Cisco Catalyst 2970 Series Switch

Cisco Catalyst 2970 Series Switch
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Data Sheet
The Cisco® Catalyst® 2970 Series Switches are affordable Gigabit Ethernet switches that deliver wire-speed intelligent services for small and medium businesses and enterprise branch offices. Featuring a complete set of intelligent services, the Catalyst 2970 Series Switches can enhance network performance and increase productivity for today's knowledge workers by intelligently scaling beyond 100 Mbps over existing Category 5 copper cabling.
Figure 1. Cisco Catalyst 2970 Series Switches
The Cisco Catalyst 2970 Series is part of the industry's most complete range of stackable and standalone switches, including the Cisco Catalyst 2940, 2950, 2960, 3550, 3560, and 3750 Series Switches. Cisco's suite of fixed configuration switches provides Fast Ethernet and Gigabit Ethernet configurations with intelligent services to small and medium-sized businesses and enterprise branch offices.
Cisco fixed configuration switches are part of a larger family of Cisco Catalyst switches that include the Cisco Catalyst 6500 and 4500 Series modular switches. The entire family offers industry-leading performance, functionality, scalability, and flexibility.
CONFIGURATION
The following two configurations comprise the Cisco Catalyst 2970 Series:
• Cisco Catalyst 2970G-24TS-24 Ethernet 10/100/1000 ports and 4 small form-factor pluggable (SFP) ports
• Cisco Catalyst 2970G-24T-24 Ethernet 10/100/1000 ports
Available with Cisco Enhanced Image (EI) IOS ® Software, the Cisco Catalyst 2970 Series offers a complete set of intelligent multilayer services to deliver security, quality of service (QoS), and availability with the simplicity of traditional LAN switching. Features such as Identity Based Network Services and multilayer QoS capabilities bring security to the edge of the network while enabling applications such as IP telephony and real-time streaming multimedia.
GIGABIT ETHERNET
Today's knowledge workers are placing higher demands on their networks. They need to run multiple, concurrent applications, and to do this productively, these users require higher bandwidth from the network. For example, a worker joins a team conference call via IP videoconference, sends a 10-MB spreadsheet to meeting participants, broadcasts the latest marketing video for the team to evaluate, and queries the customer relationship management database for the latest real-time feedback. Meanwhile, the multi-gigabyte system backup starts in the background and the latest virus updates are pushed to the client. Bandwidth enhancement beyond 100 Mbps-enabled by Gigabit Ethernet-provides for a smoothly operating network with the ability to evolve.
Cisco makes the transition to Gigabit Ethernet faster and easier with standards-based solutions for both fiber and copper cabling. At speeds of 1000 Mbps, Gigabit Ethernet provides the bandwidth that networks need to meet new and evolving network demands, alleviate bottlenecks, and boost performance while increasing the return on existing infrastructure investments. Small and medium-sized networks with Cisco Catalyst 2950 Series switches deployed in the access layer will find the Cisco Catalyst 2970 Series a cost-effective switch platform with which to begin the migration to Gigabit Ethernet.
INTELLIGENCE IN THE NETWORK
As companies increasingly rely on the network as the strategic business infrastructure, and with end users having
1000Mbps at their disposal, it is more important than ever to consistently ensure network security, high availability, and QoS-from the desktop through the network core and out to the WAN.
Cisco Catalyst switches enable companies to realize the full benefits of adding intelligent services into their networks. These capabilities make the network infrastructure
• Secure to protect confidential information
• Highly available to deliver on time-critical needs
• Scalable to accommodate future growth
• Capable of differentiating and controlling traffic flows to handle the increasing number of critical business applications
ENHANCED SECURITY
With the wide range of security features that the Cisco Catalyst 2970 Series offers, businesses can protect important information, keep unauthorized people off of the network, guard privacy, and maintain uninterrupted operation.
The Identity-Based Networking Services (IBNS) feature in the Cisco Catalyst 2970 Series prevents unauthorized access and helps to ensure that users get only their designated privileges. It provides the ability to dynamically administer granular levels of network access. Using the 802.1x standard and the Cisco Secure Access Control Server (ACS), users can be assigned a virtual LAN (VLAN) or an ACL upon authentication, regardless of where they connect to the network. This allows IT departments to enable strong security policies without compromising user mobility-and with minimal administrative overhead.
