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320.00 $ 21 405,82 P
Артикул: WS-C2970G-24TS
Управляемый коммутатор L2, 24 порта 10/100/1000BASE-T, 4 порта 1000BASE-X (SFP), фильтрация L2-L4
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Product Features and Benefits




Ease of Use and Ease of Deployment

• Express Setup simplifies initial configuration via a Web browser, eliminating the need for more complex terminal emulation programs and CLI knowledge.
• DHCP autoconfiguration of multiple switches through a boot server eases switch deployment.
• AutoQoS simplifies QoS configuration in VoIP networks by issuing interface and global switch commands to detect Cisco IP phones, classify traffic, and enable egress queue configuration.
• Autosensing detects the speed of the attached device and automatically configures each 10/100/1000 port for 10-, 100-, or 1000-Mbps operation, easing switch deployment in mixed 10, 100, and 1000BASE-T environments.
• Autonegotiating on 10/100/1000 ports automatically selects half- or full-duplex transmission mode to optimize bandwidth.
• Speed Autonegotiate allows users to only advertise 10/100 Mbps speeds on 10/100/1000 Mbps capable ports
• Dynamic Trunking Protocol (DTP) enables dynamic trunk configuration across all switch ports.
• Port Aggregation Protocol (PAgP) automates the creation of Cisco Fast EtherChannel ® groups or Gigabit EtherChannel groups to link to another switch, router, or server.
• Link Aggregation Control Protocol (LACP) allows the creation of Ethernet channeling with devices that conform to IEEE 802.3ad. This feature is similar to Cisco EtherChannel technology and PAgP.
• Auto-media-dependent interface crossover (MDIX) automatically adjusts transmit and receive pairs if an incorrect cable type (crossover or straight-through) is installed on a 10/100/1000 port.
• IEEE 802.3z-compliant 100BASE-FX, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, and 1000BASE-T physical interface support through a field-replaceable SFP module provides unprecedented flexibility in switch deployment.
• DHCP Relay allows a DHCP relay agent to broadcast DHCP requests to the network DHCP server.
• The default configuration stored in Flash memory ensures that the switch can be quickly connected to the network and can pass traffic with minimal user intervention.

Availability and Scalability

Superior Redundancy for Fault Backup

• Cisco UplinkFast and BackboneFast technologies help to ensure quick failover recovery, enhancing overall network stability and reliability.
• IEEE 802.1w Rapid Spanning-Tree Protocol (RSTP) provides rapid spanning-tree convergence independent of spanning-tree timers.
• Per-VLAN Rapid Spanning-Tree (PVRST+) allows rapid spanning-tree reconvergence on a per-VLAN spanning-tree basis, without requiring the implementation of spanning-tree instances.
• Unidirectional Link Detection (UDLD) and Aggressive UDLD allow unidirectional links to be detected and disabled to avoid problems such as spanning-tree loops.
• Switch port autorecovery (errdisable) automatically attempts to re-enable a link that is disabled due to a network error.
• Cisco RPS 675 support provides superior power-source redundancy for up to 6 Cisco networking devices, resulting in improved fault tolerance and network uptime.
• Bandwidth aggregation of up to 8 Gbps through Gigabit EtherChannel technology enhances fault tolerance and offers higher-speed aggregated bandwidth between switches, and to routers and individual servers. Integrated Cisco IOS Software features for bandwidth optimization
• Per-port broadcast, multicast, and unicast storm control prevents faulty end stations from degrading overall systems performance.
• IEEE 802.1d Spanning-Tree Protocol support for redundant backbone connections and loop-free networks simplifies network configuration and improves fault tolerance.
• PVST+ allows for Layer 2 load sharing on redundant links to efficiently use the extra capacity inherent in a redundant design.
• IEEE 802.1s Multiple Spanning-Tree Protocol (MSTP) allows a spanning-tree instance per VLAN, enabling Layer 2 load sharing on redundant links.
• Local Proxy Address Resolution Protocol (ARP) works in conjunction with Private VLAN Edge to minimize broadcasts and maximize available bandwidth.
• VLAN1 minimization allows VLAN1 to be disabled on any individual VLAN trunk link.
• VLAN Trunking Protocol (VTP) pruning limits bandwidth consumption on VTP trunks by flooding broadcast traffic only on trunk links required to reach the destination devices.
• Internet Group Management Protocol (IGMP) snooping provides fast client joins and leaves of multicast streams and limits bandwidth-intensive video traffic to only the requestors.
• Multicast VLAN Registration (MVR) continuously sends multicast streams in a multicast VLAN while isolating the streams from subscriber VLANs for bandwidth and security reasons.
• FlexLink is a Layer 2 availability feature that can co-exist with spanning tree. FlexLink allows convergence time of less than 50 milliseconds on switch uplink ports and remains consistent regardless of the number of VLANs or MAC addresses configured on those ports.


