Welcome to the xStack DXS-3350SR Switch Evaluation
Welcome to your evaluation of the D-Link xStack DXS-3350SR Multilayer Switch. The 48-port high-density 10-Gigabit capable switch is a feature-rich addition to the D-Link xStack switching line. With the xStack Multilayer Switch Series, D-Link meets the switching demands of growing medium and large businesses. The xStack Series is a line of Enterprise-class switching products that provide the industrys highest-density Gigabit connectivity, managed Layer 2 Ethernet switching, full-featured Layer 3 IP routing, robust security, advanced QoS, and blazing 10-Gigabit supportall in one compact 1RU chassis. With strict adherence to industry open standards, xStack switches are designed and priced to help businesses build a cost effective, powerful, and professional network. Review Guide Goals This Reviewers Guide covers an initial introduction to some of the major product features of the D-Link DXS-3350SR Multilayer Switch. If you would like a more detailed technical introduction to the features of the xStack Switch Series, then we suggest you refer to and review the D-Link white paper entitled, D-Link xStack Switch Series: Meeting the Need at the Edge of the Network. If you do not already have a copy of this white paper and would like one, then please contact your D-Link representative and request a copy. This Reviewers Guide is designed with the intent of providing a first-time user and evaluator a brief feature introduction, application discussion, configuration examples, and testing recommendations for the DXS-3350SR Multilayer switch. The Reviewers Guide assumes that the reader has a moderate level of networking technical expertise and has some experience with LAN switching technologies. The Reviewers Guide is not a step-by-step testing plan. The assumption is that the reviewer has a predetermined set of testing goals or plans and therefore the guide discusses features and examples that may be a part of the testing process. All readers should review the initial sections on switch features, switch installation, stacking architectures, and switch performance. Beyond those initial sections, the rest of the Reviewers Guide will focus on major features such as Quality of Service, VLANs, Routing, Network Security, and Network Management. Those sections can be independently referenced if you plan on testing those particular features. Those sections will help the reviewer to accelerate ones knowledge in how the D-Link DXS-3350SR implements those features and provide configuration examples. Note that this Reviewers Guide is supplemental to standard product documentation and quick installation guides already included on CD with the unit. Please refer to the Installation Guide and User Manual and/or the Command Line Interface Reference Manual if you wish to test other features not covered in this Reviewers Guide.

Distribution / Edge

Server Access

1 or 10 GbE 1 GbE

The DXS-3350SR Multilayer Switches can also utilize the 10 GbE uplinks to aggregate high throughput servers directly into the network for high-speed access to mission critical applications and data. The high-density port count and expandability of the stackable DXS-3350SR Multilayer Switch also makes it a true alternative to chassis-based systems for enterprise or SMB core switching applications, as well. The stacking capability of the DXS-3350SR can provide a combined total of 384 10/100/1000 Mb/s ports and GbE ports from a single manageable stack. Core
D-Link DXS-3350SR xStack Switch Reviewers Guide Features List The feature list of the D-Link DXS-3350SR Multilayer Switch is quite extensive, making it a versatile and future-proofed platform for a variety of applications and intelligent service deployments. This Reviewers Guide will not cover the extent of this list, but you may want to review the following feature list to develop or validate your evaluation plans for the DXS-3350SR Multilayer Switch.

IEEE 802.3z compliant IEEE 802.3x Flow Control in full-duplex compliant IEEE 802.3u compliant IEEE 802.3ab compliant IEEE 802.3ae compliant (for optional XFP module) IEEE 802.1p Priority Queues IEEE 802.3ad Link Aggregation Control Protocol support. IEEE 802.1x Port-based and MAC-based Access Control IEEE 802.1Q VLAN IEEE 802.1D Spanning Tree, IEEE 802.1W Rapid Spanning Tree and IEEE 802.1s Multiple Spanning Tree support Stacking support in either Ring or Star topology Access Control List (ACL) support IP Multinetting support Protocol VLAN support Single IP Management support Access Authentication Control utilizing TACACS, XTACACS, TACACS+ and RADIUS protocols Dual Image Firmware Simple Network Time Protocol support MAC Notification support System and Port Utilization support System Log Support High performance switching engine performs forwarding and filtering at full wire speed up to 128Gbps. Full- and half-duplex for all Gigabit ports. Full duplex allows the switch port to simultaneously transmit and receive data. It only works with connections to fullduplex-capable end stations and switches. Connections to a hub must take place at half-duplex. Support broadcast storm filtering Non-blocking store and forward switching scheme capability to support rate adaptation and protocol conversion Supports by-port Egress/Ingress rate control Efficient self-learning and address recognition mechanism enables forwarding rate at wire speed Support port-based enable and disable Address table: Supports up to 8K MAC addresses per device Supports a packet buffer of up to 3 Mbits 9
Supports Port-based VLAN Groups Port Trunking with flexible load distribution and fail-over function IGMP Snooping support IGMP version 3 Layer 3 support including DVMRP, OSPF and RIP SNMP support Secure Sockets Layer (SSL) and Secure Shell (SSH) support System Severity control Port Mirroring support MIB support for: RFC1213 MIB II RFC1493 Bridge RFC1757 RMON RFC1643 Ether-like MIB RFC2233 Interface MIB IF MIB Private MIB RFC2674 for 802.1p IEEE 802.1x MIB RS-232 DCE console port for Switch management Provides parallel LED display for port status such as link/act, speed, etc.