To guard against denial-of-service and other attacks, ACLs can be used to restrict access to sensitive portions of the network, blocking unauthorized access to servers and applications, by denying packets based on source and destination MAC addresses, IP addresses, or Transmission Control Protocol/User Datagram Protocol (TCP/UDP) ports. ACL lookups are done in hardware, so forwarding performance is not compromised when implementing ACL-based security.
Port security can be used to limit access on an Ethernet port based on the MAC address of the device that is connected to it. It can also limit the total number of devices plugged into a switch port, reducing the risks of rogue wireless access points or hubs.
Secure Shell (SSH), Kerberos, and Simple Network Management Protocol Version 3 (SNMPv3) encrypt administrative and network management information, protecting the network from tampering or eavesdropping. Terminal Access Controller Access Control System (TACACS+) and Remote Access Dial-In User Service (RADIUS) authentication enable centralized access control of switches and restrict unauthorized users from altering the configurations. Alternatively, a local username and password database can be configured on the switch itself. Fifteen levels of authorization on the switch console and two levels on the Web-based management interface provide the ability to give different levels of configuration capabilities to different administrators.
The MAC Address Notification feature can be used to monitor the network and track users by sending an alert to a management station so that network administrators know when and where users entered the network. The Dynamic Host Configuration Protocol (DHCP) Interface Tracker (Option 82) feature tracks where a user is physically connected on a network by providing both the switch and the port ID to a DHCP server.
The Private VLAN Edge feature isolates ports on a switch, helping to ensure that traffic travels directly from the entry point to the aggregation device through a virtual path and cannot be directed to another port.
HIGH AVAILABILITY
The Cisco Catalyst 2970 Series offers several high-availability features to reduce network downtime, maintain mission-critical applications, and reduce total cost of ownership.
Enhancements to the standard Spanning-Tree Protocol, such as Per-VLAN Spanning-Tree Plus (PVST+), UplinkFast, and PortFast maximize network uptime. PVST+ allows for Layer 2 load sharing on redundant links to efficiently use the extra capacity inherent in a redundant design. UplinkFast, PortFast, and BackboneFast all greatly reduce the standard 30-to-60-second Spanning-Tree Protocol convergence time. Loop Guard and Bridge Protocol Data Unit (BPDU) Guard provide Spanning-Tree Protocol loop avoidance.
Customers can achieve maximum power availability for a converged voice and data network when a Cisco Catalyst 2970 Series Switch is combined with the Cisco Redundant Power System (RPS) 675 for seamless protection against internal power supply failures.
ADVANCED QOS
The Cisco Catalyst 2970 Series offers superior multilayer, granular QoS features to avoid congestion and help ensure that network traffic is properly classified and prioritized. Configuration of QoS is greatly simplified through
Automatic QoS (AutoQoS), a feature that detects Cisco IP phones and automatically configures switches for the appropriate classification and egress queuing. This optimizes traffic prioritization and network availability without the challenge of complex configuration.
The Cisco Catalyst 2970 Series can classify, police, mark, queue, and schedule incoming packets, and can queue and schedule packets at egress. Packet classification allows the network elements to discriminate between various traffic flows and to enforce policies based on Layer 2 and Layer 3 QoS fields.
To implement QoS, the Cisco Catalyst 2970 Series Switch first identifies traffic flows or packet groups, and classifies or reclassifies these groups using the Differentiated Services Code Point field (DSCP) or the 802.1p class-of-service (CoS) field. Classification can be based on criteria as specific as the source/destination IP address, source/destination MAC address, or the Layer 4 TCP/UDP port. At the ingress, the Cisco Catalyst 2970 will also police to determine whether a packet is in or out of profile, mark to change the classification label, pass through, or drop out of profile packets, queue packets based on classification, and service based on configured weights. Control plane and data plane ACLs are supported on all ports to ensure proper treatment on a per-packet basis. The Cisco Catalyst 2970 Series Switch supports four egress queues per port, which allows the network administrator to be discriminating and specific in assigning priorities for the various applications on the LAN. At egress, the switch performs scheduling and congestion control. Scheduling is a process that determines the order in which the queues are processed. The Cisco Catalyst 2970 Series Switch supports Shaped Round Robin (SRR) and strict priority queuing. The SRR queuing algorithm helps to ensure differential prioritization.
