Коммутатор Catalyst Express 500 Series WS-CE500-24PC (WS-CE500-24PC)

Коммутаторы Cisco Catalyst Express 500 серии - это линейка управляемых автономных устройств с фиксированной конфигурацией, обеспечивающих высокую скорость и совместимость с Fast Ethernet и Gigabit Ethernet, обеспечивая улучшенные сетевые службы для бизнес-клиентов, имеющих до 250 сотрудников. Коммутаторы Cisco Catalyst Express 500 серии предлагают встроенную безопасность, качество обслуживания (QoS), и возможности, оптимизированные для интеграции с беспроводной сетью Cisco (WLAN), безопасностью и решениями IP-телефонии.

Технические характеристики:

Feature	Description
Performance
DRAM/flash memory	32MB DRAM 16MB flash memory
Switching capacity	8.8 Gbps for Cisco Catalyst Express 500-24TT, Cisco Catalyst Express 500-24LC, and Cisco Catalyst Express 500-24PC 24 Gbps for Cisco Catalyst Express 500G-12TC
Forwarding rate	6.6-Mpps wire-speed performance for Cisco Catalyst Express 500-24TT, Cisco Catalyst Express 500-24LC, and Cisco Catalyst Express 500-24PC 18-Mpps wire-speed performance for Cisco Catalyst Express 500G-12TC
Layer 2 Switching
Spanning Tree Protocol	Fast convergence using 802.1w, enabled by default Portfast: supported on: "Desktop," "Phone + Desktop," "Printer," and "Server" Smartports roles
MAC addresses	8000 MAC addresses
Virtual LANs (VLANs)	Up to 32 VLANs (1000 range) and support for 802.1Q trunking using Cisco Smartports
Number and type of queues	4 queues per port • Shaped Round Robin (SRR) queuing • Support for DSCP and CoS using Cisco Smartports
Port grouping	Support for Cisco EtherChannel® and IEEE 802.3ad • Up to 6 groups • Up to 8 ports per group
Smartports (Preset Cisco Recommended Network Enhancements, QoS, and Security)
Desktop	• Optimized for desktop connectivity • Configurable VLAN setting • Port security enabled to limit unauthorized access to the network
IP Phone + Desktop	• Optimized QoS for IP Phone + Desktop configurations • Voice traffic is placed on "Cisco-Voice" VLAN • Configurable data VLAN • QoS level assures Voice-over-IP (VoIP) traffic takes precedence • Port security enabled to limit 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 a backbone switch for fast convergence • Enables 802.1Q trunking
Access Point	• Configured for optimal connection to a wireless access point • Configurable VLAN
Server	Can be classified as trusted, critical, business, or standard server: • Trusted: for use with Cisco CallManager Express, same QoS setting as Voice (VoIP traffic is prioritized) • Critical: for critical servers with QoS set higher than default • Business: default setting; QoS higher than desktop Internet traffic • Standard: for servers set to same level as regular desktop Internet traffic Configurable VLAN Port security enabled to limit unauthorized access to the network
Printer	• QoS settings for "Printer" are the same as "Desktop," "Access Point," and "Standard Server" • Configurable VLAN • Port security enabled to limit unauthorized access to the network
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 enabled to limit unauthorized access to the network
Other	• "Other" Smartports role allows for flexible connectivity of nonspecified devices • Configurable VLAN • No security • No QoS policy
Diagnostic	Customers can connect diagnostics devices to monitor traffic on other switches (configurable using Cisco Network Assistant only)
Security
SSL	SSL support: encrypts all HTTP traffic, allowing secure access to the browser-based management GUI in the switch
Security policy slider	Three security levels: low, medium, and high (configurable using Cisco Network Assistant only): • Low: for business environments where there is limited guest access; limited number of devices are allowed per port • Medium: for business environments where security is important; only authorized devices (by MAC address) are allowed on the company network • High: for business environments where security is critical; only authorized devices (by MAC address) and authenticated users (using IEEE 802.1x) are allowed on the company network
Multicast	• High-bandwidth video traffic is optimized so that it does not affect other applications on the network. • Internet Group Management Protocol (IGMP) (v1, v2, and v3) snooping: IGMP snooping constrains multicast traffic at Layer 2 by configuring Layer 2 LAN ports dynamically to forward multicast traffic only to those ports that want to receive it.
Product Specifications