Technical Summary

Technical Specifications
DXS-3350SR Max Units In A Stack MAC Address Table Size Switch Fabric Transmission Method VLANs Integrated Stacking Ports QoS/CoS Classification QoS/ACLs Supported Routing Protocols 48-Port 10/100/1000 Managed Switch with (4) Combo SFP Ports, Integrated 10-Gig Stacking, and Optional 10-Gig Uplinks 8 Units Per Stack (in Ring Topology) 16,000 Up to 176Gbps Capacity Store-and-Forward Supports Up To 4000 Static VLAN Groups/Up To 255 Dynamic (PortBased/802.1p/GARP/GVRP) Two 10-Gig Ports - Each Supporting Up To 20Gbps (Full Duplex) 8 Hardware Queues (802.1p/ToS/DiffServ) - Strict Priority or Weight Round Robin Queue Scheduling MAC Address, IP Address, TCP/UDP Port Number or payload, physical port, DSCP, 802.1p Static Routes, RIPv1/v2, OSPF, PIM-DM, and DVMRP

Interface Options

RJ-45 LC 10BASE-T, 100BASE-TX & 1000BASE-T With optional Standard Small Form-Factor Pluggable (SFP) Gigabit Transceivers With optional 10-Gigabit Module and XFP Dual 10-Gigabit Stacking Ports Redundant Power Option Via Optional DPS-500

Stacking Ports RPSU

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
Network Protocols and Standards
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, 802.3ad Link Aggregation, 802.3x Flow Control, 802.1x Port-based Authentication, and 802.1x MAC-based Authentication, 802.1s (Multiple Spanning Tree), 802.1v (protocol-based VLANs) 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, RFC 1850 OSPF, and DiffServ
Electrical & Emissions Summary
Emissions Power Supply CE Mark & FCC Class A, IECES-003 Class, EN55022 Class A/EN55024 100-120, 200-240VAC, 50/60 Hz Internal Universal Power (Power consumption 147 Watts max)
Safety Agency and Environmental Certifications
Safety Physical and Environmental Temperature Humidity CSA International Operating: 0 - 40 C (32 - 104 F) Storage: -25 - 55 C (-13 - 131 F) Operating: 5% to 95% RH, Non-Condensing Storage: 0% to 95% RH, Non-Condensing

Physical Specifications

Dimensions (W x D x H) Weight 445mm x 430mm x 45mm (17.32x 16.93 x 1.73 in) 19-inch rack-mount width, 1.0U height 6.5kg (14.33lbs)
Warranty and Support Information
Warranty Limited Lifetime Warranty for as long as the original customer/end user owns the product, or five years after product discontinuance, whichever occurs first (excluding power supplies and fans). Free Technical Support

D-Link DXS-3350SR xStack Switch Reviewers Guide show switch Command The show switch command will provide extensive information on the current configuration of many switch parameters. It can be used to show the status of switch configuration.
show config Command The show config command can be used to display the list of configuration commands entered into the switch. The current config option will show the commands currently in use by the system while the config_in_NVRAM option will show those commands saved in non-volatile RAM. DXS-3350SR:4# show config current_config Or DXS-3350SR:4# show config config_in_NVRAM
Configuring the UI Timeout Parameter
The Console-based CLI has a default inactivity timer that logs out the inactive interface for security protection after a certain amount of time between minutes. By default the interface timeout is set to 10 minutes. While this is a very important feature when the switch is in a network operational status, it can be quite an inconvenience in controlled testing and evaluation situations. The inactivity timer on the user interface can be disabled to facilitate immediate access to the user interface without having to log back in every time. The serial port can be easily configured to disable user interface timeouts. config serial_port Command The config serial_port command is used to configure the serial ports baud rate and auto logout settings. To disable automatic logout of the user interface after 10 minutes, enter the following command: DXS-3350SR:4# config serial_port auto_logout never
Configuring the System IP Address
The switch must be assigned an IP address for administrative and management function such as SNMP, BOOTP, TFTP, or HTTP. The DXS-3350SR Multilayer Switch will support either static assignment of an IP address or can acquire one using Dynamic Host Control Protocol. Please reference the appropriate section below to facilitate the system IP address assignment.
Note: To facilitate testing it is recommended that you configure a static IP address. Please note that the default IP address of the switch is factory set to 10.90.90.90.
Config ipif Command The ipif command is used to configure the System IP address on the switch.
D-Link DXS-3350SR xStack Switch Reviewers Guide If you decide to change the IP address of the switch, please note the assigned IP address in the space below:
IP Address: ___________________________ Subnet Mask: _________________________
Enabling the Web Interface
The DXS-3350SR Multilayer Switch can also be managed through a standard web browser interface. The built-in HTTP server in the switch can easily be enabled to allow web-based management by issuing a CLI command. The built-in web server can be set up to use any port number up to 65535. By default the well-known port 80 is used if one is not specified. enable web Command The enable web command is used to enable the built-in web server for web-based management. Issuing the following command can enable it: DXS-3350SR:4# enable web

