CISCO SD WAN

 

  # Multiprotocol Label Switching (MPLS) - Cisco IOS
  # Meraki
 # SD WAN –Software Defined WAN is a software-defined approach to managing the WAN.  

 # Simple , secure way to route traffic for quality experience.

 # Evolution of MPLS technology 
 # SD-WAN is the application of Software Defined Networking (SDN) concepts to the edge devices that apply rules and policies to send traffic along the best path

  # Applicable to wider scenarios
 # MPLS handled failure scenarios with backup links, SD-WAN handles them with real-time traffic steering based on centralized policy
 # Unifies the entire WAN backbone, it delivers comprehensive analytics across the full enterprise back bone, globally.

 # Reducing costs with transport independence across MPLS, 4G/5G LTE, and other connection types.

 # Improving application performance and increasing agility.

 # Optimizing user experience and efficiency for software-as-a-service (SaaS) and public- cloud applications.

 # Simplifying operations with automation and cloud-based management.

Video Link : https://www.cisco.com/c/en_in/products/ios-nx-os-software/multiprotocol-label-switching-mpls/index.html#~mpls-vs-sd-wan

Through a dashboard called vManage, Cisco SD-WAN provides:

Transport independence - Guaranteeing zero network downtime, automates application flexibility over multiple connections.

Network services - Deliver rich networking and security services with clicks on the dashboard.

Endpoint flexibility - Simplify connectivity across branches, campuses, data centers, or cloud environments, extending the SD-WAN fabric wherever you need it to go.

vManage: Network Management System (NMS): Centralized network management system, to configure overlay networks from a dashboard.

vSmart Controller: Controls the flow of data traffic by working with the vBond orchestrator to authenticate SD-WAN devices as they join the network.

vBond Orchestrator: Orchestrates connectivity between vEdge routers and vSmart controllers.

vEdge Routers: Provisioned at the perimeter of a site and delivered as hardware, software, cloud or virtualized components.

The Cisco SD-WAN software provides a REST API, which is a programmatic interface for controlling, configuring, and monitoring the devices in an overlay network.

The Cisco SD-WAN REST API calls expose the functionality of the software and hardware features for the normal operations to maintain SD-WAN devices. Each of these features or operations is called a resource. 

Resources are grouped into collections. 

   1. Administration

  2. Certificate Management

  3. Configuration

  4. Device Inventory

  5. Monitoring

  6. Real-Time Monitoring

 7. Troubleshooting Tools

devasc@labvm:~/labs/devnet-src/sd-wan$

    cat sd-wan-get-devices_1.py

        - Import libraries

        - def variables defining the vmanage host

        - Login action

    cat sd-wan-get-devices_2.py

        - Authenticate login

        - Get session token

        - Verify token status code is 200

    cat sd-wan-get-devices_3.py

    cat sd-wan-get-devices.py

        - Retrieves list of devices

      

 1. https://contenthub.netacad.com/devnet/8.4.19

2. https://www.cisco.com/c/en_in/products/ios-nx-os-software/multiprotocol-label-switching-mpls/index.html#~mpls-vs-sd-wan

3. https://devnetsandbox.cisco.com/RM/Diagram/Index/c9679e49-6751-4f43-9bb4-9d7ee162b069?diagramType=Topology