> Hi, > > In RFC6830, Section 5.4.1, it says: > > "the ITR will drop the packet > when the size is greater than L and send an ICMP Too Big message to > the source with a value of S, where S is (L - H)." > > Shouldn't it be: "when the size is greater than (L - H)" ?
L is the size of the packet that will leave the ITR so it won't be fragmented by the ITR or any intermediate routers. S is the size of the packet that must be received by the ITR to avoid fragmentation. L-H is S. So if S + H (calculated by the ITR is L) is greater than the effective MTU, that is when the packet is dropped. That is what the text says. You can explain this in terms of S, of (L-H), or in terms of L. We chose to describe it by how the packet leaves the ITR, in terms of L. Dino _______________________________________________ lisp mailing list [email protected] https://www.ietf.org/mailman/listinfo/lisp
