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Cisco SD-WAN
Product Documentation
Viptela Documentation


vpn tcp-optimization—Fine-tune TCP to decrease round-trip latency and improve throughput for TCP traffic (on vEdge routers only). You can configure TCP optimization in service-side VPNs only (VPNs other than VPN 0 and VPN 512).

Optimizing TCP traffic can be useful for improving the performance of SaaS applications, transcontinental links, and high-latency transport devices such as VSAT satellite communications systems.

By default, TCP optimization is disabled.

To configure TCP optimization for individual traffic flows rather than across a VPN, create a centralized data policy that includes the tcp-opt action.

vManage Feature Template

For vEdge routers only:

Configuration ► Templates ► VPN

Command Hierarchy

vpn vpn-id



Operational Commands

show app tcp-opt


Optimize TCP traffic in VPN 1:

vEdge# show running-config vpn 1
vpn 1

Release Information

Command introduced in Viptela Software Release 17.2.​

Additional Information

See the Configuring Centralized Data Policy and Configuring TCP Optimization articles for your software release.

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