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Clarify virtual hub router throughput limitations #127846

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Clarify virtual hub router throughput limitations #127846

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2 changes: 1 addition & 1 deletion articles/virtual-wan/virtual-wan-about.md
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Expand Up @@ -112,7 +112,7 @@ Virtual WAN allows transit connectivity between VNets. VNets connect to a virtua

[!INCLUDE [virtual hub router status](../../includes/virtual-wan-hub-router-status.md)]

Every virtual hub router supports an aggregate throughput up to 50 Gbps.
Every virtual hub router supports an aggregate throughput up to 50 Gbps. However, traffic may experience performance degradation if more than 1.5 Gbps is sent in a single TCP flow. See [About virtual hub settings](https://learn.microsoft.com/azure/virtual-wan/hub-settings) for details.

Connectivity between the virtual network connections assumes, by default, a maximum total of 2000 VM workload across all VNets connected to a single virtual hub. **Hub infrastructure units** can be adjusted to support additional VMs. For more information about hub infrastructure units, see [Hub settings](hub-settings.md).

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