MANAGEMENT
The Catalyst 2970 series comes with an embedded GUI device manager that simplifies initial configuration of a switch. Users now have the option to set up the switch through a Web browser, eliminating the need for more complex terminal emulation programs and knowledge of the command-line interface (CLI). Cisco Smartports have preset Cisco recommended network configurations including quality of service, security, and multicast settings to allow for transparent integration of data, video, IP communications, and wireless LAN applications.
Users can also manage the Catalyst 2970 series with Cisco Network Assistant, an advanced PC-based network management application. Cisco Network Assistant offers centralized management and configuration of Cisco switches and other Cisco devices such as routers and wireless access points. With Cisco Network Assistant, in addition to configuring multiple switches at a time, you can configure Cisco wireless access points, and invoke the device manager on Cisco routers and access points. Software upgrades on Cisco switches, routers, and wireless access points are as easy as a drag-and-drop process. You can download Cisco Network Assistant (available at no cost) from the Cisco website http://cisco.com/go/cna.
In addition to Cisco Network Assistant, Cisco Catalyst 2970 Series switches provide for extensive management using SNMP network management platforms such as CiscoWorks for Switched Internetworks. Managed with CiscoWorks, Cisco Catalyst switches can be configured and managed to deliver end-to-end device, VLAN, traffic, and policy management. Coupled with CiscoWorks Cisco Resource Manager Essentials, a Web-based management tool, offers automated inventory collection, software deployment, easy tracking of network changes, views into device availability, and quick isolation of error conditions.
PRODUCT SPECIFICATIONS
Table 1. Product Features and Benefits
Feature
Benefit
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.
QoS
Advanced QoS
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• 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.
Security
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.
Manageability
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.
Table 2. Hardware
Description
Specification
Performance
• 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.
Indicators
• Per-port status LEDs: link integrity, disabled, activity, speed, and full-duplex indications
• System-status LEDs: system, RPS, and bandwidth-utilization indications
Dimensions (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)
Weight
• 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)
Table 3. Power Specification
Description
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)
Table 4. Management and Standards Support
Description
Specification
Management Information Base (MIB) Support
• BRIDGE-MIB (RFC1493)
• CISCO-CDP-MIB
• CISCO-CLUSTER-MIB
• CISCO-CONFIG-MAN-MIB
• CISCO-ENTITY-FRU-CONTROL-MIB
• CISCO-ENVMON-MIB
• CISCO-FLASH-MIB
• CISCO-FTP-CLIENT-MIB
• CISCO-IGMP-FILTER-MIB
• CISCO-IMAGE-MIB
• CISCO IP-STAT-MIB
• CISCO-MAC-NOTIFICATION-MIB
• CISCO-MEMORY-POOL-MIB
• CISCO-PAGP-MIB
• CISCO-PING-MIB
• CISCO-PROCESS-MIB
• CISCO-RTTMON-MIB
• CISCO-STP-EXTENSIONS-MIB
• CISCO-SYSLOG-MIB
• CISCO-TCP-MIB
• CISCO-VLAN-IFTABLE-RELATIONSHIP-MIB
• CISCO-VLAN-MEMBERSHIP-MIB
• CISCO-VTP-MIB
• ENTITY-MIB
• ETHERLIKE-MIB
• IF-MIB (in and out counters for VLANs are not supported)
• IGMP-MIB
• OLD-CISCO-CHASSIS-MIB
• OLD-CISCO-FLASH-MIB
• OLD-CISCO-INTERFACES-MIB
