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3Com 3C16863A Datasheet

Made by: 3Com
Type: Datasheet
Category: Switch
Pages: 12
Size: 1.21 MB

 

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A versatile, multilayer

modular switching

platform for mid-range

Enterprise applications,

delivering highly

secure, resilient access

to business resources.

DATA SHEET

OVERVIEW

The 3Com

®

Switch 7750 Family of modular LAN switches provides 

intelligent, multilayer switching and routing for enterprises and mid-
market businesses, enabling end-to-end network connectivity with
advanced traffic management. Providing unparalleled investment 
protection with high scalability and performance, advanced security
and granular network control, the Switch 7750 Family delivers wirespeed
Fast Ethernet and Gigabit Ethernet connectivity with 10-Gigabit Ethernet
uplinks in a highly flexible and resilient modular platform.

The Switch 7750 Family is perfectly suited to networking environments
requiring non-stop access to critical business applications. Three chassis
models are available, providing a range of port densities and media 
flexibility:

3Com Switch 7758—8-slot chassis with two slots for switch fabrics
(primary and redundant) and six slots supporting any combination 
of switching I/O modules, up to 292 10/100/1000 or 288 10/100 ports

3Com Switch 7757—7-slot chassis with one slot for the switch fabric
and six slots supporting any combination of switching I/O modules,
up to 292 10/100/1000 or 288 10/100 ports

3Com Switch 7754—4-slot chassis with one slot for the switch fabric
and three slots supporting any combination of switching I/O modules,
up to 148 10/100/1000 or 144 10/100 ports.

All chassis models share the same high-performance, scalable modular
architecture—scaling up to 240 Gigabits per second (Gbps) system 
bandwidth and 179 Million packets per second (Mpps) forwarding 
performance—for maximum long term investment protection.

3Com

®

Switch 7750 Family

 


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3COM

®

SWITCH 7750 FAMILY

2

KEY BENEFITS

INTELLIGENT ENTERPRISE INFRASTRUCTURE

Enterprise network infrastructure is evolving dramatically, from the
core to the edge of the network, and the 3Com Switch 7750 is designed
to meet the greater demands being placed on the entire network system
to deliver:

Highly intelligent, non-stop transport of data and access to information
resources

Guaranteed quality of service (QoS) for mission critical business 
applications, including Voice over IP (VoIP), storage and video

Comprehensive security for network access control, encryption and
protection of corporate resources

Unprecedented levels of management visibility and granular control

An open, standards-based architecture to enable seamless growth and
future investment without proprietary lock-ins

RESILIENT ARCHITECTURE FOR BUSINESS CONTINUITY

Featuring a resilient and flexible modular architecture, the Switch 7750
Family enhances business continuity by ensuring availability of network
resources and critical business applications—including data, voice and
video. All critical system components including power supplies, cooling
fans and switch fabrics are redundant* and hot-swappable, minimizing
the business impact in the unlikely event a component should fail.

Changes in network topology due to device or link failures can lead to
disruption of service for critical business applications. Rapid recovery
from such topology changes is ensured with features such as Multiple
Spanning Tree Protocol (MSTP), Rapid Spanning Tree Protocol (RSTP),
Open Shortest Path First (OSPF) routing and Virtual Router Redundancy
Protocol (VRRP).

APPLICATION CONVERGENCE: QOS AND POWER OVER ETHERNET

Real-time applications such as VoIP demand high QoS and differentiated
service levels to function properly. Based on the same proven operating
system as the flagship 3Com Switch 8800 Family, the 3Com Switch 7750
delivers robust QoS and advanced traffic management features to ensure
critical applications are prioritized and serviced as the needs of the
organization dictate. 

Additionally, the Switch 7750 supports industry-standard IEEE 802.3af
Power over Ethernet (PoE) to provide both electrical power and network
connectivity to PoE-capable devices, such as IP telephones and wireless
access points, making the Switch 7750 ideal for large-scale enterprise
edge deployment. 

PoE simplifies network deployment by eliminating the need for separate
data and power infrastructures, significantly reducing installation and
maintenance costs. PoE also provides greater flexibility for moves, adds
and changes on the network. Powered network devices can be
deployed or relocated anywhere an Ethernet connection is available
without requiring a dedicated power outlet.

* Redundant fabric available on Switch 7758 only.

 


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3COM

®

SWITCH 7750 FAMILY

ENTERPRISE-WIDE SECURITY

Security is paramount in today’s enterprise and as dependency on 
information technology continues to rise, so does the need for highly
secure IT systems and infrastructures. The 3Com Switch 7750 features
advanced security capabilities, including user and device authentication,
policy-based access controls, encrypted system management access and
quarantine enforcement for containment of vulnerabilities and deliberate
attacks.

