Upgrading MLAG-STP Setup

To upgrade NVIDIA Onyx on an MLAG-STP setup from 3.6.610x to this version, there are two possible procedures:

Procedure 1

Make sure there are no loops in the fabric.
Disable STP. Run:
```
switch (config) # no spanning-tree
```
Perform the upgrade according to steps 1-10 in "Upgrading Operating System Software".
Enable STP – this step may lead to traffic loss while the STP state is converging. Run:
```
switch (config) # spanning-tree
```

Procedure 2:

Shutdown all ports on the MLAG slave.
Save configuration. Run:
```
switch (config) # configuration write
```
Upgrade MLAG slave according to steps 1-10 in "Upgrading Operating System Software".

Upgrade MLAG master. Run:

switch (config) # reload force immediate