3Com SWITCH 4050 Manuel utilisateur

DATA SHEET

3Com®XRN™Interconnect Kit

XRN™Technology

The 3Com®eXpandable Resilient

Networking (XRN™) Interconnect Kit

enables two SuperStack®3 Switch 4900

family or two 3Com®Switch 4050 and

4060 switches to build an XRN Phase

One Distributed Fabric.

Pay As You Grow

3Com XRN technology lets customers

cost-effectively upgrade their existing

core based on a single SuperStack 3

Switch 4900 or 3Com Switch 4050

and 4060, to a high-performance,

high-availability, 48-port multilayer

Gigabit switching core.

Network Level Availability

XRN technology lets customers design

and implement core Gigabit backbones

that feature no single point of failure—

a safeguard against hardware, cabling,

or software failure.

Performance and Scalability

The distributed nature of XRN

technology takes full advantage of the

high-performance, non-blocking

switching capacity of each switch in the

Distributed Fabric—yielding aggregate

forwarding capacity in excess of

70Mpps across the 48 switched Gigabit

ports.

Manageability

XRN Technology enables unprecedented

levels of manageability across the two

switches in the Distributed Fabric, by

offering "plug and play" setup of the

Fabric, single IP address management,

and fabric-wide configuration of all

management, system and port features.

High Performance Layer 3 Switching

An XRN Distributed Fabric uses the

Layer 3 switching capabilitiies of both

switches for greater performance and

scalability but without the complexity

of managing two separate routers.

Distributed Link Aggregation

Configuring ports of an aggregated link

across both switches in a Distributed

Fabric enables wiring closets to be dual-

homed for greater availability and

performance across the network back-

bone.

Flexibility and Migration

An XRN Phase One Distributed Fabric is

built with any combination of SuperStack

3 Switch 4900 family or 3Com Switch

4050 and Switch 4060.

Advanced Security capabilities

Security features such as RADIUS Client

and Routed Access Control Lists ensure

authorized user access to network

resources. Also, Application Filtering

lets the XRN Distributed Fabric identify

and discard unauthorized applications.

Powerful Management

3Com Network Supervisor fully supports

XRN Phase One fabrics and provides

discovery, mapping, monitoring, and

alerting for easy network administration.

Network-wide switch traffic prioritiza-

tion can also be performed. The 3Com

Network Supervisor Advanced Package

increases the number of IP devices

supported and provides advanced con-

figuration capabilities such as bulk

software upgrades.

Key Benefits

3COM®XRN™INTERCONNECT KIT DATA SHEET

The main components of the XRN

technology are as follows:

Distributed Device Management (DDM)

DDM lets customers configure and

manage the Distributed Fabric as a

single entity via the CLI, Web inter-

face, or SNMP. In the event of failure

in one of the switches, management

access to the remaining switch is

retained on the same IP address.

Distributed Link Aggregation (DLA)

DLA enables wiring closet switches or

hosts to create Aggregated Links that

are dual-homed across the switches in

the Distributed Fabric. Should a port

in the Aggregated Link fail, traffic

will be forwarded via the remaining

ports. DLA provides Intelligent Local

Forwarding—enabling each switch in

the Fabric to make its own forwarding

decisions, without sending traffic

across the Fabric Interconnect.

Distributed Resilient Routing (DRR)

DRR lets both switches in the

Distributed Fabric act as a single

logical router. The switches use the

same router interfaces and mirror

each other's routing tables. This pro-

tects the network against unit failure

and enables each switch to locally

route traffic for greater Layer 3 for-

warding performance.

XRN Phase One, enabled by the

3Com XRN Interconnect Kit, is the

first evolution of XRN technology. It

is supported on the 3Com Switch

4050 and 4060, and the SuperStack 3

Switch 4900 family. XRN Phase One

lets customers build a Distributed

Fabric with two 3Com switches which

are managed as a single logical entity.

A Fabric retains the software

capabilities and functionality of its

component switches.

eXpandable Resilient Networking Technology

Distributed Resilient Routing

3Com Gigabit Multilayer Switching Software

3Com Gigabit Multilayer Switching ASIC Technology

3Com Network Management

Distributed Device

Management Distributed Link Aggregation

ARP Tables

Router

Interfaces

Routing

Tables

Routing

Protocols

Access

Control Lists

SNMP

Fabric

Configuration

STP & RSTP

802.1Q

VLANS

CoS & QoS

Device

Security

Gigabit

Technology

LAG Groups

LAG Ports

Different

Media

IEEE

802.3ad

figure 1

XRN Technology Hierarchy

"3Com offers a revolutionary

approach to build enterprise

LAN cores with innovative

technology that breaks new

ground in the networking

industry."

Zeus Kerravala, vice president of

Enterprise Infrastructure, Yankee Group

3Com eXpandable Resilient

Networking (XRN™) is a patented

technology that lets enterprise

customers design and implement

affordable, high-availability Gigabit

Ethernet core and aggregation back-

bones that provide exceptional

performance and flexibility. XRN

technology lets multiple Gigabit Layer

3 switches function as a single multi-

layer switching entity called a

Distributed Fabric. The Fabric is

managed and configured as a single

device, even though each switch in

the Distributed Fabric makes its own

Layer 2 and Layer 3 forwarding

decisions.

