diff --git a/examples/l2fwd-jobstats/main.c b/examples/l2fwd-jobstats/main.c
index 7b59f4e..9a6e6ea 100644
--- a/examples/l2fwd-jobstats/main.c
+++ b/examples/l2fwd-jobstats/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -99,8 +99,6 @@ static unsigned int l2fwd_rx_queue_per_lcore = 1;
 
 struct mbuf_table {
 	uint64_t next_flush_time;
-	unsigned len;
-	struct rte_mbuf *mbufs[MAX_PKT_BURST];
 };
 
 #define MAX_RX_QUEUE_PER_LCORE 16
@@ -373,58 +371,12 @@ show_stats_cb(__rte_unused void *param)
 	rte_eal_alarm_set(timer_period * US_PER_S, show_stats_cb, NULL);
 }
 
-/* Send the burst of packets on an output interface */
-static void
-l2fwd_send_burst(struct lcore_queue_conf *qconf, uint8_t port)
-{
-	struct mbuf_table *m_table;
-	uint16_t ret;
-	uint16_t queueid = 0;
-	uint16_t n;
-
-	m_table = &qconf->tx_mbufs[port];
-	n = m_table->len;
-
-	m_table->next_flush_time = rte_get_timer_cycles() + drain_tsc;
-	m_table->len = 0;
-
-	ret = rte_eth_tx_burst(port, queueid, m_table->mbufs, n);
-
-	port_statistics[port].tx += ret;
-	if (unlikely(ret < n)) {
-		port_statistics[port].dropped += (n - ret);
-		do {
-			rte_pktmbuf_free(m_table->mbufs[ret]);
-		} while (++ret < n);
-	}
-}
-
-/* Enqueue packets for TX and prepare them to be sent */
-static int
-l2fwd_send_packet(struct rte_mbuf *m, uint8_t port)
-{
-	const unsigned lcore_id = rte_lcore_id();
-	struct lcore_queue_conf *qconf = &lcore_queue_conf[lcore_id];
-	struct mbuf_table *m_table = &qconf->tx_mbufs[port];
-	uint16_t len = qconf->tx_mbufs[port].len;
-
-	m_table->mbufs[len] = m;
-
-	len++;
-	m_table->len = len;
-
-	/* Enough pkts to be sent. */
-	if (unlikely(len == MAX_PKT_BURST))
-		l2fwd_send_burst(qconf, port);
-
-	return 0;
-}
-
 static void
 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 {
 	struct ether_hdr *eth;
 	void *tmp;
+	int sent;
 	unsigned dst_port;
 
 	dst_port = l2fwd_dst_ports[portid];
@@ -437,7 +389,9 @@ l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 	/* src addr */
 	ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 
-	l2fwd_send_packet(m, (uint8_t) dst_port);
+	sent = rte_eth_tx_buffer(dst_port, 0, m);
+	if (sent)
+		port_statistics[dst_port].tx += sent;
 }
 
 static void
@@ -513,6 +467,8 @@ l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg)
 	struct lcore_queue_conf *qconf;
 	struct mbuf_table *m_table;
 	uint8_t portid;
+	unsigned i;
+	uint32_t sent;
 
 	lcore_id = rte_lcore_id();
 	qconf = &lcore_queue_conf[lcore_id];
@@ -522,12 +478,19 @@ l2fwd_flush_job(__rte_unused struct rte_timer *timer, __rte_unused void *arg)
 	now = rte_get_timer_cycles();
 	lcore_id = rte_lcore_id();
 	qconf = &lcore_queue_conf[lcore_id];
-	for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
-		m_table = &qconf->tx_mbufs[portid];
-		if (m_table->len == 0 || m_table->next_flush_time <= now)
+
+	for (i = 0; i < qconf->n_rx_port; i++) {
+		m_table = &qconf->tx_mbufs[i];
+
+		if (m_table->next_flush_time <= now)
 			continue;
+		m_table->next_flush_time = rte_get_timer_cycles() + drain_tsc;
 
-		l2fwd_send_burst(qconf, portid);
+		portid = qconf->rx_port_list[i];
+		portid = l2fwd_dst_ports[portid];
+		sent = rte_eth_tx_buffer_flush(portid, 0);
+		if (sent)
+			port_statistics[portid].tx += sent;
 	}
 
 
diff --git a/examples/l2fwd-keepalive/main.c b/examples/l2fwd-keepalive/main.c
index f4d52f2..b59ff6d 100644
--- a/examples/l2fwd-keepalive/main.c
+++ b/examples/l2fwd-keepalive/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -97,17 +97,11 @@ static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
 
 static unsigned int l2fwd_rx_queue_per_lcore = 1;
 
-struct mbuf_table {
-	unsigned len;
-	struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
 #define MAX_RX_QUEUE_PER_LCORE 16
 #define MAX_TX_QUEUE_PER_PORT 16
 struct lcore_queue_conf {
 	unsigned n_rx_port;
 	unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
-	struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
 
 } __rte_cache_aligned;
 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
@@ -132,7 +126,7 @@ struct rte_mempool *l2fwd_pktmbuf_pool = NULL;
 struct l2fwd_port_statistics {
 	uint64_t tx;
 	uint64_t rx;
-	uint64_t dropped;
+	unsigned long dropped;
 } __rte_cache_aligned;
 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 
@@ -192,57 +186,12 @@ print_stats(__attribute__((unused)) struct rte_timer *ptr_timer,
 	printf("\n====================================================\n");
 }
 
