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

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Troubleshooting for MSDP

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Overview

This topic provides targeted solutions for the resolution of common MSDP issues such as unpopulated caches or missing route advertisements.

MSDP SA Cache Not Populated

Problem: MSDP SA cache is not populated on a Cisco IOS XE Catalyst SD-WAN device when a source in a site sends traffic.

Possible Cause: Check if there are any connectivity or configuration issues between the MSDP peers.

Solution:

  1. Check the MSDP peering status between the Cisco IOS XE Catalyst SD-WAN device and the device in non-SD-WAN.

  2. Verify that these commands msdp-interworking and spt-only are configured in the Cisco IOS XE Catalyst SD-WAN device.

Problem: A Cisco IOS XE Catalyst SD-WAN device does not advertise the OMP SA route when it receives a MSDP SA message from a MSDP peer.

Possible Cause: msdp-interworking configuration could be missing.

Solution: Configure the msdp-interworking command in the correct VRF.