3Com Switch 4500 Family User manual

DATA SHEET
3Com®Switch 4500 10/100 Family
Intelligent and secure
edge connectivity, ideal
for small and medium
enterprise and branch
office networks and
essential business
applications.
OVERVIEW
The 3Com®Switch 4500 family of managed, stackable 10/100 Ethernet
switches provides secure, flexible LAN connectivity for enterprise and
branch office networks. The Switch 4500 family offers Layer 2 switching
and dynamic Layer 3 routing, as well as robust security, Quality of Service
(QoS) and management features to deliver intelligent edge connectivity
for essential business applications.
Four switch models—stackable in any combination up to eight units—
include:
>3Com Switch 4500 26-Port:
24 10/100 ports plus 2 dual-personality Gigabit ports
>3Com Switch 4500 50-Port:
48 10/100 ports plus 2 dual-personality Gigabit ports
>3Com Switch 4500 PWR 26-Port:
24 10/100 Power over Ethernet (PoE) ports plus 2 dual-personality
Gigabit ports
>3Com Switch 4500 PWR 50-Port:
48 10/100 PoE ports plus 2 dual-personality Gigabit ports
KEY BENEFITS
SECURES THE NETWORK
Essential security features provide user and device authentication, enforce
access control for switch management and enhance overall network
security to protect critical resources and information.
EMPOWERS APPLICATION CONVERGENCE
The Switch 4500 familycombines high performance switching, QoS
and advanced traffic management features to help ensure essential
applications get the appropriate priority for efficient utilization of
network resources.
REDUCES DEPLOYMENT COSTS
TwoSwitch 4500 models provide Power over Ethernet (PoE). PoE
provides electrical power and data connectivity over a single Ethernet
cable—resulting in significant cost savings when deploying devices
likeIP phones, wireless access points and IP security cameras.

3Com®Switch 4500 10/100 Family
2
INCREASES FLEXIBILITY AND SCALABILITY
Add switches to the stack when needed—without increasing management
difficulty and expense—because the Switch 4500 family employs
aflexible design with user-configurable “dual-personality” Gigabit
Ethernet interfaces and the ability to stack up to eight switch units
(384 10/100 ports) that can be managed as a single entity.
ENHANCES MANAGEMENT AND CONTROL
The Switch 4500 family is easy to use and manage, designed to increase
business productivity by reliably supporting business applications.
Additionally, the PoE models deliver intelligent power management
(“smart PoE”) with dynamic allocation of available power resources.
MINIMIZES VOICE OVER IP COMPLEXITY
Minimize the cost and complexity associated with adding or moving
IP phones: the Switch 4500 detects the presence of IP phones and
dynamically assigns switch ports to the voice VLAN, enabling automated
configuration and prioritization of Voice over IP (VoIP) traffic.
DELIVERS HIGH PERFORMANCE
No need to buy new switches when additional network performance is
needed, as the Switch 4500 family features 26-port and 50-port models,
providing aggregate switching capacity up to 8.8 Gbps and 13.6 Gbps,
respectively.
REDUCES CONFIGURATION EXPENSE
Automatic updating of Layer 3 network topologies, negotiation of port
speed and duplex mode, and detection and adjustment of cable type
reduces configuration time and expense.
SUPPORTED BY LIMITED LIFETIME HARDWARE WARRANTY
3Com gives a Limited Lifetime Hardware Warranty on the Switch 4500
10/100 Family. Advance Hardware Replacement, with Next Business
Day shipment in most regions, is provided upon product registration.
See www.3com.com/warranty for details.
