diff --git a/deployment.rst b/deployment.rst
index 3d424c9..9463bdf 100644
--- a/deployment.rst
+++ b/deployment.rst
@@ -57,150 +57,69 @@
 
    Finally, we are going to install SD-Fabric with the information we prepared in Step 1 to 5.
 
-Step 1: Provision Switches
---------------------------
+Step 1: Access to the switch console
 
-We follow Open Network Install Environment (ONIE) way to install Open Network Linux (ONL) image to switch.
-To work with the SD-Fabric environment, we have customized the ONL image to support related packages and dependencies.
+There are two ways to access the switch console:
 
-Image source file can be found on ONF repository `opennetworkinglab/OpenNetworkLinux <https://github.com/opennetworkinglab/OpenNetworkLinux>`_.
-You can also download pre-compiled artifacts from `Github Release page <https://github.com/opennetworkinglab/OpenNetworkLinux/releases>`_
+ * Access via Baseboard Management Controller(BMC)
+ * Access via console interface
 
+Access via the BMC
+^^^^^^^^^^^^^^^^^^
 
-.. note::
-    If you're not familiar with ONIE/ONL environment, please check `Getting Started <https://github.com/opencomputeproject/OpenNetworkLinux/blob/master/docs/GettingStarted.md>`_ to
-    see how to install the ONL image to an ONIE supported switch.
-
-Below is an example about how to install the ONL image.
-
-1. Prepare a server which is accessible by the switch and then download the
-pre-compiled installer from the release page.
+For some platforms, you can connect to an embedded system loaded with BMC system.
+For example, Wedge100BF series is loaded with OpenBMC system that allows you to connect it via SSH
+When the switch started, OpenBMC uses DHCP to initiate it's IP address. You may setting up static DHCP record on
+your DHCP server or checkout the DHCP lease file from the DHCP server to get the IP address.
 
 .. code-block::
 
-   wget https://github.com/opennetworkinglab/OpenNetworkLinux/releases/download/v1.4.3/ONL-onf-ONLPv2_ONL-OS_2021-07-16.2159-5195444_AMD64_INSTALLED_INSTALLER -o onl-installer
-   sudo python -m http.server 80
+   $ ssh root@[Open BMC IP]
 
-2. Reboot the switch to enter ONIE installation mode
+The default user and password is `root`` and `0penBmc`.
 
-   In order to reinstall an ONL image, you must change the ONIE bootloader to
-   "Rescue Mode".
+In the OpenBMC system you can use Serial-over-LAN(sol) to access the main board.
 
-   Once the switch is powered on, it should retrieve an IP address on the OpenBMC
-   interface with DHCP. Here we use ``10.0.0.131`` as an example.
-   OpenBMC uses these default credentials
+Access via console interface
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-   .. code-block::
+If the platform doesn't support BMC, you can attach your laptop/PC to the switch with a
+console cable and use the following command to access it:
 
-      username: root
-      password: 0penBmc
+.. code-block::
 
-   Login to OpenBMC with SSH:
+   $ screen /dev/[console device] [baud rate]
 
-   .. code-block::
+The `console device` may be vary, it will usually be something like `ttyUSB...`, `tty.usb.....`.
+Please checkout the console cable vendor for more information.
 
-      $ ssh root@10.0.0.131
-      The authenticity of host '10.0.0.131 (10.0.0.131)' can't be established.
-      ECDSA key fingerprint is SHA256:...
-      Are you sure you want to continue connecting (yes/no)? yes
-      Warning: Permanently added '10.0.0.131' (ECDSA) to the list of known hosts.
-      root@10.0.0.131's password:
-      root@bmc:~#
+The `baud rate` can also be vary, depends on the switch vendor.
+Please checkout the switch user manual or contact vendor to get the information.
 
-   Using the Serial-over-LAN Console, enter ONL
+Step 2: Provision Switches
+--------------------------
 
-   .. code-block::
+We follow Open Network Install Environment (ONIE) way to install SONiC image to switch.
+To work with the SD-Fabric environment, we have customized the SONiC image to support related features.
 
