3 files changed, 55 insertions, 26 deletions
diff --git a/lib/diameter/doc/src/Makefile b/lib/diameter/doc/src/Makefile
index 59ca660797..d1d5e8f869 100644
--- a/lib/diameter/doc/src/Makefile
+++ b/lib/diameter/doc/src/Makefile
@@ -16,13 +16,8 @@
 #
 # %CopyrightEnd%
 
-ifneq ($(ERL_TOP),)
 include $(ERL_TOP)/make/target.mk
 include $(ERL_TOP)/make/$(TARGET)/otp.mk
-else
-include $(DIAMETER_TOP)/make/target.mk
-include $(DIAMETER_TOP)/make/$(TARGET)/rules.mk
-endif
 
 include ../../vsn.mk
 
@@ -155,11 +150,8 @@ info:
 # ----------------------------------------------------
 # Release Target
 # ---------------------------------------------------- 
-ifneq ($(ERL_TOP),)
+
 include $(ERL_TOP)/make/otp_release_targets.mk
-else
-include $(DIAMETER_TOP)/make/release_targets.mk
-endif
 
 release_docs_spec: $(LOCAL)docs
 	$(INSTALL_DIR) "$(RELSYSDIR)/doc/pdf"
diff --git a/lib/diameter/doc/src/diameter.xml b/lib/diameter/doc/src/diameter.xml
index b8652a7482..161fd94d5a 100644
--- a/lib/diameter/doc/src/diameter.xml
+++ b/lib/diameter/doc/src/diameter.xml
@@ -699,6 +699,35 @@ the application's <seealso marker="diameter_dict">dictionary</seealso>
 file.</p>
 </item>
 
+<tag><c>{sequence, {H,N} | <seealso
+   marker="diameter#evaluable">diameter:evaluable()</seealso>}</c></tag>
+<item>
+<p>
+Specifies a constant value <c>H</c> for the topmost <c>32-N</c> bits of
+of 32-bit End-to-End and Hop-by-Hop identifiers generated
+by the service, either explicity or as a return value of a function
+to be evaluated at <seealso
+marker="diameter#start_service">diameter:start_service/2</seealso>.
+In particular, an identifier <c>Id</c> is mapped to a new identifier
+as follows.</p>
+<code>
+(H bsl N) bor (Id band ((1 bsl N) - 1))
+</code>
+<p>
+Note that RFC 3588 requires that End-to-End identifiers remain unique
+for a period of at least 4 minutes and that this and the call rate
+places a lower bound on the appropriate values of <c>N</c>:
+at a rate of <c>R</c> requests per second an <c>N</c>-bit counter
+traverses all of its values in <c>(1 bsl N) div (R*60)</c> minutes so
+the bound is <c>4*R*60 =&lt; 1 bsl N</c>.</p>
+
+<p><c>N</c> must lie in the range <c>0..32</c> and <c>H</c> must be a
+non-negative integer less than <c>1 bsl (32-N)</c>.</p>
+
+<p>
+Defaults to <c>{0,32}</c>.</p>
+</item>
+
 </taglist>
 
 <marker id="transport_opt"/>
diff --git a/lib/diameter/doc/src/diameter_transport.xml b/lib/diameter/doc/src/diameter_transport.xml
index 9ab750e560..d9b36a1e09 100644
--- a/lib/diameter/doc/src/diameter_transport.xml
+++ b/lib/diameter/doc/src/diameter_transport.xml
@@ -54,14 +54,14 @@ parent).</p>
 <funcs>
 
 <func>
-<name>Mod:start({Type, Ref}, Svc, Opts)
+<name>Mod:start({Type, Ref}, Svc, Config)
          -> {ok, Pid} | {ok, Pid, LAddrs} | {error, Reason}</name>
 <fsummary>Start a transport process.</fsummary>
 <type>
 <v>Type = connect | accept</v>
 <v>Ref = <seealso marker="diameter#transport_ref">diameter:transport_ref()</seealso></v>
 <v>Svc = #diameter_service{}</v>
-<v>Opts = term()</v>
+<v>Config = term()</v>
 <v>Pid = pid()</v>
 <v>LAddrs = [<seealso marker="kernel:inet#type-ip_address">inet:ip_address()</seealso>]</v>
 <v>Reason = term()</v>
@@ -75,38 +75,46 @@ order to establish or accept a transport connection respectively.
 A transport process maintains a connection with a single remote peer.</p>
 
 <p>
-The first argument indicates whether the transport process in question
+<c>Type</c> indicates whether the transport process in question
 is being started for a connecting (<c>connect</c>) or listening
 (<c>accept</c>) transport.
 In the latter case, transport processes are started as required to
-accept connections from multiple peers.
-Ref is in each case the same value that was returned from the
-call to <seealso
-marker="diameter#add_transport">diameter:add_transport/2</seealso>
-that has lead to starting of a transport process.</p>
+accept connections from multiple peers.</p>
 
 <p>
-A transport process must implement the message interface documented below.
-It should retain the pid of its parent, monitor the parent and terminate if
-it dies.
-It should not link to the parent.
-It should exit if its transport connection with its peer is lost.</p>
+Ref is the value that was returned from the call to <seealso
+marker="diameter#add_transport">diameter:add_transport/2</seealso>
+that has lead to starting of a transport process.</p>
 
 <p>
-The capabilities in the <c>#diameter_service{}</c> record are as
-passed to <seealso
+<c>Svc</c> contains the capabilities passed to <seealso
 marker="diameter#start_service">diameter:start_service/2</seealso> and 
 <seealso
 marker="diameter#add_transport">diameter:add_transport/2</seealso>,
-values passed to the latter overriding those passed to the former.
+values passed to the latter overriding those passed to the former.</p>
+
+<p>
+<c>Config</c> is as passed in <c>transport_config</c> tuple in the
+<seealso marker="diameter#transport_opt">diameter:transport_opt()</seealso>
+list passed to <seealso
+marker="diameter#add_transport">diameter:add_transport/2</seealso>.</p>
+
+<p>
 The start function should use the <c>Host-IP-Address</c> list and/or
-<c>Opts</c> to select an appropriate list of local IP addresses,
+<c>Config</c> to select an appropriate list of local IP addresses,
 and should return this list if different from the
 <c>#diameter_service{}</c> addresses.
 The returned list is used to populate <c>Host-IP-Address</c> AVPs in
 outgoing capabilities exchange messages, the
 <c>#diameter_service{}</c> addresses being used otherwise.</p>
 
+<p>
+A transport process must implement the message interface documented below.
+It should retain the pid of its parent, monitor the parent and terminate if
+it dies.
+It should not link to the parent.
+It should exit if its transport connection with its peer is lost.</p>
+
 <marker id="MESSAGES"/>
 </desc>
 </func>