Advanced QoS


• 802.1p CoS and DSCP field classification are provided, using marking and reclassification on a per-packet basis by source and destination IP address, source and destination MAC address, or Layer 4 TCP/UDP port number.
• Cisco control-plane and data-plane QoS ACLs on all ports help to ensure proper marking on a per-packet basis.
• 4 egress queues per port enable differentiated management of up to 4 traffic types
• Shaped Round Robin scheduling helps to ensure differential prioritization of packet flows by intelligently servicing the ingress and egress queues.
• Weighted Tail Drop (WTD) provides congestion avoidance at the ingress and egress queues before a disruption occurs.
• Strict priority queuing guarantees that the highest-priority packets are serviced ahead of all other traffic.
• There is no performance penalty for highly granular QoS functions. Granular rate limiting
• The Cisco Committed Information Rate (CIR) function guarantees bandwidth in increments as low as 8 Kbps.
• Rate limiting is provided based on source and destination IP address, source and destination MAC address, Layer 4 TCP/UDP information, or any combination of these fields, using QoS ACLs (IP ACLs or MAC ACLs), class maps, and policy maps.
• Asynchronous data flows upstream and downstream from the end station or on an uplink are easily managed using ingress policing and egress shaping.
• Up to 64 aggregate or individual policers per Gigabit Ethernet port are allowed.


Network-wide Security Features

• IEEE 802.1x allows dynamic, port-based security, providing user authentication.
• IEEE 802.1x with VLAN assignment allows a dynamic VLAN assignment for a specific user, regardless of where the user is connected.
• IEEE 802.1x with voice VLAN permits an IP phone to access the voice VLAN, regardless of the authorized or unauthorized state of the port.
• IEEE 802.1x and port security are provided to authenticate the port and manage network access for all MAC addresses, including those of the client.
• IEEE 802.1x with an ACL assignment allows for specific identity-based security policies, regardless of where the user is connected.
• IEEE 802.1x with Guest VLAN allows guests without 802.1x clients to have limited network access on the Guest VLAN.
• Cisco security VLAN ACLs (VACLs) on all VLANs prevent unauthorized data flows from being bridged within VLANs.
• Port-based ACLs (PACLs) allow security policies to be applied on individual switch ports.
• SSH Protocol (v2), Kerberos, and SNMPv3 provide network security by encrypting administrator traffic during Telnet and SNMP sessions. SSH, Kerberos, and the cryptographic version of SNMPv3 require a special cryptographic software image due to U.S. export restrictions.
• Secure Sockets Layer (SSL) provides a secure means to use Web-based tools such as HTML-based device managers.
• Private VLAN Edge provides security and isolation between switch ports, helping to ensure that users cannot snoop on other users' traffic.
• Bidirectional data support on the Switched Port Analyzer (SPAN) port allows Cisco Secure Intrusion Detection System (IDS) to take action when an intruder is detected.
• TACACS+ and RADIUS authentication enable centralized control of the switch and restrict unauthorized users from altering the configuration.
• MAC address notification allows administrators to be notified of users added to or removed from the network.
• Port security secures the access to an access or trunk port based on the MAC address.
• After a specific timeframe, the aging feature removes the MAC address from the switch to allow another device to connect to the same port.
• Trusted boundary provides the ability to trust the QoS priority settings if an IP phone is present and to disable the trust settings if the IP phone is removed, preventing a malicious user from overriding prioritization policies in the network.
• Multilevel security on console access prevents unauthorized users from altering the switch configuration.
• The user-selectable address-learning mode simplifies configuration and enhances security.
• BPDU Guard shuts down Spanning-Tree Protocol PortFast-enabled interfaces when BPDUs are received to avoid accidental topology loops.
• Spanning-Tree Root Guard (STRG) prevents edge devices not in the network administrator's control from becoming Spanning-Tree Protocol root nodes.
• IGMP filtering provides multicast authentication by filtering out non-subscribers, and limits the number of concurrent multicast streams available per port.
• Dynamic VLAN assignment is supported through implementation of the VLAN Membership Policy Server (VMPS) client function to provide flexibility in assigning ports to VLANs. Dynamic VLAN enables the fast assignment of IP addresses.
• 1000 security access control entries are supported.


