From 9330f59ea347aed91e080c279f1138f779a15938 Mon Sep 17 00:00:00 2001
From: Chen Wu <chenwu@espressif.com>
Date: Fri, 5 Jul 2024 17:07:44 +0800
Subject: [PATCH] docs(ESPAT-2032): Added instance, protocol, txt parameters to
 AT+MDNS command

- Moved AT+MDNS doc from wifi_at_commands.rst to tcp_ip_at_commands.rst
- Added instance, protocol, txt parameters to AT+MDNS command
- Added AT+MDNS examples
---
 .../TCP-IP_AT_Examples.rst                    | 152 ++++++++++++++++++
 docs/en/AT_Command_Set/TCP-IP_AT_Commands.rst |  53 ++++++
 docs/en/AT_Command_Set/Wi-Fi_AT_Commands.rst  |  44 -----
 .../TCP-IP_AT_Examples.rst                    | 152 ++++++++++++++++++
 .../AT_Command_Set/TCP-IP_AT_Commands.rst     |  53 ++++++
 .../AT_Command_Set/Wi-Fi_AT_Commands.rst      |  44 -----
 6 files changed, 410 insertions(+), 88 deletions(-)

diff --git a/docs/en/AT_Command_Examples/TCP-IP_AT_Examples.rst b/docs/en/AT_Command_Examples/TCP-IP_AT_Examples.rst
index e6a9ccab..c0165d69 100644
--- a/docs/en/AT_Command_Examples/TCP-IP_AT_Examples.rst
+++ b/docs/en/AT_Command_Examples/TCP-IP_AT_Examples.rst
@@ -1861,3 +1861,155 @@ When a large amount of network data is expected to be received and the MCU canno
 
      +CIPRECVDATA:4,test
      OK
+
+.. _example-mdns:
+
+{IDF_TARGET_NAME} enables mDNS function, PC connects to the device's TCP server using a domain name
+-----------------------------------------------------------------------------------------------------
+
+#. Set the Wi-Fi mode to station.
+
+   Command:
+
+   .. code-block:: none
+
+     AT+CWMODE=1
+
+   Response:
+
+   .. code-block:: none
+
+     OK
+
+#. Connect to the router.
+
+   Command:
+
+   .. code-block:: none
+
+     AT+CWJAP="espressif","1234567890"
+
+   Response:
+
+   .. code-block:: none
+
+     WIFI CONNECTED
+     WIFI GOT IP
+
+     OK
+
+   Note:
+
+   - The SSID and password you entered may be different from those in the above command. Please replace the SSID and password with those of your router settings.
+
+#. Connect the PC to the same router which {IDF_TARGET_NAME} is connected to.
+
+   PC can discover the {IDF_TARGET_NAME} device only when they are in the same LAN.
+
+#. Use an mDNS tool on the PC to enable service discovery. For example, use `avahi-browse <https://linux.die.net/man/1/avahi-browse>`_ on linux (use `Bonjour <https://developer.apple.com/bonjour/>`_ on macOS or Windows).
+
+   Command:
+
+   .. code-block:: none
+
+     sudo avahi-browse -a -r
+
+#. {IDF_TARGET_NAME} device enables mDNS function.
+
+   Command:
+
+   .. code-block:: none
+
+     AT+MDNS=1,"espressif","_printer",35,"my_instance","_tcp",2,"product","my_printer","firmware_version","AT-V3.4.1.0"
+
