3Com 3CRBSG2093 - Baseline Plus Switch 2920 User manual

SWITCHING
DATA SHEET
OVERVIEW
The "smart" voice-ready 3Com®Baseline Plus Switch
2920 delivers ayer 2 enterprise-class Gigabit
switching solutions along with layer 3 static routes,
customized and priced for small and mid-sized
organizations.
These managed switches offer tremendous value to
small and medium businesses looking for a low cost
solution who need a level of control over their network
not offered by unmanaged switching products, without
sacrificing the advanced functionality normally found
on higher-end managed switching products.
KEY BENEFITS
LAYER 2 SWITCHING WITH ADVANCED FEATURES
The Baseline Plus Switch 2920 helps build a voice
ready network—with 3Com’s unique auto-voice V AN,
advanced voice QoS, SNMP-based management and
other features.
To ensure optimal use of the network bandwidth and
deliver maximum voice and data quality, traffic flow
can be directed according to the needs of the business
using Spanning Tree and Rapid Spanning Tree, traffic
prioritization, priority queuing and V ANs.
ink aggregation can be done via IEEE 802.3ad ACP
or manually, allowing ports to be grouped together to
form an ultra-high-bandwidth connection that greatly
expands bandwidth capacity to the network core or
other parts of the network.
ENTERPRISE-QUALITY SECURITY
Enterprise-quality security is provided with IEEE
802.1X network login and advanced Access Control
ists (AC s), which enable usage policies via the
switch at each point of access to the network. Time
based policies can also be configured on these
switches. All management communications are
encrypted with HTTPS.
NO SWITCH SETUP REQUIRED
Baseline Plus switches are operational straight out-of-
the-box; as long as default settings are acceptable,
there is no need to configure the switch. If desired, the
switch can be configured using a web browser,
console port, or SNMP management software.
ENHANCED INTUITIVE MANAGEMENT OPTIONS
For networks that require more control, the switch
web management interface provides an intuitive,
menu-driven process for even novice users to quickly
and confidently configure the switch during initial
setup and manage it during normal operation.
Graphical switch and port views provide a clear
understanding of switch status and configuration.
In addition, the web interface features individual port-
traffic monitoring (port mirroring) and MAC address
port mapping tables. A cable diagnostic tool lets users
troubleshoot basic connectivity problems via the web
management interface further simplifying network
installation.
3COM®BASELINE PLUS
SWITCH 2920
SWITCHING
DATA SHEET
3Com Baseline Plus Switch 2920
Enterprise-class, Gigabit switches for
small and medium businesses, voice ready
with advanced features for network control
and flexibility

IMC management platform. IMC is our next
generation fully integrated comprehensive
management platform. It delivers full FCAPS solution
as defined by ISO, among other features. IMC
management software can be used to map the
network topology, indicating what devices are
connected, and on what ports. Switch management
and software upgrades can be easily done. Other
SNMP-based management tools may also be used.
The Switch family also supports a compact Command
ine Interface (C I) that is accessed via the front panel
console port. Using the C I, major switch management
options can be quickly configured.
23COM®BASELINE PLUS SWITCH 2920
KEY BENEFITS ( ontinued)
FEATURE HIGHLIGHTS
FEATURE DESCRIPTION
Performance
V ANs Segment the network by grouping users based on their data or traffic exchange
requirements. This ensures optimal use of available bandwidth as traffic flow is directed
according to the needs of the business.
Advanced QoS and traffic shaping Traffic prioritization, using IEEE 802.1p Quality of Service (QoS) and Type of Service (TOS)
with Differentiated Services Code Point (DSCP), and ingress/egress rate shaping help
ensure that critical time-sensitive traffic like voice gets the priority needed for quality
communications.
ink aggregation (trunking) Group together any number of ports automatically using ink Aggregation Control
Protocol ( ACP), or manually, to form an ultra-high-bandwidth connection to the network
backbone; help prevent traffic bottlenecks.
Rapid Spanning Tree Protocol Improves network compatibility, scalability and availability.
(STP/RSTP/MSTP) support
IGMP snooping Multicast filtering optimizes network performance, instead of flooding traffic to all ports.
Unique voice features Automatic assignment of voice traffic to separate V ANs (“auto-voice V AN”), advanced
voice QoS, traffic shaping, multicast filtering and PoE support delivers the support
necessary for quality voice communications.
