interest: define ForwardingHint
ForwardingHint replaces Link and SelectedDelegation.
refs #4054
Change-Id: I958bf93a625f764b58736a44781eb2038670d8c9
diff --git a/link.rst b/link.rst
index f0c2199..ca64b56 100644
--- a/link.rst
+++ b/link.rst
@@ -23,7 +23,7 @@
Link Object is a data packet, whose content contains a list of one or more name delegations: a pair of name and the associate priority.
-The semantical meaning of the delegations depends on the specific use. For example, when LinkObject is used as part of Interest packet, each delegation implies that the requested Data packet can be retrieved by forwarding the interest along the delegation path. Specifics of the forwarding logic for Interests with ``LinkObject`` will be defined in a separated document.
+The LinkObject can be used to derive the ``ForwardingHint`` guider of an Interest packet.
The list of delegations in ``LinkContent`` SHOULD be ordered by preference value in ascending order (i.e., the lowest value first).