5

In Thread Stack Fundamentals, the four types of devices in a Thread network are outlined on page 5/6:

  • Border Routers
  • Routers
  • Router-eligible End Devices (REEDs)
  • Sleepy End Devices

It is implied by the document that Routers must be able to constantly supply themselves with electricity (hence REEDs must also be able to run constantly if they are upgraded to Routers). However, can REEDs save power and sleep if they aren't currently being used as routers, or must they always be on in case they are needed?

Take, for example, a smart TV supporting Thread, currently acting as a REED. Since no other devices depend on it while it is a REED, can it suspend its network connection and act as a Sleepy End Device, or does the networking component need to be on all the time?

  • since the network devices themselves are responsible for connection and disconnection of dependent devices, they are supposed to be alive and awake! – Prashanth Benny Dec 30 '16 at 10:09
  • 1
    if the network doesnt demand it at all to act as a router, it would be fine for it to sleep and take some rest... :D – Prashanth Benny Dec 30 '16 at 10:23
  • 1
    here is the site which i had a reference for definitions from. i don't know legit the info is. – Prashanth Benny Dec 30 '16 at 10:48
  • 1
    according to m conclusion the network component cannot be turned off. unless there is some other way of interrupting the REED's sleep(like a UART interrupt)! – Prashanth Benny Dec 30 '16 at 11:35
  • 1
    Thank you... I just posted an answer! You may edit the answer since I am quite unsure about the logic behind! – Prashanth Benny Dec 30 '16 at 12:16
4

Can it suspend its network connection and act as a Sleepy End Device, or does the networking component need to be on all the time?

They can be sleepy end devices! but, the Network device is still ON.

According to the definition "Sleepy end devices are host devices. They communicate only through their Parent Router and cannot forward messages for other devices" i.e, their network device is not off!

Sleepy end devices will be communicating with their parent router.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.