Routing Configuration Guide, Cisco Catalyst SD-WAN Releases 17.x

Feature history for symmetric routing

Updated: February 6, 2026

Overview

Lists the development milestones and release information for symmetric routing, including feature description.

This table describes the developments of this feature, by release.

Table 1. Feature history
Feature name	Release information	Description
Symmetric Routing	Cisco IOS XE Catalyst SD-WAN Release 17.12.1a Cisco Catalyst SD-WAN Control Components Release 20.12.1	You can use affinity groups, affinity group preferences, and RIB metric translation to ensure devices route traffic flows symmetrically across the network. Symmetric routing supports a wide range of network topologies, including Multi-Region Fabric. Transport gateways translate RIB metrics into control plane protocols such as BGP and OSPF to extend symmetric routing beyond the overlay network. This translation applies the path-preference configuration to routers outside the overlay network, including routers in a data center LAN.

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