Usage: SET REJOIN_INTERVAL <seconds>
  This variable determines how long, in seconds, the client should wait
  between channel rejoin attempts.

See also:
  SET REJOIN_BADKEY
  SET REJOIN_BANNED
  SET REJOIN_FULL
  SET REJOIN_INTERVAL
  SET REJOIN_INVITEONLY
  SET REJOIN_UNAVAILABLE
  REJOIN
  JOIN