The Switch 7750 ensures secure network access using standard IEEE
802.1X network login with RADIUS Authenticated Device Access (RADA).
RADIUS support enables user authentication, while the switch is also able
to authenticate attached devices (printers, for example) via their MAC
address for an additional level of endpoint security. Port- and VLAN-based
Access Control Lists (ACLs) and dynamic traffic filtering capabilities can be
deployed to further control access to network resources. 

Additional security measures—Secure Shell version 2 (SSH v2) and
SNMP v3 with authentication and encryption of network management
traffic—are enforced when accessing switch management utilities.

The Switch 7750 Family functions as an integral part of the 3Com
Quarantine Protection solution to automate containment of security
threats on the enterprise network. Quarantine Protection integrates the
industry-leading TippingPoint

Intrusion Prevention System with

switch-based endpoint enforcement at the network edge.

SCALABLE PERFORMANCE

With up to 240 Gbps of system bandwidth and wirespeed switching
capacity, the Switch 7750 provides exceptional scalability for Enterprise
distribution and edge environments and for core networks of mid-market
businesses. Connectivity and media options can be tailored to each 
environment with a wide selection of switching modules, scaling up 
to 292 Gigabit ports or 288 Fast Ethernet ports in a single chassis. 
10-Gigabit Ethernet uplink modules allow ultra-high-bandwidth links
for inter-switch backbone connections The flexible design of the Switch
7750 allows for any combination of switching modules to be used in a
single system, allowing easy expansion of network capacity with a
wide selection of standard interface types for twisted pair (copper) 
and fiber media.

A 96 Gbps switching fabric provides high-performance switching,
routing and centralized management in the Switch 7750. In addition,
individual switching I/O modules provide on-board local switching,
maximizing system performance and application response times, for 
an aggregate Layer 2/3 switching capacity of up to 179 Mpps.

Hardware-based routing of multicast traffic enhances performance and
reduces latency (delay) for multicast applications, enhancing performance
for real-time applications like streaming audio and video.

Standards-based link aggregation (via IEEE 802.3ad) allows scalable,
high-bandwidth interconnectivity between network devices, with the
ability to aggregate multiple Gigabit links together as a single trunk.
Link aggregation of Gigabit ports is supported across fabric modules
within the Switch 7758 chassis (when configured with redundant fabrics)
for enhanced network availability.

3

KEY BENEFITS

(CONTINUED)

 


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3COM

®

SWITCH 7750 FAMILY

4

KEY BENEFITS

(CONTINUED)

PRIORITIZATION AND TRAFFIC MANAGEMENT

Eight priority queues per port enable standard IEEE 802.1p Class of
Service/Quality of Service (CoS/QoS). Protocol filtering and bandwidth
rate limiting capabilities allow the Switch 7750 to enforce port-based
controls for efficient use of network resources and prioritization of
business-critical or time-sensitive applications, including Voice over IP.

For example, protocols associated with key business applications can
receive prioritized, high-bandwidth service; while other protocols that
may be associated with non-critical (or even undesirable) applications 
can receive lower priority and/or bandwidth resources, or be blocked
completely.

STANDARDS BASED INTEROPERABILITY AND INVESTMENT
PROTECTION

Enterprises today rely on open standards-based technology solutions to
enable interoperability among new and existing systems and to ensure that
today’s investments will continue to provide value well into the future
without being locked-in to a particular vendor’s products or technology.

3Com has designed the Switch 7750 with an open architecture, facilitating
seamless growth and migration based on widely accepted international
standards, free from costly lock-ins and the restrictions of proprietary
approaches.

3Com’s standards-based design philosophy—inherent in the Switch 7750
and all other 3Com products—provides investment protection as well as
the flexibility to deploy best-in-class technology solutions which leverage
industry standards.

ENTERPRISE CLASS MANAGEMENT AND CONTROL

The Switch 7750 provides independent paths for data and management. A
dedicated data channel provides high-speed data switching and packet
forwarding, while a separate management channel provides control,
monitoring, route learning and distribution.

Comprehensive management capabilities provide enterprise-wide 
visibility and control to IT staff for configuration, network monitoring
and advanced troubleshooting.

Management features are accessible via an intuitive command line
interface (CLI), as well as by SNMP, with hierarchical access controls
and password protection for secure management access. Additional
management security is provided through user authentication and data
encryption capabilities of SNMP v3 and SSH v2, further helping prevent
unauthorized access or snooping of management traffic.

