Cisco SRW248G4 - Small Business Managed Switch Bedienungsanleitung

Data Sheet

Cisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch:

WebView

Cisco Small Business Managed Switches

Secure, Reliable, Intelligent Switching for Your Growing Small Business

Highlights

●Connects up to 48 network devices - PCs, printers, and servers - to share and transfer

files and videos across your network

●Strong security protects network traffic to keep unauthorized users off the network

●Intelligent QoS helps ensure a consistent network experience and supports networked

applications including voice, video, and data storage

●Simplified, web-based management for easy installation and configuration

Figure 1. Cisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch: WebView

Product Overview

Growing businesses require cost-effective networking solutions that can scale to meet ever-

changing business needs. The Cisco®SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch (Figure

1) brings increased intelligence and security to the network infrastructure. The forty-eight 10/100

Mbps ports enable you to consolidate your network from several smaller switches or hubs to a

single managed switch. The optional Gigabit optical interfaces allow you to expand the network as

your business grows.

Network security is a top priority in any size business. Most business data networks, large and

small, are unsecured. Unauthorized access to the network and mission-critical data is a constant

concern. The Cisco SRW248G4 helps secure the network through 802.1X port authentication and

MAC-based filtering. The 802.1X standard requires clients to authenticate themselves before the

port will pass data for them.

Businesses are recognizing the benefits of voice over IP (VoIP) and are quickly migrating their

voice services to IP-based platforms, requiring their local area networks to support both voice and

data applications. In unmanaged IP networks, bursty data sessions can disrupt voice packet

delivery, causing poor voice quality. With the enhanced quality of service (QoS) and traffic-

Data Sheet

management features in the Cisco SRW248G4, voice data can be prioritized, helping ensure clear

and reliable voice communications.

Enabling the advanced features of the Cisco SRW248G4 further secures the integrity of your

network. The WebView interface provides an intuitive, highly secure management interface,

helping you to better utilize the comprehensive feature set of the switch for a better-optimized,

more secure network.

Features

●Forty-eight 10/100 switched RJ-45 ports with automatic medium dependent interface

(MDI) and MDI crossover (MDI-X) cable detection

●Four 10/100/1000 switched RJ-45 ports with auto MDI/MDI-X cable detection

●Two shared mini Gigabit Interface Converter (mini-GBIC) ports for optical or copper

interconnection

●Nonblocking, store-and-forward switching mechanism

●Simplified QoS management enabled by advanced queuing techniques using 802.1p,

Differentiated Services (DiffServ), or type of service (ToS) traffic prioritization

specifications

●Configuration and monitoring from a standard web browser with WebView

●Highly secure remote management of the switch via Secure Shell (SSH) and SSL

secure channel network protocols

●802.1Q-based VLANs enable segmentation of networks for improved performance and

security

●Private VLAN Edge (PVE) for simplified network isolation of guest connections or

autonomous networks

●Automatic configuration of VLANs across multiple switches through Generic VLAN

Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP)

●Automatic port configuration through auto MDI/MDI-X

●802.1ab (Link Layer Discovery Protocol [LLDP]) and Universal Plug and Play (UPnP)

support

●User/network port-level security via 802.1X authentication and MAC-based filtering

●Increased bandwidth (up to 8x) and added link redundancy with Link Aggregation

Control Protocol (LACP)

●Enhanced rate-limiting capabilities provide control, including back pressure to control

the rate at which data can flow into and out of a port

●Multicasting, broadcasting, and flooding control

●Port mirroring for noninvasive monitoring of switch traffic

●Mini jumbo frame support

●Simple Network Management Protocol (SNMP) versions 1, 2c, and 3

●Fully rack mountable using the included rack-mounting hardware

Data Sheet

Specifications

Table 1 contains the specifications, package contents, and minimum requirements for the Cisco

SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch.

