face+mgmt: allow congestion marking parameters to be enabled and set

refs #4465

Change-Id: I9d49135ab32bacb2885b70031c573f7c8709ac1f
diff --git a/daemon/face/udp-channel.cpp b/daemon/face/udp-channel.cpp
index 624b9cd..209aa70 100644
--- a/daemon/face/udp-channel.cpp
+++ b/daemon/face/udp-channel.cpp
@@ -162,7 +162,22 @@
 
   GenericLinkService::Options options;
   options.reliabilityOptions.isEnabled = params.wantLpReliability;
-  options.allowCongestionMarking = m_wantCongestionMarking;
+
+  if (boost::logic::indeterminate(params.wantCongestionMarking)) {
+    // Use default value for this channel if parameter is indeterminate
+    options.allowCongestionMarking = m_wantCongestionMarking;
+  }
+  else {
+    options.allowCongestionMarking = params.wantCongestionMarking;
+  }
+
+  if (params.baseCongestionMarkingInterval) {
+    options.baseCongestionMarkingInterval = *params.baseCongestionMarkingInterval;
+  }
+  if (params.defaultCongestionThreshold) {
+    options.defaultCongestionThreshold = *params.defaultCongestionThreshold;
+  }
+
   auto linkService = make_unique<GenericLinkService>(options);
   auto transport = make_unique<UnicastUdpTransport>(std::move(socket), params.persistency, m_idleFaceTimeout);
   auto face = make_shared<Face>(std::move(linkService), std::move(transport));