-/* Send the burst of packets on an output interface */
-static int
-l2fwd_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port)
-{
-	struct rte_mbuf **m_table;
-	unsigned ret;
-	unsigned queueid = 0;
-
-	m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
-	ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n);
-	port_statistics[port].tx += ret;
-	if (unlikely(ret < n)) {
-		port_statistics[port].dropped += (n - ret);
-		do {
-			rte_pktmbuf_free(m_table[ret]);
-		} while (++ret < n);
-	}
-
-	return 0;
-}
-
-/* Enqueue packets for TX and prepare them to be sent */
-static int
-l2fwd_send_packet(struct rte_mbuf *m, uint8_t port)
-{
-	unsigned lcore_id, len;
-	struct lcore_queue_conf *qconf;
-
-	lcore_id = rte_lcore_id();
-
-	qconf = &lcore_queue_conf[lcore_id];
-	len = qconf->tx_mbufs[port].len;
-	qconf->tx_mbufs[port].m_table[len] = m;
-	len++;
-
-	/* enough pkts to be sent */
-	if (unlikely(len == MAX_PKT_BURST)) {
-		l2fwd_send_burst(qconf, MAX_PKT_BURST, port);
-		len = 0;
-	}
-
-	qconf->tx_mbufs[port].len = len;
-	return 0;
-}
-
 static void
 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 {
 	struct ether_hdr *eth;
 	void *tmp;
+	int sent;
 	unsigned dst_port;
 
 	dst_port = l2fwd_dst_ports[portid];
@@ -255,7 +204,9 @@ l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 	/* src addr */
 	ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 
-	l2fwd_send_packet(m, (uint8_t) dst_port);
+	sent = rte_eth_tx_buffer(dst_port, 0, m);
+	if (sent)
+		port_statistics[dst_port].tx += sent;
 }
 
 /* main processing loop */
@@ -265,6 +216,7 @@ l2fwd_main_loop(void)
 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 	struct rte_mbuf *m;
 	unsigned lcore_id;
+	int sent;
 	uint64_t prev_tsc, diff_tsc, cur_tsc;
 	unsigned i, j, portid, nb_rx;
 	struct lcore_queue_conf *qconf;
@@ -312,13 +264,12 @@ l2fwd_main_loop(void)
 		diff_tsc = cur_tsc - prev_tsc;
 		if (unlikely(diff_tsc > drain_tsc)) {
 
-			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
-				if (qconf->tx_mbufs[portid].len == 0)
-					continue;
-				l2fwd_send_burst(&lcore_queue_conf[lcore_id],
-						 qconf->tx_mbufs[portid].len,
-						 (uint8_t) portid);
-				qconf->tx_mbufs[portid].len = 0;
+			for (i = 0; i < qconf->n_rx_port; i++) {
+				portid = qconf->rx_port_list[i];
+				portid = l2fwd_dst_ports[portid];
+				sent = rte_eth_tx_buffer_flush(portid, 0);
+				if (sent)
+					port_statistics[portid].tx += sent;
 			}
 
 			prev_tsc = cur_tsc;
@@ -713,6 +664,10 @@ main(int argc, char **argv)
 				"rte_eth_tx_queue_setup:err=%d, port=%u\n",
 				ret, (unsigned) portid);
 
+		rte_eth_tx_buffer_set_err_callback(portid, 0,
+				rte_eth_count_unsent_packet_callback,
+				&port_statistics[portid].dropped);
+
 		/* Start device */
 		ret = rte_eth_dev_start(portid);
 		if (ret < 0)
diff --git a/examples/l2fwd/main.c b/examples/l2fwd/main.c
index 720fd5a..e6dce27 100644
--- a/examples/l2fwd/main.c
+++ b/examples/l2fwd/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -95,17 +95,11 @@ static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
 
 static unsigned int l2fwd_rx_queue_per_lcore = 1;
 
-struct mbuf_table {
-	unsigned len;
-	struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
 #define MAX_RX_QUEUE_PER_LCORE 16
 #define MAX_TX_QUEUE_PER_PORT 16
 struct lcore_queue_conf {
 	unsigned n_rx_port;
 	unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
-	struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
 
 } __rte_cache_aligned;
 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
@@ -130,7 +124,7 @@ struct rte_mempool * l2fwd_pktmbuf_pool = NULL;
 struct l2fwd_port_statistics {
 	uint64_t tx;
 	uint64_t rx;
-	uint64_t dropped;
+	unsigned long dropped;
 } __rte_cache_aligned;
 struct l2fwd_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 
@@ -185,57 +179,12 @@ print_stats(void)
 	printf("\n====================================================\n");
 }
 
-/* Send the burst of packets on an output interface */
-static int
-l2fwd_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port)
-{
-	struct rte_mbuf **m_table;
-	unsigned ret;
-	unsigned queueid =0;
-
-	m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
-	ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n);
-	port_statistics[port].tx += ret;
-	if (unlikely(ret < n)) {
-		port_statistics[port].dropped += (n - ret);
-		do {
-			rte_pktmbuf_free(m_table[ret]);
-		} while (++ret < n);
-	}
-
-	return 0;
-}
-
-/* Enqueue packets for TX and prepare them to be sent */
-static int
-l2fwd_send_packet(struct rte_mbuf *m, uint8_t port)
-{
-	unsigned lcore_id, len;
-	struct lcore_queue_conf *qconf;
-
-	lcore_id = rte_lcore_id();
-
-	qconf = &lcore_queue_conf[lcore_id];
-	len = qconf->tx_mbufs[port].len;
-	qconf->tx_mbufs[port].m_table[len] = m;
-	len++;
-
-	/* enough pkts to be sent */
-	if (unlikely(len == MAX_PKT_BURST)) {
-		l2fwd_send_burst(qconf, MAX_PKT_BURST, port);
-		len = 0;
-	}
-
-	qconf->tx_mbufs[port].len = len;
-	return 0;
-}
-
 static void
 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 {
 	struct ether_hdr *eth;
 	void *tmp;
+	int sent;
 	unsigned dst_port;
 
