HP 445946-001 Link type, Port priority, RSTP and MSTP, Port path cost, Bridge priority, Creating a VLAN, Quality of Service, Configuration guidelines

	Contents
Introduction .........................................................................................................................................	68
Overview............................................................................................................................................	68
Bridge Protocol Data Units ....................................................................................................................	68
Determining the path for forwarding BPDUs........................................................................................	69
Bridge priority ...........................................................................................................................	69
Port priority ...............................................................................................................................	69
Port path cost ............................................................................................................................	69
Spanning Tree Group configuration guidelines ........................................................................................	69
Default Spanning Tree configuration ..................................................................................................	69
Adding a VLAN to a Spanning Tree Group ........................................................................................	70
Creating a VLAN ............................................................................................................................	70
Rules for VLAN tagged ports.............................................................................................................	70
Adding and removing ports from STGs ..............................................................................................	70
Assigning cost to ports and trunk groups ............................................................................................	71
Multiple Spanning Trees .......................................................................................................................	71
Why do we need Multiple Spanning Trees? .......................................................................................	71
VLAN participation in Spanning Tree Groups .....................................................................................	72
Configuring Multiple Spanning Tree Groups .......................................................................................	73
Configuring Switch 1 (CLI example) .............................................................................................	73
Configuring Switch 2 (CLI example) .............................................................................................	73
Configuring Switch 1 (BBI example) .............................................................................................	74
Port Fast Forwarding ............................................................................................................................	76
Configuring Port Fast Forwarding ......................................................................................................	76
Fast Uplink Convergence ......................................................................................................................	76
Configuration guidelines ..................................................................................................................	76
Configuring Fast Uplink Convergence................................................................................................	76
RSTP and MSTP
Introduction .........................................................................................................................................	77
Rapid Spanning Tree Protocol................................................................................................................	77
Port state changes ...........................................................................................................................	77
Port type and link type .....................................................................................................................	78
Edge port..................................................................................................................................	78
Link type ...................................................................................................................................	78
RSTP configuration guidelines ...........................................................................................................	78
RSTP configuration example .............................................................................................................	78
Configuring Rapid Spanning Tree (CLI example) ............................................................................	78
Configuring Rapid Spanning Tree Protocol (BBI example)................................................................	79
Multiple Spanning Tree Protocol.............................................................................................................	80
MSTP region...................................................................................................................................	80
Common Internal Spanning Tree .......................................................................................................	80
MSTP configuration guidelines ..........................................................................................................	81
MSTP configuration example ............................................................................................................	81
Configuring Multiple Spanning Tree Protocol (CLI example) .............................................................	81
Configuring Multiple Spanning Tree Protocol (BBI example).............................................................	82
Quality of Service
Introduction .........................................................................................................................................	86
Overview............................................................................................................................................	86
Using ACL filters ..................................................................................................................................	87
Summary of packet classifiers ...........................................................................................................	87
Summary of ACL actions ..................................................................................................................	89
Understanding ACL precedence........................................................................................................	89
	5