osdocs8646 updating networking about page

Author: Daniel Chadwick

networking/about-networking.adoc

@@ -6,25 +6,118 @@ include::_attributes/common-attributes.adoc[]
 
 toc::[]
 
-{openshift-networking} is an ecosystem of features, plugins and advanced networking capabilities that extend Kubernetes networking with the advanced networking-related features that your cluster needs to manage its network traffic for one or multiple hybrid clusters. This ecosystem of networking capabilities integrates ingress, egress, load balancing, high-performance throughput, security, inter- and intra-cluster traffic management and provides role-based observability tooling to reduce its natural complexities.
-
-
-The following list highlights some of the most commonly used {openshift-networking} features available on your cluster:
-
-- Primary cluster network provided by either of the following Container Network Interface (CNI) plugins:
-  * xref:../networking/ovn_kubernetes_network_provider/about-ovn-kubernetes.adoc#about-ovn-kubernetes[OVN-Kubernetes network plugin], the default plugin
-  * xref:../networking/ovn_kubernetes_network_provider/about-ovn-kubernetes.adoc#about-ovn-kubernetes[About the OVN-Kubernetes network plugin]
-- Certified 3rd-party alternative primary network plugins
-- Cluster Network Operator for network plugin management
-- Ingress Operator for TLS encrypted web traffic
-- DNS Operator for name assignment
-- MetalLB Operator for traffic load balancing on bare metal clusters
-- IP failover support for high-availability
-- Additional hardware network support through multiple CNI plugins, including for macvlan, ipvlan, and SR-IOV hardware networks
-- IPv4, IPv6, and dual stack addressing
-- Hybrid Linux-Windows host clusters for Windows-based workloads
-- {SMProductName} for discovery, load balancing, service-to-service authentication, failure recovery, metrics, and monitoring of services
-- {sno-caps}
-- Network Observability Operator for network debugging and insights
-- link:https://catalog.redhat.com/software/container-stacks/detail/5f0c67b7ce85fb9e399f3a12[Submariner] for inter-cluster networking
-- link:https://docs.redhat.com/en/documentation/red_hat_service_interconnect/[Red Hat Service Interconnect] for layer 7 inter-cluster networking
+{openshift-networking} is an ecosystem of features, plugins, and advanced networking capabilities that extend Kubernetes networking with the advanced networking-related features your cluster needs to manage its network traffic for one or multiple hybrid clusters. This ecosystem of networking capabilities integrates ingress, egress, load balancing, high-performance throughput, security, inter- and intra-cluster traffic management, and provides role-based observability tooling to reduce its natural complexities.
+
+== Key Networking Features of Red Hat OpenShift Container Platform:
+
+- Primary Cluster Network:
+* Provided by Container Network Interface (CNI) plugins, including:
+** OVN-Kubernetes Network Plugin: The default plugin offering advanced networking features and capabilities.
+** Certified 3rd-Party Alternative Primary Network Plugins.
+
+- Cluster Network Operator:
+Manages and configures the cluster network, ensuring optimal network performance and reliability.
+
+- Ingress Operator:
+Manages TLS-encrypted web traffic, enabling secure access to services.
+
+- DNS Operator:
+Provides domain name resolution within the cluster, ensuring seamless service discovery and communication.
+
+- MetalLB Operator:
+Facilitates traffic load balancing on bare metal clusters.
+
+- IP Failover Support:
+Ensures high availability of services, reducing downtime in case of node failures.
+
+- Hardware Network Support:
+Supports additional hardware networks through multiple CNI plugins, including macvlan, ipvlan, and SR-IOV hardware networks.
+
+- Addressing:
+Supports IPv4, IPv6, and dual stack addressing to meet diverse network requirements.
+
+- Hybrid Host Clusters:
+Allows for Linux-Windows host clusters to manage Windows-based workloads.
+
+- Red Hat OpenShift Service Mesh:
+Provides discovery, load balancing, service-to-service authentication, failure recovery, metrics, and monitoring of services.
+
+- Single-Node OpenShift:
+Supports single-node deployments for smaller, streamlined use cases.
+
+- Network Observability Operator:
+Offers tools for network debugging and insights, enhancing network performance monitoring.
+
+- Submariner:
+Facilitates inter-cluster networking, enabling communication between multiple clusters.
+
+- Red Hat Service Interconnect:
+Provides layer 7 inter-cluster networking for secure and efficient service communication.
+
+== Additional Networking Features:
+
+- Zero Trust Networking:
+Emphasizes security by ensuring all communication within the cluster is authenticated and authorized.
+
+- Accessing Hosts:
+Mechanisms for accessing and managing host systems, including SSH access and node management.
+
+- Networking Dashboards:
+Tools for monitoring and managing network performance, providing visibility into network traffic and health.
+
+- Network Policies:
+Control the flow of traffic between pods, enhancing security and compliance.
+
+- Connectivity Verification:
+Methods for verifying network connectivity and troubleshooting issues.
+
+- MTU Configuration:
+Optimize network performance by changing cluster network MTU settings.
+
+- Node Port Service Range:
+Configure the range of ports available for node port services for external access.
+
+- Interface Tuning and CNI Plugins:
+Configure network interfaces and use CNI plugins for enhanced network functionality.
+
+- SCTP Support:
+Use Stream Control Transmission Protocol (SCTP) for specific application requirements.
+
+- Precision Time Protocol (PTP):
+Synchronize time across the cluster, critical for applications requiring precise timing.
+
+- External DNS Operator:
+Manage external DNS services, enabling robust DNS management.
+
+- CIDR Range Definitions:
+Configure IP address ranges within the cluster for proper network segmentation and routing.
+
+- AWS Load Balancer Operator:
+Integrate and manage AWS load balancers for scalable and reliable service delivery.
+
+- Multiple Networks:
+Use multiple network interfaces and configurations to meet complex networking requirements.
+
+- SR-IOV Networking:
+Utilize Single Root I/O Virtualization (SR-IOV) for high-performance networking.
+
+- Routes and Ingress Traffic Configuration:
+Configure and manage routes and ingress traffic for secure and efficient service access.
+
+- Kubernetes NMState Operator:
+Manage network configuration at the node level for fine-grained control.
+
+- Cluster-wide Proxy:
+Configure a cluster-wide proxy for managing external network traffic.
+
+- Custom PKI Configuration:
+Configure custom Public Key Infrastructure (PKI) for secure communication.
+
+- Load Balancing on OpenStack:
+Manage load balancers within OpenStack environments for scalable service delivery.
+
+- MetalLB:
+Load balancer implementation for bare metal Kubernetes clusters, offering flexible load balancing.
+
+- Secondary Interfaces and Metrics:
+Configure secondary network interfaces and associate metrics for enhanced monitoring and management.