RSVP_HOP class = 3.
+-------------+-------------+-------------+-------------+ | IPv4 Next/Previous Hop Address | +-------------+-------------+-------------+-------------+ | Logical Interface Handle | +-------------+-------------+-------------+-------------+
+-------------+-------------+-------------+-------------+ | | + + | | + IPv6 Next/Previous Hop Address + | | + + | | +-------------+-------------+-------------+-------------+ | Logical Interface Handle | +-------------+-------------+-------------+-------------+
This object carries the IP address of the interface through which the last RSVP-knowledgeable hop forwarded this message. The Logical Interface Handle (LIH) is used to distinguish logical outgoing interfaces, as discussed in Sections 3.3 and 3.9. A node receiving an LIH in a Path message saves its value and returns it in the HOP objects of subsequent Resv messages sent to the node that originated the LIH. The LIH should be identically zero if there is no logical interface handle.