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TigerStack 10/100
48-Port 10/100Mbps
Stackable Managed Switch
◆ 48 auto-MDI/MDI-X 10BASE-T/100BASE-TX ports
◆ 2 Gigabit RJ-45 ports shared with 2 SFP transceiver slots
◆ 2 Gigabit stacking ports that act as Ethernet ports in
standalone mode
◆ Stacks up to 4 units
◆ 17.6 Gbps of aggregate bandwidth
◆ Non-blocking switching architecture
◆ Spanning Tree Protocol and Rapid STP
◆ Up to four LACP or static 8-port trunks
◆ RADIUS and TACACS+ authentication
◆ Rate limiting for bandwidth management
◆ CoS support for four-level priority
◆ Full support for VLANs with GVRP
◆ IP Multicasting with IGMP Snooping
◆ Manageable via console, Web, SNMP/RMON
Installation Guide
SMC6248M
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Table of Contents
Troubleshooting
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Summary of Contents for SMC Networks SMC6248M
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Page 1: Installation Guide
◆ Up to four LACP or static 8-port trunks ◆ RADIUS and TACACS+ authentication ◆ Rate limiting for bandwidth management ◆ CoS support for four-level priority ◆ Full support for VLANs with GVRP ◆ IP Multicasting with IGMP Snooping ◆ Manageable via console, Web, SNMP/RMON Installation Guide SMC6248M... - Page 3 TigerStack 10/100 Installation Guide From SMC’s Tiger line of feature-rich workgroup LAN solutions 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 February 2005 Pub. # 150000017100H...
- Page 4 Irvine, CA 92618 All rights reserved. Printed in Taiwan Trademarks: SMC is a registered trademark; and EZ Switch, TigerStack and TigerSwitch are trademarks of SMC Networks, Inc. Other product and company names are trademarks or registered trademarks of their respective holders.
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Page 5: Limited Warranty
All SMC products carry a standard 90-day limited warranty from the date of purchase from SMC or its Authorized Reseller. SMC may, at its own discretion, repair or replace any product not operating as warranted with a similar or functionally equivalent product, during the applicable warranty term. - Page 6 RIGHTS, WHICH MAY VARY FROM STATE TO STATE. NOTHING IN THIS WARRANTY SHALL BE TAKEN TO AFFECT YOUR STATUTORY RIGHTS. * SMC will provide warranty service for one year following discontinuance from the active SMC price list. Under the limited lifetime warranty, internal and external power supplies, fans, and cables are covered by a standard one-year warranty from date of purchase.
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Page 7: Japan Vcci Class A
Wear an anti-static wrist strap or take other suitable measures to prevent elec- trostatic discharge when handling this equipment. 2. When connecting this switch to a power outlet, connect the field ground lead on the tri-pole power plug to a valid earth ground line to prevent electrical hazards. -
Page 8: Ce Mark Declaration Of Conformance For Emi And Safety
OMPLIANCES CE Mark Declaration of Conformance for EMI and Safety (EEC) SMC contact for these products in Europe is: SMC Networks Europe, Edificio Conata II, Calle Fructuós Gelabert 6-8, 2 08970 - Sant Joan Despí, Barcelona, Spain. This information technology equipment complies with the requirements of the Council... -
Page 9: Safety Compliance
Faserkabelenden schauen, während diese eingeschaltet sind. Power Cord Safety Please read the following safety information carefully before installing the switch: WARNING: Installation and removal of the unit must be carried out by qualified personnel only. • The unit must be connected to an earthed (grounded) outlet to comply with international safety standards. -
Page 10: Veuillez Lire À Fond L'information De La Sécurité Suivante Avant D'installer Le Switch
U.K. Europe Veuillez lire à fond l'information de la sécurité suivante avant d'installer le Switch: AVERTISSEMENT: L’installation et la dépose de ce groupe doivent être confiés à un personnel qualifié. • Ne branchez pas votre appareil sur une prise secteur (alimentation électrique) lorsqu'il n'y a pas de connexion de mise à... -
Page 11: Bitte Unbedingt Vor Dem Einbauen Des Switches Die Folgenden Sicherheitsanweisungen Durchlesen
France et Pérou uniquement: Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos alimentations sont du type impédance à la terre, ce groupe doit être alimenté par une tension de 230 V (2 P+T) par le biais d’un transformateur d’isolement à... -
Page 12: Warnings And Cautionary Messages
Warning: This switch uses lasers to transmit signals over fiber optic cable. The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. However, you should never look directly at a transmit port when it is powered on. -
Page 13: End Of Product Life Span
The following publication gives specific information on how to operate and use the management functions of the switch: The SMC6248M Management Guide Also, as part of the switch’s firmware, there is an online web-based help that describes all management related features. - Page 14 OMPLIANCES...
