Cisco Catalyst SD-WAN Policies Configuration Guide, Releases 26.x and Later

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Cisco Catalyst SD-WAN Policies Configuration Guide, Releases 26.x and Later

How separate interfaces for transmitted and received traffic work

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Describes how separate interfaces can be configured for transmitted and received traffic through a service chain, where traffic flows are tracked independently.


You can use the service command to configure separate interfaces for transmitted and received traffic through a service chain. In this situation, transmitted and received traffic are tracked independently. For more information, see service.

Summary

The key components involved in the separate interface configuration for transmitted and received traffic are:

  • Service chain: Routes traffic through multiple network services with independent interfaces for each direction

  • Transmitted traffic interface: Handles outgoing traffic flow through the service chain

  • Received traffic interface: Handles incoming traffic flow through the service chain

  • Traffic tracking system: Monitors transmitted and received traffic independently

Workflow

Figure 1. Separate Interfaces for Transmitted and Received Traffic