 	dst_port = l2fwd_dst_ports[portid];
@@ -248,7 +197,9 @@ l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 	/* src addr */
 	ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 
-	l2fwd_send_packet(m, (uint8_t) dst_port);
+	sent = rte_eth_tx_buffer(dst_port, 0, m);
+	if (sent)
+		port_statistics[dst_port].tx += sent;
 }
 
 /* main processing loop */
@@ -258,6 +209,7 @@ l2fwd_main_loop(void)
 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 	struct rte_mbuf *m;
 	unsigned lcore_id;
+	int sent;
 	uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
 	unsigned i, j, portid, nb_rx;
 	struct lcore_queue_conf *qconf;
@@ -277,7 +229,6 @@ l2fwd_main_loop(void)
 	RTE_LOG(INFO, L2FWD, "entering main loop on lcore %u\n", lcore_id);
 
 	for (i = 0; i < qconf->n_rx_port; i++) {
-
 		portid = qconf->rx_port_list[i];
 		RTE_LOG(INFO, L2FWD, " -- lcoreid=%u portid=%u\n", lcore_id,
 			portid);
@@ -293,13 +244,12 @@ l2fwd_main_loop(void)
 		diff_tsc = cur_tsc - prev_tsc;
 		if (unlikely(diff_tsc > drain_tsc)) {
 
-			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
-				if (qconf->tx_mbufs[portid].len == 0)
-					continue;
-				l2fwd_send_burst(&lcore_queue_conf[lcore_id],
-						 qconf->tx_mbufs[portid].len,
-						 (uint8_t) portid);
-				qconf->tx_mbufs[portid].len = 0;
+			for (i = 0; i < qconf->n_rx_port; i++) {
+				portid = qconf->rx_port_list[i];
+				portid = l2fwd_dst_ports[portid];
+				sent = rte_eth_tx_buffer_flush(portid, 0);
+				if (sent)
+					port_statistics[portid].tx += sent;
 			}
 
 			/* if timer is enabled */
@@ -666,6 +616,10 @@ main(int argc, char **argv)
 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 				ret, (unsigned) portid);
 
+		rte_eth_tx_buffer_set_err_callback(portid, 0,
+				rte_eth_count_unsent_packet_callback,
+				&port_statistics[portid].dropped);
+
 		/* Start device */
 		ret = rte_eth_dev_start(portid);
 		if (ret < 0)
diff --git a/examples/l3fwd-acl/main.c b/examples/l3fwd-acl/main.c
index f676d14..810cdac 100644
--- a/examples/l3fwd-acl/main.c
+++ b/examples/l3fwd-acl/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -119,11 +119,6 @@ static uint32_t enabled_port_mask;
 static int promiscuous_on; /**< Ports set in promiscuous mode off by default. */
 static int numa_on = 1; /**< NUMA is enabled by default. */
 
-struct mbuf_table {
-	uint16_t len;
-	struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
 struct lcore_rx_queue {
 	uint8_t port_id;
 	uint8_t queue_id;
@@ -187,7 +182,7 @@ static struct rte_mempool *pktmbuf_pool[NB_SOCKETS];
 static inline int
 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len);
 #endif
-static inline int
+static inline void
 send_single_packet(struct rte_mbuf *m, uint8_t port);
 
 #define MAX_ACL_RULE_NUM	100000
@@ -1292,55 +1287,17 @@ struct lcore_conf {
 	uint16_t n_rx_queue;
 	struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 	uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
-	struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
 } __rte_cache_aligned;
 
 static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
 
-/* Send burst of packets on an output interface */
-static inline int
-send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port)
-{
-	struct rte_mbuf **m_table;
-	int ret;
-	uint16_t queueid;
-
-	queueid = qconf->tx_queue_id[port];
-	m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
-	ret = rte_eth_tx_burst(port, queueid, m_table, n);
-	if (unlikely(ret < n)) {
-		do {
-			rte_pktmbuf_free(m_table[ret]);
-		} while (++ret < n);
-	}
-
-	return 0;
-}
-
 /* Enqueue a single packet, and send burst if queue is filled */
-static inline int
+static inline void
 send_single_packet(struct rte_mbuf *m, uint8_t port)
 {
-	uint32_t lcore_id;
-	uint16_t len;
-	struct lcore_conf *qconf;
-
-	lcore_id = rte_lcore_id();
-
-	qconf = &lcore_conf[lcore_id];
-	len = qconf->tx_mbufs[port].len;
-	qconf->tx_mbufs[port].m_table[len] = m;
-	len++;
-
-	/* enough pkts to be sent */
-	if (unlikely(len == MAX_PKT_BURST)) {
-		send_burst(qconf, MAX_PKT_BURST, port);
-		len = 0;
-	}
+	uint16_t q = lcore_conf[rte_lcore_id()].tx_queue_id[port];
 