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Page 15: Table Of Contents
Overview ..........1-1 Switch Architecture ........1-2 Network Management Options . - Page 16 ABLE OF ONTENTS Installing an Optional SFP Transceiver ......3-8 Connecting Switches in a Stack ....... . 3-9 Stacking Topologies .
- Page 17 Troubleshooting ......A-1 Diagnosing Switch Indicators ....... . . A-1 Diagnosing Power Problems with the LEDs .
- Page 18 ABLES Table 1-1 Port Status LEDs ....... . . 1-5 Table 1-2 System Status LEDs .
- Page 19 Attaching the Brackets ......3-5 Figure 3-3 Installing the Switch in a Rack ..... 3-5 Figure 3-4 Attaching the Adhesive Feet .
- Page 20 IGURES...
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Page 21: About The Tigerstack 10/100
10/100 IGER TACK Overview SMC’s TigerStack SMC6248M is a stackable Fast Ethernet switch with 48 10BASE-T/100BASE-TX ports and two 1000BASE-T ports that operate in combination with two Small Form Factor Pluggable (SFP) transceiver slots (see Figure 1-1, Ports 49-50). The switch also provides two 1 Gbps built-in stacking ports for connecting up to four units in a stack. -
Page 22: Switch Architecture
Console Console Port Switch Architecture The SMC6248M switch employs a wire-speed, non-blocking switching fabric. This permits simultaneous wire-speed transport of multiple packets at low latency on all ports. The switch also features full-duplex capability on all ports, which effectively doubles the bandwidth of each connection. -
Page 23: Network Management Options
Network Management Options The SMC6248M switch contains a comprehensive array of LEDs for “at-a-glance” monitoring of network and port status. It also includes a management agent that allows you to configure or monitor the switch using its embedded management software, or via SNMP applications. To manage... -
Page 24: 1000Base-T/Sfp Ports
IGER TACK 1000BASE-T/SFP Ports The SMC6248M contains two combination Gigabit RJ-45 ports that are shared with Small Form Factor Pluggable (SFP) transceiver slots (Ports 49-50, Figure 1-1 on page 1-2). If an SFP transceiver (purchased separately) is installed in a slot, the associated RJ-45 port is disabled. The switch can be configured to force the use of an RJ-45 port or SFP slot, as required. -
Page 25: Port And System Status Leds
Port and System Status LEDs The SMC6248M includes a display panel for key system and port indications that simplify installation and network troubleshooting. The LEDs, which are located on the front panel for easy viewing, are shown below and described in the following tables. -
Page 26: Figure 1-4 System Leds
BOUT THE IGER TACK Condition Gigabit Ethernet Ports (Ports 49-50, and Ports 51-52 when stacking is not implemented) (Link/ On/Flashing Activity) Amber On/Flashing Green 10/100 Table 1-1 Port Status LEDs Status Port has established a valid 10/100 Mbps network connection. Flashing indicates activity. Port has established a valid 1000 Mbps network connection. -
Page 27: Table 1-2 System Status Leds
This switch is acting as a Slave unit in the stack. When the user enters the light unit command in the CLI, the unit ID of each switch in the stack will be displayed by the port LEDs 1 to System in standalone mode. -
Page 28: Power Supply Receptacles
IGER TACK Power Supply Receptacles There are two power receptacles on the rear panel of the switch. The standard power receptacle is for the AC power cord. The receptacle labeled “RPU” is for the optional Redundant Power Unit 12V 4.5A... -
Page 29: Expandability
Provides stacking capability via RJ-45 ports with 4 Gbps stacking bandwidth. Up to 4 units can be stacked together. • The SMC6248M can also be stacked together with the SMC6224M 24-port switch. When combining these switches in the same stack, up to 4 units can be stacked together . -
Page 30: Management
