HP 438031-B21 - 1:10Gb Ethernet BL-c Switch Application Manual page 5

Introduction ......................................................................................................................................... 66
Overview............................................................................................................................................ 66
Bridge Protocol Data Units .................................................................................................................... 66
Determining the path for forwarding BPDUs........................................................................................ 67
Bridge priority ........................................................................................................................... 67
Port priority ............................................................................................................................... 67
Port path cost ............................................................................................................................ 67
Spanning Tree Group configuration guidelines ........................................................................................ 67
Default Spanning Tree configuration .................................................................................................. 67
Adding a VLAN to a Spanning Tree Group ........................................................................................ 68
Creating a VLAN ............................................................................................................................ 68
Rules for VLAN tagged ports............................................................................................................. 68
Adding and removing ports from STGs .............................................................................................. 68
Assigning cost to ports and trunk groups ............................................................................................ 69
Multiple Spanning Trees ....................................................................................................................... 69
Why do we need Multiple Spanning Trees? ....................................................................................... 70
VLAN participation in Spanning Tree Groups ..................................................................................... 71
Configuring Multiple Spanning Tree Groups ....................................................................................... 71
Configuring Switch 1 (CLI example) ............................................................................................. 71
Configuring Switch 2 (CLI example) ............................................................................................. 71
Configuring Switch 1 (BBI example) ............................................................................................. 72
Port Fast Forwarding ............................................................................................................................ 74
Configuring Port Fast Forwarding ...................................................................................................... 74
Fast Uplink Convergence ...................................................................................................................... 74
Configuration guidelines .................................................................................................................. 74
Configuring Fast Uplink Convergence ................................................................................................ 74
RSTP and MSTP
Introduction ......................................................................................................................................... 75
Rapid Spanning Tree Protocol................................................................................................................ 75
Port state changes ........................................................................................................................... 75
Port type and link type ..................................................................................................................... 76
Edge port.................................................................................................................................. 76
Link type ................................................................................................................................... 76
RSTP configuration guidelines ........................................................................................................... 76
RSTP configuration example ............................................................................................................. 76
Configuring Rapid Spanning Tree (CLI example) ............................................................................ 76
Configuring Rapid Spanning Tree Protocol (BBI example)................................................................ 77
Multiple Spanning Tree Protocol............................................................................................................. 78
MSTP region................................................................................................................................... 78
Common Internal Spanning Tree ....................................................................................................... 78
MSTP configuration guidelines .......................................................................................................... 79
MSTP configuration example ............................................................................................................ 79
Configuring Multiple Spanning Tree Protocol (CLI example) ............................................................. 79
Configuring Multiple Spanning Tree Protocol (BBI example)............................................................. 80
Quality of Service
Introduction ......................................................................................................................................... 84
Overview............................................................................................................................................ 84
Using ACL filters .................................................................................................................................. 85
Summary of packet classifiers ........................................................................................................... 85
Summary of ACL actions .................................................................................................................. 87
Understanding ACL precedence ........................................................................................................ 87
Contents
5