Cisco WS-C6506 Software Manual page 6

Contents
Configuring Spanning Tree
7
C H A P T E R
Catalyst 6500 Series Switch Software Configuration Guide-Release 8.7
vi
Specifying the Channel Path Cost
Specifying the Channel VLAN Cost
Configuring Channel Load Balancing
Clearing the LACP Statistics
Displaying EtherChannel Traffic Utilization
Displaying the Outgoing Ports for a Specified Address or Layer 4 Port Number
Disabling an EtherChannel
Displaying the Spanning-Tree Information for EtherChannels
Clearing and Restoring the EtherChannel Counters
Clearing the EtherChannel Counters
Restoring the EtherChannel Counters
Understanding How Spanning Tree Protocols Work
Understanding How a Topology is Created
Understanding How a Switch Becomes the Root Switch
Understanding How Bridge Protocol Data Units Work
Calculating and Assigning Port Costs
Spanning-Tree Port States
Understanding How PVST+ and MISTP Modes Work
PVST+ Mode
7-13
Rapid-PVST+
7-13
MISTP Mode
7-13
MISTP-PVST+ Mode
Understanding How Bridge Identifiers Work
MAC Address Allocation
MAC Address Reduction
Understanding How Multiple Spanning Tree Works
Rapid Spanning Tree Protocol
MST-to-SST Interoperability
Common Spanning Tree
MST Instances
7-21
MST Configuration
7-21
MST Region
7-22
Message Age and Hop Count
MST-to-PVST+ Interoperability
Understanding How BPDU Skewing Works
Understanding How Layer 2 PDU Rate Limiting Works
Configuring PVST+ on the Switch
6-18
6-18
6-18
6-18
6-19
6-19
6-20
6-20
6-21
7-1
7-2
7-3
7-4
7-6
7-14
7-14
7-14
7-15
7-16
7-18
7-19
7-21
7-23
7-24
7-24
7-26
6-20
7-3
7-4
7-12
7-25
6-19
OL-8978-04