doc: Add --v6-rr-semantics option to zebra doc

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/doc/user/zebra.rst b/doc/user/zebra.rst
index 9d927359ba..a2cf3627ac 100644
--- a/doc/user/zebra.rst
+++ b/doc/user/zebra.rst
@@ -47,6 +47,14 @@ Besides the common invocation options (:ref:`common-invocation-options`), the
 
    .. seealso:: :ref:`vrf`
 
+.. option:: --v6-rr-semantics
+
+   The linux kernel is receiving the ability to use the same route
+   replacement semantics for v6 that v4 uses.  If you are using a
+   kernel that supports this functionality then run *Zebra* with this
+   option and we will use Route Replace Semantics instead of delete
+   than add.
+
 .. _interface-commands:
 
 Interface Commands