Advanced Traffic Management Guide K/KA/KB.15.15

Selecting MSTP as the spanning tree mode............................................................................79
Clearing spanning tree debug counters.................................................................................79
Resetting the configuration name of the MST region in which a switch resides............................79
Designating the revision number of the MST region for a switch...............................................79
Setting the spanning tree compatibility mode.........................................................................80
Setting the time interval between listening, learning and forwarding states................................80
Setting spanning tree to operate in 802. ID legacy mode........................................................81
Setting spanning tree to operate with 802. ID legacy path cost values......................................81
Specifying the time interval between BPDU transmissions.........................................................81
Setting the hop limit for BPDUs............................................................................................81
Setting the maximum age of received STP information.............................................................82
Manipulating the pending MSTP configuration.......................................................................82
Setting the bridge priority for a region and determining the root switch.....................................82
Enabling SNMP traps.........................................................................................................83
Configuring MSTP per-port parameters......................................................................................83
Enabling immediate transition to forwarding on end nodes......................................................83
Identifying edge ports automatically.....................................................................................83
Specifying the interval between BPDU transmissions...............................................................84
Forcing a port to send RST/MST BPDUs................................................................................84
Determining which ports are forwarding ports by assigning port cost........................................84
Informing the switch of the device type to which a port connects .............................................85
Determining which port to use for forwarding........................................................................85
Denying a port the role of root port......................................................................................85
Denying a port propagation change information....................................................................86
Configuring BPDU filtering.......................................................................................................86
Viewing BPDU filtering............................................................................................................87
Enabling and disabling BPDU protection...................................................................................87
Viewing BPDU protection status................................................................................................88
Enabling and disabling PVST protection on ports........................................................................89
Enabling and disabling PVST filters on ports...............................................................................89
Re-enabling a port manually....................................................................................................89
Viewing ports configured with PVST protection and filtering..........................................................90
Listing ports to see which have PVST protection or filtering enabled...............................................90
Configuring MST instance parameters.......................................................................................90
Setting the bridge priority for an instance..................................................................................91
Configuring MST instance per-port parameters............................................................................92
Assigning a port cost for an MST instance.............................................................................92
Setting the priority for a port in a specified MST instance........................................................92
Setting the priority for specified ports for the IST.....................................................................92
Enabling or disabling spanning tree operation...........................................................................93
Enabling an entire MST region at once or exchanging one region configuration for another........93
Creating a pending MSTP configuration................................................................................94
Preconfiguring an MSTP regional topology.................................................................................95
Preconfiguring VLANs in an MST instance.............................................................................95
Configuring MSTP instances with the VLAN range option (Example).........................................96
Saving the current configuration before a software upgrade.....................................................97
Viewing MSTP statistics............................................................................................................98
Viewing global MSTP status.................................................................................................98
Viewing detailed port information........................................................................................99
Viewing status for a specific MST instance...........................................................................100
Viewing the MSTP configuration.............................................................................................101
Viewing the global MSTP configuration...............................................................................101
Viewing per-instance MSTP configurations...........................................................................102
Viewing the region-level configuration.................................................................................103
Viewing the pending MSTP configuration............................................................................104
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