Technical data

BLADEOS 6.3 Command Reference
270
 Chapter 4: Configuration Commands BMD00186-B, April 2010
RSTP/MSTP/PVRST Configuration
BLADEOS supports the IEEE 802.1w Rapid Spanning Tree Protocol (RSTP) and IEEE 802.1s
Multiple Spanning Tree Protocol (MSTP), and Per VLAN Rapid Spanning Tree Protocol (PVRST).
MSTP allows you to map many VLANs to a small number of Spanning Tree Groups, each with its
own topology.
Up to 32 Spanning Tree Groups can be configured in MSTP mode. MRST is turned on by default
and the default STP mode is RSTP.
Note – When Multiple Spanning Tree is turned on, VLAN 4095 is moved from Spanning Tree
Group 128 to the Common Internal Spanning Tree (CIST). When Multiple Spanning Tree is turned
off, VLAN 4095 is moved back to Spanning Tree Group 128.
Table 158 Multiple Spanning Tree Configuration Commands
Command Syntax and Usage
spanning-tree mstp name <1-32 characters>
Configures a name for the MSTP region. All devices within an MSTP region must have the
same region name.
Command mode: Global configuration
spanning-tree mstp version <0-65535>
Configures a version number for the MSTP region. The version is used as a numerical
identifier for the region. All devices within an MSTP region must have the same version
number.
Command mode: Global configuration
spanning-tree mstp maximum-hop <4-60>
Configures the maximum number of bridge hops a packet may traverse before it is dropped.
The default value is 20.
Command mode: Global configuration