3Com Unified Gigabit Switch User manual

Unified architecture
delivers a single oint
of management for
secure control of a
voice-ready wired and
wireless network, with
24 orts of Layer 2
Gigabit PoE switching
and control of u to
24 wireless access
oints
DATA SHEET
OVERVIEW
The 3Com®Unified Gigabit Switch is the industry’s first truly integrated
and cost-effective Layer 2 Gigabit Power over Ethernet (PoE) switch that
provides centralized management of both a wired and wireless network.
This unified switch offers small-to-medium-sized businesses with 20 to
250 users a one-box solution that securely and efficiently supports
mobile workers and fixed LAN connections.
KEY BENEFITS
CENTRALIZES MANAGEMENT OF WIRED AND WIRELESS IN
ONE PLATFORM
The entire wired and wireless network can be managed through a single
web management interface, with support for automatic discovery and
configuration of access points (APs).
OFFERS COST-EFFECTIVE LAYER 2 SWITCHING FOR BOTH
WIRED AND WIRELESS NETWORKING
No need to add specialized wireless switches or controllers—at extra
cost—to the network, as the Unified Gigabit Switch controls both types
of networks, autosensing the PoE power requirements of the device
connected to the port.
This switch ships standard with full support for wireless access points
and PoE on all 24 ports. There are no licensing fees or port fees ever
required to utilize the full functionality.
DELIVERS GIGABIT SPEEDS
For top performance, this unified switch delivers 24 ports of wirespeed
Gigabit throughput.
PROVIDES POWER OVER ETHERNET
The Unified Gigabit Switch provides inline power to attached devices—
access points, Voice over IP (VoIP) phones, IP security cameras and
more—via industry-standard IEEE 802.3af Power over Ethernet over a
single Ethernet cable, resulting in significant cabling deployment cost
savings. All 24 ports are supplied with full PoE.
PRIORITIZES VOICE TRAFFIC A TOMATICALLY
Voice traffic from 3Com and other IP telephony systems can be auto-
matically assigned to a voice-dedicated VLAN, helping to optimize this
delay-sensitive traffic. Support for Wi-Fi®Multimedia (WMM®) assures
quality of service for wireless VoIP traffic.
3Com®Unified Gigabit Switch
3Com Unified Gigabit Switch

3COM®UNIFIED GIGABIT SWITCH
2
KEY BENEFITS
(CONTIN ED)
SEC RES THE NETWORK WITH ADVANCED, STANDARDS-BASED PROTECTION
The Unified Switch provides enhanced security features to ensure your wired and wireless data is protected.
Support for WEP, WPA™and WPA2™AES encryption helps guarantee the privacy of your wireless network
data. IEEE 802.1X authentication provides secure wired and wireless network logins.
EFFORTLESSLY ROAM BETWEEN ACCESS POINTS
The architecture of the Unified Switch brings AP configurations and support directly into the switch,
allowing users to move between access points with seamless mobility and no loss of connectivity. Wireless
devices retain their VLAN membership and IP address, providing uninterrupted communication.
FEAT RES NIFIED ARCHITECT RE
Central management interface›Single IP address and web GUI management and configuration for all wired
Ethernet devices and wireless access points and users reduces management overhead and helps lower total cost
of ownership (TCO).
Managed access point control›Centrally maintained access point settings eliminate the need to individually
configure each device’s SSIDs, V ANs, access control lists and security settings.
PoE on every port›Tolly “First & Foremost” winner: full 15.4 watts of 802.3af compliant power on every port
assures that every connection can provision every type of Ethernet standard device—3Com IntelliJack®switch,
cameras, access points, VoIP phones and more.
10/100/1000 auto-detect ports›Switch design supports legacy Ethernet alongside newer gigabit Ethernet devices.
VoWiFi ready›Provides ability for voice over W AN using real-time peer-to-peer communications over IEEE
802.11 infrastructure for cost savings.
CENTRALIZED WIRELESS AND RF MANAGEMENT
Centralized wireless policy›The 3Com Unified Gigabit Switch supports up to 24 access points deployed using
same or different policies (security, V AN, QoS ) for employees and guest visitors.
Automatic discovery›Automatic discovery and configuration of supported access points minimizes the installation
time and configuration of the wireless network.
Fast roaming›Quick handoff of user information and authorizations enables seamless roaming with session
integrity and mobility robust enough to support voice traffic.
Load balancing›System adjusts user-to-AP ratio to maximize W AN user throughput and performance.
SEC RITY
IEEE 802.1X authentication›Centralized authentication control and management of all network users helps
ensure that only authorized users access the network.
Enterprise-class encryption›Wi-Fi CERTIFIED™radios using WPA and WPA2, AES, TKIP and WEP encryption
help protect and secure all wireless communications.
Rogue AP detection and mitigation (IDS)›802.11 radio frequency (RF) scans identify unauthorized access;
the switch can then take mitigation actions.
