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Feature
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Description
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Performance
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Switching capacity
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•ESW-520-48P: 17.6 Gbps
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Forwarding capacity
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Forwarding rate based on 64-byte packets:
• ESW-520-48P: 13 mpps
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Flash
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8-port models: 16 MB
24- and 48-port models: 32 MB
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DRAM
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128 MB
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Layer 2 Switching
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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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VLANs
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VLAN support for:
• 802.1Q tag-based VLANs
• Protocol-based VLAN
• Management VLAN
• Multicast TV VLAN
• Private VLAN Edge (PVE)
• Generic VLAN Registration Protocol (GVRP)
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Head-of-line (HOL) blocking
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HOL blocking prevention
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Smartports (Preset Cisco Recommended Network Configuration, QoS, and Security)
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Desktop
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• Optimized for desktop connectivity
• Configurable VLAN setting
• Port security enabled to prevent unauthorized access to the network
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IP phone plus desktop
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• Optimized QoS for IP phone and desktop configurations
• Voice traffic placed on "Cisco-Voice" VLAN
• Configurable data VLAN
• QoS level assures that voice-over-IP (VoIP) traffic takes precedence
• Port security enabled to prevent unauthorized access to the network
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Router
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Configured for optimal connection to a router or firewall for WAN connectivity
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Switch
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• Configured as an uplink port to another switch or router Layer 2 port for fast convergence
• Enables 802.1Q trunking
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Access point
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• Configured for optimal connection to a wireless access point
• Configurable VLAN
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Guest
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• Guests are allowed access to the Internet but not to the company network
• All guest ports are placed on the "Cisco-Guest" VLAN
• Port security is enabled to limit unauthorized access to the network
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Diagnostics
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• Customers can connect diagnostic devices to monitor traffic on other switches (configurable using Cisco Network Assistant only)
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Server
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• Can be classified as trusted, critical, business, or standard server:
• Trusted: For use with the Cisco Unified Communications 500 Series; same QoS setting as voice (VoIP traffic is prioritized)
• Critical: For critical servers with QoS set higher than default
• Business: Default setting; QoS set higher than desktop Internet traffic
• Standard: For servers set to the same level as regular desktop Internet traffic. Configurable VLAN port security is enabled to limit unauthorized access to the network
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Video surveillance
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• Configured for optimal connection to a video surveillance camera such as the Cisco PVC2300 Business Internet Video Camera
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Printer
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• QoS settings are the same as for Desktop, Access Point, and Standard Server
• Configurable VLAN
• Port security is enabled to limit unauthorized access to the network
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Other
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• Allows for flexible connectivity of nonspecified devices
• Configurable VLAN
• No security
• No QoS policy
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Security
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SSL
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Encrypts all HTTP traffic, allowing secure access to the browser-based management GUI in the switch
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IEEE 802.1X
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RADIUS authentication, MD5 hash; guest VLAN; single/multiple host mode
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ACLs
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Filtering or rate limiting of traffic flows based on Layer 2, Layer 3, or Layer 4 access control parameters (ACPs).
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Quality of Service (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/type of service (ToS)/differentiated services code point (DSCP) based
• Differentiated Services (DiffServ)
• Classification and re-marking ACLs
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Rate limiting
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Ingress policer; egress rate control; per VLAN
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Availability
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Link aggregation
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Using IEEE 802.3ad Link Aggregation Control Protocol (LACP), up to 8 ports in up to 8 groups
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Storm control
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Broadcast, multicast, and unknown unicast
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Denial-of-service (DoS) prevention
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DoS attack prevention
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IGMP (versions 1 and 2) snooping
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IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 256 multicast groups
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Power redundancy
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Connection to redundant power supply unit for power redundancy
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Management
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ESW500 Switch Configuration Utility
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Built-in browser-based utility for easy device configuration (HTTP/HTTPS). Supports configuration, system dashboard, and system maintenance and monitoring.