Superior Manageability

• Cisco IOS CLI support provides a common user interface and command set with all Cisco routers and Cisco Catalyst desktop switches.
• Cisco Service Assurance Agent (SAA) support facilitates service-level management throughout the LAN.
• VLAN trunks can be created from any port, using either standards-based 802.1Q tagging or the Cisco Inter-Switch Link (ISL) VLAN architecture.
• Up to 1005 VLANs per switch and up to 128 spanning-tree instances per switch are supported.
• 4096 VLAN IDs are supported.
• Voice VLAN simplifies telephony installations by keeping voice traffic on a separate VLAN for easier administration and troubleshooting.
• Cisco VTP supports dynamic VLANs and dynamic trunk configuration across all switches.
• IGMP snooping provides fast client joins and leaves of multicast streams and limits bandwidth-intensive video traffic to only the requestors.
• Remote Switch Port Analyzer (RSPAN) allows administrators to remotely monitor ports in a Layer 2 switch network from any other switch in the same network.
• For enhanced traffic management, monitoring, and analysis, the Embedded Remote Monitoring (RMON) software agent supports 4 RMON groups (history, statistics, alarms, and events).
• Layer 2 traceroute eases troubleshooting by identifying the physical path that a packet takes from source to destination.
• All 9 RMON groups are supported through a SPAN port, which permits traffic monitoring of a single port, a group of ports from a single network analyzer, or RMON probe.
• The Domain Name System (DNS) provides IP address resolution with user-defined device names.
• Trivial File Transfer Protocol (TFTP) reduces the cost of administering software upgrades by downloading from a centralized location.
• Network Timing Protocol (NTP) provides an accurate and consistent timestamp to all intranet switches.
• Multifunction LEDs per port for port status; half-duplex and full-duplex mode; 10-, 100-, and 1000-BASE-T indication; and switch-level status LEDs for system, redundant-power supply, and bandwidth utilization provide a comprehensive and convenient visual management system.

Cisco Network Assistant

• Cisco Network Assistant is a no-charge Windows-based application that simplifies the administration of networks of up to 250 users. It supports a wide range of Cisco Catalyst intelligent switches. With Cisco Network Assistant, users can manage Cisco Catalyst switches and launch the device managers of Cisco Integrated Services Routers and Cisco Aironet wireless LAN access points.
• The easy-to-use graphical interface provides both a topology map and front-panel view of the community and stacks.
• Cisco AVVID (Architecture for Voice, Video, and Integrated Data) wizards need just a few user inputs to automatically configure the switch to optimally handle different types of traffic: voice, video, multicast, and high-priority data.
• A security wizard is provided to restrict unauthorized access to applications, servers, and networks.
• Upgrading the Cisco IOS software on Cisco Catalyst switches is a simple matter of drag-and-drop upgrades.
• Cisco Network Assistant supports multilayer feature configurations such as routing protocols, ACLs, and QoS parameters
• Multi-device and multi-port configuration capabilities allow administrators to save time by configuring features across multiple switches and ports simultaneously.
• The user-personalized interface allows modification of polling intervals, table views, and other settings
• Alarm notification provides automated e-mail notification of network errors and alarm thresholds.

