"BGP is GPS for internet". It certainly is not? "internal BGP (iBGP) : informs each non-gateway router" It does not? There are no non-gateway routers in clas

"BGP is GPS for internet". It certainly is not? "internal BGP (iBGP) : informs each non-gateway router" It does not? There are no non-gateway routers in classic BGP (without reflectors)? "it updates the AS-path by appending itself to the path list" the commonly used term is "prepending"? "For iBGP, there is a TCP connection between each two routers in the same AS, given the only one of them is a gateway." What is that even supposed to mean? Why all the pseudo-math notation? "That is it. There’s really nothing difficult about BGP in general." This statement is tableflip inducingly inaccurate. There is nothing simple in BGP.