Key takeaways:
- SD-WAN is a software-defined networking approach that manages application traffic across connections such as MPLS, fibre, broadband, dedicated internet, 4G, and 5G.
- MPLS is a carrier-managed networking technology that connects fixed locations through private label-switched paths with predictable routing and service levels.
- SD-WAN is generally better suited to cloud applications, multi-branch expansion, centralised management, and environments that use several carriers or connection types.
- MPLS may still suit stable locations, established carrier agreements, legacy data-centre applications, and workloads that depend on predictable private connectivity.
- A hybrid WAN allows organisations to retain MPLS where it still adds value while using SD-WAN to manage internet, fibre, and mobile connections across other sites.
- Fortesys supports Malaysian enterprises with Peplink SD-WAN assessment, network design, deployment, optimisation, and ongoing support across multi-site environments.
Introduction
For years, MPLS has been the standard for connecting enterprise branches through private, carrier-managed networks. However, the way businesses use their networks has changed.
Cloud applications, hybrid work, and multi-branch operations have shifted traffic beyond the traditional data centre. Employees now access SaaS platforms, cloud workloads, and collaboration tools directly, placing greater demands on network performance, flexibility, and resilience.
While MPLS provides predictable private connectivity, SD-WAN extends across multiple connection types, including MPLS, broadband, fibre, and mobile networks, to optimise traffic based on application and network conditions.
For Malaysian CTOs, the question is no longer whether SD-WAN is newer, but whether their existing WAN can continue to support business growth, cloud adoption, and rising connectivity demands cost-effectively.
What Is SD-WAN?
SD-WAN stands for software-defined wide area network. It connects branches, data centres, and cloud environments through a centrally managed network overlay.
Instead of depending on one transport type, SD-WAN can manage:
- MPLS
- Business broadband
- Dedicated internet
- Fibre
- 4G or 5G
The platform monitors link conditions and routes application traffic according to policies, availability, latency, jitter, packet loss, and bandwidth.
For example, voice and video traffic may use the most stable connection, while less critical traffic can travel over a lower-cost link.
SD-WAN does not replace the underlying connection. Its performance still depends on the quality and diversity of the circuits available at each location.
What Is MPLS?
Multiprotocol Label Switching, or MPLS, is a carrier-managed technology that directs traffic across predetermined paths.
It is commonly used to connect offices and data centres through a private WAN. MPLS supports quality of service and contracted service levels, making it suitable for predictable traffic between fixed locations.
Its main limitation is flexibility. Bandwidth upgrades, backup links, and new branches generally require carrier provisioning, additional contracts, and higher recurring costs.
SD-WAN vs MPLS: What Are the Key Differences?
Both technologies connect enterprise locations, but they differ in how they manage performance, resilience, scalability, and cost.
Network Performance and Application Experience
MPLS provides consistent routing and can prioritise critical traffic through quality-of-service policies. This remains valuable for latency-sensitive applications operating between fixed locations.
SD-WAN takes a more dynamic approach. It identifies applications and selects a path according to latency, jitter, packet loss, and bandwidth availability.
This is particularly relevant for Microsoft 365, cloud ERP systems, video conferencing, and other services that may perform poorly when traffic is backhauled through a central data centre.
However, SD-WAN performance still depends on the quality of its underlying connections.
Network Resilience
MPLS resilience usually requires an additional circuit. While this can provide reliable backup connectivity, it also adds recurring cost and may not offer true diversity if both circuits depend on the same carrier infrastructure.
SD-WAN can monitor several links and redirect traffic when one fails or begins to perform poorly.
Some platforms provide additional session-protection capabilities. Peplink SpeedFusion, for example, supports Hot Failover to help supported sessions remain connected when traffic moves between available WAN links. WAN Smoothing can reduce packet loss and jitter, while Bandwidth Bonding can combine multiple links. Available capabilities depend on the Peplink model and service configuration.
Deployment and Scalability
Connecting a new site through MPLS can require feasibility checks, installation, and coordination with the carrier. Provisioning time and available bandwidth may also vary by location.
