Contents
xiv
Catalyst 2960 Switch Software Configuration Guide
OL-8603-04
Configuring the Root Switch 15-14
Configuring a Secondary Root Switch 15-16
Configuring Port Priority 15-16
Configuring Path Cost 15-18
Configuring the Switch Priority of a VLAN 15-19
Configuring Spanning-Tree Timers 15-20
Configuring the Hello Time 15-20
Configuring the Forwarding-Delay Time for a VLAN 15-21
Configuring the Maximum-Aging Time for a VLAN 15-21
Configuring the Transmit Hold-Count 15-22
Displaying the Spanning-Tree Status 15-22
CHAPTER
16 Configuring MSTP 16-1
Understanding MSTP 16-2
Multiple Spanning-Tree Regions 16-2
IST, CIST, and CST 16-3
Operations Within an MST Region 16-3
Operations Between MST Regions 16-4
IEEE 802.1s Terminology 16-5
Hop Count 16-5
Boundary Ports 16-6
IEEE 802.1s Implementation 16-6
Port Role Naming Change 16-7
Interoperation Between Legacy and Standard Switches 16-7
Detecting Unidirectional Link Failure 16-8
Interoperability with IEEE 802.1D STP 16-8
Understanding RSTP 16-8
Port Roles and the Active Topology 16-9
Rapid Convergence 16-10
Synchronization of Port Roles 16-11
Bridge Protocol Data Unit Format and Processing 16-12
Processing Superior BPDU Information 16-13
Processing Inferior BPDU Information 16-13
Topology Changes 16-13
Configuring MSTP Features 16-14
Default MSTP Configuration 16-14
MSTP Configuration Guidelines 16-15
Specifying the MST Region Configuration and Enabling MSTP 16-16
Configuring the Root Switch 16-17
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