• OLD-CISCO-IP-MIB
• OLD-CISCO-SYS-MIB
• OLD-CISCO-TCP-MIB
• OLD-CISCO-TS-MIB
• RFC1213-MIB (per the agent capabilities specified in the CISCO-RFC1213-CAPABILITY.my)
• RFC1253-MIB
• RMON-MIB
• RMON2-MIB
• SNMP-FRAMEWORK-MIB
• SNMP-MPD-MIB
• SNMP-NOTIFICATION-MIB
• SNMP-TARGET-MIB
• SNMPv2-MIB
• TCP-MIB
• UDP-MIB
Standards
• IEEE 802.1s
• IEEE 802.1w
• IEEE 802.1x
• IEEE 802.3ad
• IEEE 802.3x full duplex on 10BASE-T, 100BASE-TX, and 1000BASE-T ports
• IEEE 802.1D Spanning-Tree Protocol
• IEEE 802.1p CoS Prioritization
• IEEE 802.1Q VLAN
• IEEE 802.3 10BASE-T specification
• IEEE 802.3u 100BASE-TX specification
• IEEE 802.3ab 1000BASE-T specification
• IEEE 802.3z 1000BASE-X specification
• 1000BASE-X (SFP)
• 1000BASE-SX
• 1000BASE-LX/LH
• 1000BASE-ZX
• RMON I and II standards
• SNMPv1, SNMPv2c, and SNMPv3
Table 5. Safety and Compliance
Description
Specification
Safety Certifications
• UL to UL 60950, Third Edition
• C-UL to CAN/CSA C22.2 No. 60950-00, Third Edition
• TUV/GS to EN 60950:2000
• CB to IEC 60950 with all country deviations
• NOM to NOM-019-SCFI
• CE Marking
Electromagnetic Emissions Certifications
• FCC Part 15 Class A
• EN 55022: 1998 (CISPR22)
• EN 55024: 1998 (CISPR24)
• VCCI Class A
• AS/NZS 3548 Class A
• CE
• CNS 13438 Class A
• MIC
Telecommunications
CLEI code
Warranty
Limited lifetime warranty
SERVICE AND SUPPORT
Cisco is committed to minimizing total cost of ownership, and offers a portfolio of Technical Support Services to help ensure that Cisco products operate efficiently, remain highly available, and benefit from the most up-to-date system software. The services and support programs described in the table below are available as part of the Cisco Desktop Switching Service and Support solution, and are available directly from Cisco and through resellers.
Table 6. Service and Support
Service and Support
Features
Benefits
Advanced Services
Cisco Total Implementation Solutions (TIS), available direct from Cisco Packaged TIS, available through resellers
• Project management
• Site survey, configuration, and deployment
• Installation, text, and cutover
• Training
• Major moves, adds, and changes
• Design review and product staging
• Supplements existing staff
• Helps to ensure that functions meet needs
• Mitigates risk
Technical Support Services
Cisco SMARTnet® and SMARTnet Onsite services, available direct from Cisco. Cisco Packaged SMARTnet service, available through resellers
• 24-hour access to software updates
• Web access to technical repositories
• Telephone support through the Cisco Technical Assistance Center (TAC)
• Advance replacement of hardware parts
• Enables proactive or expedited issue resolution
• Lowers total cost of ownership by taking advantage of Cisco expertise and knowledge
• Minimizes network downtime
Table 7. Ordering Information
Part Number
Description
WS-C2970G-24TS-E
• 24 Ethernet 10/100/1000 ports and 4 SFP-based Gigabit Ethernet ports
• 1.5 RU standalone, multilayer switch
• Enhanced Image Software with intelligent multilayer services
WS-C2970G-24T-E
• 24 Ethernet 10/100/1000 ports
• 1 RU standalone, multilayer switch
• Enhanced Image Software with intelligent multilayer services
RCKMNT-1RU=
Spare rack-mount kit for the Cisco Catalyst 2970G-24T-E
RCKMNT-3550-1.5RU=
Spare rack-mount kit for the Cisco Catalyst 2970G-24TS-E
GLC-ZX-SM=
GE SFP, LC connector ZX transceiver (extended distance)
GLC-LH-SM=
GE SFP, LC connector LH transceiver (long wavelength/long haul)
GLC-SX-MM=
GE SFP, LC connector SX transceiver (short wavelength)
