fail-over switch on the network.

Multiple Management Interfaces

SNMP v.1, v.2c, v.3 network management is supported, using

the built-in MIBs. RMON monitoring and SYSLOG are

provided for effective central management. The switch also

provides a Command Line Interface (CLI) and a Web-based

GUI. CLI enables quick system configuration for

administrators familiar with command line operation. The

embedded Web-based interface allows you to easily access

the switch from anywhere on the network and troubleshoot it

in real-time. You can, for example, browse the MAC address

table via the Web browser and perform searching to identify

the location of any workstation. Port utilization graphs

provide real-time traffic monitoring and diagnostic

information.

Advanced QoS Support

The switch supports not only Layer 2 802.1p Priority

Queue control, but also a variety of ways to prioritize

network packets. Multi-layer information from L2 to L4

can be used to classify packet priorities. This function

support allows you to attach IP telephony devices or video

servers to the switch to run delay-sensitive applications like

video conference.

Flexible Transmission Scheduling

The switch supports 2 methods of packet transmission

scheduling: Strict Priority Queuing and Weighted Round-

Robin (WRR). You can select to use Strict Priority Queuing

to strictly enforce your priority queues, or WRR to address

bandwidth limitations at peak time. WRR allows each

queue to be assigned a different percentage of the output

port's bandwidth, so that lower-priority queues are not

denied access to buffer space and port bandwidth.

Redundant Power Support

The switch can be connected to a DPS-200 external power

supply for redundant power backup purposes. In case the

built-in internal power supply fails, the redundant power

supply unit will automatically provide all the required power

to ensure continuous operation.

Features

48 10/100Mbps ports

2 combo 10/100/1000Mbps/SFP (Mini GBIC) slots

Redundant power backup support

Auto MDI/MDIX for all twisted-pair ports

Port trunks of up to 8 Fast Ethernet ports, supporting

802.3ad LACP

IP routing supporting RIP-1, RIP-2, OSPF routing

protocols, DVMRP, PIM Dense mode

Supports 802.1Q VLAN, IGMP snooping, 802.1p

Priority Queues, port mirroring

Multi-layer ACL and QoS support

Administrator-definable port security

802.1x port-based/MAC-based access control

Per-port bandwidth control

Broadcast storm control

802.3x Flow Control

802.1D compatible and 802.1w Spanning Tree for

redundant backup bridge paths

SNMP v.1, v2c, v.3 network management, RMON

monitoring

DES-3350SR

Technical Specifications

10/100Mbps L3 Switch

Performance

Hardware

Transmission Method

Store-and-forward

MAC Address Table

8K entries per device

Number of Ports

- 48 auto-sensing 10/100Mbps ports

- 2 combo 10/100/1000Mbps/SFP (Mini GBIC) slots

LED

- Power (per device)

- Console (per device)

- RPS (per device)

- Link/Act (per port)

MAC Address Learning

- Dynamic entries: automatic update

- Static entries: user-defined

Routing Table

2K entries per device

Port Functions

- IEEE 802.3 10BASE-T/802.3u 100BASE-TX, 802.3ab 1000BASE-T

standards

- Auto-sensing speed with ANSI/IEEE 802.3 NWay auto-negotiation

- Full/half duplex for 10/100Mbps speed

- Full duplex for 1000Mbps speed

- IEEE 802.3x Flow Control in full-duplex, back pressure in half-duplex

- MDI/MDIX auto-sensing per port

- 10BASE-T cables:

UTP Cat. 3, 4, 5 (100 m max.)

- 100BASE-TX, 1000BASE-T cables:

UTP Cat. 5 (100 m max.)

