Question about occasional heartbeat message loss in Zenoh 1.9.0

[JiangHePlate]

Body:

I'm using Zenoh version 1.9.0. On the client side, I'm sending heartbeat messages via Zenoh, and the client reports that the messages are sent successfully. However, on the server side, the heartbeat messages are sometimes not received.

Interestingly, HTTP messages can be sent successfully in the same network environment.

My questions are:

What could be the reason for this intermittent loss of heartbeat messages?

Does Zenoh have stricter requirements for network quality compared to HTTP? If so, what are the specific requirements?

Any insights or suggestions would be greatly appreciated. Thank you!