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HPC high-performance computing scenarios

AI Distributed computing scenarios

Distributed storage scenarios

Centralized storage scenario

Image in Docker can be regarded as a special file system, which only provides the programs required by the container runtime, and the libraries, resources, configurations, and other files required by the container runtime are hosted by the host Machine OS provides

The Docker engine obtains the image from the repository and runs the container on the corresponding host

Image files are stored centrally in a repository and can be public or private

Docker containers are created based on images, and a running container is a process running on a Docker host

In the NSH implementation, the service chain function is implemented by inserting the NSH header into VXLAN packets

In the PBR implementation, the controller delivers PBR diversion policy routes to SFF and SC nodes hop-by-hop through NETCONF

In PBR implementation, the controller delivers filtering and redirection policies to the SC nodes to selectively redirect service traffic

In the NSH implementation, the SF node must support NSH

iMaster NCE-FabricInsight

Router

Data center switches

SmartNICs

PODs are physical units, i.e. a Fabric network can be thought of as a POD.

VDC is a resource unit, VDC supports cross-POD deployment, and tenants rent resources at VDC granularity.

VPC is a business unit, and VPC supports cross-POD deployment.

VMs are virtual machines, and VMs can be deployed across VPCs.

NIC driver

SmartNIC

Network equipment

iMasterNCEFabric

Felix is primarily used to store the metadata of the calico and to serve as a communication hub for the various components of the calico

Think of the server running the container as a router, and then run the specified routing protocol on the router

In large-scale networking, a route reflector is used to synchronize pod routes across the network

Use BGP as the routing protocol

The path number of the service chain

Used to indicate the next-hop IP address

Used to prevent loops

The SI value can be used to calculate the number of business function points that are currently eclips

Carry the source EPG group ID in the reserved field in the VXLAN packet header

In the 802. 1Q header carries the source EPG group ID

Carry the source EPG group ID in the G flag in the header of the VXLAN packet

Carry the source EPG group ID in the VNI field in the VXLAN packet header

In the case of a two-level network, the Spine switch does not have an uplink interface, and all ports are used to connect to the Leaf switch

When designing a network architecture, a bottom-up approach is generally used to determine how many layers of architecture to use based on the size of the network

In two-tier networking, the number of Spine switches is equal to the total number of upstream interfaces of all leaf switches divided by the number of interfaces per Spine switch and rounded up by D

First, the total number of network access interfaces is determined according to the number of computing nodes in the cluster and the number of service interfaces of each node