 


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3COM

®

SWITCH 7750 FAMILY

Highly flexible, resilient architecture for end-to-end enterprise deployment
in the core, data center, distribution layer and network edge.

High-density multilayer switching for Fast Ethernet, Gigabit Ethernet and
10-Gigabit Ethernet.

Up to 288 Fast Ethernet or 292 Gigabit Ethernet ports per system.

10-Gigabit uplinks for ultra-high-speed backbone connectivity.

Up to 240 Gbps system bandwidth; up to 179 Mpps switching capacity.

Advanced traffic prioritization and routing of multicast traffic in hardware
for convergent applications including VoIP, streaming audio and video.

Virtually non-stop operation with redundant power supplies, fans and
switch fabrics*, as well as hot-swappable switching I/O modules.

Robust network access control and enterprise-wide security via standards-
based IEEE 802.1X, RADIUS Authenticated Device Access (RADA), and
advanced Access Control Lists; authentication and encryption of manage-
ment traffic via SSH v2 and SNMP v3.

Industry-standard PoE to power IP phones, wireless access points and
other devices; reduces implementation and maintenance costs.

Unified management and administration with a common operating system
and centralized control available via 3Com Enterprise Management Suite.

Granular QoS and traffic management for enhanced availability and 
performance of critical business applications.

Extensive L2/3/4 switching and routing capability, including advanced
features like IS-IS

and BGP-4

, applicable in very large enterprises. IPX

routing for enhanced support of legacy environments.

* Redundant fabric available on Switch 7758 only.

Available in the 3Com Advanced Feature Software, at additional cost.

5

FEATURES

Switch 7758

Switch 7757

Switch 7754

Chassis slots

Available slots (switch fabric and I/O)

8

7

4

Performance

Switching capacity

179 Mpps

179 Mpps

89 Mpps

Fabric bandwidth

240 Gbps

240 Gbps

120 Gbps

Total port capacity

10-Gigabit Ethernet (XENPAK)

6

6

3

Gigabit Ethernet (10/100/1000)

292

292

148

Gigabit Ethernet PoE

§

(10/100/1000)

288

288

144

Gigabit Ethernet (SFP)

124

124

64

Fast Ethernet (10/100)

288

288

144

Fast Ethernet PoE

§

(10/100)

288

288

144

Fast Ethernet (100BASE-FX SFP)

288

288

144

§

Power over Ethernet (PoE) using 48-port 10/100/1000 Ethernet module; requires optional PoE components to be installed

AGGREGATE SYSTEM CAPACITIES

 


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3COM

®

SWITCH 7750 FAMILY

6

SAMPLE CONFIGURATION:
DISTRIBUTION/EDGE DEPLOYMENT OF SWITCH 7750 FAMILY IN ENTERPRISE CAMPUS NETWORK

          Edge 2

          

Edge1

Distributi

on 2

Distributi

on 1

Core

Data Center

LAN C

lients

Wirel

ess PC

3Com Wir

eles

s

LAN Con

troll

er WX4400

3CRW

X4400

95A  

Wirele

ss LA

N Con

trolle

r WX4

400

3Com Wir

eless

 LAN

Swit

ch Manager 

Wirel

ess L

AN

Switc

h Ma

nage

IP Phones

Wire

less

 LAN 

 Manage

Acce

ss P

oint AP275

0

3Com® Wir

eles

s LAN Mana

ged 

Acce

ss P

oint AP3750

PDA 

VoWiFi 

Phone

Wirel

ess PC

PDA 

VoWiFi 

Phone

3Com Swit

ch 7758

3Com Swit

ch 5500G-EI

stack

3CR171

72-91   

    Supe

rStack 4

 Switch

 5500-E

I PWR 5

2-Port

3CR171

72-91   

    Supe

rStack 4

 Switch

 5500-E

I PWR 5

2-Port

3CR171

72-91   

    Supe

rStack 4

 Switch

 5500-E

I PWR 5

2-Port

3CR171

72-91   

    Supe

rStack 4

 Switch

 5500-E

I PWR 5

2-Port

3CR171

72-91   

    Supe

rStack 4

 Switch

 5500-E

I PWR 5

2-Port

3CR171

72-91   

    Supe

rStack 4

 Switch 

5500-EI

 PWR 52

-Port

3CR171

72-91   

    Supe

rStack 4

 Switch

 5500-E

I PWR 5

2-Port

3CR171

72-91   

    Supe

rStack 4

 Switch 

5500-EI

 PWR 52

-Port

Swit

ch 8814

Swit

ch 880

7

3Com V

CX™

 

