diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index f01db2a..a19d32a 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -304,9 +304,9 @@ static void cmd_help_long_parsed(void *parsed_result,
 			"rx_vxlan_port rm (udp_port) (port_id)\n"
 			"    Remove an UDP port for VXLAN packet filter on a port\n\n"
 
-			"tx_vlan set vlan_id (port_id)\n"
-			"    Set hardware insertion of VLAN ID in packets sent"
-			" on a port.\n\n"
+			"tx_vlan set (port_id) vlan_id0[, vlan_id1]\n"
+			"    Set hardware insertion of VLAN IDs (single or double VLAN "
+			"depends on the number of VLAN IDs) in packets sent on a port.\n\n"
 
 			"tx_vlan set pvid port_id vlan_id (on|off)\n"
 			"    Set port based TX VLAN insertion.\n\n"
@@ -2799,8 +2799,8 @@ cmdline_parse_inst_t cmd_rx_vlan_filter = {
 struct cmd_tx_vlan_set_result {
 	cmdline_fixed_string_t tx_vlan;
 	cmdline_fixed_string_t set;
-	uint16_t vlan_id;
 	uint8_t port_id;
+	uint16_t vlan_id;
 };
 
 static void
@@ -2809,6 +2809,13 @@ cmd_tx_vlan_set_parsed(void *parsed_result,
 		       __attribute__((unused)) void *data)
 {
 	struct cmd_tx_vlan_set_result *res = parsed_result;
+	int vlan_offload = rte_eth_dev_get_vlan_offload(res->port_id);
+
+	if (vlan_offload & ETH_VLAN_EXTEND_OFFLOAD) {
+		printf("Error, as QinQ has been enabled.\n");
+		return;
+	}
+
 	tx_vlan_set(res->port_id, res->vlan_id);
 }
 
