[DCCP]: Update documentation

[mirror_ubuntu-artful-kernel.git] / Documentation / networking / dccp.txt

diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index afb66f9a8aff5aa3f32ea32ea65784ac80d6131e..fdc93beec05767be426b75dc4baebbddb495ea3e 100644 (file)
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -19,19 +19,23 @@ for real time and multimedia traffic.
 
 It has a base protocol and pluggable congestion control IDs (CCIDs).
 
-It is at proposed standard RFC status and the homepage for DCCP as a protocol
-is at:
-       http://www.read.cs.ucla.edu/dccp/
+DCCP is a Proposed Standard (RFC 2026), and the homepage for DCCP as a protocol
+is at http://www.ietf.org/html.charters/dccp-charter.html
 
 Missing features
 ================
 
-The DCCP implementation does not currently have all the features that are in
-the RFC.
+The Linux DCCP implementation does not currently support all the features that are
+specified in RFCs 4340...42.
 
 The known bugs are at:
        http://linux-net.osdl.org/index.php/TODO#DCCP
 
+For more up-to-date versions of the DCCP implementation, please consider using
+the experimental DCCP test tree; instructions for checking this out are on:
+http://linux-net.osdl.org/index.php/DCCP_Testing#Experimental_DCCP_source_tree
+
+
 Socket options
 ==============
 
@@ -72,6 +76,8 @@ DCCP_SOCKOPT_CCID_TX_INFO
        Returns a `struct tfrc_tx_info' in optval; the buffer for optval and
        optlen must be set to at least sizeof(struct tfrc_tx_info).
 
+On unidirectional connections it is useful to close the unused half-connection
+via shutdown (SHUT_WR or SHUT_RD): this will reduce per-packet processing costs.
 
 Sysctl variables
 ================