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Cisco C2950G 48x10/100 Ethernet 2xGBIC L2 Managed Rack Switch WS-C2950G-48-EI

Name: Cisco C2950G 48x10/100 Ethernet 2xGBIC L2 Managed Rack Switch WS-C2950G-48-EI
Brand: Cisco
SKU: 65219
Price: 22.80 GBP
Availability: InStock

mpn: WS-C2950G-48-EI

product brand: Cisco

product condition: Used

excluding vat: £19.00

including vat: £22.80

information

Cisco C2950G 48x10/100 Ethernet 2xGBIC L2 Managed Rack

Switch WS-C2950G-48-EI

Model Number: WS-C2950G-48-EI
In Good ConditionIn Full Working OrderRackmount Ears Not Included
Is Missing/ Broken The Mode Button
Included

1 x Cisco C2950G 48x10/100 Ethernet 2xGBIC L2 Managed Rack Switch WS-C2950G-48-EI

Overview
Cisco Catalyst 2950 Series Switches are fixed-configuration, stackable models that provide wire-speed Fast Ethernet and Gigabit Ethernet connectivity for small and midsize networks. The Catalyst 2950 Series is an affordable product line that brings intelligent services, such as enhanced security, high availability, and advanced quality of service (QoS), to the network edge—while maintaining the simplicity of traditional LAN switching. When a Catalyst 2950 Switch is combined with a Catalyst 3550 Series Switch, the solution can enable IP routing from the edge to the core of the network. Embedded in Catalyst 2950 Series switches is the Cisco Cluster Management Suite (CMS) Software, which allows users to simultaneously configure and troubleshoot multiple Catalyst desktop switches using a standard Web browser. In addition to CMS, Cisco Catalyst 2950 switches provide extensive management tools using Simple Network Management Protocol (SNMP) network management platforms such as Cisco Works.

This product line offers two distinct sets of software features and a range of configurations to allow small, mid sized,and enterprise branch offices to select the right combination for the network edge. The Standard Image software offers Cisco IOS functionality for basic data, video,and voice services. For networks with requirements for additional security,advanced QoS and high availability, the Enhanced Image software delivers intelligent services such as rate limiting and security filtering for deployment at the network edge.

The Cisco Catalyst 2950 Series Switches consists of the following devices—which are only available with the Enhanced Image(EI) Software for the Catalyst 2950 Series.

Catalyst 2950G-48—48 10/100 ports and 2 Gigabit Interface Converter(GBIC)-based Gigabit Ethernet ports
Catalyst 2950G-24—24 10/100 ports and 2 GBIC ports
Catalyst 2950G-24-DC—24 10/100ports, 2 GBIC ports, DC power
Catalyst 2950G-12—12 10/100 ports and 2 GBIC ports
Catalyst 2950T-24—24 10/100 ports and 2 fixed 10/100/1000BASE-Tuplink ports
Catalyst 2950C-24—24 10/100 ports and 2 fixed 100BASE-FX uplink ports

This complete set of switches offers network managers flexibility when selecting a migration path to Gigabit Ethernet. The two built-in Gigabit Ethernet ports on the Catalyst 2950G-12,2950G-24, and 2950G-48 accommodate arange of GBIC transceivers, including the Cisco GigaStack GBIC, 1000BASE-SX,1000BASE-LX/LH, 1000BASE-ZX,1000BASE-T, and CWDM GBICs. The dual GBIC-based Gigabit Ethernet implementation provides customers with tremendous deployment flexibility—allowing customers increased availability with the redundant uplinks. In sum, the configuration permits customers to implement one type of stacking and uplink configuration today,while preserving the option to migrate to another configuration in the future. High levels of stack resiliency can also be implemented by deploying dual redundant Gigabit Ethernet uplinks, a redundant GigaStack GBIC loop back cable, Uplink Fast and CrossStack Uplink Fast technologies for high-speed uplink and stack interconnection failover, and Per VLAN Spanning Tree Plus(PVST+) for uplink load balancing. In addition, the Catalyst 2950T-24 offers small and midsized enterprises server connectivity and an easy migration path to Gigabit by using existing copper cabling infrastructure.Implementing Gigabit Ethernet over copper allows network managers to boost network performance and maximize infrastructure investments in Category 5 copper cabling.

