Brocade Network OS Command Reference v4.1.0 - Manual (Page 605)

Network OS Command Reference 567
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protocol spanning-tree
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protocol spanning-tree
Designates the context for spanning tree.
Synopsis protocol spanning-tree {mstp | rstp | stp | pvst | rpvst}
no protocol spanning-tree
Operands mstp Specifies the Multiple Spanning Tree Protocol (MSTP).
rstp Specifies the Rapid Spanning Tree (RSTP).
stp Specifies the Spanning Tree Protocol (STP).
pvst Specifies Per-VLAN Spanning Tree Protocol Plus (PVST+).
rpvst Specifies Rapid Per-VLAN Spanning Tree Protocol Plus (R-PVST+).
Defaults STP is not enabled. STP is not required in a loop-free topology.
Command Modes Global configuration mode
Description Use this command to create a context for the protocol specified.
Usage Guidelines Consider enabling STP to detect or avoid loops. You must turn off one form of STP before turning
on another form.
Packet drops or packet flooding may occur if you do not enable xSTP on all devices connected on
both sides of parallel links.
If xSTP is enabled over VCS, this command must be executed on all RBridge nodes.
Brocade Network OS v4.1.0 supports PVST+ and R-PVST+only. The PVST and R-PVST protocols are
proprietary to Cisco and are not supported.
Enter no protocol spanning-tree to delete the context and all the configurations defined within the
context or protocol for the interface.
Examples To enable the Spanning Tree Protocol:
switch(config)# protocol spanning-tree stp
See Also show spanning-tree