Vol 1 Ch 8 - Implementing Ethernet Virtual LANs

Question 1

What is VTP?

Answer 1

VTP stands fro VLAN Trunking Protocol. It is a Cisco proprietary protocol that propagates the definition of Virtual Local Area Networks (VLAN) on the whole local area network. To do this, VTP carries VLAN information to all the switches in a VTP domain.

Question 2

What is DTP?

Answer 2

DTP stands for Dynamic Trunking Protocol. It alow sthe negotiation of a trunk between two switches.

Question 3

What are the four DTP administrative modes?

Answer 3

1. access
2. trunk
3. dynamic desirable
4. dynamic auto

Question 4

What are the two trunking standards?

Answer 4

1. ISL (Inter-Switch Link) - no longer supported by Cisco

2. IEEE 802.1Q

Question 5

What VLANs are supported?

Answer 5

The 12 bit VLAN ID supports a theoretical maximum of 4,096 VLANs, from VLAN ID 0 to VLAN ID 4,095.
Cisco switches only support 4,094 VLANs in two ranges.
NORMAL RANGE VLANs:
VLAN ID 1 to 1005.
EXTENDED RANGE VLANs:
VLAN ID 1006 to 4094.

Question 6

What are the global configuration commands used with Virtual LANs?

Answer 6

vlan _____

[no] shutdown ______

Question 7

What are the user EXEC commands used with Virtual LANs?

Answer 7

show interfaces \_\_\_\_\_\_\_\_ switchport
show interfaces \_\_\_\_\_\_\_\_ trunk
show vlan \_\_\_\_\_\_\_\_
show vlan [ brief | id \_\_\_\_\_\_ / name \_\_\_\_\_\_ | summary
show vtp status

Question 8

What are the VLAN subcommands?

Answer 8

name _______

[no] shutdown

Question 9

What are the interface subcommands used with VLANs?

Answer 9

switchport mode [access | dynamic (auto\desirable) | trunk]
switchport access vlan _____
switchport trunk encapsulation [dot1q | isl | negotiate]
swithchport trunk native vlan _______
switchport nonegotiate
switchport voice vlan ______
switchport trunk allowed vlan [add | all | except | remove] __________