HDLC does not perform Error Recovery......?
Dear Sirs.......i have one question about the Chapter 4 of Cisco Press...."Fundamentals of Wan"...in page 90 of this book its written that HDLS does not perform Error Recovery. my question is this that HDLS is data link layer protocol and on the top in Transmission controll protocol there would be TCP or UDP am i right ?. so does HDLC use udp ?. because as i read in previous chapter udp does not perform error recovery but tcp performs this alway....so in short my question is if its written in the book that HDLC does not perform error recovery so which protocol is used by it on transmission layer....Best Regards.