Hello,

Have ptp4l running in BC mode providing clock to connected TestUnits (via port 
2) and syncing clock from BC/GM (via port 1)

Did few more iterations of testing (ptp4l in BC mode) by doing ifconfig down. 
Observing PTP4l reporting below error in port 1 connected to BC/GM

ptp4l: [704774.649] port 1: announce timeout
ptp4l: [704774.649] port 1: SLAVE to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES

On debugging further, when port 2 is configured for down state, we call 
raw_close in port_disable, to close the open FDs. This closure is taking around 
600ms to 800ms. This in turn impacts handling on accounce packets on port1 
connected to BC/GM.

Can you please suggest how we can resolve this issue?

regards,
Ramesh 


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