diff --git a/apps/sdlan/include/sdlan.hrl b/apps/sdlan/include/sdlan.hrl
index 47c7424..5b93a19 100644
--- a/apps/sdlan/include/sdlan.hrl
+++ b/apps/sdlan/include/sdlan.hrl
@@ -13,8 +13,9 @@
 
 -define(DEFAULT_PASS, <<"`encrypt!`">>).
 
--define(PACKET_EMPTY, 16#00).
+%% 一级分类，包类型分类，占一个字节
 
+-define(PACKET_EMPTY, 16#00).
 %% 注册相关
 -define(PACKET_REGISTER_SUPER, 16#01).
 -define(PACKET_REGISTER_SUPER_ACK, 16#02).
@@ -32,23 +33,6 @@
 %% 推送的事件信息, 不需要返回值
 -define(PACKET_EVENT, 16#10).
 
-%% 定义事件信息
--define(PACKET_EVENT_KNOWN_IP, 16#01).
--define(PACKET_EVENT_DROP_IP, 16#02).
--define(PACKET_EVENT_NAT_CHANGED, 16#03).
--define(PACKET_EVENT_SEND_REGISTER, 16#04).
-
-%% 网络关闭
--define(PACKET_EVENT_NETWORK_SHUTDOWN, 16#FF).
-
-%% 推送命令信息, 需要等待返回值
--define(PACKET_COMMAND, 16#11).
--define(PACKET_COMMAND_ACK, 16#12).
-
-%% 网络发生变化
--define(PACKET_COMMAND_CHANGE_NETWORK, 16#01).
--define(PACKET_COMMAND_UPGRADE, 16#02).
-
 %% 网络流量统计
 -define(PACKET_FLOW_TRACER, 16#15).
 
@@ -56,7 +40,6 @@
 -define(PACKET_REGISTER_ACK, 16#21).
 
 %% stun相关的请求
-
 %% 请求
 -define(PACKET_STUN_REQUEST, 16#30).
 %% 响应
@@ -74,18 +57,22 @@
 -define(PACKET_POLICY_REQUEST, 16#b0).
 -define(PACKET_POLICY_REPLY, 16#b1).
 
-%% stun请求的attr
--define(STUN_ATTR_CHANGE_NONE, 0).
--define(STUN_ATTR_CHANGE_PORT, 1).
--define(STUN_ATTR_CHANGE_PEER, 2).
-
 %% 欢迎消息
 -define(PACKET_WELCOME, 16#4F).
 
 %% 数据转发
 -define(PACKET_STUN_DATA, 16#FF).
 
--record(id_generator, {
-    tab :: atom(),
-    increment_id = 0 :: integer()
-}).
\ No newline at end of file
+%% 二级命名
+
+%% 定义事件信息
+-define(EVENT_KNOWN_IP, 16#01).
+-define(EVENT_DROP_IP, 16#02).
+-define(EVENT_NAT_CHANGED, 16#03).
+-define(EVENT_SEND_REGISTER, 16#04).
+-define(EVENT_NETWORK_SHUTDOWN, 16#FF).
+
+%% stun请求的attr
+-define(STUN_ATTR_CHANGE_NONE, 0).
+-define(STUN_ATTR_CHANGE_PORT, 1).
+-define(STUN_ATTR_CHANGE_PEER, 2).
\ No newline at end of file
diff --git a/apps/sdlan/src/quic/sdlan_quic_channel.erl b/apps/sdlan/src/quic/sdlan_quic_channel.erl
index 6a11373..63644a5 100644
--- a/apps/sdlan/src/quic/sdlan_quic_channel.erl
+++ b/apps/sdlan/src/quic/sdlan_quic_channel.erl
@@ -99,7 +99,7 @@ handle_event(internal, do_init, initializing, State=#state{conn = Conn}) ->
     {ok, _} = quicer:async_accept_stream(Conn, #{active => true}),
     {next_state, waiting_stream, State};
 
