This draft defines the SendHoldtimer and SendHoldTimer_Expires for the BGP state machine. The draft is straightforward and well written but I had one minor nit. In section 3.3, there is a NEW block to be added that begins "If the SendHoldTimer_Expires (Event 29), the local system:". This seems to be incomplete. From similar text in 4271, one fix would be to put the word "occurs" before the comma.