diff --git a/pkg/util/ovnutils/ovnutils.go b/pkg/util/ovnutils/ovnutils.go
index 31d605fe69..07d675a245 100644
--- a/pkg/util/ovnutils/ovnutils.go
+++ b/pkg/util/ovnutils/ovnutils.go
@@ -18,7 +18,9 @@ import (
 	"fmt"
 	"os"
 	"strings"
+	"time"
 
+	"yunion.io/x/log"
 	"yunion.io/x/pkg/errors"
 
 	"yunion.io/x/onecloud/pkg/hostman/system_service"
@@ -27,12 +29,28 @@ import (
 	"yunion.io/x/onecloud/pkg/util/procutils"
 )
 
-func mustConfigBridgeMtu(opts SOvnOptions) {
+func configBridgeMtu(opts SOvnOptions) {
+	timer := time.NewTimer(time.Minute)
+	go func() {
+		<-timer.C
+		err := ensureConfigBridgeMtu(opts)
+		if err != nil {
+			log.Errorf("configuring mtu fail: %s, retry...", err)
+			configBridgeMtu(opts)
+		} else {
+			log.Infof("set brvpc MTU to %d success!", opts.OvnUnderlayMtu)
+		}
+	}()
+}
+
+func ensureConfigBridgeMtu(opts SOvnOptions) error {
 	args := []string{"set", "Interface", opts.OvnIntegrationBridge, fmt.Sprintf("mtu_request=%d", opts.OvnUnderlayMtu)}
 	output, err := procutils.NewCommand("ovs-vsctl", args...).Output()
 	if err != nil {
-		panic(errors.Wrapf(err, "configuring ovn-controller: %s", string(output)))
+		// panic(errors.Wrapf(err, "configuring ovn-controller: %s", string(output)))
+		return errors.Wrapf(err, "ovs-vsctl %s", string(output))
 	}
+	return nil
 }
 
 func mustPrepOvsdbConfig(opts SOvnOptions) {
@@ -108,7 +126,7 @@ func InitOvn(opts SOvnOptions) (err error) {
 		}
 	}()
 	mustPrepOvsdbConfig(opts)
-	mustConfigBridgeMtu(opts)
+	configBridgeMtu(opts)
 	if _, ok := ovnContainerImageTag(); !ok {
 		mustPrepService()
 	}