3COM Switches User Manual

10/100/1000 Mbps networking solutions
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The only certainty in networks today is that bandwidth demands will continue to increase. As more com­plex and time-sensitive applications such as voice and video are created for the desktop, a higher volume of traffic is generated throughout the network. This results in network bot­tlenecks that can cause performance problems within workgroups, to and from servers, and across the back­bone. Switching technology has proven to be the most cost-effective, flexible, and least disruptive way to add and manage bandwidth at every level of your network.
3Com has the broadest array of switching solutions to match your particular requirements. To safeguard your investment, we offer a family of stackable switches that delivers Ethernet, Fast Ethernet, Gigabit Ethernet, ATM technologies, and Layer 3 switching to solve any performance problem. No matter which product you start with today
in one area of your network, you can be assured of a complete migration path and compatible solutions to take you to the next step tomorrow. And that covers everything from the desktop to the backbone.
Make any of the SuperStack
®
II
switches part of a 3Com
®
SuperStack system. The SuperStack II product family offers scalable multitechnology connections, integrated management with a common look and feel, and optional uninterruptible and redundant power systems.
For those who require the high quality, reliability, and robustness of the 3Com SuperStack II family, but without management capabilities, the SuperStack II family of Baseline switches provides a cost-effective range of products in a variety of port densities.
Key Benefits
Protects your investment. The 3Com SuperStack II switching family protects your investment by delivering low cost of owner­ship, end-to-end compatible solutions, and smooth migration from lower to higher bandwidth technologies.
Ships with 3Com Transcend
®
Network Supervisor. PC-based application providing powerful, yet easy-to-use network man­agement tuned to the needs of small-to-medium enterprises.
Delivers the capabilities you need. Autosensing 10/100
Mbps, advanced stackability, multimedia, VLAN support, RMON, and Layer 3 switching help you to build the most effi­cient and responsive network for your company.
Year 2000 compliance. All SuperStack II switches are Year 2000 compliant.
+5 lifetime limited warranty.
Available on SuperStack II Switch 610, 1100, 3300, 3300 FX, and 3300 XM.
Free 90-day telephone tech­nical support. 3Com offers
assistance with installation, configuration, and trouble­shooting, in addition to the 3Com Knowledgebase Web service.
The SuperStack II family of switches makes high-performance, low-cost switching a reality at the desktop, workgroup, and backbone.
data sheet
Switches
Flexible, affordable 10/100/1000 Mbps stackable switches for boosting performance at the desktop, workgroup, and backbone
3Com®SuperStack®II
®
2
raw bandwidth of Gigabit Ethernet, ATM provides alternative methods for delivering effective backbone solutions, such as Quality of Service (QoS), which guarantees bandwidth to applications. The control offered by ATM enables the deterministic delivery of applications and services in complex network environments.
Layer 3 Switching
Intranets and extranets, while proving indispensable for companies of all sizes, are also causing new traffic management problems. Hypertext links between servers and e-mails create any-to-any traffic that are overwhelming legacy LAN routers. As a result, companies are experiencing more bottlenecks between subnetworks. Layer 3 switching solves these intranet bottleneck problems by embedding classical routing in the switch hardware that routes traffic at high speeds while intelligently isolating faults, containing broadcast traffic, and providing seamless subnet/VLAN connections.
SuperStack II Switches for All Your Technology Needs
Today, your desktop population probably requires a mix of 10 Mbps and 100 Mbps service to meet the individual demands of your users. As you deliver higher speeds to the desktop, server connections may become strained, so you need options to scale to Fast Ethernet, Gigabit Ethernet, or ATM for high-speed desktop and server connections as well as in the backbone. With the SuperStack II family of switches, you can support all of your bandwidth requirements with the appropriate technology and the appropriate level of control.
Ethernet
Today, Ethernet is the most popular topology for implementing local area networks. Ethernet provides bandwidth that can be either shared across a number of users using hubs, or dedicated to workstations using switched technology. The availability of low-cost Ethernet switches has also made it possible to deliver dedicated 10 Mbps full-duplex links to the desktop, for affordable high­performance, high-functionality, and highly manageable networks.
