diff --git a/vnt/tun/src/linux/device.rs b/vnt/tun/src/linux/device.rs
index 7b2af7d..f84ccf2 100644
--- a/vnt/tun/src/linux/device.rs
+++ b/vnt/tun/src/linux/device.rs
@@ -86,6 +86,10 @@ impl Device {
             } else {
                 None
             };
+            let set_txqueuelen  = format!("ifconfig {} txqueuelen 1000", name);
+            if let Err(e) = exe_cmd(&set_txqueuelen){
+                log::warn!("{:?}",e);
+            }
             Device {
                 name,
                 tun,