Express Setup

• Express Setup simplifies initial configuration of a switch through a Web browser, eliminating the need for more complex terminal emulation programs and CLI knowledge.
• The Web interface enables less-skilled personnel to quickly and simply set up switches, thereby reducing the cost of deployment.

CiscoWorks Support

• CiscoWorks network-management software provides management capabilities on a per-port and per-switch basis, providing a common management interface for Cisco routers, switches, and hubs.
• SNMP v1, v2c, and v3 and Telnet interface support deliver comprehensive in-band management, and a CLI-based management console provides detailed out-of-band management.
• Cisco Discovery Protocol versions 1 and 2 enable a CiscoWorks network-management station for automatic switch discovery.

Hardware Specification




• 32 Gbps switching fabric
• Forwarding bandwidth: 28 Gbps (Cisco Catalyst 2970G-24TS), 24 Gbps (Cisco Catalyst 2970G24T)
• Forwarding rate based on 64-byte packets: 38.7 Mpps (Cisco Catalyst 2970G-24TS), 35.7 Mpps (Cisco Catalyst 2970G-24T)
• 128 MB DRAM and 16 MB Flash memory
• Configurable up to 8192 MAC addresses
• Configurable up to 1000 IGMP groups and bridging entries
• Configurable maximum transmission unit (MTU) of up to 9018 bytes (jumbo frames) for bridging on Gigabit Ethernet ports, and up to 1546 bytes for bridging on Fast Ethernet ports

Connectors and Cabling

• 10BASE-T ports: RJ-45 connectors; 2-pair Category 3, 4, or 5 unshielded twisted-pair (UTP) cabling
• 100BASE-TX ports: RJ-45 connectors; 2-pair Category 5 UTP cabling
• 1000BASE-T ports: RJ-45 connectors; 2-pair Category 5 UTP cabling
• 1000BASE-T SFP-based ports: RJ-45 connectors, 2-pair Category 5 UTP cabling
• 1000BASE-SX, -LX/LH, -ZX, and CWDM SFP-based ports: LC fiber connectors (single-mode or multimode fiber)
• Management console port: RJ-45-to-DB9 cable for PC connections

Power Connectors

Customers can provide power to a switch by using either the internal power supply or the Cisco RPS 675. The connectors are located at the back of the switch.

Internal Power Supply Connector

• The internal power supply is an autoranging unit.
• The internal power supply supports input voltages between 100 and 240 VAC.
• Use the supplied AC power cord to connect the AC power connector to an AC power outlet.

Cisco RPS 675 Connector

• Offers connection for an optional Cisco RPS 675 that uses AC input and supplies DC output to the switch.
• Offers a 675W RPS that supports up to 6 external network devices and provides power to 1 failed device at a time.
• Automatically senses when the internal power supply of a connected device fails and provides power to the failed device, preventing loss of network traffic.
• Only the Cisco RPS 675 (model PWR675-AC-RPS-N1=) should be attached to the RPS receptacle.


• Per-port status LEDs: link integrity, disabled, activity, speed, and full-duplex indications
• System-status LEDs: system, RPS, and bandwidth-utilization indications

(H x W x D)

• 2.59 x 17.5 x 11.6 in. (6.59 x 44.5 x 29.5 cm) (Cisco Catalyst 2970G-24TS)
• 1.73 x 17.5 x 12.83 in. (4.39 x 44.5 x 32.6 cm) (Cisco Catalyst 2970G-24T)


• 12.5 lb (5.68 kg) (Cisco Catalyst 2970G-24TS)
• 10 lb (4.55 kg) (Cisco Catalyst 2970G-24T)

Environmental Ranges

• Operating temperature: 32 to 113ºF (0 to 45ºC)
• Storage temperature: -13 to 158ºF (-25 to 70ºC)
• Operating relative humidity: 10 to 85 percent (noncondensing)
• Operating altitude: Up to 10,000 ft (3049 m)
• Storage altitude: Up to 15,000 ft (4573 m)

Acoustic Noise

• International Organization for Standardization (ISO) 7779: Bystander position operating to an ambient temperature of 30ºC
• Cisco Catalyst 2970G-24TS: 42 dB
• Cisco Catalyst 2970G-24T: 42 dB

