High-Performance, Reliable Switching for Small Businesses
Highlights
48 high-speed ports optimized for performance and to support bandwidth-intensive applications
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 SRW2048 48-Port Gigabit Switch: WebView
Product Overview
Small businesses require cost-effective yet scalable networking solutions that can meet changing business needs. The Cisco SRW2048 48-Port Gigabit Switch (Figure 1) brings Gigabit speeds to your users and servers, while increasing the intelligence and security of the network infrastructure. The forty-eight 10/100/1000 Mbps ports enable you to take advantage of the Gigabit Ethernet interfaces shipping in the current generation of servers, workstations, and storage devices, in addition to supporting your existing 10/100 Mbps clients. 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 unsecure. Unauthorized access to the network and mission-critical data is a constant concern. The Cisco SRW2048 helps secure the network by using 802.1X port authentication, access control lists (ACLs), and MAC addresses port locking. 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 QoS and traffic management features in the Cisco SRW2048, voice data can be prioritized, helping ensure clear and reliable voice communications.
Taking advantage of the advanced features of the Cisco SRW2048 can further secure the integrity of your network. The WebView interface provides an intuitive, highly secure management interface, enabling you to better utilize the comprehensive feature set of the switch for a better-optimized, more secure network.
Features
Forty-eight 10/100/1000 switched RJ-45 ports with automatic medium dependent interface (MDI) and MDI crossover (MDI-X) cable detection
4 mini Gigabit Interface Converter (mini-GBIC) ports for fiber or copper interconnections
Nonblocking, store-and-forward switching mechanism
Simplified quality of service (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 management
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/MDIX and 802.1ab (Link Layer Discovery Protocol [LLDP])
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
Broadcast, multicast, and unknown unicast storm control
Port mirroring for noninvasive monitoring of switch traffic
Jumbo frame support (10 KB)
Simple Network Management Protocol (SNMP) versions 1, 2c, and 3 and Remote Monitoring (RMON) support
Fully rack mountable using the included rack-mounting hardware
Specifications
Table 1 contains the specifications, package contents, and minimum requirements for the Cisco SRW2048 48-Port Gigabit Switch.
Table 1. Specifications for the Cisco SRW2048 48-Port Gigabit Switch: WebView
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Specifications
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Ports
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48 RJ-45 connectors for 10BASE-T, 100BASE-TX and 1000BASE-T with 4 shared Small Form-Factor Pluggable (SFP) slots
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Cabling type
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Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX
UTP Category 5 Ethernet or better for 1000BASE-T
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LEDs
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Power, Link/Act, Speed
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Performance
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Switching capacity
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96 Gbps, nonblocking
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MAC table size
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8000
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Number of VLANs
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256 VLANs
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Management
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Web user interface
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Built-in web user interface for easy browser-based configuration (HTTP/HTTPS)
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SNMP
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SNMP versions 1, 2c, and 3 with support for traps
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SNMP MIBs
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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 1,2,3,9 only), RFC2737 entity MIB
RFC 2618 RADIUS client MIB
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RMON
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Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis
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Firmware upgrade
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Web browser upgrade (HTTP)
Trivial File Transfer Protocol (TFTP) upgrade
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Port mirroring
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Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe
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Other management
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RFC854 Telnet (menu-driven configuration)
SSH and Telnet management
Telnet client
SSL security for web user interface
Switch audit log
DHCP client
BOOTP
Simple Network Time Protocol (SNTP)
Xmodem upgrade
Cable diagnostics
Ping
Traceroute
Syslog
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Security Features
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IEEE 802.1X
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802.1X - RADIUS authentication; MD5 encryption
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ACLs
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Differentiated services code point (DSCP)/IP precedence-based class of service (CoS)
IPv6 traffic-class-based CoS
IP address
Subnet mask
Protocol
Service type
MAC address
VLAN ID
TCP/ User Datagram Protocol (UDP) port
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Availability
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Link aggregation
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Link aggregation using IEEE 802.3ad LACP
Up to 8 ports in up to 8 trunks
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Storm control
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Broadcast, multicast, and unknown unicast
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Spanning Tree
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IEEE 802.1d Spanning Tree, IEEE 802.1s Multiple Spanning Tree
IEEE 802.1w Rapid Spanning Tree, Fast Linkover
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Internet Group Management Protocol (IGMP) snooping
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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
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QoS
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Priority levels
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4 hardware queues
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Scheduling
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Priority queuing and weighted round-robin (WRR)
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Class of service
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Port based
802.1p VLAN priority based
IP ToS/DSCP based
IPv6 traffic-class-based CoS
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Rate limiting
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Ingress policer, egress shaper
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Layer 2
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VLAN
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Port-based and 802.1Q-based VLANs
PVE
Management VLAN
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Head-of-line (HOL) blocking
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HOL blocking prevention
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Jumbo frame
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Supports frames up to 10 KB
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Dynamic VLAN
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GVRP-dynamic VLAN registration
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Standards
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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
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Environmental
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Dimensions
W x H x D
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16.93 x 1.75 x 13.78 in.
(430 x 44.5 x 350 mm)
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Unit weight
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2.20 lb (1 kg)
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Power
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Internal switching power
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Certification
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FCC Part 15 Class A, CE Class A, UL, cUL, CE mark, CB
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Operating temperature
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32 to 104F (0 to 40C)
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Storage temperature
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-4 to 158F (-20 to 70C)
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Operating humidity
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10% to 90%
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Storage humidity
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10% to 95%
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Package Contents
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Cisco SRW2048 48-Port Gigabit Switch
AC power adapter and cord
Rack mounting kit with brackets and hardware
CD with user guide in PDF format
Online registration card
Console cable
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Minimum Requirements
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Web-based configuration: Java-enabled browser
Category 5 Ethernet network cable
TCP/IP installed on each computer within the network
Network adapter installed in each computer
Network operating system (Windows, Linux, Mac OS X)
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Product Warranty
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5-year limited hardware warranty with return to factory replacement and 90-day limited software warranty
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Networking
