Cisco CBS250-8T-E-2G 8 Ports Switch Networking
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CBS250-8T-E-2G Cisco CBS 250 SFP 8 Ports Ethernet Switch Refurbished

Availability: In Stock
Part Number#: CBS250-8T-E-2G
List Price was: $569.23
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Short Description:
CBS250-8T-E-2G 250 Series 8 Ports L3 Combo SFP - Rack-mountable Ethernet Switch | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Introduction to the Ethernet Switch

The CBS250-8T-E-2G Cisco CBS 250 SFP 8 Ports Ethernet Switch is a compact, high-performance, and cost-effective switch designed for small and medium-sized businesses. It is part of Cisco's 250 Series of switches, which provide basic network management capabilities at an affordable price point.

The switch has 8 Gigabit Ethernet ports and 2 SFP ports, providing a flexible and scalable solution for connecting devices such as computers, servers, and IP phones. The SFP ports can be used for fiber connectivity, allowing the switch to support longer distances and higher speeds than copper-based Gigabit Ethernet.

The switch supports various network protocols such as DHCP, VLANs, STP, and LLDP for network segmentation and redundancy. It also supports Quality of Service (QoS) for prioritizing network traffic and Link Aggregation Control Protocol (LACP) for grouping multiple physical links into a single logical link.

Additionally, the switch supports Cisco's Web UI, CLI and Cisco Network Assistant for configuring and managing the switch, and can be remotely managed using Simple Network Management Protocol (SNMP).

Network Management and Security

The Cisco CBS 250 SFP 8 Ports Ethernet Switch (CBS250-8T-E-2G) can be managed through a web interface, Simple Network Management Protocol (SNMP), or the Cisco Discovery Protocol (CDP). The web interface allows for easy configuration and monitoring of the switch, while SNMP and CDP provide more advanced management capabilities.

In terms of security, the CBS250-8T-E-2G supports features such as Access Control Lists (ACLs) to control access to the network, and Port Security to restrict access to specific ports. It also supports IEEE 802.1X port-based authentication, which allows for secure access to the network through the use of credentials.

Additionally, the CBS250-8T-E-2G supports advanced security features such as DHCP Snooping, IP Source Guard, and Dynamic ARP Inspection (DAI) to prevent network attacks and protect against malicious activity.

Quality of Service (QoS) and Traffic Management

The Cisco CBS 250 SFP 8 Ports Ethernet Switch (CBS250-8T-E-2G) supports Quality of Service (QoS) and traffic management features to help prioritize and manage network traffic. QoS allows you to assign different priorities to different types of traffic, such as voice and video, to ensure that critical applications receive the necessary bandwidth.

The CBS250-8T-E-2G supports several QoS features, including:

  • Class of Service (CoS) based on IEEE 802.1p priority tagging, which allows you to assign different priorities to different types of traffic
  • Differentiated Services Code Point (DSCP) based on IP precedence and Differentiated Services (DiffServ) standards, which allow you to assign different priorities to different types of traffic based on the IP header
  • Traffic policing and shaping, which allow you to control the amount of traffic that is sent or received on a particular port

The CBS250-8T-E-2G also supports Link Aggregation Control Protocol (LACP) and Port Aggregation Protocol (PAgP) which allows you to bundle multiple physical ports together to form a single logical link, providing increased bandwidth and redundancy.

Key Information about Cisco CBS250-8T-E-2G

  • Manufacturer: Cisco
  • Model Number or SKU# CBS250-8T-E-2G
  • Product Name: Business CBS250-8T-E-2G Ethernet Switch
  • Product Line: Business
  • Product Series: 250
  • Product Type: Ethernet Switch

Media & Performance of 8 Ports Switch

  • Network Technology: 1000Base-T
  • Ethernet Technology: Gigabit Ethernet
  • Media Type Supported: Optical Fiber

I/O Expansions of Switch 250 Series

  • Expansion Slot Type: SFP (mini-GBIC)
  • Number of Total Expansion Slots 2
  • Number of SFP Slots: 2
  • Shared SFP Slot Yes

Management & Protocols

  • Manageable: Yes

Interfaces/Ports of Layer 3 Switch

Power Description

  • Input Voltage: 230 V AC
  • Power Source: Power Adapter
  • Power Consumption: 12.56 W

Network & Communication

  • Layer Supported: 3

Dimensions & Weight

  • Width: 10.6 Inch
  • Depth: 7.3 Inch
  • Height: 1.7 Inch
  • Weight 3.75 lBS


  • Color Category
  • White
  • Rack Mounting Kit
  • Included
  • Encryption Algorithm
  • SSL
  • Authentication Method
  • RADIUS, Secure Shell (SSH), Secure Shell v.2 (SSH2)
  • MTBF
  • 2,171,669 Hours
  • Compliant Standards
  • CSA 22.2, FCC CFR47 Part 15 A, UL 60950, USGv6

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Different Types of Switches

Networking switches vary widely depending on the number of devices they can support, network bandwidth/speed, and form factor. Switches for small offices will have anything between 4 and 8 ports and can fit on a desk. For larger office network implementation, switches may have 24 ports, 48 ports, 96 ports, and 128 ports and are rack-mountable between 1U and 4U. Switches come in different types depending on the network speed and tasks they support. These include 40/100 Gbps, 10 Gigabit (up to 10000 Mbps), Gigabit Ethernet (up to 1000 Mbps), Power over Ethernet, and Fast Ethernet (10/100 Mbps).

Unmanaged Switches

The unmanaged switches offer fixed configurations on a plug-and-play basis. It is the most basic switch and there are a few choices in the market. These switches are affordable, but the basic features make them inappropriate for enterprise applications.

Managed Switches

The number of features and level of functionality improves with managed switches, making them ideal for enterprise and business applications. These switches are built with the command-line interface for ease of configuration. Equally, they support SNMP agents that come in handy when troubleshooting network issues.

The security on managed switches is better and will protect different types of traffic. Other features include support for virtual LANs, IP routing, and quality of service settings. Managed switches are more expensive compared to all other types of switches.

Smart Switches

Smart switches refer to switches that possess more features than those unmanaged switches but do not have the full features of managed switches. Smart switches are more cost-effective than managed switches.

Some of the limitations of the smart switches are a lack of telnet access support, Web GUIs, and a lack of many features for VLANs. They are affordable compared to a fully managed switch and are suitable for a smaller computer network.

Modular Switches

Modular switches allow the addition of expansion modules as the network expands. The expansion modules allow for more networked devices but are application-specific. They may include wireless access points, firewalls, or network analysis tools. The flexibility of a modular networking switch comes at a higher cost.

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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

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