Secure SD-WAN design and deployment
CyberGrid designs, deploys and supports secure SD-WAN for multi-site organisations, replacing rigid WAN links with application-aware routing, centralised policy and integrated security.
Also searched as: software-defined WAN, branch connectivity, WAN optimisation, MPLS alternative
What SD-WAN does
SD-WAN steers traffic across broadband, leased line and mobile links based on application needs and link quality.
Policy is managed centrally, and security such as next-generation firewalling can be built in at each branch.
What CyberGrid delivers
- WAN and application traffic assessment
- Topology design and vendor selection
- Branch and hub deployment with centralised policy
- Integration with firewall or SASE security
- Monitoring and support
Who it is for
- Organisations with many branches or retail outlets
- Teams paying for MPLS that want more flexibility
- Businesses moving critical applications to cloud
We serve organisations across India and support customers globally, with offices in Bangalore, Hyderabad, Chennai and Trivandrum.
How we deliver SD-WAN
1. Network and application assessment
We review sites, link types and bandwidth, the applications that matter most, and where performance or cost problems exist today.
2. Design
We design the overlay, link mix (MPLS, broadband, 4G or 5G), application policies, high availability and where security is enforced, whether in the branch device or through a cloud service.
3. Pilot site
One or two sites go first so path selection, failover and application steering are proven before the wider rollout.
4. Staged rollout
Sites move over in planned windows with the old link kept as a fallback until the new one is stable.
5. Monitoring and optimisation
We monitor link quality and application performance, adjust policies, and handle changes and escalations with the carriers.
What to look for when choosing
Built-in security
Check whether the SD-WAN edge includes firewalling and segmentation or relies on a separate device. This affects both cost and branch complexity.
Link resilience
The value of SD-WAN comes from steering traffic over several links. Plan for at least two independent connections at important sites.
Cloud and SaaS access
Direct internet breakout to SaaS and cloud applications reduces backhaul, but only if security is applied at the branch or in a cloud service.
Management model
Decide between self-managed and managed service based on your team’s capacity to run policy changes and watch link health.
Compliance alignment
Segmentation and encrypted overlays between sites support network security controls in ISO 27001 and PCI DSS, and central logging provides the traffic records auditors request.
Common scenarios
Cutting MPLS cost
Broadband links carry non-critical traffic while MPLS is kept for the applications that need guaranteed quality.
Improving cloud application performance
Traffic to SaaS and cloud goes straight from the branch, which usually beats routing it through the data center.
Adding a failover link
If the primary link degrades, traffic shifts automatically to the backup path without staff noticing.
Mistakes to avoid
- Relying on a single internet link. Without a second independent connection, much of the resilience benefit is lost.
- Leaving branch security as an afterthought. Direct internet breakout needs inspection. Plan it into the design.
- No carrier coordination. Link faults often sit with the provider. Agree escalation paths up front.
Frequently asked questions
Can SD-WAN replace MPLS?
Often it can, fully or partly. Latency-sensitive applications may still justify a private link at key sites; we assess this per site.
Is SD-WAN secure?
SD-WAN encrypts tunnels, but you should add inspection through an integrated firewall or SASE rather than treating the overlay as a security control.
How does SD-WAN relate to SASE?
SD-WAN is a core component of SASE. You can start with SD-WAN and add cloud security later.
Do we have to drop MPLS to adopt SD-WAN?
No. SD-WAN can run over MPLS, broadband and mobile links together. Many organisations keep MPLS for critical traffic and add internet links for capacity and resilience.
Is SD-WAN secure on its own?
SD-WAN encrypts the overlay, but inspection of traffic needs a firewall function, either built into the edge device or delivered through a cloud security service. We design that into the plan.