KEY BENEFITS
(CONTINUED)

3Com®Switch 4500 10/100 Family
3
FEATURE HIGHLIGHTS
Feature Description
IEEE 802.1X network access control Standards-based security combined with RADIUS authentication
RADIUS Authenticated Device Access Authentication of attached devices via MAC address for additional level of
(RADA) endpoint security
Access Control Lists (ACLs) Enable usage policies at each point of access to the network via the switch
Bandwidth rate limiting and protocol Enforce controls on each port for efficient use of network resources and
filtering prioritization of delay-sensitive VoIP traffic
PoE support Internal power supply provides a total PoE power budget of 300 Watts to
PoE-enabled devices like IP phones; optional supplemental power available
“Dual-personality” Gigabit Ethernet Choice of copper or fiber media for flexible uplinks
interfaces
Multicast filtering and Rapid Spanning Improve QoS, scalability and network availability
Tree Protocol support
Dynamic routing Routing Information Protocol (RIP) allows automatic updating of Layer 3
network topologies
Secure management Authentication and encryption of management traffic via Secure Shell
(SSH v2) and SNMP v3
3Com Operating System Proven software featured in 3Com premium enterprise switches such as
the Switch 5500, 7700 and 8800 families
Service and Support Backed by 3Com Global Services and authorized partners with
demonstrated expertise in network assessment, implementation and
maintenance

3Com®Switch 4500 10/100 Family
4
CAMPUS LAN CONFIGURATION SUPPORTED BY THE SWITCH 4500
PoE Gigabit
Ethernet
Gigabit
Ethernet
Gigabit
Ethernet
Gigabit Link Aggregation
(IEEE802.3ad)
PoE
3ComSwitch 4500
3Com Switch 4500
3ComSwitch 4500
3ComSwitch 4500
10/100
PoE
1 Gbps
Ethernet/Fast Ethernet
Gigabit Ethernet
PoweroverEthernet(PoE)
Link Aggregation(LAG)
3Com
®
3102
VoIPPhones
Server Farm
3Com 3102
VoIPPhones
3ComRouter 5012
3ComSwitch7754
Data Center
Building 1Building 2
3CR17450-91
Switch3870
3ComSwitch 3870
Switch3870 3ComSwitch 3870
3Com NBX
®
V5000
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17561-91SuperStack3Switch450026-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17561-91SuperStack3Switch450026-Port
WAN / Internet
3Com Switch 4500
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
3CR17562-91SuperStack3Switch450050-Port
Gigabit
Ethernet
3Com
®
3102
VoIP Phones
3Com Wireless LAN
Access Point 8250
Server
3Com Router 3012
3Com NBX
®
V3000
3ComNBXV3000
3ComNBXV3000
3ComNBXV3000
PoE
Ethernet/Fast Ethernet
Gigabit Ethernet
Power over Ethernet (PoE)
WAN / Internet
SMALL-TO-MEDIUM LAN CONFIGURATION SUPPORTED BY THE SWITCH 4500

3Com®Switch 4500 10/100 Family
5
Suggested Service, Support and Training Offerings
Network Health Check An activity-auditing service focused on improving network performance
and productivity
Includes traffic monitoring, utilization analysis, problem identification,
and asset deployment recommendations
Extensive report provides blueprint for action
Network Installation and Experts set-up and configure equipment and integrate technologies to
Implementation Services maximize functionality and minimize business disruption
For large and complex sites, implementation services include personalized
configuration, project management, extended testing and coaching on
network administration
Project Management Provides extra focus and resources that special projects demand
3Com engineers manage entire process from initial specifications to
post-project review
Using structured methodology, requirements are identified, projects
planned and progress of implementation activities tracked
3Com GuardianSM Maintenance Service This service provides comprehensive on-site support and includes
advance hardware replacement, telephone technical support and
software upgrades
3Com ExpressSM Maintenance Service This service provides speedy access to 3Com shipment of advance
hardware replacements, software upgrades and telephone support
3Com University Self-paced and instructor-led technology and product courses, plus
certification programs
3Com Global Services offers the resources and talents of a major
corporation plus more than two decades of experience in resolving
network challenges and delivering business benefits to enterprises
around the world.
Global support with a personalized focus in the local language helps
drive productivity and minimize expenses. Because 3Com understands
both the technology and the business, we’re the partner you need to
maintain your competitive edge and remain strong.
SERVICE AND SUPPORT

3Com®Switch 4500 10/100 Family
All information in this section is
relevant to all members of the 3Com
Switch 4500 10/100 family, unless
otherwise stated.