Layer 2 Packet Forwarding Rates (half duplex)

- Ethernet: 14,880 pps per port

- Fast Ethernet: 148,810 pps per port

- Gigabit Ethernet: 1,488,100 pps per port

Layer 3 Packet Forwarding Rate (half duplex)

10.1Mpps

Memory

64 MB SDRAM packet buffer

Software

Configuration & Management

IP Routing

- IP v4 support

- IP Fragmentation support

- Routing protocols supported:

Static routing

RIP-1, RIP-2

OSPF v.2

Management Methods & Standards

- SNMP management v.1, v.2c, v.3

- Web-based management (via web browser)

- RMON monitoring

- Telnet (up to 8 sessions)

- CLI (command line interface)

VLAN

- IEEE 802.1Q Tagged VLAN

- Number of VLANs: 255 per device (max.)

Management Security

Password enabled

MIBs

- MIB-II (RFC 1213)

- Bridge MIB (RFC 1493)

- RMON MIB (RFC 1757)

- RIP (RFC 1724)

- OSPF (RFC 1850)

- CIDR (RFC 2096)

- 802.1Q VLAN MIB (RFC 2674)

- IGMP MIB (RFC 2833)

- If MIB (RFC 2233)

- Ethernet-like MIB (RFC 2358)

- D-Link enterprise MIB

Spanning Tree

- 802.1D Spanning Tree compatible

- 802.1w Rapid Spanning Tree

Multicast

- IGMP v2

- IGMP Snooping

- DVMRP

- PIM-DM

Priority Queues (CoS)

- Standard: IEEE 802.1p

- Number of queues: 4

RMON Groups

1, 2, 3, 9 (Alarm, Statistics, History, Event)

Traffic Classification (CoS)

Can be based on user-definable application types:

- TOS

- Diffserv (DSCP)

- MAC address

- IP address

- TCP/UDP port number

IP Number Self-identification

- DHCP client

- Bootp client

Firmware Upgrade

TFTP

Access Control Security

- Port security

- 802.1x Port-based access control support

- 802.1x MAC-based access control support

- RADIUS client for 802.1x

- Multi-layer ACL (Access Control List) based on:

VLAN

Protocol type

TCP/UDP port number

802.1p

Diffserv (DSCP)

MAC address

IP address

Console Port

DB-9 RS-232 DCE

Physical & Environmental

Power Input

100 - 240 VAC, 50/60 Hz

Internal universal power supply

Redundant Power Backup Support

Connector to connect to external redundant power supply

Power Consumption

35 watts

Port Trunk

- Number of trunking groups per switch: 6

- Number of Fast Ethernet ports per trunk: 8 (max.)

- Operation mode: load sharing

Ventilation

40 x 40 mm DC fans x 2

DES-3350SR

Technical Specifications

10/100Mbps L3 Switch

Operating Temperature

o o

0 to 40 C

Storage Temperature

o o

-40 to 70 C

Humidity

5% to 95% non-condensing

Dimensions

440 x 309 x 44 mm

19-inch rack-mount width, 1 U height

Weight

4.3 kg

Emission (EMI)

- FCC Class A

- CE Class A

- C-Tick Class A

- VCCI Class A

Safety

CSA International

Ordering Information

10/100Mbps Layer 3 Switch

DES-3350SR

48 10/100Mbps ports, 2 combo

10/100/1000Mbps/SFP (Mini GBIC) slots,

redundant power support

Optional SFP Transceiver

DEM-310GT

SFP transceiver for 1000BASE-LX, single-mode

fiber, max. distance 10km, 3.3V

DEM-311GT

SFP transceiver for 1000BASE-SX, multi-mode fiber,

max. distance 550m, 3.3V

DEM-314GT

SFP transceiver for 1000BASE-LHX, single-mode

fiber, max. distance 40km, 3.3V

DEM-315GT

SFP transceiver for 1000BASE-ZX, single-mode

fiber, max. distance 80km, 3.3V

Optional Redundant Power Supply

DPS-200

Redundant power supply

Specifications subject to change without

prior notice.

D-Link is a registered trademark of D-Link

Corporation/D-Link System Inc. All other

trademarks belong to their proprietors.

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RECYCLABLE

Rev. 03 (Oct. 2003)

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