+   Response:
+
+   .. code-block:: none
+
+     OK
+
+   Note:
+
+   - This command enables mDNS function and specifies the device instance name as ``my_instance``, service type as ``_printer``, port as ``35``, product as ``my_printer``, and firmware version as ``AT-V3.4.1.0``.
+
+#. (Optional) PC discovers the {IDF_TARGET_NAME} device.
+
+   The PC's ``avahi-browse`` tool will display:
+
+   .. code-block:: none
+
+     ...
+     + enx000ec6dd4ebf IPv4 my_instance                                   UNIX Printer         local
+     = enx000ec6dd4ebf IPv4 my_instance                                   UNIX Printer         local
+       hostname = [espressif.local]
+       address = [192.168.200.90]
+       port = [35]
+       txt = ["product=my_printer" "firmware_version=AT-V3.4.1.0"]
+
+   Note:
+
+   - This step is not necessary, it is just to verify the mDNS function of the {IDF_TARGET_NAME} device.
+
+#. {IDF_TARGET_NAME} device enables multiple connections.
+
+   Command:
+
+   .. code-block:: none
+
+     AT+CIPMUX=1
+
+   Response:
+
+   .. code-block:: none
+
+     OK
+
+#. {IDF_TARGET_NAME} device runs a TCP server on port ``35``.
+
+   Command:
+
+   .. code-block:: none
+
+     AT+CIPSERVER=1,35
+
+   Response:
+
+   .. code-block:: none
+
+     OK
+
+#. Use a TCP tool (For example, use `nc <https://netcat.sourceforge.net/>`_ on Linux or macOS, use `ncat <https://nmap.org/ncat/>`_ on Windows) on the PC to connect to {IDF_TARGET_NAME} device's TCP server using the domain name.
+
+   Command:
+
+   .. code-block:: none
+
+     nc espressif.local 35
+
+   {IDF_TARGET_NAME} device responds:
+
+   .. code-block:: none
+
+     0,CONNECT
+
+   Note:
+
+   - After the connection is established, data transmission can immediately take place between PC and {IDF_TARGET_NAME} device.
+
+#. {IDF_TARGET_NAME} device disables mDNS function.
+
+   Command:
+
+   .. code-block:: none
+
+     AT+MDNS=0
+
+   Response:
+
+   .. code-block:: none
+
+     OK
+
+   Note:
+
+   - Disabling mDNS function can reduce the device's power consumption to some extent.
diff --git a/docs/en/AT_Command_Set/TCP-IP_AT_Commands.rst b/docs/en/AT_Command_Set/TCP-IP_AT_Commands.rst
index e7dfc050..7a63f872 100644
--- a/docs/en/AT_Command_Set/TCP-IP_AT_Commands.rst
+++ b/docs/en/AT_Command_Set/TCP-IP_AT_Commands.rst
@@ -43,6 +43,7 @@ TCP/IP AT Commands
 -  :ref:`AT+CIPRECVLEN <cmd-CIPRECVLEN>`: Obtain socket data length in passive receiving mode.
 -  :ref:`AT+PING <cmd-CIPPING>`: Ping the remote host.
 -  :ref:`AT+CIPDNS <cmd-DNS>`: Query/Set DNS server information.
+-  :ref:`AT+MDNS <cmd-MDNS>`: Configure the mDNS function.
 -  :ref:`AT+CIPTCPOPT <cmd-TCPOPT>`: Query/Set the socket options.
 
