STP ··················································································································································································· 61
STP protocol packets ············································································································································· 61
Basic concepts in STP ············································································································································ 62
RSTP ················································································································································································· 68
PVST ················································································································································································· 68
MSTP ················································································································································································ 68
STP, RSTP, and PVST limitations ·························································································································· 68
MSTP features ························································································································································ 68
MSTP basic concepts ············································································································································ 69
How MSTP works ·················································································································································· 73
Protocols and standards ················································································································································ 73
STP configuration task list ····································································································································· 74
RSTP configuration task list ··································································································································· 75
PVST configuration task list··································································································································· 76
MSTP configuration task list ································································································································· 77
Setting the spanning tree mode ···································································································································· 78
Configuring an MST region ·········································································································································· 79
Configuration procedure ······································································································································ 79
Configuring the device priority ····································································································································· 81
Configuring spanning tree timers ································································································································· 82
Configuration procedure ······································································································································ 83
Configuring the timeout factor ······································································································································ 84
Configuring edge ports ················································································································································· 85
Configuration procedure ······································································································································ 85
Configuring path costs of ports ···································································································································· 85
Configuring path costs of ports ···························································································································· 87
Configuration example ········································································································································· 88
Configuring the port priority ········································································································································· 88
Configuring the port link type ······································································································································· 89
Configuration procedure ······································································································································ 89
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