diff --git a/README.md b/README.md
index 86ba3020..5101fb7a 100644
--- a/README.md
+++ b/README.md
@@ -717,7 +717,7 @@ type = tcp
 local_port = 22
 remote_port = 6000
 bandwidth_limit = 1MB
-bandwidth_limit_mode = server
+bandwidth_limit_mode = client
 ```
 
 Set `bandwidth_limit` in each proxy's configure to enable this feature. Supported units are `MB` and `KB`.
diff --git a/conf/frpc_full.ini b/conf/frpc_full.ini
index 99ac0780..29f6bcab 100644
--- a/conf/frpc_full.ini
+++ b/conf/frpc_full.ini
@@ -155,7 +155,7 @@ local_port = 22
 # limit bandwidth for this proxy, unit is KB and MB
 bandwidth_limit = 1MB
 # where to limit bandwidth, can be 'client' or 'server', default is 'client'
-bandwidth_limit_mode = server
+bandwidth_limit_mode = client
 # true or false, if true, messages between frps and frpc will be encrypted, default is false
 use_encryption = false
 # if true, message will be compressed
diff --git a/doc/server_plugin.md b/doc/server_plugin.md
index d73d2439..f4e377f4 100644
--- a/doc/server_plugin.md
+++ b/doc/server_plugin.md
@@ -110,6 +110,8 @@ Create new proxy
         "proxy_type": <string>,
         "use_encryption": <bool>,
         "use_compression": <bool>,
+        "bandwidth_limit": <string>,
+        "bandwidth_limit_mode": <string>,
         "group": <string>,
         "group_key": <string>,
 
diff --git a/pkg/config/proxy.go b/pkg/config/proxy.go
index 359eda81..f57cbfb6 100644
--- a/pkg/config/proxy.go
+++ b/pkg/config/proxy.go
@@ -144,7 +144,7 @@ type BaseProxyConf struct {
 	// BandwidthLimitMode specifies whether to limit the bandwidth on the
 	// client or server side. Valid values include "client" and "server".
 	// By default, this value is "client".
-	BandwidthLimitMode BandwidthLimitMode `ini:"bandwidth_limit_mode" json:"bandwidth_limit_mode"`
+	BandwidthLimitMode string `ini:"bandwidth_limit_mode" json:"bandwidth_limit_mode"`
 
 	// meta info for each proxy
 	Metas map[string]string `ini:"-" json:"metas"`
@@ -323,6 +323,7 @@ func defaultBaseProxyConf(proxyType string) BaseProxyConf {
 		LocalSvrConf: LocalSvrConf{
 			LocalIP: "127.0.0.1",
 		},
+		BandwidthLimitMode: BandwidthLimitModeClient,
 	}
 }
 
@@ -370,15 +371,6 @@ func (cfg *BaseProxyConf) decorate(prefix string, name string, section *ini.Sect
 		}
 	}
 
-	if bandwidthMode, err := section.GetKey("bandwidth_limit_mode"); err == nil {
-		cfg.BandwidthLimitMode, err = NewBandwidthLimitMode(bandwidthMode.String())
-		if err != nil {
-			return err
-		}
-	} else {
-		cfg.BandwidthLimitMode = BandwidthLimitModeClient
-	}
-
 	// plugin_xxx
 	cfg.LocalSvrConf.PluginParams = GetMapByPrefix(section.KeysHash(), "plugin_")
 
@@ -404,7 +396,7 @@ func (cfg *BaseProxyConf) marshalToMsg(pMsg *msg.NewProxy) {
 	pMsg.UseEncryption = cfg.UseEncryption
 	pMsg.UseCompression = cfg.UseCompression
 	pMsg.BandwidthLimit = cfg.BandwidthLimit.String()
-	pMsg.BandwidthLimitMode = cfg.BandwidthLimitMode.String()
+	pMsg.BandwidthLimitMode = cfg.BandwidthLimitMode
 	pMsg.Group = cfg.Group
 	pMsg.GroupKey = cfg.GroupKey
 	pMsg.Metas = cfg.Metas
@@ -416,7 +408,7 @@ func (cfg *BaseProxyConf) unmarshalFromMsg(pMsg *msg.NewProxy) {
 	cfg.UseEncryption = pMsg.UseEncryption
 	cfg.UseCompression = pMsg.UseCompression
 	cfg.BandwidthLimit, _ = NewBandwidthQuantity(pMsg.BandwidthLimit)
-	cfg.BandwidthLimitMode, _ = NewBandwidthLimitMode(pMsg.BandwidthLimitMode)
+	cfg.BandwidthLimitMode = pMsg.BandwidthLimitMode
 	cfg.Group = pMsg.Group
 	cfg.GroupKey = pMsg.GroupKey
 	cfg.Metas = pMsg.Metas
@@ -429,6 +421,10 @@ func (cfg *BaseProxyConf) checkForCli() (err error) {
 		}
 	}
 
+	if cfg.BandwidthLimitMode != "client" && cfg.BandwidthLimitMode != "server" {
+		return fmt.Errorf("bandwidth_limit_mode should be client or server")
+	}
+
 	if err = cfg.LocalSvrConf.checkForCli(); err != nil {
 		return
 	}
diff --git a/pkg/config/types.go b/pkg/config/types.go
index 93ef9302..7aefee12 100644
--- a/pkg/config/types.go
+++ b/pkg/config/types.go
@@ -24,6 +24,9 @@ import (
 const (
 	MB = 1024 * 1024
 	KB = 1024
+
+	BandwidthLimitModeClient = "client"
+	BandwidthLimitModeServer = "server"
 )
 
 type BandwidthQuantity struct {
@@ -120,24 +123,3 @@ func (q *BandwidthQuantity) MarshalJSON() ([]byte, error) {
 func (q *BandwidthQuantity) Bytes() int64 {
 	return q.i
 }
-
-type BandwidthLimitMode string
-
-const (
-	BandwidthLimitModeClient BandwidthLimitMode = "client"
-	BandwidthLimitModeServer BandwidthLimitMode = "server"
-)
-
-// Create a new BandwidthLimitMode from a string. Default to "client".
-func NewBandwidthLimitMode(s string) (BandwidthLimitMode, error) {
-	switch BandwidthLimitMode(s) {
-	case BandwidthLimitModeClient, BandwidthLimitModeServer:
-		return BandwidthLimitMode(s), nil
-	default:
-		return BandwidthLimitModeClient, errors.New("invalid bandwidth_limit_mode")
-	}
-}
-
-func (m BandwidthLimitMode) String() string {
-	return string(m)
-}