-	qconf->tx_mbufs[port].len = len;
-	return 0;
+	rte_eth_tx_buffer(port, q, m);
 }
 
 #ifdef DO_RFC_1812_CHECKS
@@ -1433,14 +1390,9 @@ main_loop(__attribute__((unused)) void *dummy)
 			 * This could be optimized (use queueid instead of
 			 * portid), but it is not called so often
 			 */
-			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
-				if (qconf->tx_mbufs[portid].len == 0)
-					continue;
-				send_burst(&lcore_conf[lcore_id],
-					qconf->tx_mbufs[portid].len,
-					portid);
-				qconf->tx_mbufs[portid].len = 0;
-			}
+			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
+				rte_eth_tx_buffer_flush(portid,
+						qconf->tx_queue_id[portid]);
 
 			prev_tsc = cur_tsc;
 		}
diff --git a/examples/l3fwd-power/main.c b/examples/l3fwd-power/main.c
index 828c18a..6f32242 100644
--- a/examples/l3fwd-power/main.c
+++ b/examples/l3fwd-power/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -173,11 +173,6 @@ enum freq_scale_hint_t
 	FREQ_HIGHEST  =       2
 };
 
-struct mbuf_table {
-	uint16_t len;
-	struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
 struct lcore_rx_queue {
 	uint8_t port_id;
 	uint8_t queue_id;
@@ -348,7 +343,6 @@ struct lcore_conf {
 	uint16_t n_rx_queue;
 	struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 	uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
-	struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
 	lookup_struct_t * ipv4_lookup_struct;
 	lookup_struct_t * ipv6_lookup_struct;
 } __rte_cache_aligned;
@@ -442,50 +436,12 @@ power_timer_cb(__attribute__((unused)) struct rte_timer *tim,
 	stats[lcore_id].sleep_time = 0;
 }
 
-/* Send burst of packets on an output interface */
-static inline int
-send_burst(struct lcore_conf *qconf, uint16_t n, uint8_t port)
-{
-	struct rte_mbuf **m_table;
-	int ret;
-	uint16_t queueid;
-
-	queueid = qconf->tx_queue_id[port];
-	m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
-	ret = rte_eth_tx_burst(port, queueid, m_table, n);
-	if (unlikely(ret < n)) {
-		do {
-			rte_pktmbuf_free(m_table[ret]);
-		} while (++ret < n);
-	}
-
-	return 0;
-}
-
-/* Enqueue a single packet, and send burst if queue is filled */
-static inline int
+static inline void
 send_single_packet(struct rte_mbuf *m, uint8_t port)
 {
-	uint32_t lcore_id;
-	uint16_t len;
-	struct lcore_conf *qconf;
-
-	lcore_id = rte_lcore_id();
+	uint16_t q = lcore_conf[rte_lcore_id()].tx_queue_id[port];
 
-	qconf = &lcore_conf[lcore_id];
-	len = qconf->tx_mbufs[port].len;
-	qconf->tx_mbufs[port].m_table[len] = m;
-	len++;
-
-	/* enough pkts to be sent */
-	if (unlikely(len == MAX_PKT_BURST)) {
-		send_burst(qconf, MAX_PKT_BURST, port);
-		len = 0;
-	}
-
-	qconf->tx_mbufs[port].len = len;
-	return 0;
+	rte_eth_tx_buffer(port, q, m);
 }
 
 #ifdef DO_RFC_1812_CHECKS
@@ -910,14 +866,9 @@ main_loop(__attribute__((unused)) void *dummy)
 			 * This could be optimized (use queueid instead of
 			 * portid), but it is not called so often
 			 */
-			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
-				if (qconf->tx_mbufs[portid].len == 0)
-					continue;
-				send_burst(&lcore_conf[lcore_id],
-					qconf->tx_mbufs[portid].len,
-					portid);
-				qconf->tx_mbufs[portid].len = 0;
-			}
+			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++)
+				rte_eth_tx_buffer_flush(portid,
+						qconf->tx_queue_id[portid]);
 
 			prev_tsc = cur_tsc;
 		}
diff --git a/examples/link_status_interrupt/main.c b/examples/link_status_interrupt/main.c
index c57a08a..ec51cbe 100644
--- a/examples/link_status_interrupt/main.c
+++ b/examples/link_status_interrupt/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -96,19 +96,12 @@ static unsigned int lsi_rx_queue_per_lcore = 1;
 /* destination port for L2 forwarding */
 static unsigned lsi_dst_ports[RTE_MAX_ETHPORTS] = {0};
 
-#define MAX_PKT_BURST 32
-struct mbuf_table {
-	unsigned len;
-	struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
 #define MAX_RX_QUEUE_PER_LCORE 16
 #define MAX_TX_QUEUE_PER_PORT 16
 struct lcore_queue_conf {
 	unsigned n_rx_port;
 	unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
 	unsigned tx_queue_id;
-	struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
 
 } __rte_cache_aligned;
 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
@@ -136,7 +129,7 @@ struct rte_mempool * lsi_pktmbuf_pool = NULL;
 struct lsi_port_statistics {
 	uint64_t tx;
 	uint64_t rx;
-	uint64_t dropped;
+	unsigned long dropped;
 } __rte_cache_aligned;
 struct lsi_port_statistics port_statistics[RTE_MAX_ETHPORTS];
 
@@ -202,58 +195,12 @@ print_stats(void)
 	printf("\n====================================================\n");
 }
 