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Cisco Configuration Assistant
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Allows device configuration and system management for streamlined integration with Cisco Smart Business Communications System and other Cisco Small Business Series products
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Simple Network Management Protocol (SNMP)
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SNMP versions 1, 2c, and 3 with support for traps
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Device discovery
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Cisco Discovery Protocol
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Auto configuration
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Switch configuration file download through Dynamic Host Configuration Protocol (DHCP)
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Remote Monitoring (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/HTTPS) and Trivial File Transfer Protocol (TFTP)
Cisco Configuration Assistant upgrade
Dual images for resilient firmware upgrades
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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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Power over Ethernet Specifications
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ESW-520-8P
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ESW-520-24P
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ESW-520-48P
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ESW-540-8P
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ESW-540-24P
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IEEE 802.3af PoE delivered over any of the RJ-45 ports within the listed power budgets
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Maximum power of 15.4W to any 10/100 port; 60W total
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Maximum power of 15.4W to any 10/100 port; 180W total
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Maximum power of 15.4W to any 10/100 port; 370W total
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Maximum power of 15.4W to any 10/100/1000 port; 123W total
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Maximum power of 15.4W to any 10/100/1000 port; 280W total
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Ports
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• ESW-520-8P: 8 RJ-45 connectors for 10BASE-T/100BASE-TX; one 10BASE-T/100BASE-TX/1000BASE-T port; 1 combo SFP slot
• ESW-520-24 and ESW-520-24P: 24 RJ-45 connectors for 10BASE-T/100BASE-TX; two 10BASE-T/100BASE-TX/1000BASE-T ports; 2 combo SFP slots
• ESW-520-48 and ESW-520-48P: 48 RJ-45 connectors for 10BASE-T/100BASE-TX; two 10BASE-T/100BASE-TX/1000BASE-T ports; 2 SFP slots
• ESW-540-8P: 8 RJ-45 connectors for 10BASE-T/100BASE-TX/1000BASE-T; one 10BASE-T/100BASE-TX/1000BASE-T port; 1 combo SFP slot
• ESW-540-24 and ESW-540-24P: 24 RJ-45 connectors for 10BASE-T/100BASE-TX/1000BASE-T with 4 Gigabit combo SFP slots
• ESW-540-48: 48 RJ-45 connectors for 10BASE-T/100BASE-TX/1000BASE-T with 4 combo Gigabit SFP slots
All units: Console port; automatic medium dependent interface (MDI) and MDI crossover (MDI-X); auto negotiate/manual setting; port for connecting to redundant power supply unit
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Buttons
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Reset button
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Cabling type
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Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; 1000BASE-T recommended
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LEDs
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Power, Fan, Link/Activity, PoE, Speed, Redundant Power Supply (not available on ESW-520-8P and ESW-540-8P)
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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
• 802.3ad LACP
• 802.3af PoE
• 802.1D Spanning Tree Protocol (STP)
• 802.1Q/p VLAN
• 802.1w Rapid STP
• 802.1s Multiple STP
• 802.1X port access authentication
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Environmental
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Dimensions
W x D x H
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• 24- and 48-port models: 17.32 x 14.70 x 1.73 in. (440 x 375 x 44 mm)
• 8-port models: 8.66 x 6.70 x 1.72 in. (220 x 170 x 44 mm)
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Unit weight
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• ESW-520-8P: 2.25 lb (1.02 kg)
• ESW-520-24: 4.41 lb (2 kg)
• ESW-520-24P: 4.91 lb (2.23 kg0
• ESW-520-48: 4.83 lb (2.19 kg)
• ESW-520-48P: 6.01 lb (2.73 kg)
• ESW-540-8P: 2.25 lb (1.02 kg)
• ESW-540-24: 4.77 lb (2.16 kg)
• ESW-540-24P: 5.72 lb (2.60 kg)
• ESW-540-48: 4.91 lb (2.23 kg)
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Power
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• 24- and 48-port models: 100-240V 47-63 Hz, internal, universal; also equipped with external redundant power supply connector for external power supply, -48V DC
• ESW-520-8P: Universal 100-240VAC 50-60 Hz, external 80W power adapter, 48VDC
• ESW-540-8P: Universal 100-240VAC 50-60 Hz, external 150W power adapter, 48VDC
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Certifications
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• 24- and 48-port models: UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
• 8-port models: UL, cUL(UL60950-1, CSA (CSA22.2), CB(IEC60950-1), FCC Part 15B (CFR47) Class A, CE mark, C-tick
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Operating temperature
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32° to 104°F (0° to 40°C)
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Storage temperature
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-4° to 158°F (-20° to 70°C)
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Operating humidity
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10% to 90%, relative, noncondensing
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Storage humidity
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10% to 95%, relative, noncondensing
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Predicted mean time between failures (MTBF)
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• ESW-520-8P: 393,993 hours
• ESW-520-24: 308,559 hours
• ESW520-24P: 167,937 hours
• ESW-520-48: 155,680 hours
• ESW-520-48P: 88,810 hours
• ESW-540-8P: 393,993 hours
• ESW-540-24: 173,700 hours
• ESW-540-24P: 100,086 hours
• ESW-540-48: 93,480 hours
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Acoustic noise
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Model
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Fan (Number/Speed)
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Under 35° Celsius
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ESW-520-8P
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Fanless
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ESW-520-24
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1/6000 rpm
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40.6 dB
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ESW-520-24P
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2/9000 rpm
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50 dB
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ESW-540-8P
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Fanless
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ESW-540-24
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2/6000 rpm
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