Hierarchical and secure management›Delivers tiered management access to the unified switch via HTTPS,
HTTP, Telnet C I, SSH C I and SNMP v1, 2c and 3.
Extensive VLAN and ACL capabilities›Provides scalable security and network design, while maintaining strict
security and access control throughout the network.
LAYER 2 SWITCHING FOR WIRED AND WIRELESS NETWORKING
Device autosensing›The Unified Gigabit Switch autosenses the device—wired or wireless—connected to the port.
Gigabit speed›This switch delivers non-blocking 10/100/1000 wirespeed Gigabit throughput to handle bandwidth-
hungry and speed-sensitive applications.
Traffic prioritization›IEEE 802.1p Class of Service (CoS) and automatic assignment of VoIP traffic to dedicated
V ANs help ensure that critical time-sensitive traffic gets the priority needed for quality communications.

3COM®UNIFIED GIGABIT SWITCH
3
FIXED AND MOBILE ACCESS FOR SERS, VOICE-READY FOR THE F T RE
3ComRouter
3ComNBX®V3000
FutureupgradetoVoIP
3ComNBXV3000
Ethernet/FastEthernet
GigabitEthernet
PoweroverEthernet
Internet
3ComUnified
GigabitPoESwitch
3Com
®
Wireless7760
AccessPoints
3ComWireless8760
AccessPoints
Servers
PCs
PCs
PCs
PDA/
VoWiFi Phone
Wireless
Laptops
3Com3102
VoIPPhones
3CRUS2475
UifidGibitWilPESwith24
The 3Com Unified Gigabit Switch provides:
• Converged authentication for wired and wireless users
• Unified single IP address management interface for all AN and W AN devices
• Centralized access point configuration and coordination
• Centrally managed PoE source for access points, IP phones and 802.3af devices
• Investment protection—ready for future implementation of Gigabit, wireless mobility, PoE and VoIP
VOICE READY NETWORK The Unified Gigabit Switch is ready for voice over IP, offering:
›Automatic assignment of voice traffic to separate VLANs
›IEEE 802.1p prioritization and 802.1Q VLANS
›Centralized IEEE 802.11 AP management
›WPA/WPA2 and WEP wireless security
›IEEE 802.1X authentication
›Four dual-personality Gigabit SFP ports
›Seamless AP-to-AP wireless roaming

CONNECTORS
24 total available ports, comprised of:
20 auto-negotiating 10BASE-T/
100BASE-TX/1000BASE-T ports
configured as auto MDI/MDIX
4 dual-personality Gigabit port pairs,
configurable as 10BASE-T/100BASE-TX/
1000BASE-T or SFP
PERFORMANCE
48 Gbps, max.
Wirespeed performance across ports
LAYER 2 SWITCHING
8,196 MAC addresses in address table
256 port-based VLANs (IEEE 802.1Q);
max.
IEEE 802.3ad Link Aggregation, Link
Aggregation Control Protocol (LACP)
Auto-negotiation of port speed and
duplex
IEEE 802.3x full-duplex flow control
IEEE 802.1D Spanning Tree Protocol
(STP)
IEEE 802.1w Rapid Spanning Tree
Protocol (RSTP)
IEEE 802.1s Multiple Spanning Tree
Protocol (MSTP)
Internet Group Management Protocol
(IGMP) snooping on Layer 1 and 2
interfaces
CONVERGENCE
4 hardware queues per port
IEEE 802.1p Class of Service/Quality
of Service (CoS/QoS)
Auto-voice VLAN for automatic
vendor-independent segregation
and prioritization of VoIP traffic
Wi-Fi Multimedia (WMM)
256 Access Control Lists (ACLs)
4 BSSIDs per radio
Diffserv Codepoint (DSCP)
SEC RITY
Rogue AP detection and mitigation
IEEE 802.1X network login user
authentication
EAP over LAN (EAPoL) transport with
PEAP and EAP-TLS authentication
RADIUS server authentication
(RFC 2618)
Local MAC authentication
Automatic VLAN assignment via
RADIUS server
IEEE 802.1X user authentication of
switch management on switch Telnet
and console sessions; multiple access
privilege levels
Hierarchical management and password
protection for management interface
WIRELESS ENCRYPTION
WPA Personal and Enterprise
WPA 2 Personal and Enterprise
AES (CCMP): 128-bit (FIPS-197)
WEP 40/64- and 104/128-bit
TKIP: RC4 40-bit
SSL and TLS: RC4 128-bit and RSA
1024- and 2048-bit
EAP-TLS, EAP-TTLS/MSCHAPv2,
PEAPv0/EAP-MSCHAPv2, EAP-SIM
POWER OVER ETHERNET
IEEE 802.3af
15.4W per port, max.