-/* Send the packet on an output interface */
-static int
-lsi_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port)
-{
-	struct rte_mbuf **m_table;
-	unsigned ret;
-	unsigned queueid;
-
-	queueid = (uint16_t) qconf->tx_queue_id;
-	m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
-	ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n);
-	port_statistics[port].tx += ret;
-	if (unlikely(ret < n)) {
-		port_statistics[port].dropped += (n - ret);
-		do {
-			rte_pktmbuf_free(m_table[ret]);
-		} while (++ret < n);
-	}
-
-	return 0;
-}
-
-/* Send the packet on an output interface */
-static int
-lsi_send_packet(struct rte_mbuf *m, uint8_t port)
-{
-	unsigned lcore_id, len;
-	struct lcore_queue_conf *qconf;
-
-	lcore_id = rte_lcore_id();
-
-	qconf = &lcore_queue_conf[lcore_id];
-	len = qconf->tx_mbufs[port].len;
-	qconf->tx_mbufs[port].m_table[len] = m;
-	len++;
-
-	/* enough pkts to be sent */
-	if (unlikely(len == MAX_PKT_BURST)) {
-		lsi_send_burst(qconf, MAX_PKT_BURST, port);
-		len = 0;
-	}
-
-	qconf->tx_mbufs[port].len = len;
-	return 0;
-}
-
 static void
 lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
 {
 	struct ether_hdr *eth;
 	void *tmp;
+	unsigned sent;
 	unsigned dst_port = lsi_dst_ports[portid];
 
 	eth = rte_pktmbuf_mtod(m, struct ether_hdr *);
@@ -265,7 +212,9 @@ lsi_simple_forward(struct rte_mbuf *m, unsigned portid)
 	/* src addr */
 	ether_addr_copy(&lsi_ports_eth_addr[dst_port], &eth->s_addr);
 
-	lsi_send_packet(m, (uint8_t) dst_port);
+	sent = rte_eth_tx_buffer(dst_port, 0, m);
+	if (sent)
+		port_statistics[dst_port].tx += sent;
 }
 
 /* main processing loop */
@@ -275,6 +224,7 @@ lsi_main_loop(void)
 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 	struct rte_mbuf *m;
 	unsigned lcore_id;
+	unsigned sent;
 	uint64_t prev_tsc, diff_tsc, cur_tsc, timer_tsc;
 	unsigned i, j, portid, nb_rx;
 	struct lcore_queue_conf *qconf;
@@ -310,15 +260,12 @@ lsi_main_loop(void)
 		diff_tsc = cur_tsc - prev_tsc;
 		if (unlikely(diff_tsc > drain_tsc)) {
 
-			/* this could be optimized (use queueid instead of
-			 * portid), but it is not called so often */
-			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
-				if (qconf->tx_mbufs[portid].len == 0)
-					continue;
-				lsi_send_burst(&lcore_queue_conf[lcore_id],
-						 qconf->tx_mbufs[portid].len,
-						 (uint8_t) portid);
-				qconf->tx_mbufs[portid].len = 0;
+			for (i = 0; i < qconf->n_rx_port; i++) {
+				portid = qconf->rx_port_list[i];
+				portid = lsi_dst_ports[portid];
+				sent = rte_eth_tx_buffer_flush(portid, 0);
+				if (sent)
+					port_statistics[portid].tx += sent;
 			}
 
 			/* if timer is enabled */
@@ -700,6 +647,10 @@ main(int argc, char **argv)
 		rte_eth_dev_callback_register(portid,
 			RTE_ETH_EVENT_INTR_LSC, lsi_event_callback, NULL);
 
+		rte_eth_tx_buffer_set_err_callback(portid, 0,
+				rte_eth_count_unsent_packet_callback,
+				&port_statistics[portid].dropped);
+
 		rte_eth_macaddr_get(portid,
 				    &lsi_ports_eth_addr[portid]);
 
diff --git a/examples/multi_process/client_server_mp/mp_client/client.c b/examples/multi_process/client_server_mp/mp_client/client.c
index bf049a4..2321550 100644
--- a/examples/multi_process/client_server_mp/mp_client/client.c
+++ b/examples/multi_process/client_server_mp/mp_client/client.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -72,22 +72,12 @@
  * queue to write to. */
 static uint8_t client_id = 0;
 
-struct mbuf_queue {
-#define MBQ_CAPACITY 32
-	struct rte_mbuf *bufs[MBQ_CAPACITY];
-	uint16_t top;
-};
-
 /* maps input ports to output ports for packets */
 static uint8_t output_ports[RTE_MAX_ETHPORTS];
 
-/* buffers up a set of packet that are ready to send */
-static struct mbuf_queue output_bufs[RTE_MAX_ETHPORTS];
-
 /* shared data from server. We update statistics here */
 static volatile struct tx_stats *tx_stats;
 
-
 /*
  * print a usage message
  */
@@ -149,6 +139,23 @@ parse_app_args(int argc, char *argv[])
 }
 
 /*
+ * Tx buffer error callback
+ */
+static void
+flush_tx_error_callback(struct rte_mbuf **unsent, uint16_t count,
+		void *userdata) {
+	int i;
+	uint8_t port = (uintptr_t)userdata;
+
+	tx_stats->tx_drop[port] += count;
+
+	/* free the mbufs which failed from transmit */
+	for (i = 0; i < count; i++)
+		rte_pktmbuf_free(unsent[i]);
+
+}
+
+/*
  * set up output ports so that all traffic on port gets sent out
  * its paired port. Index using actual port numbers since that is
  * what comes in the mbuf structure.
@@ -164,41 +171,14 @@ static void configure_output_ports(const struct port_info *ports)
 		uint8_t p2 = ports->id[i+1];
 		output_ports[p1] = p2;
 		output_ports[p2] = p1;
-	}
-}
-
 