V700

0 Serv

er

3Com Rout

er 6080

3Com Ent

erprise

Manage

ment S

ystem

TippingP

oint™

5000E

WAN / Internet

Serv

ers

Ethernet/Fast Ethernet
Gigabit Ethernet

10-Gigabit Ethernet

Power over Ethernet (PoE)

Link Aggregation (LAG)

 


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3COM

®

SWITCH 7750 FAMILY

7

SAMPLE CONFIGURATION:
CORE-TO-EDGE DEPLOYMENT OF SWITCH 7750 FAMILY IN MID-SIZE ENTERPRISE NETWORK

        

  

Edge1

          

Edge2

Core

Data Center

LAN Clients

Wirel

ess PCs

IP Phones

3Com Wir

eles

s Ac

cess

 Point 8250

PDA / 

VoWiFi 

Phone

3Com

 NBX V

3000

3Com

 NBX V

3000

LAN Clients

Wirel

ess PCs

IP Phones

3Com Wir

eles

s Ac

cess

 Point 8250

PDA / 

VoWiFi 

Phone

3Com Swit

ch 

5500

G-EI s

tack

3CR17

172-9

1      

 Supe

rStack

 4 Sw

itch 5

500-E

I PWR

 52-P

ort

3CR17

172-9

1      

 Supe

rStack

 4 Sw

itch 5

500-E

I PWR

 52-P

ort

3CR17

172-9

1      

 Supe

rStack

 4 Sw

itch 5

500-E

I PWR

 52-P

ort

3Com® Swit

ch 7754

3Com Swit

ch 7758

3Com

 Netw

ork D

irect

or

TippingP

oint™ 200E

3Com Rout

er 5232

3Com NBX

 V3000

3Com

 NBX V

3000

3Com

 NBX V

3000

NBX V

3000 

BRI

Serv

ers

Ethernet/Fast Ethernet

Gigabit Ethernet

Power over Ethernet (PoE)

Link Aggregation (LAG)

WAN / Internet

 


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3COM

®

SWITCH 7750 FAMILY

8

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 engineer(s) 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 Guardian

SM

Maintenance Service This service provides comprehensive on-site support and includes 

advance hardware replacement, telephone technical support and 
software upgrades

3Com Express

SM

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

For additional information, please visit 

www.3com.com/services

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, local 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 remain strong and competitive.

SERVICE AND SUPPORT

 


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3COM

®

SWITCH 7750 FAMILY

9

All information in this section is 
relevant to all current members of 
the 3Com Switch 7750 Family, unless
stated otherwise.

CAPACITIES AND PERFORMANCE
3Com Switch 7758 8-slot:
2 switch fabric and 6 payload slots
Backplane: 96 Gbps
Max. system bandwidth: 240 Gbps 
(full duplex)
Max. aggregate system throughput: 
179 Mpps

3Com Switch 7757 7-slot:
1 switch fabric and 6 payload slots
Backplane: 96 Gbps
Max. system bandwidth: 240 Gbps 
(full duplex)
Max. aggregate system throughput: 
179 Mpps

3Com Switch 7754 4-slot:
1 switch fabric and 3 payload slots
Backplane: 48 Gbps
Max. system bandwidth: 120 Gbps 
(full duplex)
Max. aggregate system throughput: 
89 Mpps

All models:
Layer 3: 1,024 IP interfaces, IP routing 
at 48 Mpps, 64k IP routing entries

LAYER 2 SWITCHING
16K MAC addresses
5K static MAC addresses
Modules forwarding (delay <10µs)
9K jumbo frame support
4,096 VLANs (IEEE 802.1Q)
Port-based (IEEE 802.1Q) and
protocol-based (IEEE 802.1v) VLANS
GARP VLAN Registration Protocol
(GVRP)
IP v6 tunneling using protocol-based
VLANs
IEEE 802.3ad Link Aggregation
Control Protocol (LACP)
Supports maximum of 64 link 
aggregation groups
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
IEEE 802.1D Spanning Tree Protocol
(STP)
IEEE 802.1w Rapid Spanning Tree
Protocol (RSTP)
IEEE 802.1s Multiple Spanning Tree
Protocol instances (MSTP)
Bridge Protocol Data Unit (BPDU) 
protection