 .. _cmd-tcpip-intro:
@@ -55,6 +56,7 @@ Introduction
 
   - Disable OTA commands (:ref:`AT+CIUPDATE <cmd-UPDATE>` and :ref:`AT+CIPFWVER <cmd-FWVER>`): ``Component config`` -> ``AT`` -> ``AT OTA command support``
   - Disable PING commands (:ref:`AT+PING <cmd-CIPPING>`): ``Component config`` -> ``AT`` -> ``AT ping command support``
+  - Disable mDNS commands (:ref:`AT+MDNS <cmd-MDNS>`): ``Component config`` -> ``AT`` -> ``AT MDNS command support``
   - Disable TCP/IP commands (Not recommended. Once disabled, all TCP/IP functions will be unavailable and you will need to implement these AT commands yourself): ``Component config`` -> ``AT`` -> ``AT net command support``
 
 .. _cmd-IPV6:
@@ -2419,6 +2421,57 @@ Example
     // third DNS Server based on IPv6: main DNS Server based on IPv6 in JiangSu Province, China
     AT+CIPDNS=1,"240c::6666","2001:4860:4860::8888","240e:5a::6666"
 
+.. _cmd-MDNS:
+
+:ref:`AT+MDNS <WiFi-AT>`: Configure the mDNS Function
+------------------------------------------------------------
+
+Set Command
+^^^^^^^^^^^
+
+**Command:**
+
+::
+
+    AT+MDNS=<enable>[,<"hostname">,<"service_type">,<port>][,<"instance">][,<"proto">][,<txt_number>][,<"key">,<"value">][...]
+
+**Response:**
+
+::
+
+    OK
+
+Parameters
+^^^^^^^^^^
+
+-  **<enable>**:
+
+   -  1: Enable the mDNS function. The following parameters need to be set.
+   -  0: Disable the mDNS function. Please do not set the following parameters.
+
+- **<"hostname">**: mDNS host name.
+- **<"service_type">**: mDNS service type.
+- **<port>**: mDNS service port.
+- **<"instance">**: mDNS instance name. Default: ``<"hostname">``.
+- **<"proto">**: mDNS service protocol. Recommended values: ``_tcp`` or ``_udp``. Default: ``_tcp``.
+- **<txt_number>**: the number of key-value pairs in the TXT record. Range: [1,10].
+- **<"key">**: key of the TXT record.
+- **<"value">**: value of the TXT record.
+- **[...]**: repeat the key-value pairs of TXT record according to the ``<txt_number>``.
+
+Example
+^^^^^^^^
+
+::
+
+    // Enable mDNS function. Set the hostname to "espressif", service type to "_iot", and port to 8080.
+    AT+MDNS=1,"espressif","_iot",8080  
+
+    // Disable mDNS function
+    AT+MDNS=0
+
+Detailed examples can be found in: :ref:`mDNS Example <example-mdns>`.
+
 .. _cmd-TCPOPT:
 
 :ref:`AT+CIPTCPOPT <TCPIP-AT>`: Query/Set the Socket Options
diff --git a/docs/en/AT_Command_Set/Wi-Fi_AT_Commands.rst b/docs/en/AT_Command_Set/Wi-Fi_AT_Commands.rst
index a0e7461e..df4a0041 100644
--- a/docs/en/AT_Command_Set/Wi-Fi_AT_Commands.rst
+++ b/docs/en/AT_Command_Set/Wi-Fi_AT_Commands.rst
@@ -29,7 +29,6 @@ Wi-Fi AT Commands
 -  :ref:`AT+CWSTARTSMART <cmd-STARTS>`: Start SmartConfig.
 -  :ref:`AT+CWSTOPSMART <cmd-STOPS>`: Stop SmartConfig.
 -  :ref:`AT+WPS <cmd-WPS>`: Enable the WPS function.
--  :ref:`AT+MDNS <cmd-MDNS>`: Configure the mDNS function.
 -  :ref:`AT+CWJEAP <cmd-JEAP>`: Connect to a WPA2 Enterprise AP.
 -  :ref:`AT+CWHOSTNAME <cmd-HOSTNAME>`: Query/Set the host name of an {IDF_TARGET_NAME} station.
 -  :ref:`AT+CWCOUNTRY <cmd-COUNTRY>`: Query/Set the Wi-Fi Country Code.
@@ -44,7 +43,6 @@ Introduction
 
   - Enable EAP commands (:ref:`AT+CWJEAP <cmd-JEAP>`): ``Component config`` -> ``AT`` -> ``AT WPA2 Enterprise command support``
   - Disable WPS commands (:ref:`AT+WPS <cmd-WPS>`): ``Component config`` -> ``AT`` -> ``AT WPS command support``
-  - Disable mDNS commands (:ref:`AT+MDNS <cmd-MDNS>`): ``Component config`` -> ``AT`` -> ``AT MDNS command support``
   - Disable smartconfig commands (:ref:`AT+CWSTARTSMART <cmd-STARTS>` and :ref:`AT+CWSTOPSMART <cmd-STOPS>`): ``Component config`` -> ``AT`` -> ``AT smartconfig command support``
   - Disable all Wi-Fi commands (Not recommended. Once disabled, all Wi-Fi and above functions will be unusable, and you will need to implement these AT commands yourself): ``Component config`` -> ``AT`` -> ``AT wifi command support``
 
@@ -1633,48 +1631,6 @@ Example
     AT+CWMODE=1
     AT+WPS=1
 
-.. _cmd-MDNS:
-
-:ref:`AT+MDNS <WiFi-AT>`: Configure the mDNS Function
-------------------------------------------------------------
-
-Set Command
-^^^^^^^^^^^
-
-**Command:**
-
-::
-
-    AT+MDNS=<enable>[,<hostname>,<service_name>,<port>]
-
-**Response:**
-
-::
-
-    OK 
-
-Parameters
-^^^^^^^^^^
-
--  **<enable>**:
-
-   -  1: Enable the mDNS function. The following three parameters need to be set.
-   -  0: Disable the mDNS function. The following three parameters does not need to be set.
-
--  **<hostname>**: mDNS host name.
--  **<service_name>**: mDNS service name.
--  **<port>**: mDNS port.
-
-Example
-^^^^^^^^
-
-::
-
-    AT+CWMODE=1
-    AT+CWJAP="1234567890","1234567890"
-    AT+MDNS=1,"espressif","_iot",8080  
-    AT+MDNS=0
-
 .. _cmd-JEAP:
 