Predicted Mean Time Between Failure (MTBF)

• 163,222 hrs (Cisco Catalyst 2970G-24TS)
• 219,108 hrs (Cisco Catalyst 2970G-24T)


Power Specification




Power Consumption

• 190W (maximum), 650 Btus per hour (Cisco Catalyst 2970G-24TS)
• 160W (maximum), 545 Btus per hour (Cisco Catalyst 2970G-24T)

AC Input Voltage/Frequency

100-240 VAC (autoranging), 50 to 60 Hz

Power Rating

• 0.190kVA (Cisco Catalyst 2970G-24TS)
• 0.165kVA (Cisco Catalyst 2970G-24T)

DC Input Voltages

• RPS input
• +12V at 17A (Cisco Catalyst 2970G-24TS)
• +12V at 13A (Cisco Catalyst 2970G-24T)


Коммутаторы Cisco Catalyst 2970 - новое направление в модельном ряде коммутаторов Cisco Catalyst 2940, 2950, 3550 и 3750. Серия Cisco 2970 включает в себя доступные коммутаторы с интерфейсами Gigabit Ethernet, предоставляющие интеллектуальные сервисы в небольших, средних сетях и в региональных офисах.    Коммутаторы Catalyst 2970 позволяют выйти на новый уровень производительности, используя существующую кабельную систему категории 5. Серия Catalyst 2970 рассчитана на использование с расширенным программным обеспечением ( Enhanced Image IOS® Software ), которое обеспечивает полномасштабный многоуровневый сервис для обеспечения услуг безопасности, качества обслуживания (QoS) и одновременно обеспечивает работу традиционной коммутации L2.  
Основные особенности:
  • Catalyst 2970 облегчает  переход на  Gigabit  Ethernet, используя существующую кабельную систему категории 5. 
  • Высокая безопасность: поддерживаются протокол 802.1x, функциональность Identity-Based Networking Services (IBNS), Private VLAN Edge,  Port Security,  аппаратная реа-лизация списков доступа (ACL) на 2, 3 и 4 уровнях.  Для обеспечения  безопасности ри администрировании поддерживаются протоколы SSH,  SNMPv3, а также  централизованная аутентификация на серверах TACACS+ и RADIUS. 
  • Высокая доступность: для защиты от сбоев внутренних блоков питания коммутаторы Catalyst 2970  могут  быть  подключены к  системе  Cisco  Redundant  Power  System(RPS) 675. Помимо стандартного протокола Spanning Tree поддерживаются дополнительные функции, оптимизирующие его работу, – UplinkFast, PortFast, BackboneFast, также поддерживаются протоколы 802.1w, 802.1s и др. 
  • Расширенная  поддержка  качества обслуживания (QoS): классификация трафика по полям  DSCP или  802.1p (CoS), а также по исходным и конечным MAC,  IP адресам или  портам  TCP/UDP,  приоритетная очередность и очередность SRR, ограничение полосы пропускания, функция AutoQoS. 
  • Удобное управление: новая функциональность Express Setup позволяет настраивать коммутатор  через  web - интерфейс,  что упрощает  первоначальную  настройку. ПО Cisco Cluster Management Suite (CMS) позволяет конфигурировать через web - интерфейс одновременно до 16 коммутаторов, предоставляя средства их пошаговой настройки и оптимизации генерируемой конфигурации под конкретные задачи.
В комплект входит:
- коммутатор б.у., тщательно протестированный, гарантия 3 месяца
- кабель питания
- упаковка
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Коммутатор Cisco Catalyst WS-C2970G-24TS-E
Артикул: WS-C2970G-24TS
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320.00 $ 21 405,82 P
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Компания ООО «100 Гигабит» предоставляет три вида гарантийного обслуживания:

1. Новое оборудование. Мы транслируем гарантию производителя покупателю. Если, например, гарантийный срок на новое оборудование составляет 1 год, то действовать он начинает в момент приобретения оборудования нашим покупателем. В случае наступления гарантийного случая, обращения осуществляются в нашу компанию, либо в авторизованный сервисный центр производителя.

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