Spanning-Tree Flashcards
What mode is defined in the IEEE 802.1s standard, that is used to enable multiple spanning trees for groups of one or more virtual local area networks(VLANs)?
spanning-tree mode mst
Which mode uses STP, not RSTP, which is defined in the IEEE 802.1D standard that creates a separate spanning tree instance for each VLAN and can be used with 802.1Q encapsulation?
spanning-tree mode pvst
What does MST stand for?
Multiple Spanning Tree
What does PSVT stand for?
Per-VLAN Spanning Tree Plus
Which mode uses RSTP which is defined in the IEEE 802.1w standard and combines the rapid transition of ports by RSTP with the creation of spanning trees for each VLAN by PVST+?
spanning-tree mode rapid-pvst
How does RSTP increase convergence speed?
by reducing the number of port states from five in STP to three.
What are the three port states for RSTP?
Discarding, learning, and forwarding
What are the three port states for RSTP?
Discarding
Learning
Forwarding
What is the default age out for RSTP?
6 seconds
What are the five port states for STP?
Disabled Blocking Listening Learning Forwarding
What is the “Root Port”?
It is the port in STP that is used to reach the root bridge.
What is the the “Designated Port”?
It is a forwarding port.
How many “Designated Ports” can there be?
There can only be “One” designated port per link.
What kind of ports are on the “Root Bridge” in STP?
All of the ports on a Root Bridge are considered “Designated Ports”.
Spanning Tree Protocol’s “Cost”: What is the cost of a 10Mbps Link Bandwidth?
The cost is 100
