Nortel Networks 42C4911 Switch User Manual


 
Alteon OS Application Guide
542C4911, January 2007
Chapter 5: Spanning Tree Group 105
Overview 106
Bridge Protocol Data Units (BPDUs) 107
Determining the Path for Forwarding BPDUs 107
Spanning Tree Group configuration guidelines 108
Multiple Spanning Trees 110
Default Spanning Tree configuration 110
Why Do We Need Multiple Spanning Trees? 111
Switch-Centric Spanning Tree Group 111
VLAN Participation in Spanning Tree Groups 112
Configuring Multiple Spanning Tree Groups 113
Port Fast Forwarding 115
Configuring Port Fast Forwarding 115
Fast Uplink Convergence 116
Configuration Guidelines 116
Configuring Fast Uplink Convergence 116
Chapter 6: Rapid Spanning Tree Protocol/Multiple Spanning Tree
Protocol 117
Rapid Spanning Tree Protocol 118
Port State Changes 118
Port Type and Link Type 119
RSTP Configuration Guidelines 119
RSTP Configuration Example 120
Multiple Spanning Tree Protocol 121
MSTP Region 121
Common Internal Spanning Tree 121
MSTP Configuration Guidelines 122
MSTP Configuration Example 122
Chapter 7: Quality of Service 123
Overview 124
Using ACL Filters 126
Summary of packet classifiers 126
Summary of ACL Actions 128
Understanding ACL Precedence 128
Using ACL Groups 129
ACL Metering and Re-marking 130