Table 1. Specifications for the Cisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch: WebView

Specifications

Ports ●48 RJ-45 connectors for 10BASE-T and 100BASE-TX

●4 RJ-45 connectors for 10BASE-T/100BASE-TX/1000BASE-T with 2 shared Small

Form-Factor Pluggable (SFP) slots

●Auto MDI/MDI-X

●Auto negotiate/manual setting

Cabling type ●Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX

●UTP Category 5 Ethernet or better for 1000BASE-T

LEDs Power, Link/Act, Speed

Performance

Switching capacity 17.6 Gbps, nonblocking

MAC table size 8000

Number of VLANs 256 - static and dynamic

Management

Web user interface Built-in web user interface for easybrowser-based configuration (HTTP/HTTPS)

SNMP SNMP versions 1, 2, and 3 with support for traps

SNMP MIBs ●RFC1213 MIB-2

●RFC2863 interface MIB

●RFC2665 Ether-like MIB

●RFC1493 bridge MIB

●RFC2674 extended bridge MIB (P-bridge, Q-bridge)

●RFC2819 RMON MIB (groups 1, 2, 3, and 9 only)

●RFC 2618 RADIUS client MIB

Remote Monitoring (RMON) Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and

events) for enhanced traffic management, monitoring, and analysis

Firmware upgrade ●Web browser upgrade (HTTP)

●Trivial File Transfer Protocol (TFTP) upgrade

Port mirroring Traffic on a port can be mirrored to another port for analysis with a network analyzer or

RMON probe

Other management ●RFC854 Telnet (menu-driven configuration)

●SSH and Telnet management

●Telnet client

●SSL security for web user interface

●Switch audit log

●Dynamic Host Configuration Protocol (DHCP) client

●BOOTP

●Simple Network Time Protocol (SNTP)

●Xmodem upgrade

●Cable diagnostics

●Ping

●Traceroute

●Syslog

Security

IEEE 802.1X 802.1X - RADIUS authentication; MD5 encryption

Access control Filtering: MAC-based

Availability

Link aggregation ●Link aggregation using IEEE 802.3ad LACP

●Up to 8 ports in up to 8 trunks

Data Sheet

Storm control Broadcast, multicast, and unknown unicast

Spanning Tree IEEE 802.1d Spanning Tree, IEEE 802.1s Multiple Spanning Tree, IEEE 802.1w Rapid

Spanning Tree, Fast Linkover

Internet Group Management

Protocol (IGMP) snooping IGMP (versions 1 and 2) snooping provides for fast client joins and leaves of multicast

streams and limits bandwidth-intensive video traffic to only the requestors

QoS

Priority levels 4 hardware queues

Scheduling Priority queuing and weighted round-robin (WRR)

Class of service (CoS) ●Port based

●802.1p VLAN priority based

●IP ToS/DSCP based

●IPv4 and IPv6 traffic class–based CoS

Rate limiting Ingress policer, egress shaper

Layer 2

VLAN ●Port-based and 802.1Q-based VLANs

●PVE

●Management VLAN

Head-of-line (HOL) blocking HOL blocking prevention

Mini jumbo frame Supports frames up to 1600 bytes

Dynamic VLAN GVRP - dynamic VLAN registration

Standards ●802.3i 10BASE-T Ethernet

●802.3u 100BASE-TX Fast Ethernet

●802.3ab 1000BASE-T Gigabit Ethernet

●802.3z Gigabit Ethernet

●802.3x flow control

Environmental

Dimensions

W x H x D 16.93 x 1.75 x 13.78 in.

(430 x 45 x 350 mm)

Unit weight 8.60 lb (3.9 kg)

Power Internal switching power

Certification FCC Part 15 Class A, CE Class A, UL, cUL, CE mark, CB

Operating temperature 32º to 104ºF (0º to 40ºC)

Storage temperature -4º to 158ºF (-20º to 70ºC)

Operating humidity 10% to 90%

Storage humidity 10% to 95%

Package Contents

●Cisco SRW248G4 48-Port 10/100 + 4-Port Gigabit Switch

●AC power cord

●Rack-mounting kit with brackets and hardware

●CD with user guide in PDF format

●Registration card

●Console cable

Minimum Requirements

●Web-based utility: Microsoft Internet Explorer (version 5.5 or later)

●Category 5 Ethernet network cables

●Operating system: Windows 2000, XP, or later

Product Warranty

5-year limited hardware warranty with return to factory replacement and 90-day limited software warranty

Data Sheet

Cisco Limited Warranty for Cisco Small Business Series Products

This Cisco Small Business product comes with a 5-year limited hardware warranty with return to

factory replacement and a 90-day limited software warranty. In addition, Cisco offers software

application updates for bug fixes and telephone technical support at no charge for the first 12

months following the date of purchase. To download software updates, go to:

http://www.cisco.com/go/smallbiz.

Product warranty terms and other information applicable to Cisco products are available at

http://www.cisco.com/go/warranty.

For More Information

For more information on Cisco Small Business products and solutions, visit:

http://www.cisco.com/smallbusiness.

Printed in USA C78-502283-00 11/08

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