@@ -2828,13 +2835,69 @@ cmdline_parse_token_num_t cmd_tx_vlan_set_portid =
 cmdline_parse_inst_t cmd_tx_vlan_set = {
 	.f = cmd_tx_vlan_set_parsed,
 	.data = NULL,
-	.help_str = "enable hardware insertion of a VLAN header with a given "
-	"TAG Identifier in packets sent on a port",
+	.help_str = "enable hardware insertion of a single VLAN header "
+		"with a given TAG Identifier in packets sent on a port",
 	.tokens = {
 		(void *)&cmd_tx_vlan_set_tx_vlan,
 		(void *)&cmd_tx_vlan_set_set,
-		(void *)&cmd_tx_vlan_set_vlanid,
 		(void *)&cmd_tx_vlan_set_portid,
+		(void *)&cmd_tx_vlan_set_vlanid,
+		NULL,
+	},
+};
+
+/* *** ENABLE HARDWARE INSERTION OF Double VLAN HEADER IN TX PACKETS *** */
+struct cmd_tx_vlan_set_qinq_result {
+	cmdline_fixed_string_t tx_vlan;
+	cmdline_fixed_string_t set;
+	uint8_t port_id;
+	uint16_t vlan_id0;
+	uint16_t vlan_id1;
+};
+
+static void
+cmd_tx_vlan_set_qinq_parsed(void *parsed_result,
+			    __attribute__((unused)) struct cmdline *cl,
+			    __attribute__((unused)) void *data)
+{
+	struct cmd_tx_vlan_set_qinq_result *res = parsed_result;
+	int vlan_offload = rte_eth_dev_get_vlan_offload(res->port_id);
+
+	if (!(vlan_offload & ETH_VLAN_EXTEND_OFFLOAD)) {
+		printf("Error, as QinQ hasn't been enabled.\n");
+		return;
+	}
+
+	tx_qinq_set(res->port_id, res->vlan_id0, res->vlan_id1);
+}
+
+cmdline_parse_token_string_t cmd_tx_vlan_set_qinq_tx_vlan =
+	TOKEN_STRING_INITIALIZER(struct cmd_tx_vlan_set_qinq_result,
+		tx_vlan, "tx_vlan");
+cmdline_parse_token_string_t cmd_tx_vlan_set_qinq_set =
+	TOKEN_STRING_INITIALIZER(struct cmd_tx_vlan_set_qinq_result,
+		set, "set");
+cmdline_parse_token_num_t cmd_tx_vlan_set_qinq_portid =
+	TOKEN_NUM_INITIALIZER(struct cmd_tx_vlan_set_qinq_result,
+		port_id, UINT8);
+cmdline_parse_token_num_t cmd_tx_vlan_set_qinq_vlanid0 =
+	TOKEN_NUM_INITIALIZER(struct cmd_tx_vlan_set_qinq_result,
+		vlan_id0, UINT16);
+cmdline_parse_token_num_t cmd_tx_vlan_set_qinq_vlanid1 =
+	TOKEN_NUM_INITIALIZER(struct cmd_tx_vlan_set_qinq_result,
+		vlan_id1, UINT16);
+
+cmdline_parse_inst_t cmd_tx_vlan_set_qinq = {
+	.f = cmd_tx_vlan_set_qinq_parsed,
+	.data = NULL,
+	.help_str = "enable hardware insertion of a double VLAN header "
+		"with a given TAG Identifier in packets sent on a port",
+	.tokens = {
+		(void *)&cmd_tx_vlan_set_qinq_tx_vlan,
+		(void *)&cmd_tx_vlan_set_qinq_set,
+		(void *)&cmd_tx_vlan_set_qinq_portid,
+		(void *)&cmd_tx_vlan_set_qinq_vlanid0,
+		(void *)&cmd_tx_vlan_set_qinq_vlanid1,
 		NULL,
 	},
 };
@@ -8782,6 +8845,7 @@ cmdline_parse_ctx_t main_ctx[] = {
 	(cmdline_parse_inst_t *)&cmd_rx_vlan_filter_all,
 	(cmdline_parse_inst_t *)&cmd_rx_vlan_filter,
 	(cmdline_parse_inst_t *)&cmd_tx_vlan_set,
+	(cmdline_parse_inst_t *)&cmd_tx_vlan_set_qinq,
 	(cmdline_parse_inst_t *)&cmd_tx_vlan_reset,
 	(cmdline_parse_inst_t *)&cmd_tx_vlan_set_pvid,
 	(cmdline_parse_inst_t *)&cmd_csum_set,
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index f788ed5..6825a1e 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1732,8 +1732,24 @@ tx_vlan_set(portid_t port_id, uint16_t vlan_id)
 		return;
 	if (vlan_id_is_invalid(vlan_id))
 		return;
+	tx_vlan_reset(port_id);
 	ports[port_id].tx_ol_flags |= TESTPMD_TX_OFFLOAD_INSERT_VLAN;
-	ports[port_id].tx_vlan_id = vlan_id;
+	ports[port_id].tx_vlan_id0 = vlan_id;
+}
+
+void
+tx_qinq_set(portid_t port_id, uint16_t vlan_id0, uint16_t vlan_id1)
+{
+	if (port_id_is_invalid(port_id, ENABLED_WARN))
+		return;
+	if (vlan_id_is_invalid(vlan_id0))
+		return;
+	if (vlan_id_is_invalid(vlan_id1))
+		return;
+	tx_vlan_reset(port_id);
+	ports[port_id].tx_ol_flags |= TESTPMD_TX_OFFLOAD_INSERT_QINQ;
+	ports[port_id].tx_vlan_id0 = vlan_id0;
+	ports[port_id].tx_vlan_id1 = vlan_id1;
 }
 
 void
@@ -1741,7 +1757,10 @@ tx_vlan_reset(portid_t port_id)
 {
 	if (port_id_is_invalid(port_id, ENABLED_WARN))
 		return;
-	ports[port_id].tx_ol_flags &= ~TESTPMD_TX_OFFLOAD_INSERT_VLAN;
+	ports[port_id].tx_ol_flags &= ~(TESTPMD_TX_OFFLOAD_INSERT_VLAN |
+				TESTPMD_TX_OFFLOAD_INSERT_QINQ);
+	ports[port_id].tx_vlan_id0 = 0;
+	ports[port_id].tx_vlan_id1 = 0;
 }
 
 void
diff --git a/app/test-pmd/flowgen.c b/app/test-pmd/flowgen.c
index f24b00c..66a4687 100644
--- a/app/test-pmd/flowgen.c
+++ b/app/test-pmd/flowgen.c
@@ -136,7 +136,7 @@ pkt_burst_flow_gen(struct fwd_stream *fs)
 	struct ether_hdr *eth_hdr;
 	struct ipv4_hdr *ip_hdr;
 	struct udp_hdr *udp_hdr;
-	uint16_t vlan_tci;
+	uint16_t vlan_tci0, vlan_tci1;
 	uint16_t ol_flags;
 	uint16_t nb_rx;
 	uint16_t nb_tx;
@@ -162,7 +162,8 @@ pkt_burst_flow_gen(struct fwd_stream *fs)
 		rte_pktmbuf_free(pkts_burst[i]);
 
