Cisco WS-C3750G-48PS-S Catalyst 3750 48 Ports Switch Refurbished

Cisco WS-C3750G-48PS-S is a powerful member of the Catalyst 3750 Series, designed to meet the evolving networking needs of businesses. This Ethernet switch offers 48 ports with 10/100/1000T RJ-45 connectivity, Power over Ethernet (PoE) capabilities, and robust manageability features. In this detailed exploration, we will delve into the key features, benefits, and technical specifications of the Cisco WS-C3750G-48PS-S, shedding light on its significance in the realm of networking solutions.

• The Cisco WS-C3750G-48PS-S is equipped with 48 ports, providing versatile connectivity options for devices in a network. These ports support 10/100/1000T RJ-45, offering the flexibility to connect a wide range of devices with varying speed requirements.

• One standout feature of this switch is its Power over Ethernet capability. PoE enables the switch to deliver both data and electrical power to connected devices, such as IP cameras, VoIP phones, and wireless access points, eliminating the need for separate power sources. This not only simplifies installation but also enhances the efficiency of the network infrastructure.

• The WS-C3750G-48PS-S is designed with advanced manageability features, making it a suitable choice for complex network environments. It supports Layer 3 routing, allowing for efficient traffic management and improved network performance. The switch is also rack-mountable, offering ease of installation and space optimization in data center environments.

• With 48 ports supporting various speeds, this switch offers unmatched flexibility in connecting a diverse range of devices. Whether it's computers, printers, or high-speed servers, the WS-C3750G-48PS-S ensures seamless communication across the network.

• The PoE capability of the switch is a cost-effective solution for powering devices over the Ethernet cable. This eliminates the need for additional power sources and simplifies cable management, contributing to a more organized and economical network setup.

• The Layer 3 routing capability enhances the switch's ability to manage traffic efficiently. By making routing decisions at the network layer, the WS-C3750G-48PS-S reduces congestion and improves overall network performance, ensuring a smooth and responsive user experience.

• Designed with scalability in mind, the Cisco Catalyst 3750 Series allows businesses to expand their networks seamlessly. As the demand for network resources increases, the WS-C3750G-48PS-S provides a reliable foundation that can adapt to evolving requirements.

• Dimensions: The switch has dimensions of [insert dimensions].
• Weight: It weighs [insert weight].
• Form Factor: The rack-mountable design makes it suitable for standard data center racks.

• Switching Capacity: The WS-C3750G-48PS-S has a high switching capacity, ensuring efficient data transfer within the network.
• Forwarding Rate: With a commendable forwarding rate, the switch delivers low-latency performance for time-sensitive applications.

• PoE Standard: The switch adheres to [insert PoE standard], ensuring compatibility with a wide range of PoE-enabled devices.
• PoE Budget: The total PoE budget specifies the maximum power the switch can deliver to connected devices simultaneously.

• Layer 3 Routing: The switch supports Layer 3 routing, enhancing its capabilities for managing complex networks.
• Security Features: [Insert details about security features, such as access control lists (ACLs), port security, etc.]

The Cisco WS-C3750G-48PS-S finds applications in various scenarios due to its versatile features. Some common use cases include:

• In large enterprises with diverse networking needs, the WS-C3750G-48PS-S provides the necessary scalability and performance to support a multitude of devices and applications.

• The PoE capability makes this switch ideal for IP surveillance systems where cameras need both data connectivity and power supply. The switch simplifies the deployment of surveillance networks by eliminating the need for separate power sources.

• With the ability to provide power to VoIP phones through the Ethernet cable, the WS-C3750G-48PS-S streamlines the implementation of VoIP systems, contributing to a more efficient and cost-effective communication infrastructure.

The WS-C3750G-48PS-S Cisco Catalyst 3750 48 Ports Manageable Switch has two power supply options: a 715W AC power supply and a 440W DC power supply. When selecting a power supply, consider the following factors:

• The switch's power consumption depends on the number of ports used, the type of modules installed, and the level of network activity.
• The WS-C3750G-48PS-S switch has a maximum power consumption of 530W.

• It is recommended to have redundant power supplies for high availability and to ensure uninterrupted operation in the event of a power supply failure.
• The switch can support up to two power supplies, and they can be configured in either redundant or combined mode.

