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Allied Telesis AT-8100 Series User Manual

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AT-8100 Switch Command Line User’s Guide

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Setting the Bridge Priority .................................................................................................................. 823
Enabling or Disabling BPDU Guard................................................................................................... 823

Configuring the Port Parameters.............................................................................................................. 825

Configuring Port Costs ...................................................................................................................... 825
Configuring Port Priorities.................................................................................................................. 826
Designating Point-to-point and Shared Ports .................................................................................... 826
Designating Edge Ports ..................................................................................................................... 826
Enabling or Disabling RSTP Loop-guard........................................................................................... 827
Enabling or Disabling BPDU Guard................................................................................................... 827

Disabling the Rapid Spanning Tree Protocol ........................................................................................... 829
Displaying RSTP Settings ........................................................................................................................ 830

Chapter 57

: RSTP Commands ................................................................................................................. 831

NO SPANNING-TREE PORTFAST ......................................................................................................... 833
NO SPANNING-TREE ERRDISABLE-TIMEOUT ENABLE..................................................................... 834
NO SPANNING-TREE LOOP-GUARD .................................................................................................... 835
NO SPANNING-TREE PORTFAST BPDU-GUARD................................................................................ 836
NO SPANNING-TREE RSTP ENABLE ................................................................................................... 837
SHOW SPANNING-TREE ....................................................................................................................... 838
SPANNING-TREE ERRDISABLE-TIMEOUT ENABLE ........................................................................... 840
SPANNING-TREE ERRDISABLE-TIMEOUT INTERVAL........................................................................ 841
SPANNING-TREE FORWARD-TIME ...................................................................................................... 842
SPANNING-TREE GUARD ROOT .......................................................................................................... 843
SPANNING-TREE HELLO-TIME ............................................................................................................. 844
SPANNING-TREE LINK-TYPE ................................................................................................................ 845
SPANNING-TREE LOOP-GUARD .......................................................................................................... 846
SPANNING-TREE MAX-AGE .................................................................................................................. 847
SPANNING-TREE MODE RSTP ............................................................................................................. 848
SPANNING-TREE PATH-COST.............................................................................................................. 849
SPANNING-TREE PORTFAST ............................................................................................................... 850
SPANNING-TREE PORTFAST BPDU-GUARD ...................................................................................... 851
SPANNING-TREE PRIORITY (Bridge Priority)........................................................................................ 852
SPANNING-TREE PRIORITY (Port Priority) ........................................................................................... 853
SPANNING-TREE RSTP ENABLE.......................................................................................................... 854

Chapter 58

: Multiple Spanning Tree Protocol ........................................................................................ 855

Overview .................................................................................................................................................. 856
Multiple Spanning Tree Instance (MSTI).................................................................................................. 857
MSTI Guidelines....................................................................................................................................... 860
VLAN and MSTI Associations .................................................................................................................. 861
Ports in Multiple MSTIs ............................................................................................................................ 862
Multiple Spanning Tree Regions .............................................................................................................. 863

Region Guidelines ............................................................................................................................. 865
Common and Internal Spanning Tree (CIST) .................................................................................... 866
MSTP with STP and RSTP................................................................................................................ 866

Summary of Guidelines............................................................................................................................ 868
Associating VLANs to MSTIs ................................................................................................................... 870
Connecting VLANs Across Different Regions .......................................................................................... 872
MSTP Root Guard.................................................................................................................................... 874

Chapter 59

: MSTP Commands ................................................................................................................. 875

INSTANCE MSTI-ID PRIORITY............................................................................................................... 877
INSTANCE MSTI-ID VLAN ...................................................................................................................... 879
NO SPANNING-TREE ERRDISABLE-TIMEOUT ENABLE..................................................................... 880
NO SPANNING-TREE PORTFAST ......................................................................................................... 881
NO SPANNING-TREE MSTP ENABLE ................................................................................................... 882