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Computer Network Articles
Page 60 of 122
What is Inter-Switch Link (ISL)?
Inter-Switch Link (ISL) is a proprietary VLAN trunking protocol developed by Cisco Systems for carrying multiple VLAN traffic between Cisco switches. ISL was designed to maintain VLAN information when frames traverse trunk links connecting switches. Unlike the IEEE 802.1Q standard, ISL uses external tagging by completely encapsulating the original Ethernet frame with an ISL header and trailer, rather than inserting a tag within the frame. How ISL Works ISL operates by encapsulating the entire original Ethernet frame with a 26-byte header and a 4-byte CRC trailer. The encapsulated frame remains completely unchanged throughout transmission. ...
Read MoreRemote Direct Memory Access (RDMA)
Remote Direct Memory Access (RDMA) is a networking technology that allows one computer to directly access the memory of another computer over a network without involving the operating system, CPU, or cache of either machine. This capability significantly improves system throughput and performance by freeing up critical resources. RDMA enables read and write operations on remote machines without interrupting the remote CPU, resulting in increased data transfer rates and reduced networking latency. It achieves this through zero-copy networking, which transfers data directly into system buffers via network adapters. Originally used exclusively in high-performance computing (HPC) environments where performance ...
Read MoreAlias/Secondary IP Address
IP aliasing is the process of assigning multiple IP addresses to a single network interface. This technique allows one physical network adapter to handle traffic for several different IP addresses, each potentially serving different purposes or applications. Multiple network addresses can be configured on a single physical interface using IP aliasing. One common use case is to make a single computer appear as multiple systems on the network, enabling better resource utilization and service separation. IP Aliasing on Single Interface eth0 Interface 192.168.1.10 192.168.1.11 (eth0:1) ...
Read MoreDifference between Amazon S3 and Mediafire
Amazon S3 (Simple Storage Service) and MediaFire are two distinct cloud storage solutions designed for different use cases. Amazon S3 targets enterprise applications and developers, while MediaFire focuses on personal file storage and sharing for individual users. Amazon S3 Amazon Simple Storage Service (Amazon S3) is a scalable, enterprise-grade cloud storage service launched by AWS in March 2006. It provides object-based storage designed for web-scale computing and commercial applications. Target use cases − Data lakes, website hosting, mobile applications, enterprise applications, IoT devices, and big data analytics Storage capacity − Virtually unlimited storage ...
Read MoreDifference between Dropbox and Backblaze B2
Dropbox is a cloud storage and file synchronization service that allows users to store, sync, and share files across multiple devices and platforms. Founded in 2007 by MIT students Drew Houston and Arash Ferdowsi, Dropbox has become one of the most popular cloud storage solutions for both personal and business use. Dropbox operates on a freemium model, offering 2 GB of free storage that can be expanded through referrals and paid plans. The service is designed with user-friendly interfaces and seamless synchronization capabilities across Windows, macOS, iOS, Android, and web browsers. Dropbox Features Storage Options ...
Read MoreCapacity of a channel in Computer Networks
The capacity of a channel in computer networks refers to the maximum amount of data that can be transmitted through a communication medium. It is a fundamental concept in network design and performance analysis, determining the theoretical upper limit of data throughput for any given channel. Channel capacity analysis helps network engineers evaluate system performance, identify bottlenecks, and optimize network infrastructure. Whether dealing with fiber-optic cables, wireless connections, or wide area networks (WANs), understanding capacity limitations is crucial for effective network planning. Types of Communication Channels Communication channels are classified based on their directional capabilities: ...
Read MoreDifference between Cloud Computing and Virtualization
Cloud Computing and Virtualization are two fundamental technologies that revolutionized modern IT infrastructure, yet they serve different purposes and operate at different scales. Understanding their distinctions is crucial for making informed technology decisions. What is Virtualization? Virtualization is a technology that creates software-based replicas of physical hardware resources, allowing multiple virtual environments to run on a single physical machine. It uses a thin software layer called a hypervisor to manage and allocate hardware resources among virtual machines (VMs). Each VM operates as an independent computer with its own operating system, applications, and allocated resources, while sharing the ...
Read MoreDifference between Amazon Drive and Box
With the exponential growth in cloud storage solutions, choosing the right service has become increasingly important for both personal and business use. Two prominent players in this space are Amazon Drive and Box, each offering distinct features and targeting different user needs. This article explores the key differences between these two cloud storage platforms to help you make an informed decision. Amazon Drive Amazon Drive is a cloud storage service launched by Amazon in 2011, leveraging the robust infrastructure of Amazon Web Services (AWS) and S3 storage technology. The platform is designed primarily for personal use and integrates ...
Read MoreDifference between BorgBase and HCL Connections
When choosing between BorgBase and HCL Connections, it's essential to understand their fundamental differences. These platforms serve distinct purposes and target different user needs in the data management and collaboration space. BorgBase BorgBase is a specialized cloud hosting service designed for Borg repositories, focusing primarily on secure data backup and storage. Founded in 2010, it emphasizes data security through advanced encryption and append-only modes to prevent data loss. BorgBase Architecture Client Data Local Files Borg Client 256-bit AES ...
Read MoreDifference between Domain and Workgroup
A domain is a logical grouping of computers or devices connected to networks and managed by a centralized server called a domain controller. The domain controller handles authentication, assigns unique domain names, and provides centralized administration for all devices within the domain. In contrast, a workgroup is a collection of independent computers connected by a network that can share resources and data without centralized control. Each computer in a workgroup manages its own security and user accounts independently. Domain vs Workgroup Architecture Domain ...
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