Fast Ethernet
Fast Ethernet, based on the Ethernet standard, is a high-speed technology that runs over your existing infrastructure, works with your existing management systems, and requires no retraining by your IT staff. Fast Ethernet is one of the most popular high-speed technologies because it’s cost effective, stable, and compatible with existing Ethernet LAN environments. Fast Ethernet runs over fiber and copper. For greater perfor­mance, full-duplex is also supported.
10/100 Ethernet/Fast Ethernet
10/100 Ethernet/Fast Ethernet with autosensing capability is one of the most economical and flexible ways to add bandwidth immediately—while maintaining migration options to higher bandwidth in the future. 10/100 technology combines conventional 10BASE-T and high-speed 100BASE­TX support in one device, delivering higher bandwidth to the desktop, aggregating 10/100 hubs, and maintaining the status quo for those who are efficiently served by 10 Mbps Ethernet. With 10/100 autosensing functionality, there is no need to
configure individual switched ports. The switch automatically senses the speed of the connected end device (either 10 Mbps or 100 Mbps) and channels the data through at the appropriate speed.
Gigabit Ethernet
Gigabit Ethernet retains the traditional simplicity and manageability of Ethernet and Fast Ethernet, making it easy to integrate with existing LAN equipment. It allows a tenfold increase in backbone bandwidth over Fast Ethernet with minimal impact on support staff. The extra bandwidth helps you deal with unplanned changes and additions to the network, and frees you from constantly tuning the network. Gigabit Ethernet is a powerful backbone/server solution because it delivers phenomenal bandwidth cost effectively, preserves the Ethernet frame format, and works with your existing traffic management systems.
ATM
ATM is an established LAN backbone technology that offers significant benefits to larger organizations by providing tight integration between LAN and WAN environments and offering high levels of resilience and redundancy. In the LAN environment, OC-3c (155 Mbps) and OC-12c (622 Mbps) connections are used to communicate across the network. While these connections do not provide the
In This Guide:
SuperStack II Switches for All Your Technology Needs .......................................................2
Features Supported for SuperStack II Switches .................................................................4
Product Configurations (Diagrams) ................................................................................6–7
New Products
SuperStack II Baseline 10/100 Switches .....................................................................8
SuperStack II Switch 610.............................................................................................9
SuperStack II Switch 1100/3300 Family ...............................................................10-12
SuperStack II Switch 1100 and 3300—Optional High-Speed Accessories ............13-14
SuperStack II Switch 3800.........................................................................................15
SuperStack II Switch 3900 and Switch 9300..............................................................16
SuperStack II Switch 9000.........................................................................................18
SuperStack II Switch 9100.........................................................................................19
SuperStack II Switch 2200.........................................................................................20
SuperStack II Switch 2700.........................................................................................20
Network Management ...............................................................................................21
SuperStack II Switches at a Glance ............................................................................22–23
Specifications.............................................................................................................24–27
Technology Supported for SuperStack II Switches...........................................................25
Ordering Information .......................................................................................................28
Backbone WAN/SNA Host
Power Systems
Transcend Network Management Architecture
RMON-2 Probes
OpenHub
Access Servers
SDLC Converters
Routers
Switches
Hubs
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SuperStack®II Systems
The 3Com®SuperStack®II system gives you a flexible, cost-effective connectivity solution for local, wide area, and SNA networks. You can combine diverse technologies and network services in one stacked system, strengthen it with uninterruptible and redundant power systems, and manage it all with Transcend®network management and control solutions.
As an important part of the 3Com Transcend Networking framework, SuperStack II systems will meet your evolving network needs—future proofing your network investment.
A single SuperStack II system provides connections for a range of network environments and protocols: Ethernet, Fast Ethernet, Layer 3 switching, Gigabit Ethernet, Token Ring, FDDI, ISDN, X.25, Frame Relay, and ATM. Depending on your needs, you can build SuperStack II systems for virtually any network environment. Capabilities include:
Hubs for flexible workgroup connectivity that feature SNMP, RMON, and Web-based management
Industry-leading physical layer support for Token Ring networks, including Token Ring switching
Full SNMP, RMON, and Web-based management for Ethernet, Fast Ethernet, Gigabit Ethernet switches, as well as a dedicated RMON-1/RMON-2 probe
Full range of switches to increase performance in high-speed client/server LANs
Full, multiprotocol network access for telecommuters or users at other off-site locations
Routing between central site and branch offices using innovative Boundary Routing®architecture or conventional routing software for multiple WAN choices, including ISDN
SNA-to-LAN conversion linking local and remote offices to an SNA host system
Choice of power systems to ensure uninterrupted network operation
For smaller offices of fewer than 20 users, our OfficeConnect®products can be used to complement SuperStack II systems.
