RSTP and MSTP
Port type and link type
Spanning Tree Configuration includes the following parameters to support RSTP and MSTP:
•Edge port
•Link type
Although these parameters are configured for Spanning Tree Groups
Edge port
A port that connects to a server or stub network is called an edge port. Therefore, ports
Edge ports do not take part in Spanning Tree, and should not receive BPDUs. If a port with edge enabled does receive a BPDU, it begins STP processing until it is
Link type
The link type determines how the port behaves in regard to Rapid Spanning Tree. The link type corresponds to the duplex mode of the port. A
RSTP configuration guidelines
This section provides important information about configuring Rapid Spanning Tree Groups:
•When RSTP is turned on, STP parameters apply only to STP Group 1.
•When RSTP is turned on, all VLANs from STP Groups other than STP Group 1 are moved to STP Group 1. The other STP Groups
RSTP configuration example
This section provides steps to configure Rapid Spanning Tree on the switch, using the Command Line Interface (CLI) or the
Configuring Rapid Spanning Tree (CLI example)
1.Configure port and VLAN membership on the switch, as described in the “Configuring ports and VLANs (CLI example)” section in the “VLANs” chapter of this guide.
2.Set the Spanning Tree mode to Rapid Spanning Tree.
>> /cfg/l2/mrst | (Select Multiple Spanning Tree menu) |
>> Multiple Spanning Tree# mode rstp | (Set mode to Rapid Spanning Tree) |
>> Multiple Spanning Tree# on | (Turn Rapid Spanning Tree on) |
3. Apply and save the changes.
>> | # | apply | (Apply the configuration) |
>> | # | save | (Save the configuration) |
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