Inline power (PoE)	• All 24 PoE ports on the Cisco Catalyst Express 500-24PC can supply up to 15.4W (IEEE 802.3af standard maximum) of power over Category 5 cable, for a total of 370W of inline power. • All 4 PoE ports on Cisco Catalyst Express 500-24LC switches can supply up to 15.4W of power over Category 5 cable, for a total of 62W of inline power. • Both the IEEE 802.3af PoE standard and Cisco prestandard inline power are supported.
Supported SFPs	• 100BASE-BX-10D • 100BASE-BX-10U • 100BASE-FX-FE • 100BASE-FX-GE • 100BASE-LX • 1000BASE-LX/LH • 1000BASE-SX
Standards and Cisco features supported	• Broadcast suppression • Cisco Discovery Protocol Version 2 • IEEE 802.1d Spanning Tree Protocol • IEEE 802.1p CoS classification • IEEE 802.1q VLAN • IEEE 802.1w Rapid Convergence Spanning Tree Protocol • IEEE 802.1x Port Access Authentication • IEEE 802.3ad Link Aggregation Control Protocol (LACP) • IEEE 802.3af PoE • IEEE 802.3x full duplex on 10BASE-T, 100BASE-TX, and 1000BASE-T ports • IEEE 802.3 10BASE-T • IEEE 802.3u 100BASE-T/TX • IEEE 802.3ab 1000BASE-T • IEEE 802.3z 1000BASE-X • IGMP (v1, v2, and v3) snooping • Per VLAN Spanning Tree • Per VLAN Spanning Tree Plus • Per VLAN Rapid Spanning Tree Plus • PortFast • RADIUS • SSL • SNMPv3 • UDLD • VLAN Trunking Protocol (VTP)* (transparent mode only)
Management	• RFC1213-MIB (MIB II) • RMON-MIB (statistics, history, alarms, and events groups only) • CISCO-PRODUCTS-MIB • CISCO-SYSLOG-MIB • CISCO-ENVMON-MIB • BRIDGE-MIB • ENTITY-MIB • ETHERNET-MIB • E-911 MIB support • IF-MIB • Device Manager: device-level GUI • Embedded GUI • Available in localized languages: Japanese, Chinese, French, Italian, German, and Spanish • Cisco Network Assistant: network management tool • Free download at www.cisco.com/en/US/products/ps5931/index.html • Available in localized languages (Coming in Q3 2006): Japanese, Chinese, French, Italian, German, and Spanish
Connectors and cabling	• 10/100BASE-TX ports: RJ-45 connectors; 2-pair Category 5 unshielded twisted pair (UTP) cabling • 10/100/1000BASE-T ports: RJ-45 connectors; 4-pair Category 5 UTP cabling • 1000BASE-SX, 1000BASE-LX/LH, 100BASE-FX, 100BASE-LX, and 100BASE-BX-based ports: LC fiber connectors (single-mode or multimode fiber)
Physical specifications	Dimensions (H x W x D): • 1.73 x 17.5 x 9.9 in. (4.39 x 44.45 x 25.15 cm) for Cisco Catalyst Express 500-24TT, Cisco Catalyst Express 500-24LC, and Cisco Catalyst Express 500G-12TC • 1.73 x 17.5 x 14.4 in. (4.39 x 44.45 x 36.58 cm) for Cisco Catalyst Express 500-24PC Weight: • 8 lb (3.7 kg) for Cisco Catalyst Express 500-24TT, Cisco Catalyst Express 500-24LC, and Cisco Catalyst Express 500G-12TC • 12 lb (5.5 kg) for Cisco Catalyst Express 500-24PC
Power requirements	Switch Model • Cisco Catalyst Express 500-24TT • Cisco Catalyst Express 500-24LC • Cisco Catalyst Express 500-24PC • Cisco Catalyst Express 500G-12TC	Power consumption (maximum): • 30W or 102 BTU per hour • 110W or 375 BTU per hour • 460W or 1570 BTU per hour • 45W or 154 BTU per hour	Power dissipation: • 30W • 45W • 90W • 45W
	AC input voltage: Catalyst Express 500-24TT: 100 to 240 VAC, 1.3-0.8 A (autoranging), 50 to 60 Hz Catalyst Express 500-24LC: 100 to 240 VAC, 2-1 A (autoranging), 50 to 60 Hz Catalyst Express 500-24PC: 100 to 240 VAC, 8-4 A (autoranging), 50 to 60 Hz Catalyst Express 500G-12TC: 100 to 240 VAC, 1.3-0.8 A (autoranging), 50 to 60 Hz
Environmental requirements	• Operating temperature: 32 to 113?F (0 to 45?C) • Storage temperature: -13 to 158?F (-25 to 70?C) • Operating relative humidity: 10 to 85% (noncondensing) • Operating altitude: up to 10,000 ft (3000m) • Storage altitude: up to 15,000 ft (4500m)
Predicted mean time between failure (MTBF)	• 308,482 hours or 35 years for Cisco Catalyst Express 500-24TT • 282,705 hours or 32 years for Cisco Catalyst Express 500-24LC • 211,167 hours or 24 years for Cisco Catalyst Express 500-24PC • 289,193 hours or 33 years for Cisco Catalyst Express 500G-12TC
Acoustic noise	• ISO 7770, bystander position: operating to an ambient temperature of 30?C • Cisco Catalyst Express 500-24TT, Cisco Catalyst Express 500-24LC, Cisco Catalyst Express 500G-12TC: 40dBa, Cisco Catalyst Express 500-24PC: 48dBa
Regulatory Agency Approvals
Safety certifications	• UL to UL 60950-1 • CUL to CAN/CSA C22.2 No. 60950-1 • TUV/GS to EN 60950-1 • CB to IEC 60950-1 with all country deviations • NOM to NOM-019-SCFI • CE marking
Electromagnetic compatibility certifications	• FCC Part 15 Class A • EN 55022 Class A (CISPR22) • EN 55024 (CISPR24) • VCCI Class A • AS/NZS CISPR22 Class A • MIC • China EMC requirements • GOST