Internet Protocols, TCP/IP, and Web technologies

Dr. Lavian offers Internet and web expert consulting services involving Internet technologies, standards, and protocols. He is an Internet protocols expert, including TCP/IP suite, TCP, UDP, IP, MAC Ethernet, 802.3, network protocols, network software applications, data links, network, and transport layers (L2, L3, L4).

As the Internet & Web applications have grown increasingly sophisticated, a new generation of cutting-edge apps and sites now offer richer functionality and more dynamic features. Therefore, Many Web applications still rely upon a traditional 3-tier, database-driven backend architecture. Yet, the state of the art has evolved dramatically in recent years. Microservices and client-side frameworks help applications use essential capabilities that offer striking performance improvements over older technology stacks. However, These include location-aware abilities that leverage the user’s social graph to enable interactive app experiences.

Dr. Lavian is well-versed with the advanced internet protocols and web technologies, primarily implemented through the TCP/IP protocol suite, which gives him a keen understanding of the logic behind business software and its component application, transport, network, data link, and physical layers.

Internet and Web Expert - Internet Protocols (TCP/IP)

  • Internet protocols, TCP/IP protocol suite, TCP, UDP, IP, MAC, ARP/RARP, BOOTP IPv4, IPv6, and IPSec.
  • Ethernet, 802.3, Physical Layer, PHY, MAC, Data Link, Network, and Transport layers (L2, L3, L4), Frame, Datagram, Packet, Session.
  • Internet and web expert, Network protocols, Broadband, ICMP, IGMP, ARP, ARQ, HARQ.
  • Network architecture, system, network configuration, and network management.
  • Internet technologies, HTTP, DNS, DHCP, NNTP, VPN SIP, and RTP.
  • Network protocols e-mail, SMTP, POP, IMAP, FTP, Telnet, SSH, and SNMP.
  • Architecture and Cloud Computing, Web applications, client-server, cloud computing, distributed computing, peer-to-peer networking, virtual private networks, tunneling, content networking, network security, and mobile applications.
  • Programming languages, Communications Software, Java, C/C++, software APIs, network configuration and scripting, and network management.
  • Web technologies, cloud communications, distributed applications, and distributed computing.

Internet Technologies Expert

The Internet, first conceived of as a military communication system, has, over the past 30 years, grown into an inexhaustible resource for countless individuals across the globe. The various protocols of the Internet and its applications have become increasingly complex in recent years. Moreover, This complexity provides the Internet its vast reach. However, it also challenges network administrators and users, typically addressed by network management tools and automation.

The Internet is the best example of interconnected computer networks that use the Internet protocol suite (TCP/IP) to communicate between many data networks, computer networks, and devices. In network communications, packet switching is the underlying mechanism for grouping data transmitted over a digital network into packets. 

Network Protocols

A protocol may consider a layer in a network stack. Each layer may include one or more protocols. For example, Network Layer is the third TCP/IP stack layer. It serves as an intermediary between the Application Layer and Data Link Layer. Therefore, The Network Layer is concerned with transmitting individual units of data (known as packets) from the source host to its destination host. The Network Layer is not worried about how the data is transmitted. It may be transmitted through local area networks (LANs), wide area networks (WANs), or even satellites.

Resource-sensitive services, such as Quality of Service (QoS) in telephony applications and adaptive video streaming. Pose a challenge to traditional network design. Traditionally, Application-specific features, such as QoS and security, have been implemented at intermediate network nodes. This can cause implementation delays and negatively impact the end users. End-to-end delay and packet loss-sensitive services require end nodes to make local decisions about appropriate resources. Allocation throughout the networks – not just at destination nodes. In this case, application-specific features need to reside in communicating end nodes.

TCP/IP Stack

The TCP/IP (Transmission Control Protocol/Internet Protocol) stack is a set of protocols that define how data is transmitted over a network. It consists of four layers: the Application Layer, the Transport Layer, the Network Layer, and the Data Link Layer.

The Application Layer is the topmost layer responsible for providing services to the user. This includes applications such as web browsers, email clients, and chat programs.

The Transport Layer is responsible for providing end-to-end communication between two hosts. It ensures that data is delivered reliably and in the correct order. It also provides flow control to prevent data overflow.

The Network Layer routes packets from the source host to the destination host. It uses logical addressing to identify the hosts on the network.

The Data Link Layer provides reliable link-level communication between two directly connected devices. It uses physical addressing to identify devices on the network and provides error detection and correction.

In summary, the TCP/IP stack is a hierarchical set of protocols that work together to provide reliable communication over a network. Each layer has its own specific functions and protocols, and together they form the foundation of the internet and other communication networks.

Internet Applications and Web Services

Dr. Lavian offers expert consulting services in Internet and Web applications, including internet technologies, web applications, client-server, cloud computing, distributed computing, web services, internet applications, and internet software architecture. With over 35 years of experience in the field, Dr. Lavian brings a wealth of knowledge and expertise to his consulting services.

His expertise in cloud computing allows him to provide valuable insight into the delivery of services over internet infrastructures, such as software, online storage, and applications for personal and business use. He is well-versed in SaaS (Software-as-a-Service) and its benefits, including the ability to quickly and seamlessly update applications in real-time via the cloud.

Whether you are a business looking to improve your use of internet and web technologies or an individual seeking guidance on cloud computing and SaaS, Dr. Lavian is here to help. Please contact him today to learn more about his consulting services and how he can help you.

Internet Applications and Web Services Expert

Internet Applications and Web Services Expert

The following are Dr. Lavian’s areas of expertise in Internet applications and Web services:

  • Internet Protocol (IP), IP Sockets, TCP/IP, UDP.
  •  Internet and Web applications. 
  • Client-server, cloud computing, distributed computing.
  • Web Services, Internet Applications, and Internet software architecture
  • Security Groups, ACLs, Virtual Private Networks, Firewalls, and Network Balancers.

The Cloud Computing Layers

Cloud computing is a model for delivering IT services over the internet. It offers access to computing resources, such as storage, networking, computing power, and software applications, without the need for users to manage and maintain the underlying infrastructure. This allows organizations to focus on developing and deploying their own applications without worrying about purchasing and maintaining hardware.

Cloud computing can be divided into three main categories:

  1. Infrastructure-as-a-Service (IaaS) provides the basic building blocks of cloud technologies, such as storage, networking, memory, and computing power. Examples of IaaS providers include Amazon AWS, Microsoft Azure, and Google GCP.

  2. Platform-as-a-Service (PaaS) allows organizations to develop and deploy their own applications on the cloud without worrying about managing the underlying infrastructure. Examples of PaaS providers include Amazon AWS, Microsoft Azure, and Google GCP.

  3. Software-as-a-Service (SaaS) offers complete software applications as a service. This means users do not need to worry about maintaining the software or addressing security vulnerabilities. Examples of SaaS providers for consumers include Box and Dropbox, while examples for businesses include Salesforce CRM.