Fiber uplink Achieve greater distance connectivity using gigabit fiber uplinks.
PoE support (PWR model only) Provides power for IP phones, wireless AN access points, and other IEEE 802.3af-
compliant devices over the same cable used for data; lowers total cost of ownership since
there is no need to run additional electrical wiring.
Security
IEEE 802.1X network access control Provides standards-based security combined with local authentication.
Advanced Access Control ists (AC s) MAC- and IP-based AC s enable network traffic filtering and enhance network control.
Time based AC s allow for greater flexibiliy with managing network access.
Traffic monitoring (port mirroring) Administrators can examine suspect data streams received on any port by mirroring the
data stream to a monitoring port.
Confi uration and mana ement
Enhanced browser-based interface Graphical user interface allows even the most novice users to configure the switch during
initial setup and monitor it during normal operation.
SNMP support Switch can be managed with 3Com IMC, Network Supervisor, Network Director and other
SNMP-compatible tools.
PoE configuration (PWR model only) PoE power can be enabled or disabled per unit and per port; power can also be limited
per port.
Cable diagnostics Remotely detect copper cable issues using a browser-based tool.

33COM®BASELINE PLUS SWITCH 2920
BASELINE PLUS GIGABIT SWITCH 2900 USER INTERFACE
INTUITIVE BROWSER-BASED INTERFACE
With the switch web management interface, even novice users can quickly and confidently configure the switch
during initial setup and manage it during normal operation. Graphical switch and port views provide a clear
understanding of switch status and configuration.
BASELINE PLUS SWITCH 2920 IN A CONVERGED NETWORK
VOICE READY NETWORK
3Com Voice Ready Networks provide an innovative and
holistic approach to assessing, recommending and
implementing a converged network, solving the most
vexing challenges that confront IT managers as they
deploy Internet Protocol (IP) telephony systems. With
3Com Voice Ready Networks, organizations can optimize
network infrastructure for realtime voice and video
traffic, ensure secure communications and protect
business assets.
The Baseline Plus Switch 2920 is an integral
component of this approach, offering:
› Automatic assignment of voice traffic to separate
V ANs
› IEEE 802.1p prioritization and 802.1Q V ANS
› Advanced QoS and traffic shaping capabilities
› IEEE 802.1X authentication
Device summary information for the Switch 2920. PoE summary information for the Switch 2920.
3ComVCX®IPT/IPM
3ComNBXV3000
Ethernet/FastEthernet
GigabitEthernet
PoweroverEthernet
Internet
3ComBaseline
Switch2900
3ComBaseline
Switch2226Plus
3Com
®
Wireless11n
AccessPoints
3ComWireless
AccessPoints
Servers
PCs
PCs
PCs
PDA/
VoWiFiPhone
Wireless
Laptops
3Com3102B
Backlit IP
Phones
3C16476CS
BaselineSwitch2226Plus
BaselineSwitch2924-PWRPlus
3CBLSG24PWR
3ComOfficeConnect
SecureRouter
3Com®Wireless
LANManaged
AccessPoint

4 3COM®BASELINE PLUS SWITCH 2920
3Com Corporat on, Corporate Headquarters, 350 Campus Dr ve, Marlborough, MA 01752-3064
3Com s publ cly traded on NASDAQ under the symbol COMS.
Copyr ght © 2009 3Com and the 3Com logo are reg stered trademarks n var ous countr es worldw de of 3Com Corporat on. All other company and product names
may be trademarks of the r respect ve compan es. Wh le every effort s made to ensure the nformat on g ven s accurate, 3Com does not accept l ab l ty for any errors or
m stakes wh ch may ar se. All spec f cat ons are subject to change w thout not ce. 401206-001 07/09
Visit www.3com.com for more information about 3Com network solutions.
SPECIFICATIONS
PRODUCT DESCRIPTION 3COM SKU
3Com Baseline Plus Switch 2920 3CRBSG2093
TRANSCEIVERS
3Com 1000BASE-SX SFP 3CSFP91
3Com 1000BASE- X SFP 3CSFP92
ORDERING INFORMATION
CONNECTORS
Swit h 2920
16 10BASE-T/100BASE-X/
1000BASE-T
4 Gigabit SFP ports
PERFORMANCE
Swit h 2920
40 Gbps switching capacity, max.
29.6 Mpps forwarding rate, max.
Wirespeed performance
Store-and-forward switching
LAYER 2 SWITCHING
8,192 MAC addresses in address
table
256 port-based V ANs (IEEE 802.1Q)
IEEE 802.3ad ink Aggregation,
automated ( ACP) and manual
aggregation: number of ports/
2 trunks,
8 ports per trunk, max.
