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Definition: thread


(1) In a multithreaded system, a thread is one process that occurs simultaneously with other processes. See multithreading.

(2) A sequence of messages on the same topic in an email, newsgroup, forum, blog or groupware program. See threaded email and message thread.

(3) For Meta's social network, see Threads.

(4) (Thread) A low-power smart home and IoT network protocol developed by Nest Labs. Launched in 2015 and supporting the IP protocol (IPv6), Thread is an alternative to Wi-Fi for low-power devices that rely on batteries. Based on IEEE 802.15.4, a Thread network can support up to 250 devices and be configured in a star or mesh topology. Encryption is based on AES-128. Thread uses the same radio technology as Zigbee but with IP connectivity.

Thread Border Routers
To connect a Thread network to a home network router via Wi-Fi or Ethernet, a Thread border router is required. Any device that supports the Thread standard has a constant power supply and a connection to the home IP network can be a border router. Amazon Echo and Google Nest devices, along with Apple HomePods and Samsung SmartThings, can be activated as a border router. See Zigbee, Matter, IPv6 and 6LoWPAN.