BOUT THE IGER TACK Management • “At-a-glance” LEDs for easy troubleshooting • Network management agent: Manages switch in-band or out-of-band Supports console, Telnet, SSH, SNMP, RMON 4 groups and web-based interface • Slave units provide backup stack management. 1-10 10/100... -
Page 31: Network Planning
When networks are based on repeater (hub) technology, the distance between end stations is limited by a maximum hop count. However, a switch turns the hop count back to zero. So subdividing the network into smaller and more manageable segments, and linking them to the larger network by means of a switch, removes this limitation. -
Page 32: Application Examples
ETWORK LANNING Application Examples The SMC6248M is not only designed to segment your network, but also to provide a wide range of options in setting up network connections. Some typical applications are described below. Collapsed Backbone The SMC6248M is an excellent choice for mixed Ethernet, Fast Ethernet, and Gigabit Ethernet installations where significant growth is expected in the near future. -
Page 33: Network Aggregation Plan
When up to four switch units are stacked together, they form a single “virtual” switch containing up to 200 ports. The whole stack can be managed through the Master unit using a single IP address. -
Page 34: Remote Connections With Fiber Cable
1000BASE-ZX SFP transceiver can be used to reach another site up to 100 kilometers away. The figure below illustrates three TigerStacks interconnecting multiple segments with fiber cable. 1000BASE-SX MMF (500 meters) Server Farm Remote Switch Slave Stack Master Uplink Uplink 51/Down 52/Up Diag... -
Page 35: Making Vlan Connections
Making VLAN Connections This switch supports VLANs which can be used to organize any group of network nodes into separate broadcast domains. VLANs confine broadcast traffic to the originating group, and can eliminate broadcast storms in large networks. This provides a more secure and cleaner network environment. -
Page 36: Application Notes
1. Full-duplex operation only applies to point-to-point access (such as when a switch is attached to a workstation, server or another switch). When the switch is connected to a hub, both devices must operate in half-duplex mode. 2. Avoid using flow control on a port connected to a hub unless it is actually required to solve a problem. -
Page 37: Installing The Switch
NSTALLING THE Selecting a Site TigerStack units can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a location. • The site should: - be at the center of all the devices you want to link and near a power outlet. -
Page 38: Ethernet Cabling
NSTALLING THE WITCH Ethernet Cabling To ensure proper operation when installing the switch into a network, make sure that the current cables are suitable for 10BASE-T, 100BASE-TX or 1000BASE-T operation. Check the following criteria against the current installation of your network: •... -
Page 39: Equipment Checklist
• RS-232 console cable • This Installation Guide • Management Guide • SMC Warranty Registration Card—be sure to complete and return to Optional Rack-Mounting Equipment If you plan to rack-mount the switch, be sure to have the following equipment available: •... -
Page 40: Mounting
NSTALLING THE WITCH Mounting This switch can be mounted in a standard 19-inch equipment rack or on a desktop or shelf. Mounting instructions for each type of site follow. Rack Mounting Before rack mounting the switch, pay particular attention to the following factors: •... -
Page 41: Figure 3-2 Attaching The Brackets
U p li n U p li n 5 1 / D o w n 5 2 / U Figure 3-3 Installing the Switch in a Rack P W R D i a g R P U S t a c... - Page 42 Gerät. 2. Befestigen Sie das Gerät mit vier Rackmontageschrauben (nicht beigelegt) an dem Rack. 3. Wenn Sie nur einen Switch installieren, dann springen Sie bitte über zu "Verbinden mit einer Stromquelle" auf Seite 3-9 am Ende dieses Kapitels. 4. Wenn Sie mehrere Switches installieren möchten, dann montieren Sie sie untereinander in einer...