-static inline void
-send_packets(uint8_t port)
-{
-	uint16_t i, sent;
-	struct mbuf_queue *mbq = &output_bufs[port];
+		rte_eth_tx_buffer_set_err_callback(p1, client_id,
+				flush_tx_error_callback, (void *)(intptr_t)p1);
 
-	if (unlikely(mbq->top == 0))
-		return;
+		rte_eth_tx_buffer_set_err_callback(p2, client_id,
+				flush_tx_error_callback, (void *)(intptr_t)p2);
 
-	sent = rte_eth_tx_burst(port, client_id, mbq->bufs, mbq->top);
-	if (unlikely(sent < mbq->top)){
-		for (i = sent; i < mbq->top; i++)
-			rte_pktmbuf_free(mbq->bufs[i]);
-		tx_stats->tx_drop[port] += (mbq->top - sent);
 	}
-	tx_stats->tx[port] += sent;
-	mbq->top = 0;
-}
-
-/*
- * Enqueue a packet to be sent on a particular port, but
- * don't send it yet. Only when the buffer is full.
- */
-static inline void
-enqueue_packet(struct rte_mbuf *buf, uint8_t port)
-{
-	struct mbuf_queue *mbq = &output_bufs[port];
-	mbq->bufs[mbq->top++] = buf;
-
-	if (mbq->top == MBQ_CAPACITY)
-		send_packets(port);
 }
 
 /*
@@ -209,10 +189,13 @@ enqueue_packet(struct rte_mbuf *buf, uint8_t port)
 static void
 handle_packet(struct rte_mbuf *buf)
 {
+	unsigned sent;
 	const uint8_t in_port = buf->port;
 	const uint8_t out_port = output_ports[in_port];
 
-	enqueue_packet(buf, out_port);
+	sent = rte_eth_tx_buffer(out_port, client_id, buf);
+	if (unlikely(sent))
+		tx_stats->tx[out_port] += sent;
 }
 
 /*
@@ -229,6 +212,7 @@ main(int argc, char *argv[])
 	int need_flush = 0; /* indicates whether we have unsent packets */
 	int retval;
 	void *pkts[PKT_READ_SIZE];
+	uint16_t sent;
 
 	if ((retval = rte_eal_init(argc, argv)) < 0)
 		return -1;
@@ -274,8 +258,11 @@ main(int argc, char *argv[])
 
 		if (unlikely(rx_pkts == 0)){
 			if (need_flush)
-				for (port = 0; port < ports->num_ports; port++)
-					send_packets(ports->id[port]);
+				for (port = 0; port < ports->num_ports; port++) {
+					sent = rte_eth_tx_buffer_flush(ports->id[port], client_id);
+					if (unlikely(sent))
+						tx_stats->tx[port] += sent;
+				}
 			need_flush = 0;
 			continue;
 		}
diff --git a/examples/multi_process/l2fwd_fork/main.c b/examples/multi_process/l2fwd_fork/main.c
index f2d7eab..f919e07 100644
--- a/examples/multi_process/l2fwd_fork/main.c
+++ b/examples/multi_process/l2fwd_fork/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -117,18 +117,11 @@ static uint32_t l2fwd_dst_ports[RTE_MAX_ETHPORTS];
 
 static unsigned int l2fwd_rx_queue_per_lcore = 1;
 
-struct mbuf_table {
-	unsigned len;
-	struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
 #define MAX_RX_QUEUE_PER_LCORE 16
 #define MAX_TX_QUEUE_PER_PORT 16
 struct lcore_queue_conf {
 	unsigned n_rx_port;
 	unsigned rx_port_list[MAX_RX_QUEUE_PER_LCORE];
-	struct mbuf_table tx_mbufs[RTE_MAX_ETHPORTS];
-
 } __rte_cache_aligned;
 struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
 
@@ -176,7 +169,7 @@ static struct rte_mempool * l2fwd_pktmbuf_pool[RTE_MAX_ETHPORTS];
 struct l2fwd_port_statistics {
 	uint64_t tx;
 	uint64_t rx;
-	uint64_t dropped;
+	unsigned long dropped;
 } __rte_cache_aligned;
 struct l2fwd_port_statistics *port_statistics;
 /**
@@ -583,57 +576,12 @@ slave_exit_cb(unsigned slaveid, __attribute__((unused))int stat)
 	rte_spinlock_unlock(&res_lock);
 }
 