The aging timer can also be changed at the command line interface as well by executing the config fdb aging_time command. config fdb aging_time Command The config fdb aging_time command will set the expiration timer for learned entries in the forwarding database of the switch. DXS-3350SR:4# config fdb aging_time 1000000
Disabling Port Auto-negotiation
Most of the switch ports on the DXS-3350SR Multilayer Switch can be configured to support Ethernet speeds of 10 Mb/s, 100 Mb/s, or 1000 Mb/s as well as support either half or full duplex operation. By default, the ports are set to an auto-negotiation mode
D-Link DXS-3350SR xStack Switch Reviewers Guide that allows the switch and the attached device to negotiate both the speed and the duplex settings. Depending on the testing tools and the devices being hooked up to the switch for testing, it may be desirable to lock down the configuration instead of allowing an auto-negotiation. Since performance testing will often involve the highest speeds that a port can support in order to show maximum throughput, the ports on the DXS-3350SR Multilayer Switch be locked to the highest performing mode which is 1000 Mb/s full duplex. The settings can be configured through either the web-based management interface or the command line interface. You can follow the instructions below to disable autonegotiation and set a port for 1000 Mb/s full duplex. To change the speed and duplex settings through the web-based management interface, start a browser interface and log in to the main management page. The port parameters can be located by selecting the following path from the hierarchical folder menu structure in the left hand column: DXS-3350SR -> Configuration -> Port Configuration After clicking on Port Configuration, the port configuration table will be displayed in the main window showing the parameter settings for each port. Changes to any ports can be done in the port configuration bar along the top of the main window. In order to change all 48 ports to 1000 Mb/s full duplex, select the starting port number of 1 and the ending port number of 48. Select 1000M/Full_M from the Speed/Duplex pull down menu. Clicking on the Apply button will then change the speed and duplex on all the ports specified in the port configuration bar.
The speed and duplex settings can also be changed at the command line interface as well by executing the config ports command. config ports Command The config ports command can be used to set the port state, speed, duplex, and flow control parameters for any switch port. The following command can be executed at the command line to configure ports 1-48 for 1000 Mb/s full duplex. DXS-3350SR:4# config ports 1:1-1:48 speed 1000_full master
D-Link DXS-3350SR xStack Switch Reviewers Guide show ports Command The show ports command can be used to display the current port settings for port state, speed, duplex, flow control, link status, and address learning status. To show the current port configurations for the switch, use the following command at the command line interface. DXS-3350SR:4# show ports

D-Link DXS-3350SR xStack Switch Reviewers Guide The status of jumbo frames can also be verified and modified at the command line interface by executing the enable jumbo_frame command and the show jumbo_frame command. enable jumbo_frame Command The enable jumbo_frame command can be used at the command line interface to enable support for jumbo frames up to 9000 bytes. DXS-3350SR:4# enable jumbo_frame
show jumbo_frame Command The show jumbo_frame command can be used at the command line interface to show the current status of jumbo frame support. DXS-3350SR:4# enable jumbo_frame Performance Testing Scenarios Performance testing on the D-Link DXS-3350SR Multilayer Switch can range considerably based on testing plans, available test tools, and application considerations. You, the evaluator, will define those test cases based on your testing goals. We would like, however, for a couple of testing scenarios to be considered as input to your testing plan. The considerations presented below are based on typical configurations and scenarios for which the DXS-3350SR Multilayer Switch would be deployed.
1 Gbps and 10 Gbps Port-to-Port Aggregate Forwarding
As a high-density Gigabit switching platform, the DXS-3350SR Multilayer Switch must have the aggregate port-to-port performance capacity within the switch fabric to handle the maximum forwarded traffic that can be offered up by gigabit and 10 Gigabit devices. This type of testing of aggregate forwarding is the best way to determine the packet per second performance rate of the switch fabric. A typical testing scenario as shown below would be to generate 24 bi-directional Gigabit streams and one bi-directional 10 Gigabit stream simultaneously through the switch. DXS-3350SR xStack Switch Reviewers Guide
= Bidirectional 1Gb/s Traffic Streams
= Bidirectional 10Gb/s Traffic Stream
The DXS-3350SR Multilayer Switch is capable of forwarding frames at the maximum rates that the attached networks can offer. At a maximum load of 24 bi-directional streams across the 48 gigabit ports and a single 10 Gigabit stream across the two 10 Gigabit ports, the aggregate zero loss forwarding rate of the DXS-3350SR Multilayer Switch is in excess of 101 million packets per second.
10 x 1 Gbps Port to 10 Gbps Port Forwarding
With the dual 10 Gigabit uplinks and the high-density gigabit Ethernet, the DXS-3350SR is well positioned to function as an edge/distribution switch for receiving and feeding traffic into the core of the network. When deployed in this type of edge switching application, one of the key performance needs of the switch is to effectively forward traffic very quickly to and from the 10 Gigabit interfaces connected to the network backbone. This performance characteristic is also critical for configurations where high performance servers are attached to the switch via a 10 Gigabit interface. The 10 Gigabit interfaces must not create a traffic bottleneck and therefore must perform at a full 10 gigabits in both directions for a total of 20 Gb/s of throughput. With the two 10 Gigabit ports available on the DXS-3350SR Multilayer Switch, the combined full duplex throughput to the network backbone or to your servers is 40 Gb/s. The DXS-3350SR Multilayer Switch is capable of providing zero packet loss performance to and from its 10 Gigabit interfaces. A typical testing configuration for this scenario is shown below. The traffic streams from 10 separate gigabit ports would be aggregated to and from each of the 10 Gigabit ports

