Introduction to the 48 Ports Switch
The WS-C4948-E Cisco Catalyst 4948 is a high-performance and reliable Layer 3 Ethernet switch that is designed for use in data centers and enterprise networks. With 48 ports, this switch can handle a large number of devices and connections.
One of the main advantages of the WS-C4948-E is its support for advanced routing protocols, including both IPv4 and IPv6. This allows for efficient and flexible communication between devices on the network. Additionally, Quality of Service (QoS) features ensure that critical traffic is prioritized and that network performance is optimized.
In terms of security, the WS-C4948-E includes various features to protect against threats, such as access control lists (ACLs) and denial-of-service (DoS) prevention.
The switch also has a variety of management and troubleshooting tools to make it easy to monitor and maintain the network. These include the Cisco command-line interface (CLI) and a web-based graphical user interface (GUI) that allows administrators to configure and monitor the switch remotely.
The WS-C4948-E also supports EnergyWise technology, which helps to reduce energy consumption and costs by allowing the switch to power down or adjust power to devices that are not in use.
Maximizing Efficiency and Flexibility
There are several ways to maximize the efficiency and flexibility of the WS-C4948-E Cisco Catalyst 4948 48-port Layer 3 Ethernet switch:
- Utilize advanced routing protocols: The switch supports both IPv4 and IPv6 routing, which allows for efficient and flexible communication between devices on the network.
- Implement Quality of Service (QoS): QoS features allow you to prioritize critical traffic and ensure optimal network performance.
- Utilize security features: The switch includes various security features such as access control lists (ACLs) and denial-of-service (DoS) prevention to protect the network against threats.
- Leverage management and troubleshooting tools: The switch includes a variety of management and troubleshooting tools such as Cisco's command-line interface (CLI) and web-based graphical user interface (GUI) that make it easy to monitor and maintain the network.
- Use EnergyWise technology: EnergyWise technology helps to reduce energy consumption and costs by allowing the switch to power down or adjust power to devices that are not in use.
- Use VLANs: Utilizing VLANs can help to increase security and segmentation of the network, allowing for better control and monitoring of different traffic types.
- Use Link Aggregation Control Protocol (LACP) to increase the available bandwidth: by bundling several physical links together, LACP can increase the available bandwidth and also provide redundancy.
- Use Spanning Tree Protocol (STP) to prevent loops: STP can prevent loops in the network and ensure that only one active path exists between two stations.
Security and Network Management
The WS-C4948-E Cisco Catalyst 4948 48-port Layer 3 Ethernet switch includes several features that can help to secure the network and manage network traffic:
- Access control lists (ACLs): ACLs allow you to define and implement security policies by controlling access to network resources based on the source and destination IP addresses, protocols, and ports.
- Denial-of-service (DoS) prevention: The switch includes DoS prevention features that can protect against common attack types such as SYN floods and ICMP floods.
- Port security: Port security allows you to limit the number of MAC addresses that can be learned on a port, helping to prevent unauthorized access to the network.
- Quality of Service (QoS): QoS allows you to prioritize network traffic and ensure that critical applications receive the bandwidth they need.
- Link Aggregation Control Protocol (LACP): LACP allows you to bundle several physical links together to increase available bandwidth and provide redundancy.
- Spanning Tree Protocol (STP): STP can prevent loops in the network and ensure that only one active path exists between two stations.
- Remote management: The switch includes a web-based graphical user interface (GUI) and Cisco's command-line interface (CLI) that allows administrators to configure and monitor the switch remotely.
- EnergyWise: EnergyWise technology helps to reduce energy consumption and costs by allowing the switch to power down or adjust power to devices that are not in use.
General Information WS-C4948-E:
Manufacturer Cisco Systems, Inc
Manufacturer Part Number WS-C4948-E
Brand Name Cisco
Product Line Catalyst
Product Series 4900
Product Model 4948E
Product Name Catalyst 4948E Layer 3 Switch
Product Type Layer 3 Switch
Total Number of Network Ports 48
Token Ring Port No
LRE Port No
Number of Network (RJ-45) Ports 48
Port/Expansion Slot Details 48 x Gigabit Ethernet Network
Port/Expansion Slot Details 4 x 10 Gigabit Ethernet Expansion Slot
Media & Performance
Media Type Supported Twisted Pair
Ethernet Technology Fast Ethernet
Ethernet Technology Gigabit Ethernet
Network Technology 10/100/1000Base-T
Number of Total Expansion Slots 4
Expansion Slot Type SFP+
Number of SFP+ Slots 4
Network & Communication
Layer Supported 4
Standard Memory 1 GB
Memory Technology SDRAM
PoE (RJ-45) Port No
Input Voltage 110 V AC
Input Voltage 220 V AC
Power Source Power Supply
Redundant Power Supply Yes
About Refurbished Products
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).
The unmanaged switches offer fixed configuration 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.
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 refer to switches that possess more features than those of 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 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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