LAYER 3 SWITCHING
Hardware based routing
64K dynamic routes
5K static routes
8K dynamic/static Address Resolution
Protocol (ARP) entries 
1,024 IP interfaces 
Routing Information Protocol (RIP), 
v1 and v2; supports Split Horizons
Open Shortest Path First (OSPF), 
v1 and v2; 50 areas
Equal Cost Multi-Path (ECMP) Routing
Border Gateway Protocol 4 (BGP4)

† 

Intra-Domain Intermediate System to
Intermediate System (IS-IS)

Hardware-based multicast routing for
wirespeed performance
1K multicast routes
Multicast Source Discovery Protocol
(MSDP)
Multicast rate limiting
Internet Group Management Protocol
(IGMP) snooping on Layer 2 interfaces
IGMP v1 and v2
GARP Multicast Registration Protocol
(GMRP)
Protocol Independent Multicast-Dense
Mode (PIM-DM)
Protocol Independent Multicast-
Sparse Mode (PIM-SM)
Multicast VLAN
Dynamic Host Configuration Protocol
relay (DHCP relay)
DHCP client and server
TCP/IP protocol stack; ARP
Virtual Router Redundancy Protocol
(VRRP)

CONVERGENCE
8 hardware queues per port 
Flow-based QoS profiles
Ingress and egress
Remarking of packets based on
priority:
• Auto identification and classification

of IP telephones

• Selectable prioritization
• Diffserv Code Point (DSCP)
• Type of Service (ToS)
• IEEE 802.1p Class of Service (CoS) 
• IP precedence
• Local precedence: physical port,

source/destination MAC address,
VLAN information, Ethernet type,
Layer 3 protocol, source/destination
IP address, DSCP, datagram type, IP
Layer 4 protocol, IP Layer 4 ports

Flow-based bandwidth management
Flows identified through Access
Control Lists (ACLs)
Minimum and maximum thresholds:
64kbit/s increments, 100 traffic classes
per port
Queuing algorithms
Strict Priority Queuing (SPQ)

Weighted Round Robin (WRR)
provided through bandwidth manage-
ment
IEEE 802.3af Power over Ethernet 
standards-compliant
Available 10/100 and 10/100/1000 
48-port PoE switch modules
PoE modules require external PoE
Power Rack:
• One 2,500W PSU standard with

Power Rack 

• Each 2,500W PSU supports up to

155 PoE ports at full standard
15.4W per port

• Add one or two additional PSUs for

added PoE and N+1 PoE redundancy

SECURITY
IEEE 802.1X Network login user 
authentication
Local authentication and
RADIUS/AAA authentication
RADIUS/TACACS+ session accounting
RADIUS Authenticated Device Access
(RADA): authenticate devices based
on MAC address against RADIUS
server or local database; assign VLAN
ID and ACL through RADIUS
DHCP snooping
Wirespeed packet filtering in hardware
Supports a maximum of 1,536 ACL
rules
ACLs filter at Layers 2, 3 and 4: 
• Physical port
• Source/destination MAC address
• VLAN information
• Ethernet type
• Layer 3 protocol
• Source/destination IP address
• DSCP
• Datagram type
• IP Layer 4 protocol
• IP Layer 4 ports
Anti DoS (Denial of Service) attack 
via BPDU route guard, DHCP server
address check and SYN packet attack
protection
Guest VLAN to quarantine 
unauthorized users or users that 
fail to re-authenticate via RADIUS
Multiple authentication server realm
definitions
Spanning Tree root bridge protection
SYN packet attack protection
Telnet protection
Switch protocol security: MD5 cipher-
text authentication and clear-text
authentication for OSPF v2 and RIP v2
packets and SNMP v3 traffic
IEEE 802.1X user authentication of
switch management on switch Telnet
sessions
Hierarchical management and password
protection for management interface
SNMP v3 encryption

SSH v2 management session 
encryption

SPECIFICATIONS

Available in the 3Com Advanced Feature Software, at additional cost.

SNMP v3 and SSH v2 encryption features are available in the Basic Software with Encryption and Advanced Feature Software versions only.