10 Gbps Port to 10 Gbps Port Forwarding
The final performance scenario for consideration is to measure 10 Gigabit port to 10 Gigabit port performance. A typical scenario here could be when one of the 10 Gigabit ports is connected to the network backbone and the other is connected to a highperformance server or another backbone switch for redundancy. The DXS-3350SR Multilayer Switch can provide a full zero packet loss 10 Gigabit bidirectional stream between the two uplink interfaces.
Quality of Service / Class of Service
The quality of service features of the D-Link DXS-3350SR Multilayer Switch make it an excellent candidate for network convergence of voice, video, and data on the same network. The DXS-3350SR Multilayer Switch offers reliable connectivity for mission critical applications that have specific demands for bandwidth availability, latency, and jitter. The DXS-3350SR Multilayer Switch supports IEEE 802.1p priority queuing Quality of Service with an implementation that offers eight separate hardware queues for every physical port. The network administrator can configure seven of those queues while the highest priority queue is reserved internally by the switch for various management protocols and other uses. These seven configurable priority queues can be used to classify traffic based on application needs. The switch port queues are numbered from 0 to 7 with the lowest priority being Queue 0 and the highest priority being Queue 7. Note
D-Link DXS-3350SR xStack Switch Reviewers Guide that Queue 7 is an internal queue and not used for forwarding network traffic. Thus, Queue 6 is the highest priority queue for scheduling network traffic for forwarding. IEEE 802.1p Traffic Classification When proper IEEE 802.1Q tagged packets arrive on a switch port, the User Priority field of the tag can be read and mapped from one of the eight 802.1p priority levels to one of the seven class queues. The default mapping, which can be altered by the administrator, of IEEE 802.1p priorities to the class of service port queues in the D-Link DXS-3350SR Multilayer Switch is as follows: IEEE 802.1p Priority Tag Priority 0 Priority 1 Priority 2 Priority 3 Priority 4 Priority 5 Priority 6 Priority 7 DXS-3350SR Class of Service Queue* Queue 2 Queue 0 Queue 1 Queue 3 Queue 4 Queue 5 Queue 6 Queue 6

Description

Best Effort Ordinary LAN Traffic Background Bulk Transfers Undefined Excellent Effort Best Effort for important users Controlled Load Important Applications Video Less than 100 millisecond delay Voice Less than 10 millisecond delay Network Control Management * Switch Port Queue 7 is reserved for internal use

show 802.1p default_priority Command The show 802.1p default_priority command can be used at the command line interface to show the current default port priority status for all ports. DXS-3350SR:4# show 802.1p default_priority Scheduling of Queued Traffic The scheduling of queued traffic for transmission in the DXS-3350SR Multilayer Switch can occur using either a strict priority scheme or a weighted round robin scheme. In a strict priority-scheduling scheme, all higher priority queues must be completely emptied before a specific queue can be serviced. For instance, if Queue 6 continues to fill with voice packets, then those packets will continue to be forwarded while packets in all other queues (0-5) will wait until Queue 6 is emptied. Strict priority schemes could result in the starving of some queues in the continued presence of other higher priority traffic. To address this situation, the DXS-3350SR Multilayer Switch also supports weight round robin queue servicing. The class of service queues can be weighted by assigning each queue a maximum number of packets that can be serviced before the next queue must be serviced. The configuration of the queuing scheme for the class of service queues can be configured with the web interface or the command line interface. In order to modify the DXS-3350SR xStack Switch Reviewers Guide
D-Link DXS-3350SR xStack Switch Reviewers Guide queuing scheme through the web-based management interface, start a browser interface and log in to the main management page. The map can be located by selecting the following path from the hierarchical folder menu structure in the left hand column: DXS-3350SR -> Configuration -> QoS -> QoS Scheduling Mechanism After making your selection using the pull-down menu, click on the Apply button to modify the scheduling mechanism to use on all queues in the DXS-3350SR Multilayer Switch.
Setting the scheduling mechanism can also be done through the command line interface by using the config scheduling_mechanism command config scheduling_mechanism Command The config scheduling_mechanism command can be used at the command line interface to change the default scheduling mechanism for servicing the class of service queues in the DXS-3350SR Multilayer Switch. To change the scheduling mechanism use the following command:

