Do Brocade switches(FastIron, NetIron, ICX, etc) support using a per vlan spanning tree or do they only support a single spanning tree instance for all VLANs?
If they support per vlan:
- Is it enabled by default?
- What command(s) are used to disable/enable per vlan spanning tree for STP and RSTP?
We are not going to use MST so disregard that as a semi-answer.
Best Answer
It's important to note that PVST/PVST+ is Cisco proprietary.
They do support one instance of STP per VLAN, and it is enabled by default. You can enable/disable STP on the following levels (taken from the NetIron config docs):
Depending on your code rev, you can enter config mode for the VLAN and either do:
or
I know that newer NetIron gear has PVST/PVST+ compatibility modes which you can turn on at the interface level with:
But this also implies that you're going to be running MST, which you said you're not going to do.