R211x-HP Flexfabric 11900 Layer 2 - LAN Switching Configuration Guide
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Configuration procedure ······································································································································ 60
Verifying the configuration ··································································································································· 61
Configuring spanning tree protocols ························································································································ 62
STP ··················································································································································································· 62
STP protocol packets ············································································································································· 62
Basic concepts in STP ············································································································································ 63
Calculation process of the STP algorithm ··········································································································· 64
RSTP ················································································································································································· 69
MSTP ················································································································································································ 69
MSTP features ························································································································································ 69
MSTP basic concepts ············································································································································ 69
How MSTP works ·················································································································································· 73
MSTP implementation on devices ························································································································ 74
Protocols and standards ················································································································································ 74
Spanning tree configuration task lists ·························································································································· 74
STP configuration task list ····································································································································· 75
RSTP configuration task list ··································································································································· 75
MSTP configuration task list ································································································································· 76
Setting the spanning tree mode ···································································································································· 77
Configuring an MST region ·········································································································································· 78
Configuring the root bridge or a secondary root bridge ·························································································· 79
Configuring the current device as the root bridge of a specific spanning tree ·············································· 79
Configuring the current device as a secondary root bridge of a specific spanning tree ······························ 79
Configuring the device priority ····································································································································· 80
Configuring the maximum hops of an MST region ···································································································· 80
Configuring the network diameter of a switched network ························································································· 80
Configuring spanning tree timers ································································································································· 81
Configuration restrictions and guidelines ··········································································································· 81
Configuration procedure ······································································································································ 82
Configuring the timeout factor ······································································································································ 82
Configuring the BPDU transmission rate ······················································································································ 83
Configuring edge ports ················································································································································· 83
Configuration restrictions and guidelines ··········································································································· 83
Configuration procedure ······································································································································ 83
Configuring path costs of ports ···································································································································· 84
Specifying a standard for the device to use when it calculates the default path cost ··································· 84
Configuring path costs of ports ···························································································································· 85
Configuration example ········································································································································· 86
Configuring the port priority ········································································································································· 86
Configuring the port link type ······································································································································· 87
Configuration restrictions and guidelines ··········································································································· 87
Configuration procedure ······································································································································ 87
Configuring the mode a port uses to recognize and send MSTP packets ······························································· 87
Enabling outputting port state transition information ·································································································· 88
Enabling the spanning tree feature ······························································································································ 88
Performing mCheck ························································································································································ 89
Configuration restrictions and guidelines ··········································································································· 89
Performing mCheck globally ································································································································ 89
Performing mCheck in interface view ················································································································· 89
Configuring Digest Snooping ······································································································································· 90
Configuration restrictions and guidelines ··········································································································· 90
Configuration procedure ······································································································································ 90
Digest Snooping configuration example ············································································································· 91
Configuring No Agreement Check ······························································································································ 92