CONNECTORS
26-port non-PWR
24 auto-negotiating 10BASE-T/
100BASE-TX ports configured as auto
MDI/MDIX
2dual-personality Gigabit port pairs,
configurable as 1000BASE-T or SFP
26-port PWR
24 auto-negotiating 10BASE-T/
100BASE-TX ports configured as auto
MDI/MDIX; IEEE 802.3af in-line power
2dual-personality Gigabit SFP pairs;
unit ships with two 1000BASE-T SFPs
50-port models
48 auto-negotiating 10BASE-T/
100BASE-TX ports configured as auto
MDI/MDIX; IEEE 802.3af in-line
power for PWR models
2dual-personality Gigabit SFP pairs;
units ship with two1000BASE-T SFPs
PERFORMANCE
26-port
8.8 Gbps switching capacity,
maximum
6.5 Mpps forwarding rate, maximum
50-port
13.6 Gbps switching capacity,
maximum
10.1 Mpps forwarding rate, maximum
All models
Wirespeed performance across all
ports within stack or fabric
Store-and-forward switching; latency
<10 µs
2Gbps full-duplex stacking bandwidth
LAYER 2 SWITCHING
8,000 MAC addresses in address table
12 static MACaddresses, in addition to
default address
256 Port-based VLANs (IEEE 802.1Q)
IEEE 802.3ad Link Aggregation
Control Protocol (LACP); automated
and manual aggregation
Per-switch trunk groups: 13 groups
(26-port); 25 groups (50-port)
810/100 ports or 2 Gigabit ports per
group
Auto-negotiation of port speed and
duplex
IEEE 802.3x full-duplex flow control
Back pressure flow control for half-
duplex
Supports broadcast storm suppression
per VLAN
IEEE 802.1D Spanning Tree Protocol
(STP)
IEEE 802.1w Rapid Spanning Tree
Protocol (RSTP)
BridgeProtocol Data Unit (BPDU)
protection
Internet Group Management Protocol
(IGMP) snooping on Layer 2 interfaces
Filtering for 128 multicast groups
LAYER 3 SWITCHING
Hardware based routing
12 static routes, in addition to default
address
1,990 dynamic Address Resolution
Protocol (ARP) entries; 10 static
4IP interfaces
Routing Information Protocol (RIP), v1
and v2; supports 2,000 entries
Dynamic Host Configuration Protocol
Relay (DHCP Relay)
CONVERGENCE
Eight hardware queues per port
Weighted Round Robin (WRR)
IEEE 802.1p Class of Service/Quality
of Service (CoS/QoS) on egress
Auto prioritization of voice traffic
determined by vendor OUI
DiffServ Code Point Expedited
Forwarding (DSCP EF) remarking for
prioritization of VoIP traffic
Traffic shaping with port-based egress
rate limiting; application and protocol
blocking
IEEE 802.3af Power over Ethernet
standards-compliant (PWR models)
POE (PWR MODELS ONLY)
IEEE 802.3af PoE injection into
Category 5 or 5e LAN wiring (300 W
total maximum)
Available standards-based DC
supplemental power system supplies
up to 15.4 W each of power to all PoE
ports in a switch or stack (5,914 W
total maximum)
SECURITY
IEEE 802.1X Network login user
authentication:
• EAP over LAN (EAPoL) transport
with EAP-MD5, PAP and CHAP
authentication
• Multiple users per port
• 1024 users per fabric
Local and RADIUS server authentication
RADIUS session accounting
Automatic VLAN assignment via
RADIUS server
Wirespeed packet filtering in hard-
ware
ACLs filter at Layers 2, 3 and 4:
•Source/destination MAC address
•Ethernet type
•Source/destination IP address
• Source/destination TCP port
• Source/destination UDP port
RADIUS Authenticated Device
Access (RADA): authenticate devices
based on MACaddress against