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Features
Stackability
Four SuperStack II Switch 1100 or Switch 3300 units can be interconnected to form a stack that offers unrivaled performance and management features.
Each unit has a built-in connector at the rear of the unit called the matrix port. Two units can be connected back­to-back with a SuperStack II Switch matrix cable. To connect more than two units, a SuperStack II matrix module can be inserted into the high-speed module slot of one of the units in the stack, and a matrix cable can be used to connect to each switch in the stack.
Stacking provides the user with a plethora of benefits. These include the ability to manage in excess of 100 ports as a single logical entity. Configuration is therefore faster and simpler. Stacking also provides the user with the optional resilient IP addresses across the stack. Thus if a failure should occur, the resilient IP address can be used for management stacking using the SuperStack II Switch matrix module and cable, keeping front panel ports free and increasing the number of matrix ports in an aggregated system.
Management
Transcend®network management
All SuperStack II switches are managed by 3Com Transcend
®
network manage­ment and control solutions. Transcend solutions give you end-to-end visibility
Features Supported for SuperStack II Switches
Disconnect Unauthorized
Device (Security)
Transcend network
management support
Stackable with matrix
module & cable
Web-based
management
PACE technology
RMON support
Flow control
(IEEE 802.3x)
Roving Analysis Port
IEEE 802.1D
(incorporating 802.1p)
Dual queues
and control over all devices in your network with two levels of management:
1) technologies, such as embedded SmartAgent
®
software and RMON, within 3Com devices throughout the network, and 2) centralized highly automated applications at the network center for monitoring, configuring, and troubleshooting all devices in the network.
Ships with 3Com Transcend Network Supervisor
This PC-based application provides powerful, yet easy-to-use network management tuned to the needs of small­to-medium enterprises. Network devices are automatically discovered and network activity and stress monitored through an intuitive graphical interface focused on the tasks and information all managers need to take control of their network.
Web-based management
Manage your switches with any Web browser, either through direct or dial-up connection or across the LAN. This delivers ease of use and accessibility to network management personnel and reduces in-service costs, but still with full security.
Security—Disconnect Unauthorized Device (DUD)
LAN security architecture with DUD automatically disconnects unauthorized devices from the LAN.
Roving Analysis Port (RAP)
RAP allows a network analyzer attached to any unit in a stack to monitor any of the switch ports or virtual LANs (VLANs) in the stack. It also minimizes
the time required for problem determi­nation and resolution and maximizes switch uptime, thereby lowering your cost of ownership.
RMON support
Transcend software’s powerful combi­nation of RMON (Remote Monitoring, a superset of SNMP MIB II) and embedded SmartAgent software reduces the processing burden on your manage­ment station, minimizes network traffic, and saves time by automatically moni­toring and analyzing your network. RMON tells you at a glance how the network is performing and who is using it the most. And Transcend software gives you the added benefit of RMON features in your network without the processing and memory costs usually associated with RMON. See the At­a-Glance RMON Support table on page 24 for details on RMON groups supported by SuperStack II switches.