 


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3COM

®

SWITCH 7750 FAMILY

10

MANAGEMENT
Command Line Interface (CLI) 
configuration mode
Configuration via the control console
port
Local/remote configuration via Telnet
Remote configuration via modem dial-
up
System configuration with SNMP v1,
2 and 3

Secure Shell Version 2 (SSH v2) for
management access

Comprehensive statistics, including
ACL/QoS and IP interface
Remote Monitoring (RMON) groups
statistics, history, alarm and events
System log
Syslog
Detailed alarm and debug information
Front panel indicators for port and
unit status information
Hierarchical alarms; alarm generation
and filtering
Supports ping and traceroute
Configuration file for backup and
restore, stored in non-volatile
memory; multiple configuration files
available
Supports multiple software images and
bank swap, stored in non-volatile
memory
Backup and restore of software images
Network Time Protocol (NTP)
Device Link Detection Protocol (DLDP)
IGMP proxy
DHCP server
DNS client
Port mirroring
Remote port mirroring
Flow-based bandwidth management,
with flows identified through Access
Control Lists (ACLs)
Minimum and maximum thresholds:
64kbit/s increments, 128 traffic classes 
per port, 512 flows per class
Random Early Detect/Discard (RED)
queue handling
Queuing algorithms
Strict priority queuing
WRR (Weighted Round Robin)
provided through bandwidth 
management
DHCP Relay and UDP Helper
System file transfer mechanisms:
Xmodem, File Transfer Protocol (FTP),
Trivial File Transfer Protocol (TFTP),
Secure File Transfer Protocol (SFTP),
Secure Trivial File Transfer Protocol
(STFTP)
Connectivity: 10BASE-T (RJ-45)
Ethernet, RS-232 control port
Port loopback detection
Cable diagnostic test

3Com Management Applications:
• 3Com Enterprise Management Suite

for flexible, extensible management
in advanced enterprise IT 
environments

• 3Com Network Director for 

comprehensive, turn-key network
management for the enterprise

• 3Com Network Supervisor for basic,

turn-key network management for
mid-market businesses

AVAILABLE SWITCH FABRICS
96 Gbps Switch Fabric
Chassis model compatibility: Switch
7758, 7757 and 7754 and Switch
7708R and Switch 7700 7-slot and 
4-slot legacy models
Connections: 4 SFP Gigabit ports 
(SFPs sold separately)

CONNECTIVITY
Mix and match in available payload
slots:
48-port 10BASE-T/100BASE-TX
48-port 10BASE-T/100BASE-TX PoE
20-port 10/100/1000BASE-T
48-port 10/100/1000BASE-T
48-port 10/100/1000BASE-T PoE
12-Port 10/100/1000BASE-T & 4-Port
1000BASE-X (SFP)
4-Port 10/100/1000BASE-T & 12-Port
1000BASE-X (SFP)
20-port 1000BASE-X (SFP)
48-Port 100BASE-FX (SFP)
1-port 10GBASE-X (XENPAK) 

DIMENSIONS
Switch 7758 8-slot:
Height: 51.9 cm (20.4 in); width: 43.6
cm (17.2 in); depth: 48.0 cm (18.9 in)
Weight (fully loaded chassis): 80 kg
(176 lbs)

Switch 7757 7-slot:
Height: 48.6 cm (19.1 in); width: 43.6
cm (17.2 in); depth: 48.0 cm (18.9 in)
Weight (fully loaded chassis): 70 kg
(154 lbs)

Switch 7754 4-slot:
Height: 35.2 cm (13.8 in); width: 43.6
cm (17.2 in); depth: 48.0 cm (18.9 in)
Weight (fully loaded chassis): 50 kg
(110 lbs)

SWITCH POWER SUPPLY
550 W AC Power Supply; dual power
input connections
Input voltage: 100-240 VAC
autoranging
Operating frequency: 47-63 Hz
Maximum current: 15A at 110 VAC;
7A at 200 VAC
Maximum output power: 460 W

ENVIRONMENTAL
Operating temperature: 0° to 40°C 
(32° to 104°F)
Operating humidity: 5% to 85% 
non-condensing
Storage temperature: -40° to 70°C 
(-40° to 158°F)
Storage humidity: 10% to 90% 
non-condensing
Standard: EN 60068 (IEC 68) compliant

MTBF
Switch 7750 96 Gbps Switch Fabric
(3C16886): 46 years (405,000 hours)
Switch 7750/7700 20-port 100BASE-X
SFP (3C16862A): 68 years (594,000
hours)
Switch 7750/7700 20-port
10/100/1000BASE-T (3C16863A): 
59 years (519,000 hours)
Switch 7750/7700 1-port 10GBASE-X
XENPAK (3C16875A): 61 years 
(539,000 hours)
Switch 7750/7700 48-port
10/100/1000BASE-T (3C16888): 
48 years (418,000 hours)
Switch 7750/7700 48-port
10/100BASE-TX (3C16889): 
48 years (421,000 hours)
Switch 7750 48-port
10/100/1000BASE-T PoE (3C16890): 
39 years (342,000 hours)
Switch 7750 48-port 10/100BASE-TX
PoE (3C16891): 44 years (389,000
hours)
Switch 7750/7700 48-port 100BASE-X
SFP (3C168915): 74 years (653,000
hours)
Switch 7750/7700 4-port
10/100/1000BASE-T & 12-port
1000BASE-X SFP (3C168916): 72 years
(628,000 hours)
Switch 7750/7700 12-port
10/100/1000BASE-T & 4-port
1000BASE-X SFP (3C168917): 66 years
(576,000 hours)
Switch 7750 External PoE Power Rack
(3C16883): 18 years (158,000 hours)
Switch 7750/8800 PoE Power Supply
Unit (3C16884): 43 years (375,000
hours)

