nfdc: setting default expiration time to time::milliseconds::max()
refs #1727
Change-Id: I6da174d18053fa05cf10804d398605d076475fe8
diff --git a/docs/manpages/nfdc.rst b/docs/manpages/nfdc.rst
index 9de9e0c..67d691c 100644
--- a/docs/manpages/nfdc.rst
+++ b/docs/manpages/nfdc.rst
@@ -39,7 +39,8 @@
Cost for the RIB entry (default is 0).
``-e <expiration time>``
- Expiration time of the RIB entry in milliseconds (default is 3600000).
+ Expiration time of the RIB entry in milliseconds. If not specified, the entry remains in FIB
+ for the lifetime of the associated face.
``-o <origin>``
Origin of the registration request (default is 255).