Class of Service (CoS)
CoS can be defined simply as a method for prioritizing various traffic types. 3Com switches can support two methods of enabling CoS on Ethernet networks. The first method is IEEE 802.1D (incorporating 802.1p), which enables eight levels of prioritization; and the second method is 3Com’s innovative PACE
®
technology, which allows the user to specify certain applications as high priority. A hardware feature, dual queues, is used to exploit these traffic prioritization schemes; the dual queues function—required for CoS—will
Half-duplex
Flow Control-I
Ships with Transcend
Network Supervisor
SuperStack II Baseline 10/100 Switch ●● SuperStack II Switch 610 ●●● ●●●●● ●●● SuperStack II Switch 2200 ●● SuperStack II Switch 2700 ●● SuperStack II Switch 1100 ●●●●●●●●●●●● SuperStack II Switch 3300 ●●●●●●●●●●●● SuperStack II Switch 3300 XM ●●●●●●●●●●●● SuperStack II Switch 3300 FX ●●●●●●●●●●● SuperStack II Switch 3800 ●● SuperStack II Switch 3900 ●●● ●●●● SuperStack II Switch 9000 ●● SuperStack II Switch 9100 ●●● ●●●● ●●● SuperStack II Switch 9300 ●●● ●●●●
Optional—Achieved with SuperStack II Switch Layer 3 plug-in module
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VLANs
VLANs allow PCs, workstations, and other resources, including printers and file servers, to be organized into logical, broadcast domains so that only devices within the same domain can commu­nicate with each other. 3Com switches allow users to implement VLANs on their network using one of two schemes: IEEE 802.1Q, including GVRP, which enables the auto-learning of VLANs, or 3Com’s VLT. Both methods allow for the configuration of VLANs based on ports and/or MAC addresses for maximum flexibility and security. For 802.1Q VLANs, a port on a switch can be assigned to a VLAN; all other switches learn about that VLAN when the switches automatically communicate that knowledge via the GVRP protocol.
Switches supporting both VLAN schemes can be used to provide seamless migration from VLT to IEEE 802.1Q environments that preserve investment in current LAN developments and equipment.
Layer 3 Support
Multicast filtering using IGMP snooping
Multicast filtering enables the automatic configuration of filters for IP multicast traffic, such as video and audio broad­casts, allowing advanced multimedia applications to be delivered easily to the workgroup.
Fast IP
Fast IP is 3Com’s standards-based cut­through routing solution for all types of legacy routing network backbones. This reduces traffic flow through router bottlenecks and maximizes performance by utilizing the switched infrastructure.
Layer 3 switching
Layer 3 switching is the implementation of routing protocols in leading-edge ASIC technology. Routing performance is dramatically and cost effectively boosted to enable the widespread deployment of intranets (IP-based networking).
automatically enable a second port buffer for high-priority traffic thereby allowing the traffic to bypass lower pri­ority data for faster processing within the switch.
Traffic Management
Flow control
Flow control is an essential switch feature that eliminates dropped packets on congested ports. To provide switch application flexibility, 3Com switches support flow control schemes suited to both full- and half-duplex environments. Intelligent Flow Management (IFM) is a solution designed to work in half duplex, for example, a hub aggregation application. A solution using IEEE
802.3x is also supported and designed for full-duplex connections, such as desktop switching; this method of flow control is set automatically using the autosensing features of SuperStack II switches.
Broadcast traffic control
Traditional Ethernet switches suffer from the threat of broadcast storms that can potentially bring networks to a halt. However, all SuperStack II switches can be configured with broadcast storm protection to limit the number of broadcast packets allowed to be forwarded by each port. This allows the SuperStack II switches to offer the security of broadcast storm protection normally associated with a router while also providing the protocol independence of a switch.
Network Availability
Backup power supplies
3Com gives you all the choices you need to ensure constant power to your stackable switches. Both the Advanced Redundant Power System (ARPS) and the Uninterruptible Power System (UPS) work with any SuperStack II switch. The ARPS is ideally suited as a backup for individual power supplies in the SuperStack II units. The UPS fully protects your SuperStack II system from the effects of brownouts or spikes that occur in outside power lines.
Resilient links
3Com’s simple and flexible resilient links technology ensures fault tolerance via redundant connections to other network devices.
Spanning tree
Support for the industry-standard IEEE 802.1D spanning tree protocol is provided as an alternative to resilient links. This protects against network loops and can be used to provide redundant network paths.
Port trunking
Port trunking establishes backbone links by treating multiple parallel links as a single network pipe. Trunking also provides link redundancy; traffic on any failed link comprising a network trunk automatically switches over to the other links in the trunk.
Resilient links
UPS backup power
supplies
VLAN (IEEE 802.1Q )
Spanning tree
Broadcast traffic control
Intelligent
switching mode
Layer 3 switching
Trunking
Fast IP
Multicast filtering using
IGMP snooping
Full duplex on all
ports
l-IFM
VLAN (VLT )
●●
●●●●●●●●●●●●
●●
●●
●●●●●●●●●●●●
●●● ● ●● ●● ●● ●
●●● ● ●● ●● ●● ●
●●● ● ●● ●● ●●●
●●
●● ● ●● ● ●
●●
●● ● ●●
●●● ● ● ●● ●●
ARPS/Type 2 backup
power supplies
6
Print server on
Fast Ethernet LAN and WAN connectivity
A medium-sized corporation supporting a mixture of switched and shared workgroups has a central Fast Ethernet backbone.