RADIUS server, and assign VLAN ID
and ACL
Port-based MAC address Disconnect
Unknown Device (DUD)
IEEE 802.1X user authentication of
switch management on switch Telnet
and console sessions; four access
privilege levels
Hierarchical management and pass-
word protection for management
interface
SNMP v3 encryption
SSH v2
6
SPECIFICATIONS

3Com®Switch 4500 10/100 Family
7
STACKING
Up to 384 10/100 front panel ports
Single IP address and management
interfaces for stack-wide control
MANAGEMENT
CLI via console or Telnet
Remote configuration via modem
dial-up
Embedded web management interface
System configuration with SNMP v1,
2and 3
Comprehensive statistics, including
ACL/QoS and IP interface
Remote Monitoring (RMON) groups
statistics, history, alarm and events
1-to-1 port mirroring
Detailed alarm and debug information
Supports ping and traceroute
Configuration file for backup and
restore; multiple configuration files
available
Queuing algorithms
DHCP Relay and UDP Helper
System file transfer mechanisms:
Xmodem, File Transfer Protocol (FTP),
Trivial File Transfer Protocol (TFTP)
3Com Management Applications:
• 3Com Enterprise Management Suite
for flexible, extensible management
in advanced enterprise IT environ-
ments
• 3Com Network Director for
comprehensive, turn-key network
management for the enterprise
• 3Com NetworkSupervisor for basic,
turn-key network management for
mid-market businesses
DIMENSIONS
Height: 43.6 mm (1.7 in or 1 RU)
Width: 440.0 mm (17.3 in)
Depth:
Non-PWR models: 270.0 mm (10.6 in)
PWR models: 427.0 mm (16.8 in)
Weight:
Non-PWR models: 3.3 kg (7.3 lb)
PWR models: 6.3 kg (13.9 lb)
POWER SUPPLY
AC Line Frequency: 50/60 Hz
Input Voltage: 90-240 VAC
Current Rating: 1.0A maximum
ENVIRONMENTAL REQUIREMENTS
Operating temperature: 0° to 40°C
(32°to 104°F)
Storage temperature: -10° to 70°C
(14° to 158°F)
Humidity (operating and storage):
10% to 95% non-condensing
Standard: EN 60068 (IEC 68)
RELIABILITY
(MTBF @ 25°C)
26-port: 47 years(411,000 hours)
26-port PWR: 25 years(221,000 hours)
50-port: 38 years(334,000 hours)
50-port PWR: 22 years (189,000 hours)
INDUSTRY STANDARDS
SUPPORTED
Ethernet Protocols
IEEE 802.1D (STP)
IEEE 802.1p (CoS)
IEEE 802.1Q (VLANs)
IEEE 802.1w (RSTP)
IEEE 802.1X (Security)
IEEE 802.3 (Ethernet)
IEEE 802.3ad (Link Aggregation)
IEEE 802.3ab (1000BASE-T)
IEEE 802.3af (Power over Ethernet)
IEEE 802.3i (10BASE-T)
IEEE 802.3u (Fast Ethernet)
IEEE 802.3x (Flow Control)
IEEE 802.3z (1000BASE-X)
Management, including MIBs
Supported
RFC 1213/2233 (MIB II)
RFC 1724 (RIP Version 2 MIB
Extension)
RFC 1907 (SNMP v2c, SMI v2 and
Revised MIB-II)
RFC 2021 (RMON II Probe Config MIB)
RFC 2233 (Interfaces MIB)
RFC 1493 (BridgeMIB)
RFC 2284 (EAP over LAN)
RFC 2571 (FrameWork)
RFC 2572-2575 (SNMP)
RFC 2665 (Pause control)
RFC 2667 (IP Tunnel MIB)
RFC 2668 (IEEE 802.3 MAU MIB)
RFC 2674 (VLAN MIB Extension)
RFC 2737 (Entity MIB)
RFC 2819 (RMON MIB)
EMISSIONS / AGENCY APPROVALS
CISPR 22 Class A
FCC Part 15 Class A
EN 55022 1998 Class A
EN 61000-3-2 2000, 61000-3-3
ICES-003 Class A
VCCI Class A
IMMUNITY
EN 55024
SAFETY AGENCY CERTIFICATIONS
UL 60950
IEC 60950-1
EN 60950-1
CAN/CSA-C22.2 No. 60950-1-03
WARRANTY
Limited LifetimeHardware Warranty
including power supply and fans.
