doc: Add rfc5668 to the list

Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org>

diff --git a/doc/user/overview.rst b/doc/user/overview.rst
index 91ca1b89f08de89df475c2a9f59d6a7b118c9391..0fe3a125ebce8f5c6a8eca64faec27623d234d34 100644 (file)
--- a/doc/user/overview.rst
+++ b/doc/user/overview.rst
@@ -341,6 +341,8 @@ BGP
   :t:`The Generalized TTL Security Mechanism (GTSM). V. Gill, J. Heasley, D. Meyer, P. Savola, C. Pingnataro. October 2007.`
 - :rfc:`5575`
   :t:`Dissemination of Flow Specification Rules. P. Marques, N. Sheth, R. Raszuk, B. Greene, J. Mauch, D. McPherson. August 2009`
+- :rfc:`5668`
+  :t:`4-Octet AS Specific BGP Extended Community. Y. Rekhter, S. Sangli, D. Tappan October 2009`
 - :rfc:`6286`
   :t:`Autonomous-System-Wide Unique BGP Identifier for BGP-4. E. Chen, J. Yuan, June 2011.`
 - :rfc:`6608`