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Page 43: Desktop Or Shelf Mounting
Desktop or Shelf Mounting 1. Attach the four adhesive feet to the bottom of the first switch. Figure 3-4 Attaching the Adhesive Feet 2. Set the device on a flat surface near an AC power source, making sure there are at least two inches of space on all sides for proper air flow. -
Page 44: Installing An Optional Sfp Transceiver
3. Slide the SFP transceiver into the slot until it clicks into place. Note: SFP transceivers are hot-swappable. The switch does not need to be powered off before installing or removing a transceiver. -
Page 45: Connecting Switches In A Stack
Figure 3-6 shows how the stack cables are connected between switches in a stack. Each stacking connection is a 2 Gbps full-duplex link using Category 5 Ethernet cables. The switch supports a line- and ring-topology stacking configuration, or can be used stand alone. -
Page 46: Figure 3-6 Connecting Switches In A Ring-Topology Stack
6. Select the Master unit in the stack by pressing in the Master button on only one of the switches. Only one switch in the stack can operate as the Master, all other units operate in slave mode. If more than one switch in the stack is selected as Master, or if no switches are selected, the stack will not function. -
Page 47: Stacking Topologies
In other words, a new segment will resume normal operation unless it contains more than one switch and the Master button is not depressed on any of these switches. If the later case is true, and a segment fails to resume operation, you can either replace the failed connection to restore operation to the original stack, or depress the Master button on one of the switches in this segment. -
Page 48: Connecting To A Power Source
4. If you have purchased a Redundant Power Unit, connect it to the switch and to an AC power source now, following the instructions included with the package 4. An RPU is not yet available for this product. -
Page 49: Connecting To The Console Port
Connecting to the Console Port The DB-9 serial port on the switch’s rear panel is used to connect to the switch for out-of-band console configuration. The command-line-driven configuration program can be accessed from a terminal or a PC running a terminal emulation program. - Page 50 NSTALLING THE WITCH 3-14...
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Page 51: Making Network Connections
Connecting Network Devices The SMC6248M switch is designed to interconnect multiple segments (or collision domains). It can be connected to network cards in PCs and servers, as well as to hubs, switches or routers. It may also be connected to remote devices using the optional 1000BASE-SX, 1000BASE-LX, or 1000BASE-ZX SFP transceivers. -
Page 52: Connecting To Pcs, Servers, Hubs And Switches
Figure 4-1 Making Twisted-Pair Connections 2. If the device is a network card and the switch is in the wiring closet, attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet. (See the section “Network Wiring Connections.”) Otherwise, attach the other end to an available port on... -
Page 53: Network Wiring Connections
1. Attach one end of a patch cable to an available port on the switch, and the other end to the patch panel. 2. If not already in place, attach one end of a cable segment to the back of the patch panel where the punch-down block is located, and the other end to a modular wall outlet. -
Page 54: Fiber Optic Sfp Devices
50/125 or 62.5/125 micron multimode fiber optic cabling with an LC connector at both ends. Warning: This switch uses lasers to transmit signals over fiber optic cable. The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe in normal operation. -
Page 55: Figure 4-3 Making Fiber Port Connections
3. Connect one end of the cable to the LC port on the switch and the other end to the LC port on the other device. Since LC connectors are keyed, the cable can be attached in only one orientation. -
Page 56: Connectivity Rules
However, note that because switches break up the path for connected devices into separate collision domains, you should not include the switch or connected cabling in your calculations for cascade length involving other devices. -
Page 57: 100 Mbps Fast Ethernet Collision Domain
Table 4-3 Maximum 1000BASE-LX Gigabit Ethernet Cable Length Fiber Size 9/125 micron single-mode fiber Table 4-4 Maximum 1000BASE-ZX Gigabit Ethernet Cable Length Fiber Size 9/125 micron single-mode fiber * For link spans exceeding 70 km, you may need to use premium single-mode fiber or dispersion-shifted single-mode fiber 100 Mbps Fast Ethernet Collision Domain Table 4-5 Maximum Fast Ethernet Cable Length... -
Page 58: Cable Labeling And Connection Records
For each piece of equipment, identify the devices to which it is connected. • Note the length of each cable and the maximum cable length supported by the switch ports. • For ease of understanding, use a location-based key when assigning prefixes to your cable labeling. -
Page 59: Troubleshooting
• Be sure the cable is plugged into both the switch and • If the switch is installed in a rack, check the connections to the • Verify that the proper cable type is used and its length does not •... -
Page 60: Diagnosing Power Problems With The Leds
ROUBLESHOOTING Diagnosing Power Problems with the LEDs The Power and RPU LEDs work in combination to indicate power status as follows. Power LED RPU LED Status Green Amber Green Amber Green Power and Cooling Problems If the power indicator does not turn on when the power cord is plugged in, you may have a problem with the power outlet, power cord, or internal power supply. -
Page 61: In-Band Access
Then verify that you entered the correct IP address. Also, be sure the port through which you are connecting to the switch has not been disabled. If it has not been disabled, then check the network cabling that runs between your remote location and the switch. - Page 62 ROUBLESHOOTING...