In the basement, a stack of SuperStack II Switch 3300s provides Fast Ethernet 10/100 Mbps links to the floors and 10/100 connections for local servers, and it also provides the ability to scale to Gigabit Ethernet when needed. The entire network is managed at the Transcend network management console or via Web-based management at any browser. Intranet traffic is managed simply and cost effectively when a SuperStack II Switch Layer 3 module is plugged into a SuperStack II Switch 3300.
On the first floor, a stack of SuperStack II Switch 1100s provides dedicated switched 10 Mbps for those users using simple appli­cations such as mail.
On the second floor, the SuperStack II Dual Speed Hub 500 with a mixture of 100 Mbps and 10 Mbps users is connected to a switched 100 Mbps backbone via the data center SuperStack II Switch 3300 stack.
On the third floor, a SuperStack II Switch 1100 and 3300 stack provides dedicated switched 10 Mbps and 10/100 Mbps to power users for transferring large files and multimedia traffic.
bps
100 M
bps
Switched 10 M
workgroup
®
II system with
SuperStack
SuperStack II Switch 3300
and 1100
Power users on
dedicated 100 Mbps
Volume intranet
user on dedicated 10 Mbps
User running
ultimedia
m
Floor 3
ixed/shared
M
100 M
and 10 M
bps
bps users
Printer on
10 Mbps
SuperStack II Switch 3300*
Type 2 ARPS and SuperStack II
Switch Layer 3 module
SuperStack II system
with SuperStack II
Switch 3300
SuperStack II system with
SuperStack II Switch 1100
®
Transcend
management console
network
Floor 2
bps workgroup
Switched 10 M
Floor 1
SuperStack II
Enterprise Monitor probe
Basement
Server farm
* For fiber connectivity, use the SuperStack II Switch 3300 FX.
100 Mbps 10 Mbps
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7
SuperStack II Switch 3900
Local server
Switched Fast Ethernet
high-speed power users
Switched
10 M
bps
Volume intranet
user
SuperStack
®
II system with
SuperStack II Switch 3300
and UPS
SuperStack II Switch 9300
**
and Type 2 ARPS
PC running multimedia
videoconferencing
Power users on
switched Fast
Ethernet
Users on
switched Fast
Ethernet
Gigabit
Ethernet
SuperStack II system with
SuperStack II Switch 3900
*
Floor 1
Basement
Floor 2
Floor 3
Gigabit
Ethernet
Gigabit Ethernet
(1000 Mbps)
server farm
Switched
Ethernet
Transcend
®
network
management console
Existing desktop
Local server using
100 Mbps
Servers using
100 Mbps
SuperStack II Switch 3300
and SuperStack II Switch 1100
and UPS
*
For 10/100/1000 Mbps Layer 3 switching, use the SuperStack II Switch 3800.
**
For Gigabit Ethernet Layer 3 switching, use the SuperStack II Switch 9000.
0
5
1
0
1
5
2
0
2
5
3
0
100 Mbps
1000 Mbps
10 Mbps
Gigabit Ethernet LAN and WAN connectivity
An organization supporting a mixture of 10/100 Mbps switched and shared desktop connections has migrated to a Gigabit Ethernet backbone.
3Com has taken an early lead in the Gigabit Ethernet market by providing the ability to utilize this new high-speed technology while protecting your existing network infrastructure investment.
In this configuration, the SuperStack II system in the basement comprises a Switch 9300, a Switch 3900, and an Advanced Redundant Power System for added resilience. The Switch 9300 provides the Gigabit Ethernet switching backbone and links to Gigabit Ethernet servers while the Switch 3900 provides unconstrained access to a large Fast Ethernet server farm. This configuration provides the fastest backbone solution and fastest server access for all floors.
On the first floor, the SuperStack II Switch 3900 provides line­rate services to power users directly connected to switched Fast Ethernet ports.