GLC-GE-100FX=
100FX SFP on GE SFP port
GLC-T=
GE SFP, RJ-45 connector 1000BASET
PRODUCT OVERVIEW
Q. What is the Cisco® Catalyst® 2970 Series?
A. The Cisco Catalyst 2970 Series Switches are affordable Gigabit-to-the-desktop Ethernet switches that deliver wire-speed intelligent
services for small and medium-sized businesses (SMBs) and enterprise branch offices. Featuring a complete set of intelligent services,
the Catalyst 2970 Series Switches can enhance network performance and increase productivity for today's knowledge workers by
intelligently scaling beyond 100 Mbps over existing Category 5 copper cabling.
The Cisco Catalyst 2970 Series consists of the following two configurations (Table 1):
Table 1. Cisco Catalyst 2970 Series Switch Configurations
Product Name Part Number Description
Catalyst 2970G-24TS WS-C2970G-24TS-E ● 24 Ethernet 10/100/1000 ports and 4 SFP-based Gigabit
Ethernet ports
● 1.5 rack unit (RU) standalone, multilayer switch
● Enterprise-class intelligent services delivered to the
network edge
Catalyst 2970G-24T WS-C2970G-24T-E ● 24 Ethernet 10/100/1000 ports
● 1 RU standalone, multilayer switch
● Enterprise-class intelligent services delivered to the
network edge
Q. What are Small Form-Factor Pluggable (SFP) transceivers? A. SFP transceivers provide Gigabit Ethernet connectivity. They are functionally equivalent to gigabit interface converters (GBICs), but about half the size.
Q. What SFP transceivers are supported on Cisco Catalyst 2970 Series Switches? A. The Cisco Catalyst 2970G-24TS Switch supports 1000BASE-LX/LH, 1000BASE-SX, 1000BASE-ZX, and 1000BASE-T SFP transceivers.
Q. Do the Cisco Catalyst 2970 Series Switches interoperate with SFP transceivers from other vendors? A. No, like other Cisco switches and routers, the Cisco Catalyst 2970 Series Switches do not interoperate with other vendors' SFP transceivers. The switch will shut down the port if a third-party SFP transceiver is inserted.
Q. Does the Cisco Catalyst 2970 Series software image support classification and security based on Layer 3 and Layer 4 information? A. Yes. Layer 3 and Layer 4 lookups are supported.
Q. Does the Cisco Catalyst 2970 Series support stacking? A. No. The Cisco Catalyst 2970 Series does not have a stacking interface like the interface on Cisco Catalyst 3750 Series Switches. Consequently, there is no support for Cisco StackWise™ technology features.
Q. Can Cisco Catalyst 2970 Series Switches be stacked using 10/100/1000 ports? A. Cisco Catalyst 2970 Series Switches can be interconnected (in a daisy-chain) with 10/100/1000 ports, providing for Layer 2 connectivity. However, this is a 1-Gbps link that will provide neither high-speed stacking nor the resiliency, unified management, and ease-of-use of the Cisco StackWise technology found in Cisco Catalyst 3750 Series Switches.
Q. Can Cisco Catalyst 2970 Series Switches stack with Cisco Catalyst 3560 Series Switches? A. No. Cisco Catalyst 2970 Series Switches cannot stack with Cisco Catalyst 3560 Series Switches via Cisco GigaStack® stacking.
Q. Do Cisco Catalyst 2970 Series Switches have Redundant Power Supply (RPS) support? A. Yes. Cisco Catalyst 2970 Series Switches can be supported by the Cisco RPS 675. The Cisco RPS 300 can be used with the Catalyst 2970G-24T, but not the Catalyst 2970G-24TS. The Cisco RPS 675 must be used for the latter. Both the Cisco RPS 675 and the Cisco RPS 300 provide superior internal power source redundancy for up to six Cisco networking devices, resulting in improved fault tolerance and network uptime.