Click on Apply to create the new VLAN called TestLab. You will get a dialog box indicating success. To return to the VLAN list, click on the Select All Static VLAN Entries line at the bottom of the page. The list of VLANs will now show the new VLAN you just created.
Configuration Example CLI Interface
We can configure ports 1-5 to be in a second VLAN using the command line interface as well. Like in the previous web-based example, untagged ports 1-5 must first be removed from the default VLAN before we can associate them to another VLAN. To delete them from the default VLAN use the config vlan command. config vlan delete Command The config vlan delete command can be used to delete ports from an existing VLAN. To delete the ports use the following command DXS-3350SR:4# config vlan default delete 1:1-1:5 The command will delete ports 1-5 from the default VLAN so that we can put them into another newly created VLAN. The second command shows that ports 1-5 have been removed from the default VLAN.
show vlan Command The show vlan command can be used at the command line interface to show the current configuration for any VLANs. It will show the all VLANs along with their associated VLAN ID, VLAN Name, member ports, and status of untagged ports in the VLAN. DXS-3350SR:4# show vlan After ports 1-5 have been deleted from the default VLAN, we can now create and then configure a new VLAN. In order to create a new VLAN with VLAN ID 2 and VLAN Name TestLab, you can use the create vlan command at the command line interface: create vlan Command The create vlan command can be used to create a new VLAN before it can be further configured. To create the new VLAN use the following command DXS-3350SR:4# create vlan TestLab tag 2 type 1q_vlan
D-Link DXS-3350SR xStack Switch Reviewers Guide The command will create a port-based VLAN called TestLab with a VLAN ID of 2. Only after the VLAN has been created can it be configured. The next step in our example is to add ports 1-5 to the TestLab VLAN. Ports can be added to an existing VLAN by using the config vlan add command. config vlan add Command The config vlan add command can be used at the command line interface to add ports to an existing VLAN. DXS-3350SR:4# config vlan TestLab add untagged 1:1-1:5 The above command will add ports 1-5 to the VLAN named TestLab and configured the ports for no tagging. We can use the show vlan command again to verify that ports 1-5 now belong to VLAN 2.
802.1Q Protocol-Based VLANs The D-Link DXS-3350SR Multilayer Switch also supports protocol-based VLANs when using tagged packets. This capability may be useful if you wish to route some protocols while continuing to bridge other protocols. With protocol-based VLANs, your broadcast domain can differ by protocol. The DXS-3350SR Multilayer Switch can support 15 preset protocol-based VLAN types and 1 user defined protocol VLAN type for a total of 16 protocol types. The 16 protocols are: 1) 2) 3) 4) IP IPX 802.3 Encapsulation IPX 802.2 Encapsulation IPX SNAP Encapsulation 58

D-Link DXS-3350SR xStack Switch Reviewers Guide 5) IPX Ethernet V2 Encapsulation 6) AppleTalk 7) DEC LAT 8) DECnet 9) SNA 802.2 Encapsulation 10) SNA Ethernet V2 Encapsulation 11) NetBios 12) XNS 13) Banyan Vines 14) IP V6 15) User Defined 16) RARP An administrator may define any protocol by specifying its 802.1Q Ethernet Type and accompanying encapsulation type. Protocol-based VLANs are configured using the same commands and input screens as port-based VLANs. Previously, we used the parameter value port for the Protocol ID. To create a protocol-based VLAN, use the drop down menu to select the protocol:
D-Link DXS-3350SR xStack Switch Reviewers Guide Protocol-based VLANs can also be created at the command line interface using the same commands as we used before with port-based VLANs with some slight parameter changes. In order to create an IPX protocol VLAN called ipxVLAN with VLAN ID 3 using Ethernet V2 encapsulation across ports 6-10, the following commands can be issued: create vlan Command The create vlan command can be used to create a new VLAN before it can be further configured. To create the new VLAN use the following command DXS-3350SR:4# create vlan ipxVLAN tag 3 type protocol-ipxEthernet2 config vlan add Command The config vlan add command can be used at the command line interface to add ports to an existing VLAN. DXS-3350SR:4# config vlan ipxVLAN add tagged 1:6-1:10 show vlan Command The show vlan command can be used at the command line interface to show the current configuration for any VLAN. It will show all VLANs along with their associated VLAN ID, VLAN Type,VLAN Name, member ports, and status of untagged ports in the VLAN. DXS-3350SR:4# show vlan Note that VLAN ipxLAN with VLAN ID 3 below is a protocol-based VLAN across ports 6-10 using 802.1Q tagging.

