tools: Publish /localhop/ndn-autoconf/routable-prefixes from ndn-autoconfig-server
Change-Id: I2902b91cebf1f4b8ac1a7dabedb0f0cbd0a13b24
Refs: #1954
diff --git a/docs/misc/local-prefix-discovery.rst b/docs/misc/local-prefix-discovery.rst
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+.. _local-prefix-discovery:
+
+Discover local hub prefix
+=========================
+
+Some applications need to discover prefix(es) under which they can publish data
+/ which Interests local hub will be able to forward down to the application.
+In order to discover that, applications need to send an interest for
+``/localhop/ndn-autoconf/routable-prefixes`` prefix. Response data to the
+interest contains a list of prefixes and should be encoded as:
+
+::
+
+ Response ::= DATA-TYPE TLV-LENGTH
+ Name (= /localhop/ndn-autoconf/routable-prefixes/[version])
+ MetaInfo (= ResponseMetaInfo)
+ Content (= ResponseContent)
+ Signature
+
+ ResponseMetaInfo ::= META-INFO-TYPE TLV-LENGTH
+ ContentType (= DATA)
+ FreshnessPeriod (= 5000)
+
+ ResponseContent ::= Name+
+
+.. note::
+ResponseContent should contain at least one Name, which should be routable
+towards the face from which the request has been received. The requester may
+process list of the returned names and pick whichever it wants to use.
+
+For now, the ``/localhop/ndn-autoconf/routable-prefixes`` data is served by
+:ref:`ndn-autoconfig-server`.