Q. What is the difference between the Cisco RPS 675 and the Cisco RPS 300? A. The Cisco RPS 675 is the next generation of the Cisco RPS 300. It provides more power (675W) than the Cisco RPS 300 (300W).The Cisco RPS 675 can provide up to 375W of -48V power, and 300W of 12V power. Unlike the Cisco RPS 300, the Cisco RPS 675 comes up in active mode-the customer does not need to push a button to activate the Cisco RPS 675 after a power failure. The Catalyst 2970G-24TS is supported only by the Cisco RPS 675.
INTELLIGENT SWITCHING
Q. Why do I need intelligence at the edge of my network? A. Networks are evolving to address four new developments at the network edge: ● Increase in desktop computing power ● Introduction of bandwidth-intensive applications ● Expansion of highly sensitive data on the network ● Presence of multiple device types, such as IP phones and wireless LAN (WLAN) access pointsThese demands are contending for resources with many existing mission-critical applications. As a result, IT professionals must view the edge of the network as critical to effective management of the delivery of information and applications. As companies
increasingly rely on networks as the strategic business infrastructure, it is more important than ever to ensure their high availability, security, scalability, and control. By adding Cisco intelligent functions to the wiring closet, customers can now deploy networkwide intelligent services that address these requirements in a consistent way from the desktop to the core and through the WAN. With Cisco Catalyst Intelligent Ethernet switches, Cisco Systems® helps companies to realize the full benefits of adding intelligent services to their networks. Deploying capabilities that make the network infrastructure highly available to accommodate time-critical needs, scalable to accommodate growth, secure enough to protect confidential information, and capable of differentiating and controlling traffic flows is critical to further optimizing network operations.
Q. Can you provide more details on how Cisco intelligent switching will help my network? A. Applications such as enterprise resource planning (ERP) (Oracle and SAP, for example), voice (IP telephony traffic), and CAD/CAM require prioritization over less time-sensitive applications such as FTP or Simple Mail Transfer Protocol (SMTP). It would be highly undesirable to have a large file download destined to one port on a wiring closet switch and have quality implications such as increased latency in voice traffic destined to another port on this switch. This condition is avoided by ensuring that voice traffic is properly classified and prioritized throughout the network. Cisco Intelligent Ethernet switches implement superior QoS to help ensure that network traffic is classified and prioritized.
Q. Why are intelligent services important when deploying Gigabit Ethernet at the network edge? A. Intelligent services are important when deploying Gigabit Ethernet at the network edge to ensure that oversubscribed resources in the core are available for business-critical and delay-sensitive traffic. With employees having 1000 Mbps at their disposal, network resources could easily be overwhelmed with low-priority traffic without proper QoS policies to classify, police, and shape traffic.
SECURITY
Q. How does the Cisco Catalyst 2970 Series manage the security needs of a network? A. With the rise in internal threats to a network, Cisco Ethernet switches enhance data security through numerous features, including Secure Shell (SSH) Protocol and Simple Network Management Protocol Version 3 (SNMPv3), access control lists (ACLs), 802.1X, port security, private virtual LAN (VLAN) edge, Dynamic Host Configuration Protocol (DHCP) interface tracker, MAC address notification, and RADIUS/TACACS+. Depending on your security needs, the Cisco Catalyst 2970 Series complements devices such as firewalls, VPNs, and intrusion detection systems (IDSs).
Q. For security purposes, how can I protect unauthorized users from accessing my network? A. The Cisco Catalyst 2970 Series supports 802.1X, which works in conjunction with a RADIUS server to authenticate users as they access a network. The 802.1X standard is considered port-level security and is commonly used for WLANs. Additionally, portions of the network can be restricted by using ACLs. Access can be denied based on MAC addresses, IP addresses, or Transmission Control Protocol/User Datagram Protocol (TCP/UDP) ports. ACL lookups are done in hardware-forwarding and routing performance is not compromised when implementing ACL-based security. Port security is an additional protection method, which ensures that the appropriate user is on the network by limiting access to the port based on MAC addresses.