Features And Benefits
Availability
Superior Redundancy for Fault Backup

IEEE 802.1D Spanning-Tree Protocol support for redundant backbone connections and loop-free networks simplifies network configuration and improves fault tolerance.
Support for Cisco Spanning-Tree Protocol enhancements such as UplinkFast, BackboneFast, and Port Fast technologies ensure quick fail-over recovery enhancing overall network stability and availability.
IEEE 802.1w Rapid Spanning-Tree Protocol (RSTP) provides rapid convergence of the spanning tree independent of spanning-tree timers.
Cisco CrossStack UplinkFast technology extends UplinkFast to a stack to ensure quick fail-over recovery enhancing network stability and availability.
Support for Cisco's optional, 300-watt redundant AC power system provides a backup power source for up to four units for improved fault tolerance and network uptime.
Redundant stacking connections provide support for a redundant loopback connection for top and bottom switches in an independent stack backplane cascaded configuration.
Command switch redundancy enabled in the Cisco CMS Software allows customers to designate a backup command switch that takes over cluster management functions if the primary command switch fails.
Provides unidirectional link detection (UDLD) and Aggressive UDLD for detecting and disabling unidirectional linkson fiber-optic interfaces caused by incorrect fiber-optic wiring or port faults.

Integrated Cisco IOS Features for Bandwidth Optimization

Bandwidth aggregation up to 4 Gbps (2 ports full duplex) through Gigabit Ether Channel technology and up to 16Gbps (8 ports full duplex) through Fast Ether Channel technology enhances fault tolerance and offers higher-speed aggregated bandwidth between switches, to routers and individual servers. Port Aggregation Protocol (PAgP) is available to simplify configuration.
Per-port broadcast, multicast, and unicast storm control prevents faulty end stations from degrading overall systems performance.
Per virtual LAN (VLAN) Spanning Tree Plus (PVST+) allows for Layer 2 load sharing on redundant links to efficiently utilize 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 2load sharing on redundant links.
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. Dynamic Trunking Protocol (DTP) enables dynamic trunk configuration across all ports in the switch.
IGMP snooping provides for fast client joins and leaves of multicast streams and limits bandwidth-intensive videotraffic to only the requestors. MVR, IGMP filtering and fast-join and immediate leave are available as enhancements.
MVR continuously sends multicast streams in a multicast VLAN while isolating the streams from subscriber VLANsfor bandwidth and security reasons.
Supports additional frame formats: Ethernet II (tagged and untagged), 802.3 (SNAP encapsulated tagged and untagged frames)

Network-Wide Security Features

Filtering of incoming traffic flows based on Layer 2, Layer 3, or Layer 4 ACPs prevents unauthorized data flows.

The following Layer 2 ACPs or a combination can be used for security classification of incoming packets: source Media Access Control (MAC) address, destination MAC address, and 16-bit Ethertype.
The following Layer 3 and Layer 4 fields or a combination can be used for security classification of incoming packets: source IP address, destination IP address, TCP source or destination port number, UDP source, or destination port number. ACLs can also be applied to filter based on DSCP-values.
Time-based ACLs allow configuration of differentiated services based on time-periods.

A private VLAN edge provides security and isolation between ports on a switch, ensuring that voice traffic travels directly from its entry point to the aggregation device through a virtual path and cannot be directed to a different port.
Support for the 802.1x standard allows users to be authenticated regardless of which LAN port they are accessing,and provides unique benefits to customers who have a large base of mobile (wireless) users accessing the network.

802.1x with VLAN assignment allows a dynamic VLAN assignment for a specific user regardless of where the user is connected.
802.1x with an ACL assignment allows for specific security policies based on a user regardless of where the user is connected.
802.1x with voice VLAN to permit an IP phone access to the voice VLAN irrespective of the authorized or unauthorized state of the port.
802.1x with port security for authenticating the port and managing network access for all MAC addresses,including that of the client.

SSH and SNMPv3 provides network security by encrypting administrator traffic during Telnet and SNMP sessions—SSH and the crypto version of SNMPv3 require a special crypto software image due to US export restrictions.
Port Security secures the access to a port based on the MAC address of a user's device. The aging feature removes the MAC address from the switch after a specific time frame to allow another device to connect to the same port.
MAC Address Notification allows administrators to be notified of new users added or removed from the network.
Spanning-tree root guard (STRG) prevents edge devices not in the network administrator's control from becoming Spanning-Tree Protocol root nodes.
The Spanning-Tree Protocol PortFast/bridge protocol data unit (BPDU) guard feature disables access ports with Spanning-Tree Protocol Port Fast-enabled upon reception of a BPDU, and increases network reliability,manageability, and security.
Multilevel security on console access prevents unauthorized users from altering the switch configuration.
TACACS+ and RADIUS authentication to enable centralized control of the switch and restrict unauthorized users from altering the configuration.
The user-selectable address-learning mode simplifies configuration and enhances security.
Trusted Boundary provides the ability to trust the QoS priority settings if an IP phone is present and disable the trust setting in the event that the IP phone is removed, thereby preventing a rogue user from over riding prioritization policies in the network.
IGMP Filtering provides multicast authentication by filtering out non-subscribers and limits the number of concurrent multicast streams available per port.
Support for dynamic VLAN assignment through implementation of VLAN Membership Policy Server (VMPS) client functionality provides flexibility in assigning ports to VLANs. Dynamic VLAN enables fast assignment of IP address.
Cisco CMS Software Security Wizards ease the deployment of security features for restricting user access to a server, a portion of the network or access to the network.

