OS10 Enterprise Edition User Guide Release 10.4.0E(R3)

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RPVST+ configuration

RPVST+ mode is supported on VLT ports. Before you configure VLT on peer switches, configure RPVST+ in the network. You can use RPVST+ for initial loop prevention during the VLT startup phase.

Configure RPVST+ on both the VLT peers. This creates an RPVST+ instance for every VLAN configured in the system. The RPVST+ instances in the primary VLT peer control the VLT LAGs on both the primary and secondary peers.

  • Enable RPVST+ on each peer node in CONFIGURATION mode.
    spanning-tree mode rapid-pvst

Configure RPVST+ — peer 1

OS10(config)# spanning-tree mode rapid-pvst

Configure RPVST+ — peer 2

OS10(config)# spanning-tree mode rapid-pvst
View RPVST+ information on VLT
OS10# show spanning-tree virtual-interface 
                                    
                                    VFP(VirtualFabricPort) of vlan 100 is Designated Blocking
                                    Edge port: No (default)
                                    Link type: point-to-point (auto)
                                    Boundary: No, Bpdu-filter: Disable, Bpdu-Guard: Disable, Shutdown-on-Bpdu-Guard-violation: No
                                    Root-Guard: Disable, Loop-Guard: Disable
                                    Bpdus (MRecords) Sent: 7, Received: 9
                                    Interface                                                                       Designated
                                    Name                           PortID    Prio      Cost      Sts         Cost      Bridge ID               PortID  
                                    -------------------------------------------------------------------------------------------------------------------
                                    VFP(VirtualFabricPort)         0.1       0         1         BLK         0         4196         90b1.1cf4.a602  0.1    
                                 
View RPVST+ information on VLT in detail
OS10# show spanning-tree virtual-interface detail 
                                    Port 1 (VFP(VirtualFabricPort)) of vlan1 is designated Forwarding
                                    Port path cost 1, Port priority 0, Port Identifier 0.1
                                    Designated root priority: 4097, address: 90:b1:1c:f4:a6:02
                                    Designated bridge priority: 4097, address: 90:b1:1c:f4:a6:02
                                    Designated port ID: 0.1, designated path cost: 0
                                    Number of transitions to forwarding state: 1
                                    Edge port: No (default)
                                    Link Type: Point-to-Point
                                    BPDU Sent: 202, Received: 42
                                    Port 1 (VFP(VirtualFabricPort)) of vlan100 is designated Forwarding
                                    Port path cost 1, Port priority 0, Port Identifier 0.1
                                    Designated root priority: 4196, address: 90:b1:1c:f4:a6:02
                                    Designated bridge priority: 4196, address: 90:b1:1c:f4:a6:02
                                    Designated port ID: 0.1, designated path cost: 0
                                    Number of transitions to forwarding state: 1
                                    Edge port: No (default)
                                    Link Type: Point-to-Point
                                    BPDU Sent: 101, Received: 21
                                    
                                 

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