Q. For security purposes, how can I monitor or track activities in my network? A. IDSs are tailored to monitor and track activities in a network. The Cisco Catalyst 2970 Series can complement this through features such as MAC address notification, which will send an alert to a management station so that network administrators know when and where users came on to the network and can take appropriate actions. The DHCP Interface Tracker (Option 82) feature will track where a user is physically connected on a network by providing both switch and port ID to a DHCP server.
Q. For security purposes, how do I protect administration passwords and traffic going to the switch during configuration or
troubleshooting? A. To protect administration traffic during the configuration or troubleshooting of a switch (such as passwords or device configuration settings), the best approach is to encrypt the data. Both SSH and SNMPv3 provide encryption of data during Telnet and SNMP sessions.
NETWORK MANAGEMENT
Q. Do Cisco Catalyst 2970 Series Switches support Cisco Switch Clustering technology? A. Yes, they can be managed using the Cisco Network Assistant software, which uses Cisco Switch Clustering technology. Cisco Network Assistant is a PC-based network management application optimized for LANs of small and medium-sized businesses with up to 250 users. Cisco Network Assistant offers centralized management of Cisco switches, routers, and WLAN access points. It supports a wide range of Cisco Catalyst Intelligent Ethernet switches. Through a user-friendly GUI, users can configure and manage a wide array of switch functions and start the device manager of Cisco routers and Cisco wireless access points. Cisco Network Assistant is available at no cost and can be downloaded from Cisco.com. Cisco Network Assistant provides an integrated management interface for delivering intelligent services, enabling users to manage their entire LAN with one robust tool. By bringing the simplicity of traditional LAN switching to intelligent services such as multilayer switching, QoS, multicast, and security ACLs, Cisco Network Assistant offers administrators benefits formerly reserved for only the most complex networks. The Guide mode in Cisco Network
Assistant leads you through the configuration of high-end features and provides enhanced online help for context-sensitive assistance. In addition, a solution wizard provides automated configuration of the switch for video streaming or videoconferencing. Cisco Network Assistant supports standards-based connectivity options such as Ethernet, Fast Ethernet, Cisco Fast EtherChannel® technology, Gigabit Ethernet, and Gigabit EtherChannel connectivity. Because Cisco Switch Clustering technology is not limited by proprietary stacking modules, stacking cables, or interconnection media, Cisco Network Assistant expands the traditional cluster domain beyond a single wiring closet and lets you mix and match interconnections to meet specific management, performance, and cost requirements. Cisco Catalyst 2970 Series Switches can be configured either as command or member switches in a Cisco switch cluster. Cisco Network Assistant also allows you to designate a standby or redundant command switch, which takes the commander duties should the primary command switch fail. Other important features include the ability to configure multiple ports and switches simultaneously, as well as perform software updates across the entire cluster at once. Bandwidth graphs and link reports provide useful diagnostic information, and the topology map gives network administrators a quick view of the network status.
Q. Is the Cisco Catalyst 2970 Series available with Web-based setup? A. Yes. Cisco Express Setup is available on the Cisco Catalyst 2970 Series. This feature simplifies the initial “out-of-the-box” deployment experience of Cisco Catalyst fixed-configuration switches. In the past, users had to connect a computer to the console port of the switch (using a special rollover cable), launch a terminal emulation program, and then configure an IP address, switch name,and password via the command-line interface (CLI). With Express Setup, the user can now simply connect a PC with an Ethernet cable into any port on the switch, hold the “mode” button to activate Express Setup, and launch a Web browser. The switch can then be set up using a single Webpage.
POSITIONING
Q. Where would I deploy a Cisco Catalyst 2970 Series Switch? A. The Cisco Catalyst 2970 Series is designed for deployment in high-performance departmental workgroups, SMBs, and branch-office deployments requiring Gigabit-to-the-desktop, but where stacking is not required. The Cisco Catalyst 2970 Series delivers intelligent services such as advanced QoS, rate limiting, security filtering, and multicast management to the network edge.
