Article describe the supported Switch Models for TWAMP Light Responder
The following logs can appear when we configured on the unsupported model.
fpc0 PFESVCS: TWAMP gencfg handler NULL
Only specific switch models support the TWAMP Light Responder feature, which is used to measure network performance metrics such as delay and loss.
Please refer to the following article.
https://apps.juniper.net/feature-explorer/feature/390?fn=Two-Way%20Active%20Measurement%20Protocol