diff --git a/go.mod b/go.mod
index 62b2e0a7..6e812931 100644
--- a/go.mod
+++ b/go.mod
@@ -42,6 +42,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/receiver/jaegerreceiver v0.54.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/receiver/kafkareceiver v0.54.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/receiver/zipkinreceiver v0.54.0
+	github.com/orcaman/concurrent-map v1.0.0
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/percona/percona-toolkit v0.0.0-20211210121818-b2860eee3152
 	github.com/pkg/errors v0.9.1
diff --git a/go.sum b/go.sum
index 85b67c35..aecaa821 100644
--- a/go.sum
+++ b/go.sum
@@ -940,6 +940,8 @@ github.com/openzipkin/zipkin-go v0.2.2/go.mod h1:NaW6tEwdmWMaCDZzg8sh+IBNOxHMPnh
 github.com/openzipkin/zipkin-go v0.2.5/go.mod h1:KpXfKdgRDnnhsxw4pNIH9Md5lyFqKUa4YDFlwRYAMyE=
 github.com/openzipkin/zipkin-go v0.4.0 h1:CtfRrOVZtbDj8rt1WXjklw0kqqJQwICrCKmlfUuBUUw=
 github.com/openzipkin/zipkin-go v0.4.0/go.mod h1:4c3sLeE8xjNqehmF5RpAFLPLJxXscc0R4l6Zg0P1tTQ=
+github.com/orcaman/concurrent-map v1.0.0 h1:I/2A2XPCb4IuQWcQhBhSwGfiuybl/J0ev9HDbW65HOY=
+github.com/orcaman/concurrent-map v1.0.0/go.mod h1:Lu3tH6HLW3feq74c2GC+jIMS/K2CFcDWnWD9XkenwhI=
 github.com/pact-foundation/pact-go v1.0.4/go.mod h1:uExwJY4kCzNPcHRj+hCR/HBbOOIwwtUjcrb0b5/5kLM=
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
 github.com/pascaldekloe/goe v0.1.0 h1:cBOtyMzM9HTpWjXfbbunk26uA6nG3a8n06Wieeh0MwY=
diff --git a/inputs/switch_legacy/switch_legacy.go b/inputs/switch_legacy/switch_legacy.go
index b0dbfdcc..16b336e5 100644
--- a/inputs/switch_legacy/switch_legacy.go
+++ b/inputs/switch_legacy/switch_legacy.go
@@ -14,6 +14,7 @@ import (
 	"flashcat.cloud/categraf/pkg/runtimex"
 	"flashcat.cloud/categraf/types"
 	"github.com/gaochao1/sw"
+	cmap "github.com/orcaman/concurrent-map"
 	"github.com/toolkits/pkg/concurrent/semaphore"
 	"github.com/toolkits/pkg/container/list"
 	go_snmp "github.com/ulricqin/gosnmp"
@@ -602,11 +603,10 @@ func (ins *Instance) ifstat(wg *sync.WaitGroup, sema *semaphore.Semaphore, ip st
 }
 
 func (ins *Instance) gatherPing(ips []string, slist *list.SafeList) []string {
-	// init ping result
-	pingResult := make(map[string]bool)
+	pingResult := cmap.New()
 	for i := 0; i < len(ips); i++ {
 		// init ping result
-		pingResult[ips[i]] = false
+		pingResult.Set(ips[i], false)
 	}
 
 	wg := new(sync.WaitGroup)
@@ -620,9 +620,10 @@ func (ins *Instance) gatherPing(ips []string, slist *list.SafeList) []string {
 	wg.Wait()
 
 	ips = make([]string, 0, len(ips))
-	for ip, succ := range pingResult {
+
+	for ip, succ := range pingResult.Items() {
 		val := 0
-		if succ {
+		if succ.(bool) {
 			val = 1
 			ips = append(ips, ip)
 		}
@@ -647,7 +648,7 @@ func (ins *Instance) parseIPs() (lst []string) {
 	return
 }
 
-func (ins *Instance) ping(wg *sync.WaitGroup, sema *semaphore.Semaphore, ip string, result map[string]bool) {
+func (ins *Instance) ping(wg *sync.WaitGroup, sema *semaphore.Semaphore, ip string, result cmap.ConcurrentMap) {
 	defer func() {
 		sema.Release()
 		wg.Done()
@@ -656,7 +657,7 @@ func (ins *Instance) ping(wg *sync.WaitGroup, sema *semaphore.Semaphore, ip stri
 	for i := 0; i < ins.PingRetries; i++ {
 		succ := sw.Ping(ip, int(ins.PingTimeoutMs), ins.PingModeFastping)
 		if succ {
-			result[ip] = succ
+			result.Set(ip, succ)
 			break
 		}
 	}