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Related Flashcards
Cards In This Set
| Front | Back |
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What is another name for an STP Hello message?
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Bridge Protocol Data Unit (BPDU)
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Which factors are used in determining the root bridge?
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The bridge/switch with the lowest bridge ID.
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What are the components of a Bridge ID?
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A 2 byte Priority value + the 6 byte MAC address
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What is the specification number for Spanning Tree Protocol?
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802.1d
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What are the "stable" port states in STP?
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Forward & Blocking
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What are the "intermediate" or "interim" port states in STP?
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Listening & Learning
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What does each non-root switch do to a Hello message that it receives?
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It increments the Hello cost value by the port cost of the interface on which it was received and sends out all interfaces.
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What is a root port?
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The port on a non-root switch that receives root Hello messages with the lowest cost.
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What is a designated bridge/switch?
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The switch that forwards the lowest-cost hello message onto that specific LAN segment.
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What is a designated port?
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The interface used to connect to the LAN segment where it serves as the Designated Bridge/Switch.
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Which ports can be placed into a forward state?
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All ports on the root bridge, the root port of each non-root bridge, and the designated port for a LAN segment.
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How does a port transition from blocking to forwarding?
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It first transitions to listening, then to learning, then to forwarding.
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Which STP state waits to make sure there are no new lower cost hellos being received?
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Listening
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Which STP state allows the switch to learn the new location of MAC addresses without forwarding hellos.
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Learning
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What is the term used to describe a network tha connects multiple buildings that are physically close?
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Campus LAN
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