 :ref:`AT+CWJEAP <WiFi-AT>`: Connect to a WPA2 Enterprise AP
diff --git a/docs/zh_CN/AT_Command_Examples/TCP-IP_AT_Examples.rst b/docs/zh_CN/AT_Command_Examples/TCP-IP_AT_Examples.rst
index f48d8e17..4f0e3ddc 100644
--- a/docs/zh_CN/AT_Command_Examples/TCP-IP_AT_Examples.rst
+++ b/docs/zh_CN/AT_Command_Examples/TCP-IP_AT_Examples.rst
@@ -1861,3 +1861,155 @@ TCP-IP AT 示例
 
      +CIPRECVDATA:4,test
      OK
+
+.. _example-mdns:
+
+{IDF_TARGET_NAME} 设备开启 mDNS 功能，PC 通过域名连接到设备的 TCP 服务器
+-----------------------------------------------------------------------------
+
+#. 设置 Wi-Fi 模式为 station。
+
+   命令：
+
+   .. code-block:: none
+
+     AT+CWMODE=1
+
+   响应：
+
+   .. code-block:: none
+
+     OK
+
+#. 连接到路由器。
+
+   命令：
+
+   .. code-block:: none
+
+     AT+CWJAP="espressif","1234567890"
+
+   响应：
+
+   .. code-block:: none
+
+     WIFI CONNECTED
+     WIFI GOT IP
+
+     OK
+
+   说明：
+
+   - 您输入的 SSID 和密码可能跟上述命令中的不同。请使用您的路由器的 SSID 和密码。
+
+#. PC 与 {IDF_TARGET_NAME} 设备连接同一个路由。
+
+   只有在同一个局域网中，PC 才能发现 {IDF_TARGET_NAME} 设备。
+
+#. 在 PC 上使用 mDNS 工具开启服务发现。例如 Linux 上使用 `avahi-browse <https://linux.die.net/man/1/avahi-browse>`_ （macOS 或 Windows 上使用 `Bonjour <https://developer.apple.com/bonjour/>`_）。
+
+   命令：
+
+   .. code-block:: none
+
+     sudo avahi-browse -a -r
+
+#. {IDF_TARGET_NAME} 设备开启 mDNS 功能。
+
+   命令：
+
+   .. code-block:: none
+
+     AT+MDNS=1,"espressif","_printer",35,"my_instance","_tcp",2,"product","my_printer","firmware_version","AT-V3.4.1.0"
+
+   响应：
+
+   .. code-block:: none
+
+     OK
+
+   说明：
+
+   - 此命令开启 mDNS 功能，表明了设备实例名称为 ``my_instance``，服务类型为 ``_printer``，端口为 ``35``，产品为 ``my_printer``，固件版本为 ``AT-V3.4.1.0``。
+
+#. （可选步骤）PC 端发现 {IDF_TARGET_NAME} 设备。
+
+   PC 端的 ``avahi-browse`` 工具会提示：
+
+   .. code-block:: none
+
+     ...
+     + enx000ec6dd4ebf IPv4 my_instance                                   UNIX Printer         local
+     = enx000ec6dd4ebf IPv4 my_instance                                   UNIX Printer         local
+       hostname = [espressif.local]
+       address = [192.168.200.90]
+       port = [35]
+       txt = ["product=my_printer" "firmware_version=AT-V3.4.1.0"]
+
+   说明：
+
+   - 此步骤不是必须的，只是为了验证 {IDF_TARGET_NAME} 设备的 mDNS 功能是否正常。
+
+#. {IDF_TARGET_NAME} 设备使能多连接。
+
+   命令：
+
+   .. code-block:: none
+
+     AT+CIPMUX=1
+
+   响应：
+
+   .. code-block:: none
+
+     OK
+
+#. {IDF_TARGET_NAME} 设备作为 TCP 服务器，端口为 ``35``。
+
+   命令：
+
+   .. code-block:: none
+
+     AT+CIPSERVER=1,35
+
+   响应：
+
+   .. code-block:: none
+
+     OK
+
+#. 在 PC 上使用 TCP 工具（例如，Linux 或 macOS 上使用 `nc <https://netcat.sourceforge.net/>`_，Windows 上使用 `ncat <https://nmap.org/ncat/>`_），通过域名连接到 {IDF_TARGET_NAME} 设备的 TCP 服务器。
+
+   命令：
+
+   .. code-block:: none
+
+     nc espressif.local 35
+
+   {IDF_TARGET_NAME} 设备响应：
+
+   .. code-block:: none
+
+     0,CONNECT
+
+   说明：
+
+   - 连接建立成功后，PC 和 {IDF_TARGET_NAME} 设备之间立即可以进行数据传输。
+
+#. {IDF_TARGET_NAME} 设备关闭 mDNS 功能。
+
+   命令：
+
+   .. code-block:: none
+
+     AT+MDNS=0
+
+   响应：
+
+   .. code-block:: none
+
+     OK
+
+   说明：
+
+   - 关闭 mDNS 功能能一定程度上减少设备的功耗。
diff --git a/docs/zh_CN/AT_Command_Set/TCP-IP_AT_Commands.rst b/docs/zh_CN/AT_Command_Set/TCP-IP_AT_Commands.rst
index eaceb9f6..d91adfba 100644
--- a/docs/zh_CN/AT_Command_Set/TCP-IP_AT_Commands.rst
+++ b/docs/zh_CN/AT_Command_Set/TCP-IP_AT_Commands.rst
@@ -43,6 +43,7 @@ TCP/IP AT 命令
 -  :ref:`AT+CIPRECVLEN <cmd-CIPRECVLEN>`：查询被动接收模式下套接字数据的长度
 -  :ref:`AT+PING <cmd-CIPPING>`：ping 对端主机
 -  :ref:`AT+CIPDNS <cmd-DNS>`：查询/设置 DNS 服务器信息
+-  :ref:`AT+MDNS <cmd-MDNS>`：设置 mDNS 功能
 -  :ref:`AT+CIPTCPOPT <cmd-TCPOPT>`：查询/设置套接字选项
 
