My Kasli SoC master reports:

[ 11.150980s] INFO(runtime::rtio_mgt::drtio): [LINK#0] remote replied after 33 packets

I have noticed that the above number of packets stays roughly the same no matter which type of SFP+ hardware we use to connect master and satellite. In particular, we have tested several different cables of the following types:

  • simplex BiDi single-mode around 1300 nm
  • duplex multimode around 850 nm

However, the number of packets can also be 0 or 1 instead of ~30 for other SFP bays and/or satellites.

Question: As users, do we need to worry about the number of packets? Or is any DRTIO link a good DRTIO link?