 	mbp = current_fwd_lcore()->mbp;
-	vlan_tci = ports[fs->tx_port].tx_vlan_id;
+	vlan_tci0 = ports[fs->tx_port].tx_vlan_id0;
+	vlan_tci1 = ports[fs->tx_port].tx_vlan_id1;
 	ol_flags = ports[fs->tx_port].tx_ol_flags;
 
 	for (nb_pkt = 0; nb_pkt < nb_pkt_per_burst; nb_pkt++) {
@@ -207,7 +208,8 @@ pkt_burst_flow_gen(struct fwd_stream *fs)
 		pkt->nb_segs		= 1;
 		pkt->pkt_len		= pkt_size;
 		pkt->ol_flags		= ol_flags;
-		pkt->vlan_tci0		= vlan_tci;
+		pkt->vlan_tci0		= vlan_tci0;
+		pkt->vlan_tci0          = vlan_tci1;
 		pkt->l2_len		= sizeof(struct ether_hdr);
 		pkt->l3_len		= sizeof(struct ipv4_hdr);
 		pkts_burst[nb_pkt]	= pkt;
diff --git a/app/test-pmd/macfwd.c b/app/test-pmd/macfwd.c
index 590b613..5eaa70a 100644
--- a/app/test-pmd/macfwd.c
+++ b/app/test-pmd/macfwd.c
@@ -110,6 +110,8 @@ pkt_burst_mac_forward(struct fwd_stream *fs)
 	txp = &ports[fs->tx_port];
 	if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_VLAN)
 		ol_flags = PKT_TX_VLAN_PKT;
+	if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_QINQ)
+		ol_flags |= PKT_TX_QINQ_PKT;
 	for (i = 0; i < nb_rx; i++) {
 		mb = pkts_burst[i];
 		eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
@@ -120,7 +122,8 @@ pkt_burst_mac_forward(struct fwd_stream *fs)
 		mb->ol_flags = ol_flags;
 		mb->l2_len = sizeof(struct ether_hdr);
 		mb->l3_len = sizeof(struct ipv4_hdr);
-		mb->vlan_tci0 = txp->tx_vlan_id;
+		mb->vlan_tci0 = txp->tx_vlan_id0;
+		mb->vlan_tci1 = txp->tx_vlan_id1;
 	}
 	nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
 	fs->tx_packets += nb_tx;
diff --git a/app/test-pmd/macswap.c b/app/test-pmd/macswap.c
index c355399..fcdb155 100644
--- a/app/test-pmd/macswap.c
+++ b/app/test-pmd/macswap.c
@@ -110,6 +110,8 @@ pkt_burst_mac_swap(struct fwd_stream *fs)
 	txp = &ports[fs->tx_port];
 	if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_VLAN)
 		ol_flags = PKT_TX_VLAN_PKT;
+	if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_QINQ)
+		ol_flags |= PKT_TX_QINQ_PKT;
 	for (i = 0; i < nb_rx; i++) {
 		mb = pkts_burst[i];
 		eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
@@ -122,7 +124,8 @@ pkt_burst_mac_swap(struct fwd_stream *fs)
 		mb->ol_flags = ol_flags;
 		mb->l2_len = sizeof(struct ether_hdr);
 		mb->l3_len = sizeof(struct ipv4_hdr);
-		mb->vlan_tci0 = txp->tx_vlan_id;
+		mb->vlan_tci0 = txp->tx_vlan_id0;
+		mb->vlan_tci1 = txp->tx_vlan_id1;
 	}
 	nb_tx = rte_eth_tx_burst(fs->tx_port, fs->tx_queue, pkts_burst, nb_rx);
 	fs->tx_packets += nb_tx;
diff --git a/app/test-pmd/rxonly.c b/app/test-pmd/rxonly.c
index aa2cf7f..41d3874 100644
--- a/app/test-pmd/rxonly.c
+++ b/app/test-pmd/rxonly.c
@@ -160,6 +160,9 @@ pkt_burst_receive(struct fwd_stream *fs)
 		}
 		if (ol_flags & PKT_RX_VLAN_PKT)
 			printf(" - VLAN tci=0x%x", mb->vlan_tci0);
+		if (ol_flags & PKT_RX_QINQ_PKT)
+			printf(" - QinQ VLAN tci0=0x%x, VLAN tci1=0x%x",
+					mb->vlan_tci0, mb->vlan_tci1);
 		if (is_encapsulation) {
 			struct ipv4_hdr *ipv4_hdr;
 			struct ipv6_hdr *ipv6_hdr;
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index 389fc24..890fa3e 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -132,6 +132,8 @@ struct fwd_stream {
 #define TESTPMD_TX_OFFLOAD_PARSE_TUNNEL      0x0020
 /** Insert VLAN header in forward engine */
 #define TESTPMD_TX_OFFLOAD_INSERT_VLAN       0x0040
+/** Insert double VLAN header in forward engine */
+#define TESTPMD_TX_OFFLOAD_INSERT_QINQ       0x0080
 
