diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c
index 787e1434c..4822a8a8a 100644
--- a/app/test-pmd/parameters.c
+++ b/app/test-pmd/parameters.c
@@ -410,9 +410,14 @@ parse_portnuma_config(const char *q_arg)
 			return -1;
 		}
 		socket_id = (uint8_t)int_fld[FLD_SOCKET];
-		if(socket_id >= max_socket) {
-			printf("Invalid socket id, range is [0, %d]\n",
-				 max_socket - 1);
+		if (new_socket_id(socket_id)) {
+			unsigned int i = 0;
+
+			printf("Invalid socket id, options are: ");
+			for (i = 0; i < num_sockets; i++) {
+				printf("%u%s", socket_ids[i],
+				(i == num_sockets - 1) ? "\n" : ",");
+			}
 			return -1;
 		}
 		port_numa[port_id] = socket_id;
@@ -470,9 +475,14 @@ parse_ringnuma_config(const char *q_arg)
 			return -1;
 		}
 		socket_id = (uint8_t)int_fld[FLD_SOCKET];
-		if (socket_id >= max_socket) {
-			printf("Invalid socket id, range is [0, %d]\n",
-				max_socket - 1);
+		if (new_socket_id(socket_id)) {
+			unsigned int i = 0;
+
+			printf("Invalid socket id, options are: ");
+			for (i = 0; i < num_sockets; i++) {
+				printf("%u%s", socket_ids[i],
+				(i == num_sockets - 1) ? "\n" : ",");
+			}
 			return -1;
 		}
 		ring_flag = (uint8_t)int_fld[FLD_FLAG];
@@ -700,12 +710,20 @@ launch_args_parse(int argc, char** argv)
 					   "invalid ring-numa configuration\n");
 			if (!strcmp(lgopts[opt_idx].name, "socket-num")) {
 				n = atoi(optarg);
-				if((uint8_t)n < max_socket)
+				if (!new_socket_id((uint8_t)n)) {
 					socket_num = (uint8_t)n;
-				else
+				} else {
+					unsigned int i = 0;
+
+					printf("socket id options are: ");
+					for (i = 0; i < num_sockets; i++) {
+						printf("%u%s", socket_ids[i],
+						(i == num_sockets - 1) ?
+						"\n" : ",");
+					}
 					rte_exit(EXIT_FAILURE,
-						"The socket number should be < %d\n",
-						max_socket);
+						"Invalid socket id");
+				}
 			}
 			if (!strcmp(lgopts[opt_idx].name, "mbuf-size")) {
 				n = atoi(optarg);
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index dfe64427d..a556a8aff 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -354,7 +354,8 @@ struct queue_stats_mappings *rx_queue_stats_mappings = rx_queue_stats_mappings_a
 uint16_t nb_tx_queue_stats_mappings = 0;
 uint16_t nb_rx_queue_stats_mappings = 0;
 
-unsigned max_socket = 0;
+unsigned int num_sockets = 0;
+unsigned int socket_ids[RTE_MAX_NUMA_NODES];
 
 #ifdef RTE_LIBRTE_BITRATE
 /* Bitrate statistics */
@@ -377,6 +378,22 @@ static void eth_event_callback(uint8_t port_id,
 static int all_ports_started(void);
 
 /*
+ * Helper function to check if socket is allready discovered.
+ * If yes, return positive value. If not, return zero.
+ */
+int
+new_socket_id(unsigned int socket_id)
+{
+	unsigned int i;
+
+	for (i = 0; i < num_sockets; i++) {
+		if (socket_ids[i] == socket_id)
+			return 0;
+	}
+	return 1;
+}
+
+/*
  * Setup default configuration.
  */
 static void
@@ -388,12 +405,14 @@ set_default_fwd_lcores_config(void)
 
 	nb_lc = 0;
 	for (i = 0; i < RTE_MAX_LCORE; i++) {
-		sock_num = rte_lcore_to_socket_id(i) + 1;
-		if (sock_num > max_socket) {
-			if (sock_num > RTE_MAX_NUMA_NODES)
-				rte_exit(EXIT_FAILURE, "Total sockets greater than %u\n", RTE_MAX_NUMA_NODES);
-			max_socket = sock_num;
+		sock_num = rte_lcore_to_socket_id(i);
+		if (sock_num > RTE_MAX_NUMA_NODES) {
+			rte_exit(EXIT_FAILURE,
+				 "Total sockets greater than %u\n",
+				 RTE_MAX_NUMA_NODES);
 		}
+		if (new_socket_id(sock_num))
+			socket_ids[num_sockets++] = sock_num;
 		if (!rte_lcore_is_enabled(i))
 			continue;
 		if (i == rte_get_master_lcore())
@@ -506,7 +525,7 @@ check_socket_id(const unsigned int socket_id)
 {
 	static int warning_once = 0;
 
-	if (socket_id >= max_socket) {
+	if (new_socket_id(socket_id)) {
 		if (!warning_once && numa_support)
 			printf("Warning: NUMA should be configured manually by"
 			       " using --port-numa-config and"
@@ -591,8 +610,9 @@ init_config(void)
 	if (numa_support) {
 		uint8_t i;
 
-		for (i = 0; i < max_socket; i++)
-			mbuf_pool_create(mbuf_data_size, nb_mbuf_per_pool, i);
+		for (i = 0; i < num_sockets; i++)
+			mbuf_pool_create(mbuf_data_size, nb_mbuf_per_pool,
+					 socket_ids[i]);
 	} else {
 		if (socket_num == UMA_NO_CONFIG)
 			mbuf_pool_create(mbuf_data_size, nb_mbuf_per_pool, 0);
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 8b3d903ef..8186b6bfd 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -341,7 +341,8 @@ extern lcoreid_t nb_lcores; /**< Number of logical cores probed at init time. */
 extern lcoreid_t nb_cfg_lcores; /**< Number of configured logical cores. */
 extern lcoreid_t nb_fwd_lcores; /**< Number of forwarding logical cores. */
 extern unsigned int fwd_lcores_cpuids[RTE_MAX_LCORE];
-extern unsigned max_socket;
+extern unsigned int num_sockets;
+extern unsigned int socket_ids[RTE_MAX_NUMA_NODES];
 
 /*
  * Configuration of Ethernet ports:
@@ -636,6 +637,7 @@ enum print_warning {
 	DISABLED_WARN
 };
 int port_id_is_invalid(portid_t port_id, enum print_warning warning);
+int new_socket_id(unsigned int socket_id);
 
 /*
  * Work-around of a compilation error with ICC on invocations of the
