Chapter 4 Multiple STP

Question 1

What is Common Spanning-Tree (CST)?

Answer 1

It supports only one instance for an entire switch network without any possibility of load balancing.

Question 2

What is an MST Instance?

Answer 2

MST provides a blended approach by mapping one or multiple VLAN onto a single STP tree.

Question 3

What is an MST Region?

Answer 3

A group of MST switches with the same high level configuration is know as an MST region.

Question 4

MST uses a special STP instance called ?

Answer 4

The internal spanning tree (IST). Internal Spanning tree is always the first instance. Instance 0.

Question 5

What protocol defines MST as the spanning-tree protocol?

Answer 5

Spanning-tree mode mst.

Question 6

Define MST Instance priority using the following which methods?

Answer 6

1. Spanning-tree MST 1 priority 2

2. Spanning-tree MST 2 root primary

Question 7

All VLANs are associated to which MST instance by default?

Answer 7

Instance 0.

Question 8

The MST configuration submode must be entered with which command?

Answer 8

Spanning-tree mst configuration

Question 9

What is a PVST Simulation check?

Answer 9

The process of ensuring that the MST region is the STP root bridge for all the VLANs or none of the VLANs.

Question 10

What is MST Region boundary?

Answer 10

Any port that connects to a switch that is in a different MST region or that connects to 802.1D or 802.1W BPDUs.