SPECIFICATIONS 

(CONTINUED)

SNMP v3 and SSH v2 encryption features are available in the Basic Software with Encryption and Advanced Feature Software versions only.

 


background image

3COM

®

SWITCH 7750 FAMILY

11

INDUSTRY STANDARDS
SUPPORTED
Ethernet Protocols
IEEE 802.1D (STP)
IEEE 802.1p (CoS)
IEEE 802.1Q (VLANs)
IEEE 802.1s (MSTP)
IEEE 802.1v (VLANs)
IEEE 802.1w (RSTP)
IEEE 802.1X (Security)
IEEE 802.3ab (1000BASE-T)
IEEE 802.3ad (LACP)
IEEE 802.3ae (10G Ethernet)
IEEE 802.3af (Power over Ethernet)
IEEE 802.3i (10BASE-T)
IEEE 802.3u (100BASE-TX/-FX)
IEEE 802.3x (Flow Control)
IEEE 802.3z (1000BASE-X)

Administration Protocols
RFC 768 (UDP)
RFC 783 (TFTP)
RFC 791 (IP)
RFC 792 (ICMP)
RFC 793 (TCP)
RFC 826 (ARP)
RFC 959 (FTP)
RFC 1058 (RIP v1)
RFC 1112 (IGMP v1)
RFC 1518, 1519 (CIDR)
RFC 1587 (OSPF NSSA Option)
RFC 1723 (RIP v2)
RFC 1765 (OSPF Database Overflow)
RFC 1812 (IP v4)
RFC 2131 (DHCP)
RFC 2132 (DHCP and BOOTP
Extension)
RFC 2138 (RADIUS Authentication)
RFC 2139 (RADIUS Accounting)
RFC 2236 (IGMP v2)
RFC 2267 (Network Ingress Filtering)
RFC 2328 (OSPF v2)
RFC 2338 (VRRP)
RFC 2362 (PIM-SM)
RFC 2370 (OSPF Opaque LSA Option)
RFC 2474 (Diffserv)
RFC 2622 (Routing Policy)
RFC 2819 (RMON)
Management, including 
MIBs Supported
RFC 1155 (Structure and Management
Information (SMI v1))
RFC 1157 (SNMP v1/v2c)
RFC 1213 (MIB II)

RFC 1213, 1573 (MIB II)
RFC 1493 (Bridge MIB)
RFC 1573 (Private IF MIB)
RFC 1724 (RIP Version 2 MIB
Extension)
RFC 1850 (OSPF Version 2 MIB
Extension)
RFC 1901-1907 (SNMP v2c, SMI v2
and Revised MIB-II)
RFC 2233 (Interfaces MIB)
RFC 2271 (FrameWork)
RFC 2572-2575 (SNMP v3)

RFC 2578-2580 (SMI v2)
RFC 2618 (RADIUS Authentication 
Client MIB)
RFC 2620 (RADIUS Accounting 
Client MIB)
RFC 2665 (Pause Control)
RFC 2668 (IEEE 802.3 MAU MIB) 
RFC 2674 (VLAN MIB Extension)
RFC 2787 (VRRP MIB)

EMISSIONS/AGENCY APPROVALS
CISPR 22 Class A
FCC Part 15 Class A
EN 55022 Class A
ICES-003 Class A
VCCI Class A
Korean Class A
CNS 13438 Class A
AS/NZS 3548 Class A
EN 61000-3-2
EN 61000-3-3

IMMUNITY
EN 55024: 1998
EN 61000-4-2
EN 61000-4-3
EN 61000-4-4
EN 61000-4-5
EN 61000-4-6
EN 61000-4-11

SAFETY AGENCY CERTIFICATIONS
UL 60950 3rd ed.
IEC 60950: 1999, corr. Feb. 2000; all
national deviations
EN 60950: 2000, ZB and ZC deviations
CSA 22.2 No. 950 3rd ed., 1995
NOM-019 SCFI, Mexico; AS/NZS
60950:2000, Australia; Russian GOST
safety approval

