Non-edge ports are categorized in two link types: point-to-point and shared.
Spanning Tree Protocols Hwajung Lee. Modified from Slides Courtesy of Cisco Networking Academy. Contents Spanning Tree Concepts #clear spanning-tree detected-protocols. S1(config)#vlan 1. S1(config)#spanning-tree mode rapid-pvst. S1(config)#spanning-tree vlan 1 root primary.
Jan 17, clear spanning-tree detected-protocols. To restart the protocol migration process and force renegotiation with neighboring switches on the interface, use the clear spanning-tree detected-protocols command in privileged EXEC mode.
clear spanning-tree detected-protocols [ interface interface-id] Syntax Descriptionchannel-group-number: Channel group number.
They must allow the frame lifetime to expire for forwarded frames that have used the old topology.
The range is 1 to Description. Clear a bridge protocol data unit (BPDU) error condition caused by the detection of a possible bridging loop from Spanning Tree Protocol (STP) operation. clear spanning-tree detected-protocols Example: Switch # clear spanning-tree detected-protocols (Recommended for Rapid PVST+ mode only) If any port on the switch is connected to a port on a legacy IEEE D switch, this command restarts the protocol migration process on the entire switch.
Jul 05, Device# clear spanning-tree detected-protocols If any port on the device is connected to a port on a legacy IEEE D device, this command.
clearspanning-tree detected-protocols Torestarttheprotocolmigrationprocessandforcerenegotiationwithneighboringdevicesontheinterface, usethe clear spanning-tree detected-protocols commandinprivilegedEXECmode.
However, once an interface on the switch receives a new spanning-tree protocol BPDU, the interface returns to the blocked state.
Link Types are used to predetermine the role a port plays in the network and stands-by for immediate transition to forwarding state if certain conditions are met.
Manually unblock an interface using the operational mode command: content_copy zoom_out_map. [email protected]> clear ethernet-switching bpdu-error interface. May 19, Configure Rapid Spanning Tree Protocol on DLS1.
Use the clear spanning-tree detectedprotocols privileged EXEC command to flush any stored PVST information. DLS1# conf t DLS1(config)# spanning-tree mode rapid-pvst DLS1(config)# end DLS1#clear spanning-tree detected-protocols DLS1# Then verify the protocol.
Use the show span vlan command:Estimated Reading Time: 12 mins. S1#clear spanning-tree detected-protocols. Now we’ve just migrated to Rapid-PVST+. Clearing the spanning-tree detected-protocols is not mandatory but is a good practice. Now let’s check the configuration with show spanning-tree vlan vlan-id and with show run. S1# show spanning-tree.
VLAN Spanning tree enabled protocol rstp. Root IDPriority Mar 08, We can look at running the clear spanning-tree detected-protocols command and see if the network returns to normal after the reconvergence.
Or you could manually pull one of the redundant cable connecting switch-c1 which would cause a convergence shrubmulching.barted Reading Time: 9 mins.