On the second floor, the SuperStack II Switch 3300 and Switch 1100 provide network connectivity to switched 10 Mbps and 100 Mbps users, and the use of an optional SuperStack II Switch 1000BASE-SX module provides Gigabit Ethernet support.
On the third floor, the SuperStack II Switch 3300 provides line­rate services to power users on switched Fast Ethernet as well as switched 10 Mbps services to less demanding users, and con­nects shared 10 Mbps and 10/100 hubs to the Gigabit Ethernet backbone. The network is managed at the Transcend network management console.
8
The 3Com SuperStack II Baseline 10/100 switches provide the highest performance product in the SuperStack II Baseline family. Delivering the power of switched Fast Ethernet while automati­cally sensing the speed of the connected devices, the SuperStack II Baseline switches are ideal for any environment where raw power and performance are needed, but management is not required. The Baseline 10/100 switches can be used as an aggregation device connecting to other switches or hubs, or to provide cost-effective, high­performance desktop connections.
The Baseline 10/100 switches provide 12 or 24 10/100BASE-TX (Fast Ethernet) switched ports that automatically detect the speed of connected devices, optimizing network performance to 100BASE-TX, where applicable. The SuperStack II Baseline switches are unmanaged and work straight out of the box.
Key features include:
12 or 24 RJ-45 10BASE-T/ 100BASE-TX autosensing ports provide the ultimate in high-speed switching connectivity.
Autonegotiating full-/half-duplex operation on each port doubles the speed of each network connection to 200 Mbps.
MAC addresses support up to 4,000 network devices on your local area network.
IEEE 802.3x Flow Control ensures network traffic is not lost during peaks in traffic rates on high­throughput, full-duplex links.
19” size for easy installation in a wiring closet. A rackmounting kit is supplied. The product can also be used free-standing.
Diagnostic LEDs indicate network traffic and port status of each port, making it easy to spot-check faults and check individual port status.
3Com lifetime limited warranty
Connection for the SuperStack II Advanced Redundant Power System provides ultimate protec­tion against network downtime. The SuperStack II Advanced Redundant Power System and Uninterruptible Power System are also available from 3Com.
SuperStack II Baseline 10/100 Switches
SuperStack II Baseline 10/100 Switches
Front view of 24 port
Back view
24 ports (RJ-45) LEDs for link status
and network traffic
Advanced RPS
connector
(Type 2)
MDI/MDIX
switch
Front view of 12 port
LEDs for link status and network traffic
MDI/MDIX
switch
12 ports (RJ-45)
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When you need low-cost 10 Mbps and 10/100 Mbps switching coupled with high levels of performance and man­ageability, then look no further than the SuperStack II Switch 610.
The SuperStack II Switch 610 is based on the high-performance BRASICA
II architecture found in the SuperStack II Switch 1100 and 3300, offering high levels of performance and manageability at an unsurpassed price.
About the Switch
The SuperStack II Switch 610 is perfect for desktop connectivity and can sup­port up to 6,000 MAC addresses.
Switch 610 is available in a 24-port version and features two built-in autosensing 10/100 Mbps Fast Ethernet ports. (As with other SuperStack II switches, the Switch 610 features autosensing 10/100 Mbps ports that adjust for 10BASE-T and 100BASE­TX attached devices.) It automatically provides full-duplex/half-duplex capability on all ports to boost bandwidth for servers and power users.
The SuperStack II Switch 610 sup­ports the following features:
Web browser interface to locate
management and configuration
functions
Resilient links and spanning tree
Optional SuperStack II backup
power supplies
Elastic port buffering, enabling
on-the-fly allocation of memory for automatic performance optimization based on network traffic
RMON - 7 groups and RAP
Dual queues to facilitate traffic
prioritization
Multicast filtering using IGMP
snooping/GMRP
Flow control improves performance
and minimizes packet loss under heavy network loading
VLT VLAN tagging protects
investment infrastructure
802.1Q standard-based VLANs with
GVRP support to facilitate dynamic VLAN membership
SuperStack II Switch 610 for Ethernet and Fast Ethernet
Back view
Front view of 24 port
SuperStack II Switch 610
24 switched 10BASE-T/RJ-45 ports 2 10/100BASE-TX ports
AC connection
Advanced Redundant Power System connection
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