Limited Software Warranty for 90
days. See www.3com.com/warranty
for details.
OTHER BENEFITS
Advance Hardware Replacement with
Next Business Day shipment in most
regions.
90 days of telephone technical support
Register products at
http://eSupport.3com.com
SPECIFICATIONS
(CONTINUED)

3Com®Switch 4500 10/100 Family
Visit www.3com.com for more information about 3Com secure converged network solutions.
3Com Corporation, Corporate Headquarters, 350 Campus Drive, Marlborough, MA 01752-3064
3Com is publiclytraded on NASDAQ under the symbol COMS.
Copyright © 2006 3Com Corporation. All rights reserved. 3Com, the 3Com logo, and NBX are registered trademarks, and Guardian and Express are service marks,
of 3Com Corporation. All other companyand product names may be trademarks of their respective companies. While every effort is made to ensure the information
given is accurate, 3Com does not accept liability for any errors or mistakes which may arise. All specifications are subject to change without notice. 400952-002 04/06
PRODUCT DESCRIPTION 3COM SKU
3Com Switch 4500 26-Port 3CR17561-91
3Com Switch 4500 50-Port 3CR17562-91
3Com Switch 4500 PWR 26-Port 3CR17571-91
3Com Switch 4500 PWR 50-Port 3CR17572-91
Transceivers
3Com 1000BASE-SX SFP 3CSFP91
3Com 1000BASE-LX SFP 3CSFP92
3Com 1000BASE-T SFP 3CSFP93
3Com 1000BASE-LH SFP 3CSFP97
DC Power System Components†
Powerware RPS Rackmount 3 Rectifier System with Load Distribution APS3-058
Powerware RPS Rackmount 3 Rectifier System with Load and
Battery Distribution APS3-059
Powerware RPS Desktop 3 Rectifier System with Load Distribution APS3-060
Powerware RPS Desktop 3 Rectifier System with Load and
Battery Distribution APS3-061
Powerware RPS Rackmount 6 Rectifier System with Load Distribution APS6-058
Powerware RPS Rackmount 6 Rectifier System with Load and
Battery Distribution APS6-059
Powerware RPS 1,500W Rectifier APR48
Powerware RPS 720W Rectifier APU48
3Com Global Services
3Com Network Health Check, Installation Services,
and Express Maintenance www.3com.com/services_quote
3Com University Courses www.3com.com/3comu
†Provides supplemental or redundant DC power for Switch 4500 PWR models. Available from
authorized 3Com resellers. See www.3com.com/rps for details.
ORDERING
INFORMATION
REDUNDANT POWER
SYSTEM
3Com has tested and qualified a Redundant Power System (RPS) solution
designed for the 3Com Switch 4500 by Eaton Powerware Corporation, a
leading global provider of power quality and management solutions.
The Powerware DC RPS systems come in either 3RU or 6RU form-factors,
delivering up to 9,000W of DC power to a stack of Switch 4500 PWR
units. The 3RU RPS unit can house up to three hot-swappable rectifiers
supplying up to 4,500W of power and supports up to eight separately-
fused DC outputs, while the 6RU unit can house up to six hot-swappable
rectifiers provisioning a total of 9,000W.
The RPS supports SNMP management, including MIB II, which is easily
accessible through the built-in RJ-45 or serial port. It is fully compatible
with the IEEE 802.3af Power over Ethernet standard, providing supple-
mental power for the 3Com Switch 4500 PWR models.
With this RPS, all 384 10/100 ports on a stack of eight Switch 4500
PWR 26-Port or 50-port units can receive the industry standard 15.4W
of power per port, with N+1 power redundancy.
The RPS ships with the power input fully configured and can be con-
nected to a UPS with battery backup. For more details, please refer to
www.3com.com/rps.