Auto-negotiation of port speed
and duplex
Auto-voice V AN for automatic ven-
dor-independent segregation and
prioritization of VoIP traffic
IEEE 802.3x flow control
(half- and full-duplex)
IEEE 802.1D Spanning Tree Protocol
(STP)
IEEE 802.1w Rapid Spanning Tree
Protocol (RSTP)
Internet Group Management
Protocol (IGMP) v1 and 2 on ayer 2
interfaces
Jumbo frames (up to 10K bytes)
Multicast filtering
Convergence
4 hardware queues per port, with
IEEE 802.1p Class of Service/Quality
of Service (CoS/QoS) on egress
Weighted Round Robin queuing
Traffic prioritization at ayer 2 using
802.1p QoS, and at ayer 3 using
Type of Service (TOS) with
Differentiated Services Code Point
(DSCP)
Ingress/egress rate shaping
Auto V AN assignment for voice traffic
determined by vendor OUI
CoS remarking for prioritization
of VoIP traffic
LAYER 3 SWITCHING
Static routes: 32
Virtual V AN interface: 8
DHCP relay
ARP entry: 256
SECURITY
IEEE 802.1X Network login
Access Control ists (AC s)
MAC-based ayer 2 filtering rules:
•source/destination address
•Ethertype
• CoS
• V AN
IP-based ayer 3 filtering rules:
• protocol
•source/destination address
• TCP/UDP port
•DSCP value
• IP precedence
Management communications are
encrypted via HTTPS
MANAGEMENT
Web-based configuration and
management
System configuration with SNMP
v1, v2 and v3
• Support Remote Monitoring
(RMON) alarm, event and history
recording
• Support system log
• Support hierarchical alarms
• Support NTP
Support power, fan, and temperature
alarms
Support for IMC our next generation
Network Management platform
C I via console
Management communications are
encrypted via HTTPS
LED INDICATORS
Module active, power, network traf-
fic/duplex mode, link status/speed
AT-A-GLANCE TRAFFIC
MONITORING
Ports: active, enabled, disabled
Modules: present, active
POWER SUPPLY
Swit h 2920
Current rating: 0.8A
Voltage:100V-240V AC, 50/60Hz
Power consumption max: 22.4W
Power dissipation: 70.33 BTU/hr
max
Power inlet: IEC 320
DIMENSIONS
Swit h 2920
Height: 4.36cm (1.72in)
Width: 44cm (17.32in)
Depth: 16cm (6.3in)
Weight: 3kg (6.61lb)
ENVIRONMENTAL
REQUIREMENTS
Operating temperature: 0° to 40°C
(32° to 104°F)
Operating humidity: 10 to 95%
(non-condensing)
Standard: EN 60068 (IEC 68)
REGULATORY AND AGENCY
APPROVALS
Safety: U 60950-1, EN 60950-1,
CSA 22.2 60950-1, IEC 60950-1
Emissions: EN 55022 Class A,
EN 61000-3-2, EN 61000-3-3,
FCC Part 15 Subpart B Class A,
CISPR22 Class A, ICES-003 Class A,
VCCI Class A
Immunity: EN 55024
IEEE STANDARDS SUPPORTED
IEEE 802.1d Spanning Tree
IEEE 802.1p Priority Tags
IEEE 802.1Q V ANs
IEEE 802.1X Port Security
IEEE 802.1w Rapid Spanning Tree
IEEE 802.3 Ethernet
IEEE 802.3ab Gigabit Ethernet
IEEE 802.3ad ink Aggregation
IEEE 802.3af Power over Ethernet
(Switch 2924-PWR only)
IEEE 802.3u Fast Ethernet
IEEE 802.3x Flow Control
IEEE 802.3z Gigabit Ethernet
ISO 8802-3
PACKAGE CONTENTS
Switch unit, power cord, self-adhe-
sive rubber pads, console cable,
rack-mount kit, product CD, war-
ranty and safety information flyer
WARRANTY AND OTHER
SERVICES
Three Year imited Hardware
Warranty
imited 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.