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AFSD-WAN Overview & Architecture
Posted on Jan 08, 2020
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SD-WAN Overview & Architecture
SD-WAN Definition:
SD-WAN is software defined Wide Area Network mostly used to provide accelerated service delivery , better application performance by utilizing multiple WAN links by automating network deployment.
Need for SD-WAN:
SD-WAN is needed to solve following business challenges:
- High access cost for MPLS based network for better application performance
- Branch deployments are complex in nature day by day
- Issue faced due to static traditional Architecture while migration to dynamic and public cloud environments.
Challenges faced by using traditional WAN
- Complex Static WAN Architecture and need to simplify WAN for enterprise Branch offices
- Inefficient WAN utilization in case branch has multiple link
- Branch faces often insecure communication, even if uses IPSEC, causes latency due to larger packet size
- Branches faces Rigid WAN circuit Requirement
- Backhauling leading Performance issue of application
- Expensive Traditional Private WAN links
- Cloud Migration requirements
Features of SD-WAN:
Below are the features of SD-WAN:
- SD-WAN visualize the network
- It ensure the secure Overlay
- It simplifies the Service Delivery
- It is well interoperability with traditional WAN segments
- It uses Low cost effective hardware
- It supports automation and business policy framework
- Enables Managed services like monitoring, troubleshooting, configuration
- It provide zero-touch deployment of branches.
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