Five key terms of CLOUD Networking
Whether you are a network engineer or an infrastructure architect, understanding core network concepts such as multi-tier architecture and hybrid networks will help you use the cloud.
Multi-tier architecture
Multi-virtual private cloud (VPC) architecture
High availability (HA)
Hybrid networks
High performance
Despite the fact that many aspects of networking is changed in the cloud, data packets continue to flow between servers and containers. The transformation from physical equipment to software-defined networking is the most significant networking change when migrating to the cloud.
Cloud Infrastructure
Image Source: Huawei CLOUD
Multi-tier architecture
A multi-tier architecture is a grouping of different software components by function, into tiers or layers. There is no limit to the number of tiers, but the most common models use three:
Presentation tier (user interface) Application or logic tier Data tier
Tier Level
3-Tier app, Image Source: Shutterstock
Multi-VPC architecture
VPC (Virtual Private Cloud) is the most foundational service, it provisions logically isolated, configurable, and manageable space virtual networks for cloud servers for improving security and simplifying network.
By using the Default VPC for your whole infrastructure use multiple VPCs to enable isolation between your two customers, as larger applications can be viewed as multiple interlinked applications that capture one or more business functions to meet a business outcome. These larger distributed applications loosely share data between functions to support the business outcomes of related business processes.
Multi VPC Infrastructure
Image Source: Huawei CLOUD
High availability
A network is intended to prevent communication breakdowns between established network traffic endpoints (internal to internal, internal to external, external to internal.) This is achieved by implementing redundant components, deploying parallel components to balance traffic load, and eliminating single points of failure to reduce or manage failures and minimize downtime.
HA Setup
Hybrid network
Nowadays more than 70% of enterprises have at least one application or a a portion of their enterprise computing infrastructure in the cloud.
When you configure a hybrid network, at least two independent cloud or on-premises networks communicate with each other. Services can communicate between the two environments as in a traditional network.
Multicloud refers to the presence of more than 1 cloud deployment of the same type (public or private), sourced from different vendors.
Hybrid cloud refers to the presence of multiple deployment types (public or private) with some form of integration or orchestration between them.
High performance
The goal of high performance is to provide data to the user as quickly as possible. Latency is a term used to describe anything that increases the time it takes for data to reach the user. For a high-performing network, lowering latency is critical. Application processing time, delays between application layers, or the connection between the user and the application can all contribute to latency. Other factors to consider are:
Packet loss
Variations in latency or time delay between packets (also known as jitter)
Bandwidth constraints
Inefficient protocol usePhysical distance between the user and where the application is hosted.
Delays in the network can ruin the experience and reflect poorly on the service being provided. This is true whether you're sending a consumer a webpage or moving data from point A to point B. High-performance networks deliver the quickest experience by directing a packet of data down the shortest path from its origin to its destination with the least amount of delay.
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