The XRN technology hierarchy is

shown in figure 1.

XRN Technology Overview

3COM®XRN™INTERCONNECT KIT DATA SHEET

An XRN Phase One Distributed

Fabric retains the functionality of its

component switches. 3Com Gigabit

Multilayer Switching Software v3.0

provides management and multilayer

switching functionality for the XRN

Fabric. VLAN tagging, Multicast

Filtering, Spanning Tree and Rapid

Spanning Tree (802.1w) provide XRN

Fabrics with rich Layer 2 features for

demanding Gigabit backbones.

Distributed Link Aggregation using

IEEE 802.3ad/LACP enables automatic

configuration of aggregated links

across both switches in the Fabric for

greater levels of resiliency and perfor-

mance.

A Distributed Fabric supports Layer 3

switching for IP networks, enabling

unicast IP routing supporting static

routes, RIP and RIPv2, IP Multinetting,

Classless Interdomain Routing (CIDR)

and UDP Helper.

In addition, DDR provides distributed

routing functionality and resiliency

across a fabric. Enhanced Quality of

Service provides multiple priority

queues per port, traffic classification

and prioritization, using multilayer

packet information and queue

scheduling based on WRR. Priority

Remarking, Application Filtering and

Webcache Redirection for enhanced

traffic control across the backbone

may also be available. Greater security

is provided by RADIUS Client for

management access, Application

Filtering for controlling rogue

applications across the backbone

and Routed Access Control Lists.

Using DDM, true plug-and-play

support, single IP address manage-

ment, single step software upgrades,

and fabric-wide configuration via

SNMP, Web interface, and the CLI ease

device management in the Distributed

Fabric. In addition, the Fabric supports

7 groups of RMON and RMON event

notification via an integrated SMTP

client.

The 3Com XRN Interconnect Kit

includes two XRN modules, a 1 meter

cable (an optional 5m cable is also

available), and version 3.0 of the

3Com Gigabit Multilayer Switching

Software.

When installed, it provides a high-

performance 8Gbps connection which

enables configuration and manage-

ment of the Distributed Fabric as

single switching entity. If one switch

in the Fabric fails, management and

Layer 2 and Layer 3 switching are

automatically restored on the remaining

switch.

In the unlikely event of a failure in an

XRN interconnect module or cable,

DLA continues to provide an active

path allowing the switches to

communicate, and DRR ensures that

only one of the switches continues to

route—eliminating the possibility of

duplicate routers on the network.

XRN technology can be deployed at

all areas of an enterprise network: at

the core backbone with the 3Com

Switch 4060 and Switch 4050; the

server farm with a SuperStack 3

Switch 4924; in the wiring closet

using the SuperStack 3 Switch 4900

and 4900SX as Gigabit aggregation

switches.

An XRN Distributed Fabric using 3Com Switch 4060s,

the XRN Interconnect Kit, and the 5m Interconnect Cable

Product Overview

Advanced Multilayer Switching Functionality

3COM®XRN™INTERCONNECT KIT DATA SHEET

3Com Corporation, Corporate Headquarters, 5400 Bayfront Plaza, P.O. Box 58145, Santa Clara, CA 95052-8145.

To learn more about 3Com solutions, visit www.3com.com. 3Com Corporation is publicly traded on Nasdaq under the

symbol COMS.

XRN is a trademark, of 3Com Corporation. All other company and product names may be trademarks of their respective compa-

nies. While every effort is made to ensure the given information is accurate, 3Com does not accept liability for any errors or mis-

takes which may arise. All specifications are subject to change without notice. 400780-001 11/02

3Com XRN Interconnect Kit 3C17715

3Com 5m XRN Interconnect Cable 3C17722

The XRN Interconnect Kit can be used with the following 3Com Switches:

3Com Switch 4050 3C17708

3Com Switch 4060 3C17709

3Com SuperStack 3 Switch 4900 3C17700

3Com SuperStack 3 Switch 4900 SX 3C17702

3Com SuperStack 3 Switch 4924 3C17701

3Com SuperStack 3 Switch 4950 3C17706

Ordering Information

Dimensions

Height: 46 mm (1.8 in)

Width: 146 mm (5.8 in)

Depth: 245 mm (9.7 in)

Weight: 0.35 kg (12.3 oz)

Environmental Requirements

Operating temperature: 0° to

40°C (32° to 104°F)

Operating Humidity: 10%

to 95% relative humidity

non-condensing

Safety Agency Certifications

UL1950, EN60950, CSA22.2 No.

950-93, IEC 950, AS/NZS 3260

Emissions

EN55022 Class A, FCC Part 15

Class A, ICES-003 Class A, VCCI

Class A, AS/NZS 3548 Class A,

CNS 13438 Class A, CISPR22

Class A, Korean EMI Class A

Power Consumption

3 W maximum

Warranty

Hardware: Limited Warranty for

one year.

Software: Ninety (90) days.

See www.3com.com/warranty

for details.

Specifications

XRN technology can be used throughout an enterprise network to provide

high-performance, highly fault-tolerant backbones, Gigabit-over-copper

aggregation, and Layer 3 switching. It lets larger networks connect multiple

fabrics for greater performance and increased scalability.

XRN Phase One Applications

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