-/* Send the packet on an output interface */
-static int
-l2fwd_send_burst(struct lcore_queue_conf *qconf, unsigned n, uint8_t port)
-{
-	struct rte_mbuf **m_table;
-	unsigned ret;
-	unsigned queueid =0;
-
-	m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
-
-	ret = rte_eth_tx_burst(port, (uint16_t) queueid, m_table, (uint16_t) n);
-	port_statistics[port].tx += ret;
-	if (unlikely(ret < n)) {
-		port_statistics[port].dropped += (n - ret);
-		do {
-			rte_pktmbuf_free(m_table[ret]);
-		} while (++ret < n);
-	}
-
-	return 0;
-}
-
-/* Send the packet on an output interface */
-static int
-l2fwd_send_packet(struct rte_mbuf *m, uint8_t port)
-{
-	unsigned lcore_id, len;
-	struct lcore_queue_conf *qconf;
-
-	lcore_id = rte_lcore_id();
-
-	qconf = &lcore_queue_conf[lcore_id];
-	len = qconf->tx_mbufs[port].len;
-	qconf->tx_mbufs[port].m_table[len] = m;
-	len++;
-
-	/* enough pkts to be sent */
-	if (unlikely(len == MAX_PKT_BURST)) {
-		l2fwd_send_burst(qconf, MAX_PKT_BURST, port);
-		len = 0;
-	}
-
-	qconf->tx_mbufs[port].len = len;
-	return 0;
-}
-
 static void
 l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 {
 	struct ether_hdr *eth;
 	void *tmp;
+	unsigned sent;
 	unsigned dst_port;
 
 	dst_port = l2fwd_dst_ports[portid];
@@ -646,7 +594,9 @@ l2fwd_simple_forward(struct rte_mbuf *m, unsigned portid)
 	/* src addr */
 	ether_addr_copy(&l2fwd_ports_eth_addr[dst_port], &eth->s_addr);
 
-	l2fwd_send_packet(m, (uint8_t) dst_port);
+	sent = rte_eth_tx_buffer(dst_port, 0, m);
+	if (sent)
+		port_statistics[dst_port].tx += sent;
 }
 
 /* main processing loop */
@@ -656,6 +606,7 @@ l2fwd_main_loop(void)
 	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 	struct rte_mbuf *m;
 	unsigned lcore_id;
+	unsigned sent;
 	uint64_t prev_tsc, diff_tsc, cur_tsc;
 	unsigned i, j, portid, nb_rx;
 	struct lcore_queue_conf *qconf;
@@ -698,14 +649,12 @@ l2fwd_main_loop(void)
 		 */
 		diff_tsc = cur_tsc - prev_tsc;
 		if (unlikely(diff_tsc > drain_tsc)) {
-
-			for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
-				if (qconf->tx_mbufs[portid].len == 0)
-					continue;
-				l2fwd_send_burst(&lcore_queue_conf[lcore_id],
-						 qconf->tx_mbufs[portid].len,
-						 (uint8_t) portid);
-				qconf->tx_mbufs[portid].len = 0;
+			for (i = 0; i < qconf->n_rx_port; i++) {
+				portid = qconf->rx_port_list[i];
+				portid = l2fwd_dst_ports[portid];
+				sent = rte_eth_tx_buffer_flush(portid, 0);
+				if (sent)
+					port_statistics[portid].tx += sent;
 			}
 		}
 
@@ -1144,6 +1093,10 @@ main(int argc, char **argv)
 			rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup:err=%d, port=%u\n",
 				ret, (unsigned) portid);
 
+		rte_eth_tx_buffer_set_err_callback(portid, 0,
+				rte_eth_count_unsent_packet_callback,
+				&port_statistics[portid].dropped);
+
 		/* Start device */
 		ret = rte_eth_dev_start(portid);
 		if (ret < 0)
diff --git a/examples/packet_ordering/main.c b/examples/packet_ordering/main.c
index 1d9a86f..a11d68e 100644
--- a/examples/packet_ordering/main.c
+++ b/examples/packet_ordering/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -86,11 +86,6 @@ struct send_thread_args {
 	struct rte_reorder_buffer *buffer;
 };
 
-struct output_buffer {
-	unsigned count;
-	struct rte_mbuf *mbufs[MAX_PKTS_BURST];
-};
-
 volatile struct app_stats {
 	struct {
 		uint64_t rx_pkts;
@@ -235,6 +230,20 @@ parse_args(int argc, char **argv)
 	return 0;
 }
 
+/*
+ * Tx buffer error callback
+ */
+static void
+flush_tx_error_callback(struct rte_mbuf **unsent, uint16_t count,
+		void *userdata __rte_unused) {
+
+	/* free the mbufs which failed from transmit */
+	app_stats.tx.ro_tx_failed_pkts += count;
+	LOG_DEBUG(REORDERAPP, "%s:Packet loss with tx_burst\n", __func__);
+	pktmbuf_free_bulk(unsent, count);
+
+}
+
 static inline int
 configure_eth_port(uint8_t port_id)
 {
@@ -266,6 +275,9 @@ configure_eth_port(uint8_t port_id)
 			return ret;
 	}
 
+	rte_eth_tx_buffer_set_err_callback(port_id, 0, flush_tx_error_callback,
+			NULL);
+
 	ret = rte_eth_dev_start(port_id);
 	if (ret < 0)
 		return ret;
@@ -438,22 +450,6 @@ worker_thread(void *args_ptr)
 	return 0;
 }
 
-static inline void
-flush_one_port(struct output_buffer *outbuf, uint8_t outp)
-{
-	unsigned nb_tx = rte_eth_tx_burst(outp, 0, outbuf->mbufs,
-			outbuf->count);
-	app_stats.tx.ro_tx_pkts += nb_tx;
-
-	if (unlikely(nb_tx < outbuf->count)) {
-		/* free the mbufs which failed from transmit */
-		app_stats.tx.ro_tx_failed_pkts += (outbuf->count - nb_tx);
-		LOG_DEBUG(REORDERAPP, "%s:Packet loss with tx_burst\n", __func__);
-		pktmbuf_free_bulk(&outbuf->mbufs[nb_tx], outbuf->count - nb_tx);
-	}
-	outbuf->count = 0;
-}
-
 /**
  * Dequeue mbufs from the workers_to_tx ring and reorder them before
  * transmitting.
@@ -464,8 +460,8 @@ send_thread(struct send_thread_args *args)
 	int ret;
 	unsigned int i, dret;
 	uint16_t nb_dq_mbufs;
+	uint16_t sent;
 	uint8_t outp;
-	static struct output_buffer tx_buffers[RTE_MAX_ETHPORTS];
 	struct rte_mbuf *mbufs[MAX_PKTS_BURST];
 	struct rte_mbuf *rombufs[MAX_PKTS_BURST] = {NULL};
 