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Page 63: Cables
Caution: DO NOT plug a phone jack connector into any RJ-45 port. This will damage the switch. Use only twisted-pair cables with RJ-45 connectors that conform with FCC standards. The figure below illustrates how the pins on the RJ-45 connector are numbered. -
Page 64: 10Base-T/100Base-Tx Pin Assignments
1, 2, 3, and 6, at one end of the cable, are connected straight through to pins 1, 2, 3, and 6 at the other end of the cable. When using any RJ-45 port on this switch, you can use either straight-through or crossover cable. Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts... -
Page 65: Straight-Through Wiring
(MDI-X), the two pairs of wires must be straight-through. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.) We recommend connecting all four wire pairs as shown in the following diagram to ease an upgrade to Gigabit Ethernet. -
Page 66: Crossover Wiring
“X” (which indicates MDI), a crossover must be implemented in the wiring. (When auto-negotiation is enabled for any RJ-45 port on this switch, you can use either straight-through or crossover cable to connect to any device type.) We recommend connecting all four wire pairs as shown in the following diagram to ease an upgrade to Gigabit Ethernet. -
Page 67: 1000Base-T Pin Assignments
1000BASE-T Pin Assignments All 1000BASE-T ports support automatic MDI/MDI-X operation, so you can use straight-through cables for all network connections to PCs or servers, or to other switches or hubs. The table below shows the 1000BASE-T MDI and MDI-X port pinouts. These ports require that all four pairs of wires be connected. -
Page 68: Fiber Standards
ABLES Note that when testing your cable installation, be sure to include all patch cables between switches and end devices. Adjusting Existing Category 5 Cabling to Run 1000BASE-T If your existing Category 5 installation does not meet one of the test parameters for 1000BASE-T, there are basically three measures that can be applied to try and correct the problem: 1. -
Page 69: Specifications
Physical Characteristics Ports 48 10/100BASE-TX, with auto-negotiation Two 10/100/1000BASE-T shared with two SFP transceiver slots Two 10/100/1000BASE-T or Stacking Ports (button selection) Network Interface Ports 1-48: RJ-45 connector, auto MDI/X 10BASE-T: RJ-45 (100-ohm, UTP cable; Category 3 or better) 100BASE-TX: RJ-45 (100-ohm, UTP cable; Category 5 or better) Ports 49-52: RJ-45 connector, auto MDI/X 10BASE-T: RJ-45 (100-ohm, UTP cable;... -
Page 70: Switch Features
External, supports a 14-pin connection for a redundant power supply Power Consumption 54 Watts maximum Maximum Current 2.0 A @ 100 VAC 1.0 A @ 240 VAC Switch Features Forwarding Mode Store-and-forward Throughput Wire speed Flow Control Full Duplex: IEEE 802.3-2002... -
Page 71: Management Features
Management Features In-Band Management Web, Telnet, SSH, or SNMP manager Out-of-Band Management RS-232 DB-9 console port Software Loading TFTP in-band, or XModem out-of-band Standards IEEE 802.3-2002 Ethernet, Fast Ethernet, Gigabit Ethernet Full-duplex flow control IEEE 802.1D Spanning Tree Protocol IEEE 802.1w Rapid Spanning Tree Protocol ISO/IEC 8802-3 Compliances CE Mark... - Page 72 PECIFICATIONS Safety CSA/CUS (CSA 60950 & UL60950) TÜV/GS (EN60950-1) CB (IEC 60950-1) Warranty Limited Lifetime...