Routing

The D-Link DXS-3350SR Multilayer Switch also comes equipped with extensive and robust layer 3 IP Routing functionality. The switch includes support for static routes, RIP v1/v2 routing, and OSPF routing along with implementations of the multicast routing protocols DVMRP and PIM-DM. Layer 3 IP routing performed at the switch level can offload the routing burden handled by a network router, thus enabling the network to run more efficiently. The DXS-3350SR Multilayer Switch performs wire-speed packet routing by implementing on-board ASICs for extremely fast hardware-based packet filtering and forwarding. Enabling Layer 3 Switching Turning on layer 3 functionality in the DXS-3350SR Multilayer Switch is easy. Multiple routing protocols can be enabled or disabled on a single consolidated screen when using the web-based interface. In order to enable layer 3 routing functionality through the web-based management interface, start a browser interface and log in to the main management page. The map
D-Link DXS-3350SR xStack Switch Reviewers Guide can be located by selecting the following path from the hierarchical folder menu structure in the left hand column: DXS-3350SR -> Configuration -> Layer 3 IP Networking -> L3 Global Advanced Settings

Any of the IP routing protocols can be enable or disabled from this screen. After making selections from the pull down windows, click on the Apply button to enable the protocols. Enabling IP routing protocols can also be done through the command line interface using the enable command. The example below enables RIP. OSPF, DVMRP, or PIM-DM can be enabled in the same fashion. (ie. enable ospf) enable rip Command The enable rip command can be used at the command line interface to globally enable Routing Information Protocol (RIP) in the switch. To enable RIP use the following command: DXS-3350SR:4# enable rip DXS-3350SR xStack Switch Reviewers Guide
show rip Command The show rip command can be used at the command line interface to show the current global status for RIP in the switch. DXS-3350SR:4# show rip IP Interface Configuration An IP interface for routing can be set up for any defined VLAN in order to route IP traffic into and out of that particular VLAN. Thus, VLANs must exist and be defined in the DXS-3350SR Multilayer Switch before an IP interface can be configured for it. After a VLAN ID and Name have been established, an IP Interface can easily be configured either through the web-based interface or through the command line interface. In order to view or create an IP interface for routing to/from a VLAN via the web-based management interface, start a browser interface and log in to the main management page. The map can be located by selecting the following path from the hierarchical folder menu structure in the left hand column: DXS-3350SR -> Configuration -> Layer 3 IP Networking -> IP Interfaces Settings
The list of existing IP interfaces will be displayed. Those interfaces may be modified by clicking on the Interface Name or deleted by clicking on the delete box. In order to create a new IP Interface, click the Add button in the top left.
From the screen that comes up, the parameters of the IP Interface can be configured and associated with a VLAN. After completing the parameters, click the Apply button to create the new IP Interface. An information box will pop up indicating successful creation. After acknowledging the information box, you can create another IP interface or click the Show All IP Interface Entries line at the bottom to return to the complete list of the switchs IP Interfaces.

show radius Command The show radius command can be used at the command line interface to display the current RADIUS server configurations specified in the DXS-3350SR Multilayer Switch. DXS-3350SR:4# show radius
Configuring for a Local User Database
If 802.1x authentication is enabled on the DXS-3350SR Multilayer Switch to use a local user database, then user authentication information must be maintained in the switch. Usernames and passwords must be entered into the switch for use in the authentication process. In order to configure authorized network users in the switch through the web-based management interface, start a browser interface and log in to the main management page. The map can be located by selecting the following path from the hierarchical folder menu structure in the left hand column: DXS-3350SR -> Configuration -> Port Access Entity -> 802.1X User
Configure authorized network users by entering their usernames (no spaces) and passwords. After completing your entries, click on the Apply button to invoke the changes. The new 802.1x user will then be added to the user authentication database. Adding an 802.1x user can also be done easily through the command line interface as well by using the create 802.1x user command. create 802.1x user Command The create 802.1x user command can be used at the command line interface to configure authorized network users for the switch. To add authorized 802.1x network users to the switchs local database use the following command: DXS-3350SR:4# create 802.1x user JDoe Typing the command above will create a local user database entry for user JDoe" with the password you specify at the prompt that follows.
show 802.1x user Command The show 802.1x user command can be used at the command line interface to display the current authorized 802.1x user local database in the DXS-3350SR Multilayer Switch. DXS-3350SR:4# show 802.1x user Access Control Lists (ACLs) Access control lists (ACLs) are powerful security tools and the use of ACLs in networks is likely to increase as a way to combat security threats. However, the value of ACLs is diminished if, by applying them, traffic slows down, creating a congestion point. The D-Link DXS-3350SR Multilayer Switch delivers wire speed ACLs on every port for maximum security while maintaining maximum throughput. With the DXS-3350SR Multilayer Switch an IT manager can turn on ACLs whenever they are needed without worrying about disrupting business applications or reducing productivity. Configuring ACLs in the DXS-3350SR Multilayer Switch is a two-step process where the first step is to define the fields of a packet that will be used for examination and comparison. In the DXS-3350SR Multilayer Switch these are referred to as Profiles. The second step is to define what action is to be taken by the switch based on the results of examination and comparison. These are referred to as Rules. Note that multiple Rules can be configured under a Profile. The maximum number of rules allowed in the DXS3350SR Multilayer Switch is 4000.