ACCESS POINT S PPORT
Ships with support for up to 24 of the
below access points:
• 3Com Wireless 7760 11a/b/g PoE
Access Point (3CRWE776075)
• 3Com Wireless 8760 Dual-Radio
11a/b/g PoE Access Point
(3CRWE876075)
Max. 30 users per AP radio;
250 wireless clients max. per switch
ROAMING S PPORT
Inter-AP roaming
Fast roaming
Dynamic load balancing
MANAGEMENT
Embedded GUI web management
interface
CLI via console or Telnet
System configuration with SNMP v1,
2c and 3 encryption
SSH v2 encryption
Configuration file for backup and
restore; dual configuration files
available
Dual firmware images
Remote Monitoring (RMON) groups:
statistics, history, alarm and events
Port mirroring/monitoring
System upgrade via HTTP and
TFTP (RFC1350)
Syslog
SNTP
RADIO RESO RCE MANAGEMENT
Automatic channel assignment
Dynamic load balancing
Bandwidth management (WMM)
DIMENSIONS
Height: 4.4 cm (1.7 in or 1 RU)
Width: 44.0 cm (17.3 in)
Depth: 41.5 cm (16.3 in)
Weight: 5.9 kg (13.0 lb)
POWER S PPLY
Input voltage: 100-240 VAC, 50/60 Hz
Current rating: 8A, max.
Power consumption: 465W, max.
Power dissipation: 207 BTU/hr, max.
ENVIRONMENTAL REQ IREMENTS
Operating temperature: 0° to 40°C
(32° to 104°F)
Storage temperature: -40° to 70°C
(-40° to 158°F)
Humidity (operating and storage):
10% to 95% non-condensing
Standard: EN 60068 (IEC 68)
RELIABILITY
MTBF: 36 years (315,000 hours)
LED INDICATORS
Port speed or PoE status, SFP module
presence, fan, system
IEEE STANDARDS S PPORTED
IEEE 802.1d Spanning Tree
IEEE 802.1p Priority Tags
IEEE 802.1Q VLANs
IEEE 802.1s Multiple Spanning Tree
IEEE 802.1X RADIUS
IEEE 802.1w Rapid Spanning Tree
IEEE 802.3 Ethernet
IEEE 802.3ab Gigabit Ethernet
IEEE 802.3ac VLAN tag
IEEE 802.3ad Link Aggregation
IEEE 802.3af Power over Ethernet
IEEE 802.3u Fast Ethernet
IEEE 802.3x Flow Control
IEEE 802.3z Gigabit Ethernet
IEEE 802.11a 54 Mbps, 5 GHz
IEEE 802.11b 5.5 and 11 Mbps, 2.4 GHz
IEEE 802.11d International roaming
extensions
IEEE 802.11g 54 Mbps, 2.4 GHz
IEEE 802.11h Spectrum managed 802.11a
IEEE 802.11i Enhanced security
EMISSIONS / AGENCY APPROVALS
EN 55022 Class A
FCC Part 15 Subpart B Class A
ICES-003 Class A
VCCI Class A
CISPR 22 Class A
EN 61000-3-2, 61000-3-3
IMM NITY
EN 55024, 60601-1-2
SAFETY AGENCY CERTIFICATIONS
UL 60950-1
EN 60950-1
CSA 2.22 # 60950-1
IEC 60950-1
EU RoHS Compliant
PACKAGE CONTENTS
Switch unit, power cord, self-adhesive
rubber pads, rack-mount kit, Quick
Start Guide, warranty flyer
SYSTEM PREREQ ISITES
Windows PC with Internet Explorer
version 6.0 or greater required for GUI
web management
DHCP server
WARRANTY AND OTHER SERVICES
Three-year Hardware Warranty,
including fans and power supply
Limited Software Warranty for 90 days
Advance Hardware Replacement
with Next Business Day shipment in
most regions
90 days of telephone technical support
Refer to www.3com.com/warranty
for details.
3COM®UNIFIED GIGABIT SWITCH
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 publicly traded on NASDAQ under the symbol COMS.
Copyright © 2008 3Com Corporation. All rights reserved. 3Com, the 3Com logo, Intelli ack, and NBX are registered trademarks, and Express is a service mark, of
3Com Corporation. Wi-Fi and WMM are registered trademarks of the Wi-Fi Alliance; Wi-Fi CERTIFIED, WPA, and WPA2 are trademarks of the Wi-Fi Alliance. All
other company and 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. 401001-005 02/08
PROD CT DESCRIPTION 3COM SK
3Com Unified Gigabit Wired and Wireless PoE Switch 24-Port 3CRUS2475
Transceivers
3Com 1000BASE-SX SFP 3CSFP91
3Com 1000BASE- X SFP 3CSFP92
Su orted Access Points
3Com Wireless 7760 11a/b/g PoE Access Point 3CRWE776075
3Com Wireless 8760 Dual-Radio 11a/b/g PoE Access Point 3CRWE876075
3Com Global Services
3Com Wireless AN Site Survey, Network Health Check,
Installation Services and ExpressSM Maintenance www.3com.com/services_quote
3Com University Courses www.3com.com/3comu
ORDERING
INFORMATION
SPECIFICATIONS