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Page 73: Ordering Information
RDERING Table D-1 TigerStack 10/100 Products and Accessories Product Number Description SMC6248M 48 10/100BASE-TX port switch with two Gigabit combination ports with RJ-45 connectors which are shared with SFP transceiver slots, and 2 Gigabit stacking ports that can be used as normal... - Page 74 RDERING NFORMATION...
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Page 75: Auto-Negotiation
10BASE-T IEEE 802.3 specification for 10 Mbps Ethernet over two pairs of Category 3, 4, or 5 UTP cable. 100BASE-TX IEEE 802.3u specification for 100 Mbps Ethernet over two pairs of Category 5 UTP cable. 1000BASE-LX IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/ 125, 62.5/125 or 9/125 micron core fiber cable. - Page 76 Bandwidth The difference between the highest and lowest frequencies available for network signals. Also synonymous with wire speed, the actual speed of the data transmission along the cable. Collision A condition in which packets transmitted over the cable interfere with each other.
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Page 77: Full Duplex
Full Duplex Transmission method that allows two network devices to transmit and receive concurrently, effectively doubling the bandwidth of that link. Gigabit Ethernet A 1000 Mbps network communication system based on Ethernet and the CSMA/CD access method. IEEE Institute of Electrical and Electronic Engineers. IEEE 802.3 Defines carrier sense multiple access with collision detection (CSMA/CD) access method and physical layer specifications. -
Page 78: Network Diameter
Light emitting diode used for monitoring a device or network condition. Local Area Network (LAN) A group of interconnected computer and support devices. Media Access Control (MAC) A portion of the networking protocol that governs access to the transmission medium, facilitating the exchange of data between network nodes. -
Page 79: Transmission Control Protocol/Internet Protocol (Tcp/Ip)
Telecommunications Industry Association Transmission Control Protocol/Internet Protocol (TCP/IP) Protocol suite that includes TCP as the primary transport protocol, and IP as the network layer protocol. Unshielded twisted-pair cable. Virtual LAN (VLAN) A Virtual LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network. - Page 80 Glossary-6...
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Page 81: Index
Ethernet connectivity rules 4-7 Fast Ethernet connectivity rules 4-7 features C-3 management 1-10 switch 1-8 fiber cables 4-4 flow control, IEEE 802.3x 1-3 front panel of switch 1-2 full duplex connectivity 2-1 Gigabit Ethernet cable lengths 4-6 grounding for racks 3-4 NDEX Index-1... - Page 82 IEEE 802.3u Fast Ethernet 1-9 IEEE 802.3x flow control 1-3 IEEE 802.3z Gigabit Ethernet 1-9 indicators, LED 1-5 installation connecting devices to the switch 4-2 desktop or shelf mounting 3-7 network wiring connections 4-3 port connections 4-1 power requirements 3-1...
- Page 83 C-3 environmental C-2 physical C-1 power C-2 standards compliance C-3 IEEE C-3 status LEDs 1-5 switch architecture 1-2 switching introduction to 2-1 method 1-2 Telnet A-3 temperature within a rack 3-4 TigerStack 10/100 Products and Accessories D-1 troubleshooting...
- Page 84 NDEX Index-4...
- Page 86 Taiwan: Asia Pacific: Korea: Japan: Australia: India: Middle East: Thailand: If you are looking for further contact information, please visit www.smc.com, www.smc-europe.com, or www.smc-asia.com. 38 Tesla Irvine, CA 92618 Phone: (949) 679-8000 (800) SMC-4-YOU; Fax (949) 679-1481 34-93-477-4935; Fax 34-93-477-3774 44 (0) 1932 866553;...
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