diff --git a/build-root/dpdk_mlx_default.sh b/build-root/dpdk_mlx_default.sh
new file mode 100644
index 000000000000..337f59df7947
--- /dev/null
+++ b/build-root/dpdk_mlx_default.sh
@@ -0,0 +1 @@
+DPDK_MLX_DEFAULT=y
diff --git a/build/external/Makefile b/build/external/Makefile
index b036313afee6..87c79c86a414 100644
--- a/build/external/Makefile
+++ b/build/external/Makefile
@@ -47,10 +47,10 @@ clean:
 	@rm -rf $(B) $(I)
 
 .PHONY: install
-install: $(if $(ARCH_X86_64), ipsec-mb-install) dpdk-install rdma-core-install quicly-install libbpf-install
+install: $(if $(ARCH_X86_64), ipsec-mb-install) rdma-core-install quicly-install libbpf-install
 
 .PHONY: config
-config: $(if $(ARCH_X86_64), ipsec-mb-config) dpdk-config rdma-core-config quicly-build
+config: $(if $(ARCH_X86_64), ipsec-mb-config) rdma-core-config quicly-build
 
 ##############################################################################
 # .deb packaging
diff --git a/src/plugins/dpdk/CMakeLists.txt b/src/plugins/dpdk/CMakeLists.txt
index a9d4f3e514cb..357c81d1fc38 100644
--- a/src/plugins/dpdk/CMakeLists.txt
+++ b/src/plugins/dpdk/CMakeLists.txt
@@ -14,8 +14,10 @@
 ##############################################################################
 # Check if we want to use the system DPDK
 ##############################################################################
-option(VPP_USE_SYSTEM_DPDK "Use the system installation of DPDK." OFF)
+option(VPP_USE_SYSTEM_DPDK "Use the system installation of DPDK." ON)
+set(VPP_USE_SYSTEM_DPDK "/usr/local/lib")
 if(VPP_USE_SYSTEM_DPDK)
+    message("try to find system dpdk lib")
     find_package(PkgConfig REQUIRED)
     pkg_check_modules(DPDK REQUIRED libdpdk)
     message(WARNING "-- linking dpdk plugin against system libdpdk, version ${DPDK_VERSION}")
diff --git a/src/plugins/dpdk/device/common.c b/src/plugins/dpdk/device/common.c
index b8c6eddd34b7..05416f89e767 100644
--- a/src/plugins/dpdk/device/common.c
+++ b/src/plugins/dpdk/device/common.c
@@ -165,7 +165,7 @@ dpdk_device_setup (dpdk_device_t * xd)
     {
       conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
       xd->max_supported_frame_size = dev_info.max_rx_pktlen;
-      mtu = xd->max_supported_frame_size - xd->driver_frame_overhead;
+      CLIB_UNUSED(u32 mtu) = xd->max_supported_frame_size - xd->driver_frame_overhead;
     }
   else
     {
diff --git a/src/plugins/dpdk/device/dpdk_priv.h b/src/plugins/dpdk/device/dpdk_priv.h
index 013ab41637eb..67b9a8040f3b 100644
--- a/src/plugins/dpdk/device/dpdk_priv.h
+++ b/src/plugins/dpdk/device/dpdk_priv.h
@@ -183,7 +183,7 @@ dpdk_update_counters (dpdk_device_t * xd, f64 now)
 #define RTE_ETH_RSS_ESP			    ETH_RSS_ESP
 #define RTE_ETH_RSS_L4_DST_ONLY		    ETH_RSS_L4_DST_ONLY
 #define RTE_ETH_RSS_L4_SRC_ONLY		    ETH_RSS_L4_SRC_ONLY
-#define RTE_ETH_RSS_L3_DST_ONL		    ETH_RSS_L3_DST_ONL
+#define RTE_ETH_RSS_L3_DST_ONLY		    ETH_RSS_L3_DST_ONLY
 #define RTE_ETH_RSS_L3_SRC_ONLY		    ETH_RSS_L3_SRC_ONLY
 #define RTE_ETH_RETA_GROUP_SIZE		    RTE_RETA_GROUP_SIZE
 #define RTE_ETH_TX_OFFLOAD_IPV4_CKSUM	    DEV_TX_OFFLOAD_IPV4_CKSUM
diff --git a/startup.conf b/startup.conf
new file mode 100644
index 000000000000..5529d39ad20d
--- /dev/null
+++ b/startup.conf
@@ -0,0 +1,65 @@
+
+unix {
+  interactive
+  #nodaemon
+  log /opt/vpp_copy.log
+  # full-coredump
+  cli-listen /opt/vpp_copy/cli.sock
+}
+
+api-trace {
+  on
+}
+
+memory {
+  main-heap-size 1G
+  # main-heap-page-size 1G
+}
+
+cpu {
+  main-core 0
+  corelist-workers 1
+}
+
+buffers {
+  #buffers-per-numa 128000
+  page-size default-hugepage
+  #default data-size 4096
+}
+
+plugins {
+  path /opt/vpp_copy/build-root/build-vpp_debug-native/vpp/lib/aarch64-linux-gnu/vpp_plugins
+  plugin default { enable }
+  plugin oddbuf_plugin.so { enable }
+  plugin dpdk_plugin.so { enable }
+  plugin handoffdemo_plugin.so { enable }
+  #plugin qq_plugin.so { enable }
+}
+
+dpdk {
+  no-pci
+  # dev 0000:02:01.0 {
+  #     name ens33
+  # }
+  #  dev 0000:02:06.0 {
+  #      name ens38
+  #  }
+  # dev 0000:02:07.0 {
+  #     name ens39
+  # }
+  # dev 0000:02:01.0
+  # dev 0000:02:07.0
+}
+
+statseg {
+  size 32m
+  # page-size 4k
+  # socket-name /home/ubuntu/opt/vpp/stats.sock
+}
+
+logging {
+  default-log-level debug
+  default-syslog-log-level debug
+  add-to-elog
+  # class dpdk/cryptodev { rate-limit 100 level debug syslog-level error }
+}