D-Link DXS-3350SR xStack Switch Reviewers Guide Typing the command above will create a new Access Rule with ID 1 associated with Access Profile 4 to deny traffic on port 30 if the source MAC address is 03-8e-2b-82-f110.
show access_profile Command The show access_profile command can be used at the command line interface to display the current configured access profiles in the DXS-3350SR Multilayer Switch. DXS-3350SR:4# show access_profile
The DXS-3350SR Multilayer Switch has a wide array of network management options available for network administrators. Some of the these options include the console CLI, telnet, the web-based interface, SNMP v1/v2/v3, RMON monitoring, TFTP firmware upgrades, dual image support, Port Mirroring, RADIUS, TACACS+, SSH2 server, SSL, and SYSlog. DXS-3350SR xStack Switch Reviewers Guide
D-Link DXS-3350SR xStack Switch Reviewers Guide Web Interface The DXS-3350SR Multilayer Switch can be fully managed, configured, and monitored via the embedded web-based HTML interface. A remote station can access the switch for management from anywhere on the network using a standard browser. Besides switch configuration, which this guide has already exposed you to, the web-based interface can also be used for extensive monitoring of switch operations and provide access to administrator utilities. Traffic analysis can be done with java-based graphing utilities to monitor performance parameters
such as port utilization rates, sent and received traffic, broadcast traffic, packet size analysis, and error statistics. In addition, switch resources such as CPU utilization, Stacking information, and Module information can be monitored or retrieved through the web-based interface.
Internal databases of the switch may also be monitored using the web-based interface. Activities such as viewing the routing tables or bridge tables can easily be accomplished by pointing and clicking.
Finally, administrator utilities such as image uploads and downloads, switch resets and reboots, and ping operations can also be invoked from the web-based user interface.
Single IP Management (SIM) The DXS-3350SR Multilayer Switch also supports D-Links Single IP Management (SIM) Clustering technology. By utilizing SIM Clustering, SIM capable switches can be stacked logically and centrally managed through a single IP address. SIM virtual stacking does not require that the managed switches be physically stacked providing flexibility of managing distributed switches with a single interface. SIM Clustering requires that all virtually stacked switches reside in the same broadcast domain and thus will not work across a router. A SIM Cluster group can accept up to 32 switches. A SIM Cluster has a master switch referred to as the Commander Switch (CS). When a switch is configured as a Commander Switch, it can be used for topology mapping as well as pushing out firmware or configuration files to other clustered switches.

BUSINESS AND Business and Enterprise Solutions ENTERPRISE SOLUTIONS

DXS-3350SR

Multilayer Switch
48-Port 10/100/1000 Managed Stackable Switch with (4) Combo SFP Ports, Integrated 10-Gig Stacking, and Optional 10-Gig Uplinks
D-Links xStack Switches are a series of Next Generation high performance stackable switches that deliver high scalability, wire-speed Gigabit performance, high availability, integrated 10-Gigabit stacking, redundant power options, and the option to stack in a ring or star topology. The xStack DXS-3350SR stacks up to 8 units in a stack, providing up to 384 Gigabit ports, and up to 40Gbps of stacking bandwidth. It can stack with the other xStack switches like the DGS-3324SR, DGS-3324SRi, and DXS-3326GSR, providing unprecedented exibility. It provides 48 built-in copper Gigabit ports, including (4) Combo SFP ports supporting either copper links or SFP adapters for easy, exible connection to ber-based Gigabit media and a switching capacity of up to 176Gbps per switch. High Availability In a ring stacking topology, the DXS-3350SR supports Shortest-Path switching which improves resiliency, uptime and network efciency. It also supports an optional Redundant Power Supply (DPS-500). It includes support for 802.3ad Link Aggregation, 802.1d Spanning Tree, and 802.1w Rapid Spanning Tree for increased network reliability and availability. Network Management The DXS-3350SR features a variety of network management options: console CLI, telnet, web, SNMPv1/v2/v3, RMON, TFTP, Port Mirroring, BootP, and DHCP. It also supports a variety of advanced trafc management options including: Bandwidth Control, Broadcast Storm Control, and support for IGMP Snooping v1/v2/v3. D-link exclusive SIM technology is also supported. This feature allows up to 32 units of D-link switches to be managed under a single IP, regardless of physical environment. Advanced Enterprise Features The DXS-3350SR provides a robust and consistent set of QoS/CoS, VLAN, and Security features. It supports 8 priority queues for 802.1p/ToS/DiffServ, with classication and marking based on MAC SA/DA, IP SA/DA, and/or TCP/UDP. Layer 3 dynamic routing protocols include: RIPv1/v2, OSPFv2, PIM-DM, and DVMRP. Security features include: 802.1x (Port/MAC-based Authentication), port security, and Access Control Lists (ACL) based on MAC address, IP address, and/or TCP/UDP port numbers. It also provides extensive support for GARP/GVRP, 802.1q, and port-based VLANs for up to 4000 static groups per device. The DXS-3350SR is the latest example of D-Links continued commitment to our channel partners and customers to be the industry leader in cost-effective, reliable, high performance, feature-rich switches.
High Performance Switching:
- Integrated Dual 10-Gig Stacking Ports - Recoverable Ring or Star Stacking Architecture - Stack Up to 8 Units Per Stack - Optional Redundant Power Support - Optional 10G uplink support - 802.3ad (Link Aggregation) - 802.1w (Rapid Spanning Tree) - RIPv1/v2, OSPF & DVMRP - 802.1s, 802.1v - IP Multinetting