Specification
Performance

13.6-Gbps switching fabric
Catalyst 2950G-48: 13.6-Gbps maximum forwarding bandwidth
8-MB memory architecture shared by all ports
Up to 16-MB SDRAM and 8-MB Flash memory
Configurable up to 8000 MAC addresses

Management

BRIDGE-MIB
CISCO-BULK-FILE-MIB
CISCO-2900-MIB
CISCO-CDP-MIB
CISCO-CLASS-BASED-QOS-MIB
CISCO-CLUSTER-MIB
CISCO-CONFIG-COPY-MIB
CISCO-CONFIG-MAN-MIB
CISCO-ENVMON-MIB
CISCO-FLASH-MIB
CISCO-FTP-CLIENT-MIB
CISCO-IMAGE-MIB
CISCO-IPMROUTE-MIB
CISCO-MAC-NOTIFICATION-MIB
CISCO-MEMORY-POOL-MIB
CISCO-PAGP-MIB
CISCO-PING-MIB
CISCO-PROCESS-MIB
CISCO-PRODUCTS-MIB
CISCO-RTTMON-MIB
CISCO-SMI
CISCO-STACKMAKER-MIB
CISCO-STP-EXTENSIONS-MIB
CISCO-SYSLOG-MIB
CISCO-TC
CISCO-TCP-MIB
CISCO-VLAN-MEMBERSHIP-MIB
CISCO-VTP-MIB
ENTITY-MIB
IANAifType-MIB
IF-MIB (RFC 1573)
OLD-CISCO-CHASSIS-MIB
OLD-CISCO-CPU-MIB

Indicators

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

Dimensions and Weight(H x W x D)

1.72 x 17.5 x 13 in. (4.36 x 44.5 x 33.02 cm)(Cisco Catalyst 2950G-48)

Environmental Ranges

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% (non-condensing)
Operating altitude: Up to 10,000 ft (3000 m)
Storage altitude: Up to 15,000 ft (4500 m)

Power Requirements

Power consumption: 45W maximum, 154 BTUs per hour (Catalyst 2950G-48)
AC input voltage/frequency: 100 to 127/200 to 240 VAC (auto-ranging), 50 to 60 Hz
DC Input Voltages for Cisco RPS 300 RPS: +12V @ 4.5A

Mean Time BetweenFailure (MTBF)—Predicted

159,026 hours (Catalyst 2950G-48)

Bootlog

Switch>showversion

CiscoInternetwork Operating System Software

IOS (tm) C2950Software (C2950-I6K2L2Q4-M), Version 12.1(22)EA9, RELEASE SOFTWARE (fc1)

Compiled Fri01-Dec-06 18:22 by weiliu

Image text-base:0x80010000, data-base: 0x8067A000

ROM: Bootstrapprogram is C2950 boot loader

Switch uptime is0 minutes

System returnedto ROM by power-on

System image fileis "flash:/c2950-i6k2l2q4-mz.121-22.EA9.bin"

This productcontains cryptographic features and is subject to United

States and localcountry laws governing import, export, transfer and

use. Delivery ofCisco cryptographic products does not imply

third-partyauthority to import, export, distribute or use encryption.

Importers,exporters, distributors and users are responsible for

compliance withU.S. and local country laws. By using this product you

agree to complywith applicable laws and regulations. If you are unable

to comply withU.S. and local laws, return this product immediately.

ciscoWS-C2950G-48-EI (RC32300) processor (revision K0) with 19958K bytes of memory.

Processor boardID FOC0720Z3D3

Last reset fromsystem-reset

Running EnhancedImage

48FastEthernet/IEEE 802.3 interface(s)

2 GigabitEthernet/IEEE 802.3 interface(s)

32K bytes offlash-simulated non-volatile configuration memory.

Base ethernet MACAddress: 00:0D:28:94:1C:C0

Motherboardassembly number: 73-7409-12

Power supply partnumber: 34-0965-01

Motherboardserial number: FOC07200XHY

Power supplyserial number: DAB07205PE6

Model revisionnumber: K0

Motherboardrevision number: A0

Model number:WS-C2950G-48-EI

System serialnumber: FOC0720Z3D3

Configurationregister is 0xF

Switch>showinventory

NAME: "Switch",DESCR: "Cisco Catalyst c2950 switch with 48 10/100 BaseTX ports and 2 GBIC(Gigabit Interface Converter) slots"

PID:WS-C2950G-48-EI , VID: K0 , SN:FOC0720Z3D3

Switch>showhardware