Ethernet Switch CLI Reference Guide
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CHAPTER 36 
MRSTP Commands
Use these commands to configure MRSTP on the Switch. 
36.1  MRSTP Overview 
The Switch allows you to configure multiple instances of Rapid Spanning Tree Protocol 
(RSTP) as defined in the following standard.
• IEEE 802.1w Rapid Spanning Tree Protocol
See Chapter 53 on page 173 for information on RSTP commands and Chapter 37 on page 127 
for information on MSTP commands. 
36.2  Command Summary
The following section lists the commands for this feature.
Table 84   Command Summary: mrstp
COMMAND DESCRIPTION M P
show mrstp <tree-index> Displays multiple rapid spanning tree configuration 
for the specified tree.
tree-index: this is a number identifying the RSTP 
tree configuration. 
Note: The number of RSTP tree 
configurations supported differs by 
model. Refer to your User’s Guide 
for details.
E3
spanning-tree mode <RSTP|MRSTP|MSTP> Specifies the STP mode you want to implement on 
the Switch.
C13
mrstp <tree-index> Activates the specified RSTP configuration. C 13
mrstp <tree-index> priority <0-61440> Sets the bridge priority of the Switch for the specified 
RSTP configuration.
mrstp <tree-index> hello-time <1-10> 
maximum-age <6-40> forward-delay <4-
30>
Sets the Hello Time, Maximum Age and Forward 
Delay values on the Switch for the specified RSTP 
configuration.
mrstp interface <port-list> Activates RSTP on the specified ports. C 13
mrstp interface <port-list> path-cost 
<1-65535>
Sets a path cost to the specified ports. C 13