Cisco SG355-10P-K9-NA Managed Switch
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Cisco SG355-10P-K9-NA 10 Ports Manageable Switch Layer 3 Refurbished

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Part Number#: SG355-10P-K9-NA
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Short Description:
SG355-10P-K9-NA Small Business SG355 10 Ports 2 x Gigabit Ethernet Expansion Slot 8 Power Over Ethernet Plus (PoE+) Ethernet Ports & 2 Combo Gigabit Small Form-Factor Pluggable (SFP) Ports Layer 3 Managed Switch | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Product Details of the Cisco SG355-10P-K9-NA 10 Ports Managed Switch

The Cisco SG355-10P-K9-NA is a Small Business SG355 series switch designed to provide advanced networking capabilities for small to medium-sized enterprises. This Layer 3 managed switch offers a range of features that enhance network performance, including 10 ports, 2 x Gigabit Ethernet expansion slots, 8 Power Over Ethernet Plus (PoE+) Ethernet ports, and 2 Combo Gigabit Small Form-factor Pluggable (SFP) ports.

Key Features of Layer 3 Gigabit Ethernet Switch

10 Ports

The Cisco SG355-10P-K9-NA switch boasts a total of 10 ports, which include 8 Power over Ethernet Plus (PoE+) Ethernet ports and 2 Combo Gigabit Small Form-factor Pluggable (SFP) ports. This configuration allows for versatile connectivity options, making it suitable for a variety of network setups.

Gigabit Ethernet Expansion Slots

Equipped with 2 x Gigabit Ethernet expansion slots, this switch facilitates high-speed data transfer, ensuring optimal performance for data-intensive applications. Gigabit Ethernet provides data rates of 1 gigabit per second, making it ideal for tasks such as large file transfers, video streaming, and other bandwidth-demanding activities.

Power Over Ethernet Plus (PoE+)

One standout feature of the Cisco SG355-10P-K9-NA switch is its support for Power over Ethernet Plus (PoE+). This technology enables the switch to deliver both data and electrical power over the Ethernet cables, eliminating the need for separate power sources for connected devices. With PoE+, the switch can power devices such as IP cameras, VoIP phones, and access points, simplifying cable management and reducing installation costs.

Enhanced Connectivity

With a total of 10 ports, including 8 PoE+ Ethernet ports, businesses can connect a variety of devices to the network, ranging from IP cameras and VoIP phones to access points. The switch's design ensures that connectivity needs are met without compromising performance.

Versatile Uplink Options

The 2 Combo Gigabit SFP ports offer versatile uplink connectivity. Organizations can choose between copper and fiber-optic connections based on their specific requirements. This flexibility ensures compatibility with different networking environments and helps optimize data transfer rates.

Energy-Efficient Design

With an increasing focus on sustainability, the switch incorporates energy-efficient features to minimize power consumption. This not only reduces the environmental impact but also results in cost savings for businesses over the long term.

Switch Management

Layer 3 Managed Switch

The Cisco SG355-10P-K9-NA operates as a Layer 3 managed switch, providing advanced routing capabilities. Layer 3 switches operate at the network layer of the OSI model, allowing them to make routing decisions based on IP addresses. This makes the switch more intelligent in directing traffic within the network, enhancing overall network efficiency.

Web-Based Management Interface

To streamline the configuration and monitoring process, the switch comes with a user-friendly web-based management interface. This interface provides administrators with a centralized platform to configure settings and monitor network performance, and issues. The intuitive design ensures that even users with limited networking expertise can navigate and manage the switch effectively.

Routing and Switching Protocols

The Cisco Small Business SG355-10P 10-Ports Manageable Layer 3 Switch SG355-10P-K9-NA is a Layer 3 switch that supports various routing and switching protocols. These protocols allow the switch to perform advanced network functions, such as routing between VLANs, managing Quality of Service (QoS), and providing redundancy.

  • Internet Protocol (IP) Routing: The switch supports both static and dynamic IP routing, which allows it to determine the best path for data to travel through the network. The switch supports Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) for dynamic routing between VLANs.
  • Virtual LAN (VLAN) Support: The switch supports up to 256 VLANs, which allow for the segmentation of the network into smaller, more manageable sections. This feature allows for greater security and control over network traffic.
  • Quality of Service (QoS): The switch supports advanced QoS features, such as traffic prioritization and bandwidth management. These features ensure that critical network traffic, such as voice and video, is given priority over less important traffic, such as file transfers.
  • Link Aggregation Control Protocol (LACP): The switch supports LACP, which allows multiple physical links to be combined into a single logical link. This provides increased bandwidth and redundancy, as well as failover protection in case of a link failure.
  • Dynamic Host Configuration Protocol (DHCP) Server: The switch includes a built-in DHCP server, which can be used to automatically assign IP addresses to devices on the network. This simplifies IP address management and reduces the chance of IP address conflicts.
  • Network Time Protocol (NTP): The switch supports NTP, which allows for synchronization of the switch's internal clock with an external time source. This ensures accurate timekeeping on the switch and across the network.

These protocols can be enabled or disabled through the switch's web-based management interface. This gives network administrators the flexibility to configure the switch to meet the specific needs of their network.