SOFTWARE UPDATES
Q. For which fixed-configuration and stackable Cisco Catalyst switch product series can I obtain a “no additional cost” Cisco IOS
Software update? A. Cisco offers ongoing Cisco IOS Software updates for the following fixed-configuration and stackable Cisco Catalyst switch product series at no additional cost. For the life of the product, updates within the Cisco IOS package purchased (such as LAN Base, IP Base, IP Services, etc.) will be made available to customers. ● Cisco Catalyst Express 500 Series Switches ● Cisco Catalyst 2900 XL Series Switches ● Cisco Catalyst 2940 Series Switches ● Cisco Catalyst 2948G-GE-TX Series Switch ● Cisco Catalyst 2950 Series Switches ● Cisco Catalyst 2950 LRE Series Switches ● Cisco Catalyst 2955 Series Switches ● Cisco Catalyst 2960 Series Switches ● Cisco Catalyst 2970 Series Switches ● Cisco Catalyst 3500 XL Series Switches ● Cisco Catalyst 3550 Series Switches ● Cisco Catalyst 3560 Series Switches ● Cisco Catalyst 3750 Series Switches ● Cisco ME 2400 Series Ethernet Access Switches ● Cisco ME 3400 Series Ethernet Access Switches Note that upgrades are different from updates. For example, an upgrade from the IP Base Package to the IP Services Package provides significant new functions; therefore, this upgrade requires the purchase of a software license upgrade. Updates are incremental software features and bug fixes that are released within a Cisco IOS Software package for which you own a license.This statement supersedes any previous warranty or software statement and is subject to change without notice.
Q. How do I get a “no additional cost” Cisco IOS Software update for my fixed-configuration and/or stackable Cisco Catalyst switch? A. Customers that own a software license for any of the aforementioned fixed-configuration and/or stackable Cisco Catalyst switch product series (listed previously) may obtain a software update at the Cisco.com Website. Go to the following URL: http://tools.cisco.com/support/downloads/pub/MDFTree.x?butype=switches or from http://www.cisco.com click on “Downloads” and select “Switch Software”. To download software, you will be required to log in using your Cisco.com username and password. If you do not have a Cisco.com username, you can obtain
one by clicking on “Register” at the top of any Cisco.com Webpage (http://tools.cisco.com/RPF/register/register.do).
WARRANTY AND SERVICE
The hardware warranty available on the Cisco Catalyst 2900 XL and Catalyst 3500 XL Series and Cisco Catalyst Express 500, Catalyst 2940, Catalyst 2950, Catalyst 2960, Catalyst 2970, Catalyst 3550, Catalyst 3560, and Catalyst 3750 Series is the Limited Lifetime Hardware Warranty. This warranty automatically comes with the purchase of eligible Cisco Catalyst products, free of charge. For specific details on the Cisco Limited Lifetime Hardware Warranty, visit: http://www.cisco.com/go/services.
Q. What types of service and support is available for the Cisco Catalyst 2970 Series? A. A full complement of lifecycle service and support is available for the Cisco Catalyst 2970 Series. From implementation to operation and optimization, Cisco offers Technical Support Service and Advanced Service delivered either directly or through one of its best-inclass partners.
TECHNICAL SUPPORT SERVICE
Technical Support Service is available through Cisco SMARTnet® service and SMARTnet Onsite service. The Cisco SMARTnet service augments the resources of your operations staff by providing them with access to expertise, both online and on the telephone, and numerous hardware Advance Replacement options. The Cisco SMARTnet Onsite service complements the hardware Advance Replacement feature by adding the services of a field engineer-services that can be critical for locations where internal staff are unavailable to replace parts. For more information about the Cisco SMARTnet service, visit: http://www.cisco.com/en/US/products/svcs/ps3034/ps2827/ps2978/serv_group_home.html.
PRODUCT AND CONTACT INFORMATION
Q. Where can I find technical and product specifications and other information about Cisco Catalyst 2970 Series Switches? A. For Cisco Catalyst 2970 Series product literature, including data sheets and product specifications, visit: http://www.cisco.com/go/catalyst2970.
Q. What are the part numbers for the Cisco Catalyst 2970 Series? When are they orderable? A. The part numbers are listed at the beginning of this product bulletin. The products are orderable now. For further information visit: http://www.cisco.com/go/catalyst2970.