Network Management:

Console Telnet SNMPv1/v2/v3 RMON (4 Groups) Web GUI Port Mirroring Syslog Single IP Address Management SSH, TACACS+, SSL ACL L2/L3/L4
Advanced Standards Based Enterprise Features:
802.1p Priority (8 Queues) DiffServ QoS 802.1x (Port Based Authentication) 802.1x (MAC Based Authentication) 802.1Q VLANs (Up to 4000 Groups) IGMP Snooping VRRP redundancy Radius Client

Product Data Sheet

Technical Specications
DXS-3350SR Max Units In A Stack MAC Address Table Size Switch Fabric Transmission Method VLANs Integrated Stacking Ports QoS/CoS Classication QoS/ACLs Supported Routing Protocols
48-Port 10/100/1000 Managed Switch with (4) Combo SFP Ports, Integrated 10-Gig Stacking, and Optional 10-Gig Uplinks 8 Units Per Stack (in Ring Topology) 16,000 Up to 176Gbps Capacity Store-and-Forward Supports Up To 4000 Static VLAN Groups/Up To 255 Dynamic (Port Based/802.1p/GARP/GVRP) Two 10-Gig Ports - Each Supporting Up To 20Gbps (Full Duplex) 8 Hardware Queues (802.1p/ToS/DiffServ) - Strict Priority or Weight Round Robin Queue Scheduling MAC Address, IP Address, TCP/UDP Port Number or payload, physical port, DSCP, 802.1p Static Routes, RIPv1/v2, OSPF, PIM-DM, and DVMRP

Interface Options

RJ-45 LC Stacking Ports RPSU 10BASE-T, 100BASE-TX & 1000BASE-T With optional Standard Small Form-Factor Pluggable (SFP) Gigabit Transceivers With optional 10Gigabit Module and XFP Dual 10-Gigabit Stacking Ports Redundant Power Option Via Optional DPS-500

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 Relay Agent, and DNS Client
Network Protocols and Standards
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, 802.3ad Link Aggregation, 802.3x Flow Control, 802.1x Port-based Authentication, and 802.1x MAC-based Authentication, 802.1s (Multiple Spanning Tree), 802.1v (protocol-based VLANs), classication based on IPV6 VLANs RFC 1157 SNMP, RFC 1112/2236 IGMPv1/2/3, RFC 1757 RMON (4 Groups), RFC 1493 Bridge MIB, RFC 1213 MIB II, RFC 793 TCP, RFC 826 ARP, RFC 854 Telnet, RFC 1850 OSPF, and DiffServ CE Mark & FCC Class A, IECES-003 Class, EN55022 Class A/EN55024 100-120, 200-240VAC, 50/60 Hz Internal Universal Power (Power consumption 140 Watts max)
Electrical & Emissions Summary

Emissions Power Supply

Safety Agency Certications and Environmental
Safety Temperature Humidity CSA International Operating: 0 - 40 C (32 - 104 F) Storage: -25 - 55 C (-13 - 131 F) Operating: 5% to 95% RH, Non-Condensing Storage: 0% to 95% RH, Non-Condensing

Physical Specications

Dimensions (W x D x H) Weight 445mm x 430mm x 45mm (17.32x 16.93 x 1.73 in) 19-inch rack-mount width, 1.0U height 6.5kg (14.33lbs)
Warranty and Support Information
Warranty Support Limited Lifetime Warranty Free Technical Support Description 48-Port 10/100/1000 Managed Switch with (4) Combo SFP Ports, Integrated 10-Gig Stacking, and Optional 10-Gig Uplinks Mini-GBIC/SFP 1000BASE-LX (up to 10Km) Mini-GBIC/SFP 1000BASE-SX (up to 550m) 1000BASE-SX+ SFP/mini-GBIC Up to 2km (Multimode) Mini-GBIC/SFP 1000BASE-LH (up to 50Km) Mini-GBIC/SFP 1000BASE-ZX (up to 80Km) 2-Port 10Gigabit XFP uplink module (XFP transceivers sold separately) 10GBASE-SR Multi-Mode XFP up to 300m 10GBASE-LR Single-Mode XFP up to 10km Redundant Power Supply Redundant Power Supply Rack to carry up to 2 DPS-500 Spare 50cm 10-Gig Stacking Cable 100cm 10-Gig Stacking Cable (May be Required When Stacking More Than 5 Units In A Stack)

Ordering Information

Part Number DXS-3350SR DEM-310GT DEM-311GT DEM-312GT2 DEM-314GT DEM-315GT DEM-420X DEM-421XT DEM-422XT DPS-500 DPS-800 DEM-CB50 DEM-CB100
D-Link Systems, Inc. 17595 Mt. Herrmann Street Fountain Valley CA 92708 www.dlink.com 2005 D-Link Corporation/D-Link Systems, Inc. All rights reserved. D-Link, the D-Link logo, and X Stack are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the United States and other countries. Other trademarks are the property of their respective owners. Visit www.dlink.com for more details.