From c6d7674b2cf703d8ed2430fdca2d2bac1429752b Mon Sep 17 00:00:00 2001
From: Jeffrey Hayes <45800665+JeffreyHayes@users.noreply.github.com>
Date: Wed, 14 Aug 2019 15:34:51 -0400
Subject: [PATCH] [mle] enable state update timer when enabling router role
 (#4094)

The state update timer should be started when enabling router role and
attached to a network.
---
 src/core/thread/mle_router.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/core/thread/mle_router.cpp b/src/core/thread/mle_router.cpp
index 7fe9b36d0..8a76169c9 100644
--- a/src/core/thread/mle_router.cpp
+++ b/src/core/thread/mle_router.cpp
@@ -125,6 +125,11 @@ void MleRouter::SetRouterRoleEnabled(bool aEnabled)
 
         break;
     }
+
+    if (IsRouterRoleEnabled() && IsAttached() && !mStateUpdateTimer.IsRunning())
+    {
+        mStateUpdateTimer.Start(kStateUpdatePeriod);
+    }
 }
 
 otError MleRouter::BecomeRouter(ThreadStatusTlv::Status aStatus)