Modified start_topo.py to make MAC address and IP address of host configurable.

Change-Id: I2725b50e09dafd8c09c355cc794193c5781820b4
diff --git a/cluster-mgmt/onos-cluster.sh b/cluster-mgmt/onos-cluster.sh
index 6c23cdc..f49c07b 100755
--- a/cluster-mgmt/onos-cluster.sh
+++ b/cluster-mgmt/onos-cluster.sh
@@ -191,6 +191,10 @@
   sed -i -e "s|__BACKEND__|${CLUSTER_BACKEND}|" ${tempfile}
   sed -i -e "s|__ZK_HOSTS__|${zk_hosts}|" ${tempfile}
   sed -i -e "s|__RAMCLOUD_PROTOCOL__|${CLUSTER_RC_PROTOCOL}|" ${tempfile}
+  sed -i -e "s|__RAMCLOUD_IP__|${rc_ip}|" ${tempfile}
+  sed -i -e "s|__RAMCLOUD_COORD_PORT__|${rc_coord_port}|" ${tempfile}
+  sed -i -e "s|__RAMCLOUD_SERVER_PORT__|${rc_server_port}|" ${tempfile}
+  sed -i -e "s|__RAMCLOUD_SERVER_REPLICAS__|${CLUSTER_RC_SERVER_REPLICAS}|" ${tempfile}
   
   # Filling RAMCloud parameters
   local host_role=$(read-conf ${CLUSTER_CONF} "cluster.${host}.role")