ExpressRoute Scalable Gateway #azure #networking

Why It Matters

The scalable gateway lets organizations align network capacity with actual demand, cutting costs while boosting performance and flexibility for Azure‑based workloads.

Key Takeaways

• New ExpressRoute gateway supports auto‑scaling throughput in real-time.
• Each scale unit provides 1 Gbps bandwidth and packet limits.
• Minimum and maximum units configurable for dynamic capacity adjustments.
• Pay‑as‑you‑go model charges only for active scale units.
• Migration from zone‑redundant SKUs to scale‑skew requires zero downtime.

Summary

ExpressRoute’s new scalable gateway replaces the legacy fixed‑throughput SKUs with a dynamic, auto‑scaling model. Customers can now define minimum and maximum scale units, each delivering 1 Gbps of bandwidth, and let Azure automatically adjust instances based on CPU, packet rates, and throughput.

The gateway monitors real‑time metrics and adds or removes instances to match demand, charging only for the active scale units. This granular control eliminates the previous 10 Gbps ceiling and provides finer granularity for capacity planning.

In the video, the presenter notes, “I could set min and max to be the same value… but more likely I’ll use automatic mode,” and emphasizes that switching from zone‑redundant SKUs to the scalable gateway incurs no downtime.

For enterprises, the change translates into lower operational costs, improved network elasticity, and a smoother migration path for existing ExpressRoute deployments.

Original Description

Quick look at the new scalable ExpressRoute Gateway SKU.