SD-WAN allows enterprises to use locally available connections and apply configurations centrally. This makes it easier to standardise deployments across stores, factories, warehouses and regional offices.
For businesses opening branches throughout Malaysia, this flexibility can shorten rollout timelines and reduce dependence on a single provider.
Visibility and Network Management
Traditional WAN troubleshooting can involve carrier reports, individual routers, and several management tools. Finding the source of an application problem may take time.
SD-WAN gives network teams a central view of:
- Application usage
- Link performance
- Latency and packet loss
- Bandwidth consumption
- Failover events
- Branch-level performance
This visibility helps teams determine whether an issue comes from the application, the local connection, or the wider WAN.
It also allows policies to be applied consistently across multiple branches instead of configuring each location separately.
Is SD-WAN More Cost-Effective Than MPLS?
The cost difference between SD-WAN and MPLS depends on the network design rather than a single circuit price.
MPLS costs can vary based on:
- Number and location of sites
- Required bandwidth
- Installation and provisioning
- Contract duration
- Service-level commitments
- Backup circuits
- Managed equipment
- Carrier availability
These factors become more significant in multi-site environments, where different branches may have different access options, lead times, and resilience requirements.
SD-WAN also introduces costs for appliances, licences, implementation, monitoring, and support. Its advantage is not simply the ability to use cheaper internet connections.
It gives enterprises more flexibility to combine broadband, dedicated internet, MPLS, fibre, and mobile links according to the needs of each site.
In many cases, the better comparison is not MPLS cost versus SD-WAN cost. It is the total cost of delivering the required application performance, availability, coverage, and operational visibility across the wider network.
When Does MPLS Still Make Sense?
MPLS may remain suitable when an organisation has:
- Stable locations and bandwidth needs
- Established carrier agreements
- Legacy applications centred on a private data centre
- Contractual latency or service-level requirements
- Limited dependence on public cloud applications
- A strong requirement for predictable private connectivity
In these environments, replacing MPLS completely may introduce more complexity than value.
When Should an Enterprise Choose SD-WAN?
SD-WAN is generally better suited to organisations with:
- Multiple branches across Malaysia
- Cloud and SaaS applications
- Frequent site expansion
- Several carrier options
- High availability requirements
- Limited WAN visibility
- Distributed users and workloads
- Rising MPLS costs
It is especially relevant where branch connectivity directly supports retail transactions, manufacturing operations, logistics, healthcare services, or other daily business processes.
Also read: Managed Cyber Security Services: What Malaysian Businesses Actually Get (and What to Look For).
Can SD-WAN Replace MPLS?
Yes, but full replacement is not always necessary.
Many enterprises use a hybrid WAN. Existing MPLS circuits remain in place while broadband, fibre, dedicated internet, or mobile links are added. SD-WAN then applies application policies and selects the most suitable available path.
A hybrid approach can provide a practical migration route while existing contracts remain active.
The right design may also vary by site. Headquarters, factories, retail outlets, warehouses, and temporary locations do not necessarily need the same connectivity model.
SD-WAN vs MPLS: Which WAN Solution Is Right for Your Business?
| Business requirement | Likely approach |
| Stable private traffic between fixed sites | MPLS |
| Cloud-heavy branch operations | SD-WAN |
| Existing MPLS investment | Hybrid WAN |
| Critical applications requiring resilient failover | SD-WAN or hybrid WAN |
| Rapid branch deployment | SD-WAN |
| Strict contracted latency requirements | MPLS or hybrid WAN |
| Different carrier options at each location | SD-WAN |
| Legacy applications centred on a data centre | MPLS or hybrid WAN |
Before migrating, review application dependencies, current contracts, carrier diversity, branch priorities, and the sessions that must remain connected during failover.
Also read: In-House IT vs IT Outsourcing Malaysia: Which Is Right for Your Business?
FAQ
What is Peplink SpeedFusion?