 .. _cmd-tcpip-intro:
@@ -55,6 +56,7 @@ TCP/IP AT 命令
 
   - 禁用 OTA 命令（:ref:`AT+CIUPDATE <cmd-UPDATE>`、:ref:`AT+CIPFWVER <cmd-FWVER>`）：``Component config`` -> ``AT`` -> ``AT OTA command support``
   - 禁用 PING 命令（:ref:`AT+PING <cmd-CIPPING>`）：``Component config`` -> ``AT`` -> ``AT ping command support``
+  - 禁用 mDNS 命令（:ref:`AT+MDNS <cmd-MDNS>`）：``Component config`` -> ``AT`` -> ``AT MDNS command support``
   - 禁用 TCP/IP 命令（不推荐。一旦禁用，所有 TCP/IP 功能将无法使用，您需要自行实现这些 AT 命令）： ``Component config`` -> ``AT`` -> ``AT net command support``
 
 .. _cmd-IPV6:
@@ -2419,6 +2421,57 @@ ping 对端主机
     // 第三个基于 IPv6 的 DNS 服务器：江苏省主 DNS 服务器
     AT+CIPDNS=1,"240c::6666","2001:4860:4860::8888","240e:5a::6666"
 
+.. _cmd-MDNS:
+
+:ref:`AT+MDNS <WiFi-AT>`：设置 mDNS 功能
+------------------------------------------------------------
+
+设置命令
+^^^^^^^^
+
+**命令：**
+
+::
+
+    AT+MDNS=<enable>[,<"hostname">,<"service_type">,<port>][,<"instance">][,<"proto">][,<txt_number>][,<"key">,<"value">][...]
+
+**响应：**
+
+::
+
+    OK
+
+参数
+^^^^
+
+- **<enable>**：
+
+   - 1：开启 mDNS 功能，后续参数需要填写
+   - 0：关闭 mDNS 功能，后续参数无需填写
+
+- **<"hostname">**：mDNS 主机名称。
+- **<"service_type">**：mDNS 服务类型。
+- **<port>**：mDNS 服务端口。
+- **<"instance">**：mDNS 实例名称。默认值：``<"hostname">``。
+- **<"proto">**：mDNS 服务协议。建议值：``_tcp`` 或 ``_udp``，默认值：``_tcp``。
+- **<txt_number>**：mDNS TXT 记录的数量。范围：[1,10]。
+- **<"key">**：TXT 记录的键。
+- **<"value">**：TXT 记录的值。
+- **[...]**：根据 ``<txt_number>`` 继续填写 TXT 记录的键值对。
+
+示例
+^^^^
+
+::
+
+    // 开启 mDNS 功能，主机名为 "espressif"，服务类型为 "_iot"，端口为 8080
+    AT+MDNS=1,"espressif","_iot",8080
+
+    // 关闭 mDNS 功能
+    AT+MDNS=0
+
+详细示例参考： :ref:`mDNS 示例 <example-mdns>`。
+
 .. _cmd-TCPOPT:
 
