Cisco ONS 15454 SDH Configuration Manual page 6

Contents
Configuring VLANs
8
C H A P T E R
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration Guide, R8.0
vi
Bridge ID, Switch Priority, and Extended System ID
Spanning-Tree Timers
Creating the Spanning-Tree Topology
Spanning-Tree Interface States
Blocking State
7-6
Listening State
7-7
Learning State
7-7
Forwarding State
Disabled State
7-7
Spanning-Tree Address Management
STP and IEEE 802.1Q Trunks
Spanning Tree and Redundant Connectivity
Accelerated Aging to Retain Connectivity
RSTP
7-9
Supported RSTP Instances
Port Roles and the Active Topology
Rapid Convergence
7-11
Synchronization of Port Roles
Bridge Protocol Data Unit Format and Processing
Processing Superior BPDU Information
Processing Inferior BPDU Information
Topology Changes
7-14
Interoperability with IEEE 802.1D STP
Configuring STP and RSTP Features
Default STP and RSTP Configuration
Disabling STP and RSTP
Configuring the Root Switch
Configuring the Port Priority
Configuring the Path Cost
Configuring the Switch Priority of a Bridge Group
Configuring the Hello Time
Configuring the Forwarding-Delay Time for a Bridge Group
Configuring the Maximum-Aging Time for a Bridge Group
Verifying and Monitoring STP and RSTP Status
8-1
Understanding VLANs
8-1
Configuring IEEE 802.1Q VLAN Encapsulation
IEEE 802.1Q VLAN Configuration
7-4
7-4
7-5
7-7
7-8
7-8
7-8
7-9
7-9
7-9
7-12
7-13
7-14
7-14
7-15
7-15
7-16
7-16
7-17
7-17
7-18
7-19
7-19
7-20
8-2
8-3
7-4
7-20
7-20