Peplink SpeedFusion combines multiple WAN connections within a secure tunnel. It supports hot failover, WAN smoothing, and bandwidth bonding to improve network availability and performance.
Is MPLS more secure than SD-WAN?
MPLS provides private carrier-managed connectivity, but private does not automatically mean encrypted. SD-WAN commonly uses encrypted tunnels, while both approaches may require firewalls, access controls, segmentation, and threat protection.
Can SD-WAN and MPLS be used together?
Yes. In a hybrid WAN, MPLS remains one of the available transport options while SD-WAN also manages internet, fibre, or cellular connections. This allows organisations to retain existing MPLS investments while adding flexibility and resilience.
Does SD-WAN use the public internet?
It can. SD-WAN may use public internet, dedicated internet, MPLS, cellular, or a combination of these connections. SD-WAN is the management and overlay layer rather than the underlying circuit itself.
How long does it take to migrate from MPLS to SD-WAN?
The timeline depends on the number of branches, existing contracts, circuit availability, application requirements, and deployment approach. Many enterprises begin with a pilot before moving additional sites or reducing MPLS gradually.
What affects the cost of SD-WAN in Malaysia?
Costs depend on the number of locations, appliances, licences, connection types, cellular backup, implementation, monitoring, and support. The comparison should consider the total cost of achieving the required performance and availability.
Does Fortesys provide Peplink SD-WAN solutions?
Yes. Fortesys is an authorised Peplink distributor in Malaysia and supports enterprise SD-WAN, SpeedFusion, network design, deployment, and ongoing optimisation.
Final Thoughts: Choose the WAN Model That Fits Your Operations
The right WAN strategy depends on more than choosing between MPLS and SD-WAN. Application requirements, branch locations, carrier availability, existing contracts, cloud usage, and failover expectations all influence the final design.
MPLS may still suit stable environments that depend on predictable private connectivity. SD-WAN is often a stronger fit for enterprises managing cloud applications, multiple branches, and changing bandwidth needs.
For many organisations, a hybrid WAN provides the most practical transition by retaining MPLS where it still adds value while introducing more flexible connections elsewhere.
Implementation also matters. Before deploying SD-WAN, your provider should assess current traffic patterns, application priorities, branch requirements, carrier options, and business-continuity needs rather than applying the same design to every site.
As an authorised Peplink distributor in Malaysia, Fortesys supports SD-WAN assessment, architecture design, deployment, optimisation, and ongoing support across multi-site environments.
Explore Fortesys' Peplink solutions or speak to a network specialist to assess the right WAN strategy for your organisation.
Is PDPA compliance mandatory in Malaysia?
PDPA compliance is mandatory for organisations processing personal data in commercial transactions covered by the Act. Its application depends on the organisation and activity involved.
How can organisations support PDPA compliance?
Identify where personal data is held, restrict access, segment sensitive systems, secure privileged accounts, monitor network activity, maintain reliable logs, and test breach-response procedures.
What counts as personal data?
Personal data generally includes information that relates directly or indirectly to an identifiable individual, such as contact details, identification numbers, employment records, financial information, student data, and patient records.
Does PDPA require a firewall?
The Act does not prescribe a particular firewall. However, firewalls help organisations restrict unauthorised access, control communication between systems, inspect traffic, and protect environments processing personal data.
What is the penalty for PDPA non-compliance?
Penalties depend on the offence. Under the amended Act, contravening the personal-data protection principles can result in a fine of up to RM1 million, imprisonment for up to three years, or both.
Final Thoughts: Turn PDPA Policy into Enforceable Network Security
PDPA compliance cannot rely on policy documents alone. Organisations also need network infrastructure that can restrict access, separate sensitive systems, detect suspicious activity, and provide reliable evidence when an incident occurs.
Section 9 requires practical protection of personal data, while the 72-hour breach-notification framework depends on rapid detection and investigation. Both obligations are easier to meet when security controls are properly designed, continuously monitored, and supported by clear response processes.
Contact us and request a network security assessment to identify gaps in firewall policies, segmentation, access control, and monitoring across your environment.
