Secure, Intelligent Switch with PoE for Growing Small Businesses
Highlights
Connects up to 24 network devices - PCs, printers, and servers - to share and transfer files and videos across your network
Power over Ethernet easily and cost-effectively powers wireless access points, video cameras, and other network-connected endpoints
Simplified, web-based management for easy installation and configuration
Strong security protects network traffic to keep unauthorized users off the network
Figure 1. Cisco SRW224G4P 24-Port 10/100 + 4-Port Gigabit Switch: WebView/PoE
Product Overview
The Cisco SRW224G4P 24-Port 10/100 + 4-Port Gigabit Switch (Figure 1) offers a highly secure way to expand your network. Web-based configuration of the switch is secured using SSL. User access is verified using 802.1X security with a RADIUS authentication mechanism and can also be controlled using MAC-based filtering.
Extensive quality of service (QoS) features make the solution ideal for real-time applications such as voice and video. The four priority queues, together with the weighted round-robin and strict priority scheduling techniques, facilitate efficient coexistence of real-time traffic with data traffic, allowing each to meet its QoS needs. Individual users or applications can be prioritized above others using various class of service options - by port, Layer 2 priority (802.1p), and Layer 3 priority (type of service [ToS] or differentiated services code point [DSCP]). Intelligent broadcast and multicast storm control minimizes and contains the effect of these types of traffic on regular traffic. Internet Group Management Protocol (IGMP) snooping limits bandwidth-intensive video traffic to only the requestors without flooding all users. Incoming traffic can be policed and outgoing traffic can be shaped, allowing you to control network access and traffic flow.
Other features of the Cisco SRW224G4P allow you to expand and grow your network of switches. Link aggregation allows multiple high-bandwidth trunks between switches to be set up. This also provides reliability, in that the system continues to operate if one of the links breaks. Spanning Tree Protocol (STP), Fast STP, Rapid STP (RSTP), and Multiple STP (MSTP) allow you to build a mesh of switches, increasing the availability of the system.
The rich features of the WebView management software include Simple Network Management Protocol (SNMP), Remote Monitoring (RMON), Telnet, and HTTP management options, allowing you to flexibly integrate and manage these devices in your network.
Automatic load sensing in the power control circuitry automatically detects Power over Ethernet (PoE) on the access points before providing power. Power feeding of Ethernet is limited for fixed 10BASE-T/100BASE-TX ports. The switch can provide maximum output power per PoE port up to 15.4W on 12 ports or 7.5W on 24 ports simultaneously. Each port has independent overload and short-circuit protection, with LED indicators for power status. The switch also supports IEEE 802.3af MIB for PoE, IEEE 802.1d STP, IEEE 802.1w RSTP, Fast Linkover, and IEEE 802.1s MSTP. Cable diagnostics can be performed using the switch's WebView utility.
Features
Twenty-four 10/100 switched RJ-45 ports deliver up to 4 Gbps of throughput per port
Two shared 10/100/1000 mini Gigabit Interface Converter (mini-GBIC) ports
Switching capacity delivers wire-speed performance at 12.8 Gbps, nonblocking capacity
WebView monitoring allows administrators to view the current status and configuration using their favorite web browser
PoE on twenty-four 10/100 ports supplies up to 7.5W per port, or on twelve 10/100 ports supplies up to the IEEE 802.3af maximum of 15.4W per port
Automatic medium dependent interface (MDI) and MDI crossover (MDI-X) cable detection
Port-based and 802.1Q-based VLANs support up to 256 VLANs
Port trunking for up to eight groups allows you to increase your bandwidth for each uplink or server connection
Port configuration settings for link, speed, auto MDI/MDI-X, flow control, and more
Fully rack mountable using the included rack-mounting hardware
MAC address table supports up to 8000 MAC address entries
Optimal platform to support real-time applications such as voice and video, with features like IGMP snooping, multiple queues (4) with appropriate scheduling techniques, prioritization of traffic based on port, 802.1p, IP ToS/precedence/DSCP, TCP/ User Datagram Protocol (UDP) port, and line rate forwarding mechanisms
Enhanced QoS functions including rate limiting for ingress/egress and per flow at 64 kbps granularity
Secure control via SSH for Telnet interface and SSL for HTTP interface
User/network security via 802.1X (with RADIUS authentication) and MAC-based filtering
Advanced security ACL can deny or limit network access based on Layer 1 through Layer 4 information - for example, MAC address, Ethernet type, VLAN ID, IP address, protocol ID, or TCP/UDP port
Containment of storms - broadcast and multicast
Expandability and availability increased across multiple switches using link aggregation
Port trunking for up to eight groups with up to eight ports per group, allowing you to increase your bandwidth for each uplink or server connection
SNMP and RMON management expand your visibility options
Specifications
Table 1 contains the specifications, package contents, and minimum requirements for the Cisco SRW224G4P 24-port 10/100 + 4-Port Gigabit Switch.
Table 1. Specifications for the Cisco SRW224G4P 24-Port 10/100 + 4-Port Gigabit Switch: WebView/PoE
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Specifications
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Ports
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24 RJ-45 connectors for 10BASE-T, 100BASE-TX, and 1000BASE-T with 2 shared Small Form-Factor Pluggable (SFP) slots and 2 mini-GBIC ports
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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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12.8 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 active VLANs - 4096 range
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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, 2, 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, and 9 only), RFC2737 entity MIB, RFC2618 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 (SSHv2)
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
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Security
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IEEE 802. 1X
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802.1X - RADIUS authentication; MD5 encryption
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Access control
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Access control lists (ACLs) - Drop or rate limit based on:
Source and destination MAC-based
Source and destination IP address
Protocol
ToS/differentiated services code point (DSCP)
Port
VLAN
Ethertype
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Availability
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Link aggregation
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Link aggregation using IEEE 802.3ad Link Aggregation Control Protocol (LACP)
Up to 8 ports in up to 8 trunks
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Storm control
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Broadcast and multicast
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Spanning Tree
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IEEE 802.1d Spanning Tree
IEEE 802.1w Rapid Spanning Tree
IEEE 802.1s Multiple Spanning Tree, Fast Linkover
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IGMP snooping
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IGMP (v1/v2) 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
IPv4 IP precedence/ToS/DSCP
TCP/UDP port
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Layer 2
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VLAN
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Port-based and 802.1Q-based VLANs
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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Standards
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802.3 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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17.32 x 1.75 x 13.7 in.
(440 x 44 x 348 mm)
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Unit weight
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8.85 lb (4.02 kg)
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Power
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100-240V 0.5A
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Certification
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FCC Part 15 Class A, CE Class A, UL CSA (CSA22.2), CE mark, CB
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Operating temperature
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32 to 122F (0 to 45C)
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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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20% to 95%
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Storage humidity
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5% to 90% noncondensing
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Package Contents
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Cisco SRW224G4P 24-Port 10/100 + 4-Port Gigabit Switch
AC power 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 utility: Microsoft Internet Explorer (version 5.5 or later)
Category 5 Ethernet network cable
Operating system: Windows 2000, XP, or later
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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