@@ -515,7 +511,6 @@ send_thread(struct send_thread_args *args)
 		dret = rte_reorder_drain(args->buffer, rombufs, MAX_PKTS_BURST);
 		for (i = 0; i < dret; i++) {
 
-			struct output_buffer *outbuf;
 			uint8_t outp1;
 
 			outp1 = rombufs[i]->port;
@@ -525,10 +520,10 @@ send_thread(struct send_thread_args *args)
 				continue;
 			}
 
-			outbuf = &tx_buffers[outp1];
-			outbuf->mbufs[outbuf->count++] = rombufs[i];
-			if (outbuf->count == MAX_PKTS_BURST)
-				flush_one_port(outbuf, outp1);
+			sent = rte_eth_tx_buffer(outp1, 0, rombufs[i]);
+			if (sent)
+				app_stats.tx.ro_tx_pkts += sent;
+
 		}
 	}
 	return 0;
@@ -541,10 +536,9 @@ static int
 tx_thread(struct rte_ring *ring_in)
 {
 	uint32_t i, dqnum;
+	uint16_t sent;
 	uint8_t outp;
-	static struct output_buffer tx_buffers[RTE_MAX_ETHPORTS];
 	struct rte_mbuf *mbufs[MAX_PKTS_BURST];
-	struct output_buffer *outbuf;
 
 	RTE_LOG(INFO, REORDERAPP, "%s() started on lcore %u\n", __func__,
 							rte_lcore_id());
@@ -567,10 +561,10 @@ tx_thread(struct rte_ring *ring_in)
 				continue;
 			}
 
-			outbuf = &tx_buffers[outp];
-			outbuf->mbufs[outbuf->count++] = mbufs[i];
-			if (outbuf->count == MAX_PKTS_BURST)
-				flush_one_port(outbuf, outp);
+			sent = rte_eth_tx_buffer(outp, 0, mbufs[i]);
+			if (sent)
+				app_stats.tx.ro_tx_pkts += sent;
+
 		}
 	}
 
diff --git a/examples/qos_meter/main.c b/examples/qos_meter/main.c
index 0de5e7f..7d901d2 100644
--- a/examples/qos_meter/main.c
+++ b/examples/qos_meter/main.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -118,8 +118,6 @@ static struct rte_eth_conf port_conf = {
 static uint8_t port_rx;
 static uint8_t port_tx;
 static struct rte_mbuf *pkts_rx[PKT_RX_BURST_MAX];
-static struct rte_mbuf *pkts_tx[PKT_TX_BURST_MAX];
-static uint16_t pkts_tx_len = 0;
 
 
 struct rte_meter_srtcm_params app_srtcm_params[] = {
@@ -188,26 +186,9 @@ main_loop(__attribute__((unused)) void *dummy)
 		current_time = rte_rdtsc();
 		time_diff = current_time - last_time;
 		if (unlikely(time_diff > TIME_TX_DRAIN)) {
-			int ret;
 
-			if (pkts_tx_len == 0) {
-				last_time = current_time;
-
-				continue;
-			}
-
-			/* Write packet burst to NIC TX */
-			ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, pkts_tx_len);
-
-			/* Free buffers for any packets not written successfully */
-			if (unlikely(ret < pkts_tx_len)) {
-				for ( ; ret < pkts_tx_len; ret ++) {
-					rte_pktmbuf_free(pkts_tx[ret]);
-				}
-			}
-
-			/* Empty the output buffer */
-			pkts_tx_len = 0;
+			/* Flush tx buffer */
+			rte_eth_tx_buffer_flush(port_tx, NIC_TX_QUEUE);
 
 			last_time = current_time;
 		}
@@ -222,26 +203,9 @@ main_loop(__attribute__((unused)) void *dummy)
 			/* Handle current packet */
 			if (app_pkt_handle(pkt, current_time) == DROP)
 				rte_pktmbuf_free(pkt);
-			else {
-				pkts_tx[pkts_tx_len] = pkt;
-				pkts_tx_len ++;
-			}
-
-			/* Write packets from output buffer to NIC TX when full burst is available */
-			if (unlikely(pkts_tx_len == PKT_TX_BURST_MAX)) {
-				/* Write packet burst to NIC TX */
-				int ret = rte_eth_tx_burst(port_tx, NIC_TX_QUEUE, pkts_tx, PKT_TX_BURST_MAX);
+			else
+				rte_eth_tx_buffer(port_tx, NIC_TX_QUEUE, pkt);
 
-				/* Free buffers for any packets not written successfully */
-				if (unlikely(ret < PKT_TX_BURST_MAX)) {
-					for ( ; ret < PKT_TX_BURST_MAX; ret ++) {
-						rte_pktmbuf_free(pkts_tx[ret]);
-					}
-				}
-
-				/* Empty the output buffer */
-				pkts_tx_len = 0;
-			}
 		}
 	}
 }