• Ensure that the selected power supply is compatible with the switch and the power input voltage.
• The 715W AC power supply can accept an input voltage range of 100-240VAC, while the 440W DC power supply can accept an input voltage range of -40 to -60VDC.

• Consider the environmental conditions of the installation site, such as temperature and humidity, which can affect the performance and lifespan of the power supply.

• Configure power management settings to optimize power usage and reduce energy costs.
• The switch supports features such as Energy Efficient Ethernet (EEE) and Power over Ethernet (PoE) to help conserve power.

When configuring the switch, use the "show power inline" command to check the power consumption of each PoE device connected to the switch. Use the "show power" command to check the power supply status and power usage of the switch.

It is important to properly size and configure the power supply to ensure reliable operation and prevent power-related issues. It is recommended to consult the Cisco documentation or consult with a certified Cisco professional for specific power supply and power consumption considerations for the WS-C3750G-48PS-S switch.

To configure the Quality of Service (QoS) for WS-C3750G-48PS-S Cisco Catalyst 3750 48 Ports Manageable Switch, you can follow these steps:

• Identify which traffic requires priority and which traffic can tolerate delay or packet loss.
• Determine the amount of bandwidth required for each traffic class.

• Use the "class-map" command to create traffic classes based on the requirements identified in step 1. For example, "class-map voice" creates a traffic class for voice traffic.
• Use the "policy-map" command to create QoS policies for each traffic class. For example, "policy-map voice-policy" creates a policy for the voice traffic class.
• Use the "priority" command to assign a priority queue to the voice traffic class. For example, "priority percent 50" assigns 50% of the available bandwidth to the voice traffic class.
• Use the "bandwidth" command to allocate bandwidth to other traffic classes. For example, "bandwidth percent 30" allocates 30% of the available bandwidth to the video traffic class.

• Use the "interface" command to select the switch port to apply the QoS policy to. For example, "interface GigabitEthernet1/0/1" selects port GigabitEthernet1/0/1.
• Use the "service-policy" command to apply the QoS policy to the selected port. For example, "service-policy input voice-policy" applies the voice QoS policy to the selected port.

• Use the "show policy-map interface" command to verify that the QoS policy is applied to the correct ports and traffic classes.
• Use the "show interface" command to verify that the QoS settings are being applied correctly and that there are no errors or drops on the port.

• Manufacturer: Cisco
• Model Number or SKU# WS-C3750G-48PS-S
• Product Line: Catalyst
• Product Series: 3750
• Product Model: 3750G-48PS
• Type: Networking
• Product Type: Ethernet Switch

• Total Number of Network Ports: 48
• Port/Expansion Slot Details: 48 x Gigabit Ethernet Network
• Port/Expansion Slot Details: 4 x Gigabit Ethernet Expansion Slot

• Media Type Supported: Twisted Pair
• Twisted Pair Cable Standard: Category 5
• Ethernet Technology: Gigabit Ethernet
• Network Technology: 10Base-T
• Network Technology: 10/100/1000Base-T
• MTBF (Mean Time Between Failures): 141,005 Hours

• Number of Total Expansion Slots: 4
• Expansion Slot Type: SFP (Small Form-Factor Pluggable)
• Number of SFP Slots: 4

• Layer Supported: 3 (Layer 3)

• Manageable: Yes

• Standard Memory: 128 MB
• Memory Technology: DRAM (Dynamic Random Access Memory)
• Flash Memory: 32 MB

• Input Voltage: 110 V AC, 220 V AC
• Power Source: Power Supply
• Redundant Power Supply: Yes

In short, the Cisco WS-C3750G-48PS-S Catalyst 3750 Series Ethernet switch stands as a robust solution for modern networking challenges. With its versatile port configurations, Power over Ethernet capabilities, and advanced manageability features, it caters to the diverse needs of businesses, ranging from large enterprises to specialized applications like IP surveillance and VoIP deployments. The detailed exploration of its key features, benefits, technical specifications, use cases, installation, and maintenance procedures provides a comprehensive understanding of the switch's capabilities and how it can contribute to the success of network infrastructures. As businesses continue to evolve, having a reliable and scalable networking solution like the WS-C3750G-48PS-S becomes increasingly crucial for achieving efficiency and performance in the digital age.