
Introduction and Overview n 11
per se does not attempt to recover from these types of errors. e acknowledgment
of packets delivered and the recovery of lost packets is done by a higher-layer pro
-
tocol, such as TCP [MSD200401]. From a packet-forwarding perspective, IPv6
operates just like IPv4. An IPv6 packet, also known as an IPv6 datagram, consists
of an IPv6 header and an IPv6 payload, as shown Figure 1.3.
Table 1.1 Basic IPv6 Terminology
Address An IP layer identifier for an interface or a set of interfaces.
Host Any node that is not a router.
Interface A node’s attachment to a link.
Link A communication facility or medium over which nodes can ...