diff --git a/Documentation/mboxctl.md b/Documentation/mboxctl.md
index 49bf90e..27e07d6 100644
--- a/Documentation/mboxctl.md
+++ b/Documentation/mboxctl.md
@@ -1,110 +1,3 @@
-Copyright 2017 IBM
+Please reference the canonical mbox protocol documentation:
 
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-  http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
-## Intro
-
-This document describes the reference mailbox control program contained in this
-repository.
-
-The mailbox control program is a program which can be used to generate dbus
-messages to control the operation of the mailbox daemon.
-
-## Files
-
-The mailbox control program is implemented entirely in the mboxctl.c file.
-
-## Operation
-
-### Invocation
-
-The mailbox control program is invoked with a command and any arguments which
-that command takes.
-
-### Sending Command
-
-The appropriate dbus message is then generated and sent on the dbus.
-
-### Receiving Commands
-
-After sending a command mboxctl then waits for a response from the daemon on
-the dbus and processes the response.
-
-A message is printed to convey the response provided by the daemon. It mboxctl
-is run in silent mode then no output is generated and the exit code reflects
-the response.
-
-## DBUS Protocol
-
-### Commands
-
-```
-0x00: Ping		- Ping the daemon
-			- Args: NONE
-			- Resp: NONE
-0x01: Daemon State	- Get the daemon status
-			- Args: NONE
-			- Resp[0]: Daemon Status:
-				0x00 - Active
-				0x01 - Suspended
-0x02: Reset		- Reset the daemon (same as the reset mbox command)
-			- Args: NONE
-			- Resp: NONE
-0x03: Suspend		- Suspend the daemon
-				- Allow the BMC to manage concurrent flash
-				  access
-				- The daemon will return BUSY to mbox window
-				  commands
-				- Will return Success if daemon successfully
-				  of already suspended
-			- Args: NONE
-			- Resp: NONE
-0x04: Resume		- Resume the daemon
-				- Will return Sucess if daemon successfully
-				  or already resumed
-			- Args[0]: Flash Modified:
-					"clean" - Not Modified (daemon won't
-						  clear its cache)
-					"modified" - Modified (daemon will clear
-						     its cache)
-			- Resp: NONE
-0x05: Clear Cache	- Tell the daemon its data source has been modified
-				- Causes the daemon to clear its cache
-			- Args: NONE
-			- Resp: NONE
-0x06: Kill		- Terminates the daemon
-			- Args: NONE
-			- Resp: NONE
-0x07: LPC State		- Query the state of the lpc mapping
-			- Args: NONE
-			- Resp[0]: LPC Bus Mapping State:
-					0x00 - Invalid (implies internal daemon
-					       error)
-					0x01 - Flash (LPC bus maps flash)
-					0x02 - Memory (LPC bus maps reserved
-					       memory)
-```
-
-### Return Values
-
-```
-0x00: Success	- Command succeeded
-0x01: Internal	- Internal DBUS Error
-0x02: Invalid	- Invalid command or parameters
-0x03: Rejected	- Daemon rejected the request
-			- If this occurs on a suspend command then the BMC must
-			  not access the flash device until a suspend command
-			  succeeds
-0x04: Hardware	- BMC Hardware Error
-0x05: Memory	- Memory Allocation Failed
-```
+    https://github.com/openbmc/mboxbridge/blob/master/Documentation/mboxctl.md