Can Piscis SD-WAN coexist with MPLS and legacy WAN?

Created by Chinmay Palkar, Modified on Tue, 4 Nov at 3:22 PM by Chinmay Palkar

Yes, Piscis SD-WAN is purpose-built to coexist with MPLS and legacy WAN infrastructure, enabling a smooth, phased transition without disrupting existing services.

Hybrid WAN Integration:

Piscis SD-WAN supports simultaneous use of MPLS, broadband, 4G/5G, and satellite links. This allows:

- Overlay deployment on top of MPLS without removing it

- Dynamic path selection based on real-time link performance

- Policy-based routing to prioritize critical apps over MPLS and offload bulk traffic to broadband


Legacy Site Interoperability:

For sites not yet migrated to SD-WAN:

- Regional hubs or data centers act as bridge points between SD-WAN and legacy WAN

- Traffic from SD-WAN sites can reach legacy sites via these hubs using traditional routing protocols (e.g., OSPF, BGP)

- No need to reconfigure legacy routers immediately—ideal for staged rollouts


Underlay-Aware Intelligence:

Piscis SD-WAN continuously monitors all underlay paths (including MPLS) for:

- Latency, jitter, and packet loss

- SLA compliance

- Failover readiness

This ensures application-aware routing across both legacy and modern links.


Was this article helpful?

That’s Great!

Thank you for your feedback

Sorry! We couldn't be helpful

Thank you for your feedback

Let us know how can we improve this article!

Select at least one of the reasons
CAPTCHA verification is required.

Feedback sent

We appreciate your effort and will try to fix the article