-      root@bmc:~# /usr/local/bin/sol.sh
-      You are in SOL session.
-      Use ctrl-x to quit.
-      -----------------------
+You can download pre-compiled images from `Github Release page <https://github.com/stratum/sonic-base-image/releases>`_
 
-      root@onl:~#
-
-   .. note::
-
-      If `sol.sh` is unresponsive, please try to restart the mainboard with
-
-      .. code-block::
-
-         root@onl:~# wedge_power.sh reset
-
-   Change the boot mode to rescue mode and reboot
-
-   .. code-block::
-
-      root@onl:~# onl-onie-boot-mode rescue
-      [1053033.768512] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null)
-      [1053033.936893] EXT4-fs (sda3): re-mounted. Opts: (null)
-      [1053033.996727] EXT4-fs (sda3): re-mounted. Opts: (null)
-      The system will boot into ONIE rescue mode at the next restart.
-
-      root@onl:~# reboot
-
-   At this point, ONL will go through it's shutdown sequence and ONIE will start.
-   If it does not start right away, press the Enter/Return key a few times - it
-   may show you a boot selection screen. Pick ``ONIE`` and ``Rescue`` if given a
-   choice.
-
-3. Install ONL installer
-
-   Now that the switch is in Rescue mode
-
-   Then run the ``onie-nos-install`` command, with the URL of the management
-   server (here we use ``10.0.0.129`` as an example) on the management network segment
-
-   .. code-block::
-
-      ONIE:/ # onie-nos-install http://10.0.0.129/onie-installer
-      discover: Rescue mode detected. No discover stopped.
-      ONIE: Unable to find 'Serial Number' TLV in EEPROM data.
-      Info: Fetching http://10.0.0.129/onie-installer ...
-      Connecting to 10.0.0.129 (10.0.0.129:80)
-      installer            100% |*******************************|   322M  0:00:00 ETA
-      ONIE: Executing installer: http://10.0.0.129/onie-installer
-      installer: computing checksum of original archive
-      installer: checksum is OK
-      ...
-
-   The installation will now start, and then ONL will boot culminating in
-
-   .. code-block::
-
-      Open Network Linux OS ONL-wedge100bf-32qs, 2020-11-04.19:44-64100e9
-
-      localhost login:
-
-      The default ONL login is::
-
-      username: root
-      password: onl
-
-   If you login, you can verify that the switch is getting it's IP address via DHCP
-
-   .. code-block::
-
-      root@localhost:~# ip addr
-      ...
-      3: ma1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
-            link/ether 00:90:fb:5c:e1:97 brd ff:ff:ff:ff:ff:ff
-            inet 10.0.0.130/25 brd 10.0.0.255 scope global ma1
-      ...
-
-4. (Optional) Setup switch IP and hostname after the installation if DHCP is not available
-
-.. warning::
-
-   Stop and return to :ref:`Post-ONL configuration <aether:edge_deployment/fabric_switch_bootstrap:post-onl configuration>`
-   and continue the remaining steps there if you came from Aether docs.
-   Otherwise, please continue the rest of the page here.
+.. note::
+    If you're not familiar with ONIE/SONiC environment, please check `Getting Started <https://github.com/sonic-net/SONiC/wiki/Quick-Start>`_ to
+    see how to install the SONiC to an ONIE supported switch.
 
 
-Step 2: Configure switches as special Kubernetes nodes
+Once SONiC is started on the switch, you need to disable SONiC services before deploy Stratum on it.
+Otherwise Stratum containers won't be started.
+
+.. code-block::
+
+   admin@sonic$ sudo systemctl stop sonic.target sonic-delayed.taget
+   admin@sonic$ sudo systemctl disable sonic.target sonic-delayed.taget
+
+Step 3: Configure switches as special Kubernetes nodes
 ------------------------------------------------------
 
-Our `ONL <https://github.com/opennetworkinglab/OpenNetworkLinux>`_ version
-includes all packages required by running the Kubernetes on top of it.
 Once the Kubernetes is ready, the `Stratum <https://opennetworking.org/stratum/>`_ application will be deployed to the switch to manage it.
 
 Unlike server, switch has less CPU and memory resources and we should avoid
@@ -229,17 +148,17 @@
      leaf1   Ready    worker   27d   v1.18.8
      leaf2   Ready    worker   27d   v1.18.8
 
-Step 3: Prepare ONOS network configuration
+Step 4: Prepare ONOS network configuration
 ------------------------------------------
    See :ref:`onos_network_config` for instructions
 
-Step 4: Prepare Stratum chassis configuration
+Step 5: Prepare Stratum chassis configuration
 ---------------------------------------------
    See See :ref:`stratum_chassis_config` for instructions
 
 .. _install_sd_fabric:
 
-Step 5: Install SD-Fabric with Helm
+Step 6: Install SD-Fabric with Helm
 -----------------------------------
 
 To install SD-Fabric into your Kubernetes cluster, follow instructions