Deployment Scenarios

Small to Medium-sized Enterprises (SMEs)

The Cisco SG355-10P-K9-NA switch is well-suited for small to medium-sized enterprises seeking a reliable and feature-rich networking solution. Its compact form factor and powerful capabilities make it an ideal choice for businesses with moderate networking requirements.

IP Surveillance Systems

With its PoE+ support, the switch is particularly advantageous for the deployment of IP surveillance systems. It can power and connect IP cameras using a single Ethernet cable, simplifying installation and reducing the need for additional power sources. This makes it a cost-effective solution for organizations looking to enhance their security infrastructure.

Voice over IP (VoIP) Deployments

In VoIP deployments, the Cisco SG355-10P-K9-NA switch's PoE+ capability becomes crucial. It can power VoIP phones, eliminating the need for separate power adapters. Additionally, the Layer 3 capabilities contribute to efficient call routing and network management, ensuring a seamless communication experience.

Network Management and Security Features

The Cisco Small Business SG355-10P 10-Ports Manageable Layer 3 Switch SG355-10P-K9-NA also provides various Network Management and Security features.

  • Web-based Management Interface: The switch includes a web-based management interface that allows network administrators to configure, monitor, and switch remotely. This interface provides a user-friendly and intuitive interface for managing the switch.
  • SNMP Support: The switch supports Simple Network Management Protocol (SNMP), which allows for remote management and monitoring of the switch using SNMP-compatible network management systems.
  • Access Control Lists (ACLs): The switch supports ACLs, which allow network administrators to set rules for controlling access to the network. This feature can be used to restrict access to specific IP addresses, ports, and protocols, providing an additional layer of security to the network.
  • SSH/SSL Support: The switch supports Secure Shell (SSH) and Secure Sockets Layer (SSL) protocols, which allow for secure remote management of the switch. This provides an additional layer of security, as all communications between the switch and a remote management system are encrypted.
  • Port Security: The switch supports port security, which allows network administrators to set a maximum number of MAC addresses per port, and also to configure the switch to take specific actions when the maximum number of MAC addresses is exceeded.
  • IEEE 802.1X: The switch supports IEEE 802.1X, which is a network access control standard that requires devices connecting to the network to provide credentials before gaining access. This feature can be used to restrict access to the network to only authorized devices.
  • Denial-of-service (DoS) Protection: The switch protects against various types of DoS attacks, such as IP spoofing, IP-directed broadcast, and TCP-SYN flood attacks.

Main Information for the Cisco SG355-10P-K9-NA Ethernet Switch

  • Manufacturer: Cisco
  • Part Number or SKU# SG355-10P-K9-NA
  • Product Series: 350
  • Product Type: Ethernet Switch

Technical Information of Managed Switch

  • Ethernet Technology: Gigabit Ethernet
  • Network Technology: 1000Base-X
  • Network Technology: 10/100/1000Base-T
  • Enclosure Type: Rack-mountable 1U
  • Power Over Ethernet (PoE): PoE+

Interfaces / Ports of Ethernet Switch

  • Total Number of Network Ports: 10
  • Form Factor: Desktop
  • Ports: 8 x 10/100/1000 (PoE+) + 2 x Kombi-Gigabit-SFP
  • Uplink Port: Yes
  • Modular: Yes
  • Stack Port: No
  • Port/Expansion Slot Details: 2 x Gigabit Ethernet Expansion Slot
  • Port/Expansion Slot Details: 10 x Gigabit Ethernet Network

Media & Performance for 10 Ports Switch

  • Media Type: Supported Optical Fiber
  • Media Type: Supported Twisted Pair
  • Switching capacity: 20 Gbps
  • Forwarding performance (64-byte packet size): 14.88 Mpps
  • Jumbo Frame Support: 9216 bytes
  • Capacity Active VLANs: 4096

I/O Expansions

  • Number of Total Expansion Slots: 2
  • Expansion Slot Type: SFP
  • Shared SFP Slot: Yes
  • Number of SFP Slots: 2
Network & Communication
  • Layer Supported: 3
Management & Protocols
  • Manageable: Yes
  • Routing Protocol: Static IPv4 routing, CIDR
  • Remote Management Protocol: SNMP 1, RMON 1, RMON 2, RMON 3, RMON 9, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS, TFTP, SSH, CLI
Power Description
  • Power Source: Power Supply
  • Redundant Power Supply Supported: No
  • PoE Budget: 62 Watts

Finally, the Cisco SG355-10P-K9-NA Small Business SG355 series switch stands out as a versatile and powerful networking solution. Its combination of port flexibility, PoE+ support, Gigabit Ethernet expansion slots, and Layer 3 managed capabilities make it well-suited for a range of applications. Whether used in small to medium-sized enterprises, IP surveillance systems, or VoIP deployments, this switch offers a robust and feature-rich platform for building and managing modern network infrastructures. Administrators will appreciate its user-friendly management interface and advanced security features, contributing to a reliable and secure networking experience.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

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.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

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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(b) any misuse outside the instructions in the user manual for any specific product;

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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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