Regardless of which spanning tree protocol you choose to use, BIG-IP Configuration utility offers a complete set of default configuration settings. Except for
choosing a preferred spanning tree protocol to use, there are very few configuration settings
that you need to modify to use the spanning tree feature effectively.
An alternate way to configure spanning tree protocols is to use tmsh.
When you configure spanning tree on a BIG-IP system, you must first decide which protocol, or mode, you want to enable. Because MSTP recognizes VLANs, using MSTP is preferable for the BIG-IP system. However, all bridges in a network environment that want to use spanning tree must run the same spanning tree protocol. If a legacy bridge running RSTP or STP is added to the network, the BIG-IP system must switch to that same protocol.
Fortunately, you do not need to continually reconfigure the BIG-IP system spanning tree mode
whenever a legacy bridge is added to the network. Instead, a BIG-IP system interface can detect
the addition of a legacy bridge and automatically fall back to either RSTP or STP mode. If the
legacy bridge is later removed from the network, you can use the BIG-IP Configuration utility to
manually reset the interface back to running MSTP.
Once you have enabled a spanning tree mode, you can configure a set of global options. These
options are the same options that are defined in the IEEE standards for the spanning tree
protocols. While you can use the default settings in most cases, a few settings require user