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18 Cards in this Set
- Front
- Back
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What is Multiple Spanning Tree (MST)?
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STP type that can map one or more VLANs to a STP instance.
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Does MST interoperate with 802.1q and PVST+?
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Yes
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What is a MST Instance (MSTI)?
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A number of VLANs are mapped to an instance MST.
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What is an MST region?
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A groups of switches that have the same MST parameters.
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What parameters define an MST Region?
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Configuration name
MST revision number MST instance-to-VLAN mapping |
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How many MSTIs are supported in a single MST Region?
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16 (0 - 15)
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What is MST Instance 0 reserved for?
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The IST.
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What MST Instance is allowed to send and receive BPDUs?
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Instance 0
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What is an Internal Spanning Tree (IST) instance?
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It works out the loop-free topology inside each MST region.
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How to you enable MST on a switch?
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The "spanning-tree mode mst" command.
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How do you enter the MST configuration mode?
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The "spanning-tree mst configuration" command.
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What do you configure in the MST configuration mode?
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Region name
Configuration revision number VLAN instance map |
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What BPDU version does MST use?
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3
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Do the MST configuration revision numbers need to match for all switches in an MST region?
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Yes
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Can a switch run MST and PVST+ at the same time?
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No
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When the command "spanning-tree mode mst" is entered, what else is turned on by default?
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RSTP
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What must be added to spanning-tree commands (such as bridge priority, port priority, and port cast) to edit MST?
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mst <instance-id>
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What command shows the MST configuration?
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show pending
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