-handle_event(info, {quic, new_stream, Stream, Opts}, waiting_stream, State=#state{conn = Conn, max_packet_size = MaxPacketSize, heartbeat_sec = HeartbeatSec}) ->
+handle_event(info, {quic, new_stream, Stream, Opts}, waiting_stream, State=#state{max_packet_size = MaxPacketSize, heartbeat_sec = HeartbeatSec}) ->
     logger:debug("[sdlan_quic_channel] call new_stream: ~p, opts: ~p", [Stream, Opts]),
     %% 发送欢迎消息
     WelcomePkt = sdlan_pb:encode_msg(#sdl_welcome{
diff --git a/apps/sdlan/src/sdlan_network.erl b/apps/sdlan/src/sdlan_network.erl
index 394603d..d4e801c 100644
--- a/apps/sdlan/src/sdlan_network.erl
+++ b/apps/sdlan/src/sdlan_network.erl
@@ -197,7 +197,7 @@ handle_call({attach, ChannelPid, ClientId, Mac, Ip, Hostname}, _From,
             ip = Ip
         }),
         broadcast(fun(#endpoint{channel_pid = ChannelPid0}) ->
-            sdlan_quic_channel:send_event(ChannelPid0, ?PACKET_EVENT_NAT_CHANGED, NatChangedEvent)
+            sdlan_quic_channel:send_event(ChannelPid0, ?EVENT_NAT_CHANGED, NatChangedEvent)
                   end, [Mac], Endpoints),
 
         %% 清理就的绑定关系
@@ -251,7 +251,7 @@ handle_call({peer_info, SrcMac, DstMac}, _From, State = #state{endpoints = Endpo
                     nat_port = SrcNatPort,
                     v6_info = SrcV6Info
                 }),
-                sdlan_quic_channel:send_event(DstChannelPid, ?PACKET_EVENT_SEND_REGISTER, RegisterEvent)
+                sdlan_quic_channel:send_event(DstChannelPid, ?EVENT_SEND_REGISTER, RegisterEvent)
             end,
             {reply, {ok, {DstNatPeer, DstNatType}, DstV6Info}, State};
         _ ->
@@ -350,7 +350,7 @@ handle_cast({update_hole, SessionToken, ClientId, Mac, Peer, NatType, V6Info}, S
                 }),
                 logger:debug("[sdlan_network] client_id: ~p(~p), hole changed", [ClientId, Ip]),
                 broadcast(fun(#endpoint{channel_pid = ChannelPid}) ->
-                    sdlan_quic_channel:send_event(ChannelPid, ?PACKET_EVENT_NAT_CHANGED, NatChangedEvent)
+                    sdlan_quic_channel:send_event(ChannelPid, ?EVENT_NAT_CHANGED, NatChangedEvent)
                           end, [Mac], Endpoints)
             end,
             NEndpoint = Endpoint0#endpoint{hole = NHole, v6_info = V6Info, last_seen = erlang:monotonic_time(second)},
@@ -392,7 +392,7 @@ terminate(Reason, #state{network_id = NetworkId, endpoints = Endpoints}) ->
                 NetworkShutdownEvent = sdlan_pb:encode_msg(#sdl_network_shutdown_event{
                     message = <<"Network shutdown">>
                 }),
-                sdlan_quic_channel:send_event(ChannelPid, ?PACKET_EVENT_NETWORK_SHUTDOWN, NetworkShutdownEvent),
+                sdlan_quic_channel:send_event(ChannelPid, ?EVENT_NETWORK_SHUTDOWN, NetworkShutdownEvent),
                 sdlan_quic_channel:stop(ChannelPid, normal);
             false ->
                 ok
diff --git a/message.proto b/message.proto
index efaf5ab..df6ba9b 100644
--- a/message.proto
+++ b/message.proto
@@ -14,8 +14,7 @@ message SDLV6Info {
 }
 
 // 和super之间采用了quic协议通讯
-// 传输层采用: <<Len:16, Data/binary>>
-// 数据层采用: <<PacketType:8, Payload/binary>>
+// 传输层采用: <<Len:16, PacketType:8, Payload/binary>>
 
 message SDLWelcome {
     uint32 version = 1;