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Cisco ESW52048P K9 10/100 PoE Switch

Teknik Özellikler

Performance
Switching capacity  
 17.6 Gbps
Forwarding capacity  
Forwarding rate based on 64-byte packets:
13 mpps
Flash
24- and 48-port models: 32 MB
DRAM   
128 MB
Layer 2 Switching
Spanning Tree   
 IEEE 802.1D Spanning Tree
 IEEE 802.1w Rapid Spanning Tree
 IEEE 802.1s Multiple Spanning Tree
 Fast linkover
VLANs   
 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)
Head-of-line (HOL) blocking  
HOL blocking prevention
Smartports (Preset Cisco Recommended Network Configuration, QoS, and Security)
Desktop   
 Optimized for desktop connectivity
 Configurable VLAN setting
 Port security enabled to prevent unauthorized access to the network
IP phone plus desktop   
 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
Router 
Configured for optimal connection to a router or firewall for WAN connectivity
Switch   
 Configured as an uplink port to another switch or router Layer 2 port for fast convergence
 Enables 802.1Q trunking
Access point   
 Configured for optimal connection to a wireless access point
 Configurable VLAN
Guest   
 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
Diagnostics   
 Customers can connect diagnostic devices to monitor traffic on other switches (configurable using Cisco Network Assistant only)
Server   
 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
Video surveillance   
 Configured for optimal connection to a video surveillance camera such as the Cisco PVC2300 Business Internet Video Camera
Printer  
 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
Other   
 Allows for flexible connectivity of nonspecified devices
 Configurable VLAN
 No security
 No QoS policy
Security
SSL   
Encrypts all HTTP traffic, allowing secure access to the browser-based management GUI in the switch
IEEE 802.1X   
RADIUS authentication, MD5 hash; guest VLAN; single/multiple host mode
ACLs   
Filtering or rate limiting of traffic flows based on Layer 2, Layer 3, or Layer 4 access control parameters (ACPs).
Quality of Service (QoS)
Priority levels  
4 hardware queues
Scheduling   
Priority queuing and weighted round-robin (WRR)
Class of service   
 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
Rate limiting   
Ingress policer; egress rate control; per VLAN
Availability
Link aggregation   
Using IEEE 802.3ad Link Aggregation Control Protocol (LACP), up to 8 ports in up to 8 groups
Storm control   
Broadcast, multicast, and unknown unicast
Denial-of-service (DoS) prevention  
DoS attack prevention
IGMP (versions 1 and 2) snooping   
IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 256 multicast groups
Power redundancy   
Connection to redundant power supply unit for power redundancy
Management
ESW500 Switch Configuration Utility   
Built-in browser-based utility for easy device configuration (HTTP/HTTPS). Supports configuration, system dashboard, and system maintenance and monitoring.
Cisco Configuration Assistant   
Allows device configuration and system management for streamlined integration with Cisco Smart Business Communications System and other Cisco Small Business Series products
Simple Network Management Protocol (SNMP)   
SNMP versions 1, 2c, and 3 with support for traps
Device discovery   
Cisco Discovery Protocol
Auto configuration  
Switch configuration file download through Dynamic Host Configuration Protocol (DHCP)
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/HTTPS) and Trivial File Transfer Protocol (TFTP)
Cisco Configuration Assistant upgrade
Dual images for resilient firmware upgrades
Port mirroring   
Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe
Power over Ethernet Specifications            
IEEE 802.3af PoE delivered over any of the RJ-45 ports within the listed power budgets     
Maximum power of 15.4W to any 10/100 port; 370W total   
Ports
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
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
Buttons   
Reset button
Cabling type   
Unshielded twisted pair (UTP) Category 5 or better for 10BASE-T/100BASE-TX; 1000BASE-T recommended
LEDs  
Power, Fan, Link/Activity, PoE, Speed, Redundant Power Supply (not available on ESW-520-8P and ESW-540-8P)
Standards  
 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
Environmental
Dimensions
W x D x H  
 24- and 48-port models: 17.32 x 14.70 x 1.73 in. (440 x 375 x 44 mm)
Unit weight   
6.01 lb (2.73 kg)
Power  
 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
Certifications   
 24- and 48-port models: UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
Operating temperature   
32° to 104°F (0° to 40°C)
Storage temperature   
-4° to 158°F (-20° to 70°C)
Operating humidity   
10% to 90%, relative, noncondensing
Storage humidity   
10% to 95%, relative, noncondensing
Predicted mean time between failures (MTBF)  
 88,810 hours
 

Teknik Kısa

PoE : PoE
Port Hızı : 100 Mbps
Yönetilebilirlik : Yönetilebilir Layer 2
Aktarım Port Sayısı : 4
Aktarım Türü : Combo
PoE Port Sayısı : Tooltip 48 Port
PoE Güç Bütçesi : 200-400 Watt
Montaj Tipi : Rack Mount