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What is flannel?

Flannel acts as a dedicated virtual networking layer specifically designed for containerized applications. When working within the OpenShift Container Platform, it can serve as an alternative networking solution to the conventional software-defined networking (SDN) components. This method proves especially beneficial for OpenShift deployments in cloud settings that also utilize SDN technologies, such as OpenStack, by eliminating the need for redundant packet encapsulation between the two systems. Each flanneld agent is responsible for sending information to a centralized etcd store, which allows other agents on different hosts to efficiently route packets to various containers within the flannel network. Furthermore, the accompanying diagram illustrates the architecture and data flow that facilitate communication among containers operating over a flannel network. This configuration not only boosts overall network performance but also streamlines the management of containers in intricate environments, ultimately leading to better resource utilization and operational efficiency.

What is Project Calico?

Calico is a flexible open-source platform that focuses on networking and securing containers, virtual machines, and workloads running on native hosts. It seamlessly integrates with numerous platforms, including Kubernetes, OpenShift, Mirantis Kubernetes Engine (MKE), OpenStack, and even bare metal setups. Users have the option to utilize either Calico's eBPF data plane for cutting-edge performance or the traditional networking pipeline of Linux, allowing for outstanding scalability tailored specifically for cloud-native applications. Both developers and cluster administrators enjoy a cohesive experience and a reliable set of features, regardless of whether they are working in public clouds, on-premises, on a single machine, or across large multi-node clusters. Furthermore, Calico provides various data plane configurations, featuring a pure Linux eBPF data plane, a standard Linux networking data plane, and a Windows HNS data plane. This versatility ensures that it meets the preferences and requirements of users, whether they favor the modern advancements of eBPF or the tried-and-true networking concepts familiar to experienced system administrators. Ultimately, this remarkable flexibility positions Calico as an attractive option for organizations in search of resilient networking solutions that can adapt to their evolving needs. By catering to a wide range of environments and use cases, Calico stands out as a comprehensive choice for enhancing connectivity and security across diverse workloads.

Media

Media

Integrations Supported

Mirantis Kubernetes Engine
OpenStack
Red Hat OpenShift
Amazon EKS
Apigee
Azure Kubernetes Service (AKS)
Box
GitHub
Google Kubernetes Engine (GKE)
IBM Cloud Kubernetes Service
Kubernetes
OrangeCRM
Squarespace

Integrations Supported

Mirantis Kubernetes Engine
OpenStack
Red Hat OpenShift
Amazon EKS
Apigee
Azure Kubernetes Service (AKS)
Box
GitHub
Google Kubernetes Engine (GKE)
IBM Cloud Kubernetes Service
Kubernetes
OrangeCRM
Squarespace

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Red Hat

Date Founded

1993

Company Location

United States

Company Website

docs.openshift.com/container-platform/3.4/architecture/additional_concepts/flannel.html

Company Facts

Organization Name

Project Calico

Company Location

United States

Company Website

projectcalico.docs.tigera.io/about/about-calico

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