Empirical case of link quality not displaying on SDWAN controller (CTL)
2025-03-29 16:14:00
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Problem Description
The link quality is not displayed on the controller (CTL), and there is no echo for the dis rir sdwan link-quality configuration, meaning the cqi is 0.
Process Analysis
(1) NTP clock synchronization is not configured. Generally, clock synchronization requires the same clock source. For example, headquarters and controller (CTL) synchronize, branches synchronize with headquarters.
(2) Consider that no servicer slot is configured under the UDP tunnel. The board also needs to be configured with a servicer slot; otherwise, the device will not perform identification.
Solution
Resolved after configuring UDP tunneling service slot.