SYSTEM SOFTWARE OPTIONS
Basic Software
Standard software version for Switch
7750, pre-loaded on Switch Fabric
Basic Software with Encryption
Includes all features of the Basic
Software plus SNMP v3 and SSH v2
encryption
Available as a free download:
www.3com.com/software_7750

Advanced Feature Software
Includes all features of the Basic
Software with Encryption plus:
• BGP4 (WAN routing protocol)
• IS-IS (Large-scale WAN routing

protocol)

Ordered separately 

WARRANTY
Limited Hardware Warranty for 1 year
Limited Software Warranty for 90 days
90 days of telephone technical support
Refer to 

www.3com.com/warranty

for details.

SPECIFICATIONS 

(CONTINUED)

SNMP v3 and SSH v2 encryption features are available in the Basic Software with Encryption and Advanced Feature Software versions only.

 


background image

3COM

®

SWITCH 7750 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 publicly traded on NASDAQ under the symbol COMS.

Copyright © 2007 3Com Corporation. All rights reserved. 3Com and the 3Com logo are registered trademarks, TippingPoint and VCX are trademarks, and Guardian
and Express are service marks, of 3Com Corporation or one of its subsidiaries. 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.

400953-004  02/07

PRODUCT DESCRIPTION

3COM SKU

Chassis Kits 

3Com Switch 7758 8-Slot Chassis Kit

3C16896

§

(consisting of PoE-ready chassis, two power supplies and fan assembly; 
switch fabric ordered separately)
3Com Switch 7757 7-Slot Chassis Kit 

3C16895

§

(consisting of PoE-ready chassis, two power supplies and fan assembly; 
switch fabric ordered separately)
3Com Switch 7754 4-Slot Chassis Kit

3C16894

§

(consisting of PoE-ready chassis, one power supply and fan assembly; 
switch fabric ordered separately)

Switch Fabric 

3Com Switch 7750 96 Gbps Switch Fabric

3C16886

Modules

3Com Switch 7750/7700 20-port 1000BASE-X (SFP)

3C16862A

3Com Switch 7750/7700 20-port 10/100/1000BASE-T

3C16863A

3Com Switch 7750/7700 1-port 10GBASE-X (XENPAK)

3C16875A

3Com Switch 7750/7700 48-port 10/100/1000BASE-T

3C16888

3Com Switch 7750/7700 48-port 10/100BASE-TX

3C16889

3Com Switch 7750 48-port 10/100/1000BASE-T PoE

3C16890

3Com Switch 7750 48-port 10/100BASE-TX PoE

3C16891

3Com Switch 7750/7700 48-Port 100BASE-FX SFP

3C168915

3Com Switch 7750/7700 12-Port 10/100/1000BASE-T & 4-Port 

3C168916

1000BASE-X SFP
3Com Switch 7750/7700 4-Port 10/100/1000BASE-T & 12-Port 

3C168917

1000BASE-X SFP

Power over Ethernet (PoE) Components

3Com Switch 7750 External PoE Power Rack

3C16883

§

3Com Switch 7750/8800 PoE Power Supply Unit 

3C16884

Software

3Com Switch 7750 Advanced Feature Software

3CR1686593-V3.2

(for use with 96 Gbps Switch Fabric, 3C16886)

Transceivers

3Com 100BASE-FX SFP

3CSFP81

3Com 1000BASE-SX SFP

3CSFP91

3Com 1000BASE-LX SFP

3CSFP92

3Com 1000BASE-T SFP

3CSFP93

3Com 1000BASE-LH70 (70km) SFP

3CSFP97

3Com 10GBASE-LR XENPAK

3CXENPAK92

3Com 10GBASE-CX4 XENPAK

3CXENPAK95

3Com 10GBASE-ER XENPAK

3CXENPAK96

Spare Components

3Com Switch 77xx Family AC Power Supply

3C16854

3Com Switch 7758 and Switch 7708R 8-Slot Fan Assembly

3C16855

3Com Switch 7757 and Switch 7700 7-Slot Fan Assembly

3C16856

3Com Switch 7754 and Switch 7700 4-Slot Fan Assembly 

3C16871

3Com Global Services

3Com Network Health Check, Installation Services, 
and Express Maintenance 

www.3com.com/services_quote

3Com University Courses

www.3com.com/3comu

§

Country-specific code must be used when ordering.

Not for use in legacy models Switch 7708R or Switch 7700 7-slot and 4-slot chassis.

ORDERING 
INFORMATION