+-------------+ +---------------+ | |<-(1)--- DOTS signal ------>| | | | channel session 1 | | | |<=(2)== redirect to B ======| | | DOTS client | | DOTS server A | | |X-(4)--- DOTS signal ------X| | | | channel session 1 | | | | | | +-------------+ +---------------+ ^ | (3) DOTS signal channel | session 2 v +---------------+ | DOTS server B | +---------------+