 /**
  * The data structure associated with each port.
@@ -148,7 +150,8 @@ struct rte_port {
 	unsigned int            socket_id;  /**< For NUMA support */
 	uint16_t                tx_ol_flags;/**< TX Offload Flags (TESTPMD_TX_OFFLOAD...). */
 	uint16_t                tso_segsz;  /**< MSS for segmentation offload. */
-	uint16_t                tx_vlan_id; /**< Tag Id. in TX VLAN packets. */
+	uint16_t                tx_vlan_id0;/**< The (outer) tag ID */
+	uint16_t                tx_vlan_id1;/**< The inner tag ID */
 	void                    *fwd_ctx;   /**< Forwarding mode context */
 	uint64_t                rx_bad_ip_csum; /**< rx pkts with bad ip checksum  */
 	uint64_t                rx_bad_l4_csum; /**< rx pkts with bad l4 checksum */
@@ -512,6 +515,7 @@ int rx_vft_set(portid_t port_id, uint16_t vlan_id, int on);
 void vlan_extend_set(portid_t port_id, int on);
 void vlan_tpid_set(portid_t port_id, uint16_t tp_id);
 void tx_vlan_set(portid_t port_id, uint16_t vlan_id);
+void tx_qinq_set(portid_t port_id, uint16_t vlan_id0, uint16_t vlan_id1);
 void tx_vlan_reset(portid_t port_id);
 void tx_vlan_pvid_set(portid_t port_id, uint16_t vlan_id, int on);
 
diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c
index 4a2827f..9c7a86e 100644
--- a/app/test-pmd/txonly.c
+++ b/app/test-pmd/txonly.c
@@ -202,7 +202,7 @@ pkt_burst_transmit(struct fwd_stream *fs)
 	struct ether_hdr eth_hdr;
 	uint16_t nb_tx;
 	uint16_t nb_pkt;
-	uint16_t vlan_tci;
+	uint16_t vlan_tci0, vlan_tci1;
 	uint64_t ol_flags = 0;
 	uint8_t  i;
 #ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
@@ -217,9 +217,12 @@ pkt_burst_transmit(struct fwd_stream *fs)
 
 	mbp = current_fwd_lcore()->mbp;
 	txp = &ports[fs->tx_port];
-	vlan_tci = txp->tx_vlan_id;
+	vlan_tci0 = txp->tx_vlan_id0;
+	vlan_tci1 = txp->tx_vlan_id1;
 	if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_VLAN)
 		ol_flags = PKT_TX_VLAN_PKT;
+	if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_QINQ)
+		ol_flags |= PKT_TX_QINQ_PKT;
 	for (nb_pkt = 0; nb_pkt < nb_pkt_per_burst; nb_pkt++) {
 		pkt = tx_mbuf_alloc(mbp);
 		if (pkt == NULL) {
@@ -266,7 +269,8 @@ pkt_burst_transmit(struct fwd_stream *fs)
 		pkt->nb_segs = tx_pkt_nb_segs;
 		pkt->pkt_len = tx_pkt_length;
 		pkt->ol_flags = ol_flags;
-		pkt->vlan_tci0  = vlan_tci;
+		pkt->vlan_tci0 = vlan_tci0;
+		pkt->vlan_tci1 = vlan_tci1;
 		pkt->l2_len = sizeof(struct ether_hdr);
 		pkt->l3_len = sizeof(struct ipv4_hdr);
 		pkts_burst[nb_pkt] = pkt;