 :ref:`AT+CIPTCPOPT <TCPIP-AT>`：查询/设置套接字选项
diff --git a/docs/zh_CN/AT_Command_Set/Wi-Fi_AT_Commands.rst b/docs/zh_CN/AT_Command_Set/Wi-Fi_AT_Commands.rst
index 489979e2..96574226 100644
--- a/docs/zh_CN/AT_Command_Set/Wi-Fi_AT_Commands.rst
+++ b/docs/zh_CN/AT_Command_Set/Wi-Fi_AT_Commands.rst
@@ -29,7 +29,6 @@ Wi-Fi AT 命令集
 -  :ref:`AT+CWSTARTSMART <cmd-STARTS>`：开启 SmartConfig
 -  :ref:`AT+CWSTOPSMART <cmd-STOPS>`：停止 SmartConfig
 -  :ref:`AT+WPS <cmd-WPS>`：设置 WPS 功能
--  :ref:`AT+MDNS <cmd-MDNS>`：设置 mDNS 功能
 -  :ref:`AT+CWJEAP <cmd-JEAP>`：连接 WPA2 企业版 AP
 -  :ref:`AT+CWHOSTNAME <cmd-HOSTNAME>`：查询/设置 {IDF_TARGET_NAME} Station 的主机名称
 -  :ref:`AT+CWCOUNTRY <cmd-COUNTRY>`：查询/设置 Wi-Fi 国家代码
@@ -44,7 +43,6 @@ Wi-Fi AT 命令集
 
   - 启用 EAP 命令（:ref:`AT+CWJEAP <cmd-JEAP>`）： ``Component config`` -> ``AT`` -> ``AT WPA2 Enterprise command support``
   - 禁用 WPS 命令（:ref:`AT+WPS <cmd-WPS>`）：``Component config`` -> ``AT`` -> ``AT WPS command support``
-  - 禁用 mDNS 命令（:ref:`AT+MDNS <cmd-MDNS>`）：``Component config`` -> ``AT`` -> ``AT MDNS command support``
   - 禁用 smartconfig 命令（:ref:`AT+CWSTARTSMART <cmd-STARTS>`、:ref:`AT+CWSTOPSMART <cmd-STOPS>`）：``Component config`` -> ``AT`` -> ``AT smartconfig command support``
   - 禁用所有 Wi-Fi 命令（不推荐。一旦禁用，所有 Wi-Fi 以及以上的功能将无法使用，您需要自行实现这些 AT 命令）： ``Component config`` -> ``AT`` -> ``AT wifi command support``
 
@@ -1633,48 +1631,6 @@ Wi-Fi AT 命令集
     AT+CWMODE=1
     AT+WPS=1
 
-.. _cmd-MDNS:
-
-:ref:`AT+MDNS <WiFi-AT>`：设置 mDNS 功能
-------------------------------------------------------------
-
-设置命令
-^^^^^^^^
-
-**命令：**
-
-::
-
-    AT+MDNS=<enable>[,<hostname>,<service_name>,<port>]
-
-**响应：**
-
-::
-
-    OK 
-
-参数
-^^^^
-
--  **<enable>**：
-
-   -  1: 开启 mDNS 功能，后续参数需要填写
-   -  0: 关闭 mDNS 功能，后续参数无需填写
-
--  **<hostname>**：mDNS 主机名称
--  **<service_name>**：mDNS 服务名称
--  **<port>**：mDNS 端口
-
-示例
-^^^^
-
-::
-
-    AT+CWMODE=1
-    AT+CWJAP="1234567890","1234567890"
-    AT+MDNS=1,"espressif","_iot",8080  
-    AT+MDNS=0
-
 .. _cmd-JEAP:
 
 :ref:`AT+CWJEAP <WiFi-AT>`：连接 WPA2 企业版 AP