diff --git a/Makefile b/Makefile
index 82e613935d2..017a2f4066f 100644
--- a/Makefile
+++ b/Makefile
@@ -1060,7 +1060,7 @@ ut:
 
 .PHONY: cover
 cover:
-	go test ./pkg/ovs ./pkg/util ./pkg/ipam -gcflags=all=-l -p 1 -coverprofile=cover.out -covermode=atomic
+	go test ./pkg/ovs ./pkg/util ./pkg/ipam -gcflags=all=-l -coverprofile=cover.out -covermode=atomic
 	go tool cover -func=cover.out | grep -v "100.0%"
 	go tool cover -html=cover.out -o cover.html
 
diff --git a/pkg/ovs/ovn-nb-suite_test.go b/pkg/ovs/ovn-nb-suite_test.go
index 8f41a81b99b..9ee2976737e 100644
--- a/pkg/ovs/ovn-nb-suite_test.go
+++ b/pkg/ovs/ovn-nb-suite_test.go
@@ -41,18 +41,8 @@ func emptyNbDatabaseModel() (model.ClientDBModel, error) {
 
 func (suite *OvnClientTestSuite) SetupSuite() {
 	fmt.Println("set up ovn client test suite")
-	// setup ovn nb client
+	// setup ovn nb client schema
 	nbClientSchema := ovnnb.Schema()
-	nbClientDBModel, err := ovnnb.FullDatabaseModel()
-	require.NoError(suite.T(), err)
-
-	_, nbSock := newOVSDBServer(suite.T(), nbClientDBModel, nbClientSchema)
-	nbEndpoint := fmt.Sprintf("unix:%s", nbSock)
-	require.FileExists(suite.T(), nbSock)
-
-	ovnNBClient, err := newOvnNbClient(suite.T(), nbEndpoint, 10)
-	require.NoError(suite.T(), err)
-	suite.ovnNBClient = ovnNBClient
 
 	// setup failed case ovn nb client
 	emptyNbDBModel, err := emptyNbDatabaseModel()
@@ -68,6 +58,18 @@ func (suite *OvnClientTestSuite) SetupSuite() {
 	server1.Close()
 	require.NoFileExists(suite.T(), nbSock1)
 
+	// setup ovn nb client
+	nbClientDBModel, err := ovnnb.FullDatabaseModel()
+	require.NoError(suite.T(), err)
+
+	_, nbSock := newOVSDBServer(suite.T(), nbClientDBModel, nbClientSchema)
+	nbEndpoint := fmt.Sprintf("unix:%s", nbSock)
+	require.FileExists(suite.T(), nbSock)
+
+	ovnNBClient, err := newOvnNbClient(suite.T(), nbEndpoint, 10)
+	require.NoError(suite.T(), err)
+	suite.ovnNBClient = ovnNBClient
+
 	// setup ovn sb client
 	sbClientSchema := ovnsb.Schema()
 	sbClientDBModel, err := ovnsb.FullDatabaseModel()