chapter 2 Flashcards Preview

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Flashcards in chapter 2 Deck (30):
1

VLAN

a logical group of end devices

2

Modern design of a vlan

1 Vlan = 1 ip subnet

3

Trunks

connect switches to transport multiple vlans across a single physical link (multiplexing)

4

How far should a vlan at the access layer extend

no further than their associated distribution switch

5

how do you disable trunk negotiation on a switch port

change the mode to access
"Switchport mode access"

6

ISL Inter Switch Link

cisco proprietary trunking protocol

7

802.1Q IEEE

a widely supported industry standard protocol

8

native vlan

an untagged vlan on an 802.1q trunked switchport

9

DTP Dynamic Trunking Protocol

a cisco proprietary protocol for dynamically negotiating trunk links

10

DTP port mode Acess

permanent non-trunking mode

11

DTP port mode Trunk

permanent trunking mode

12

DTP port mode Nonegotiate

permanent trunking mode but prevents the interface from generating dtp frames used to connect devices that do not support dtp

13

DTP port mode Dynamic desirable

the interface attempts to convert the link to a trunk link

14

DTP port mode auto

the interface is willing to convert the link to a trunk link but nodes not negotiate it this is the default mode

15

VTP Vlan Trunking Protocol

cisco-proprietary protocol that automates the propagation of vlan information between switches via trunk links to minimize misconfigurations

16

VTP domains

define sets of interconnected switches sharing the same configuration

17

VTP mode client

- cannot create, change, or delete vlans on cmd line interface
- forwards advertisements to other switches
- does not save vlan configuration in NVRAM

18

VTP mode Server

- can create, modify and delete vlans
- sends and forwards advertisements to other switches
- saves vlan configuration in NVRAM

19

VTP mode Transparent

- Can create, modify and delete vlans only on the local switch
- forwards vtp advertisements received from other switches in the same management domain
- Saves vlan configuration in NVRAM

20

VTP Operation

- VTP advertisements are sent as multicast frames
- VTP servers and clients are synchronized to the latest revision number
- VTP advertisements are sent every 5 mins or when something is changed

21

VTP Pruning

prevents flooded traffic from propagating to switches that do not have members in specific vlans

22

VTP Versions 1

V1 transparent switches inspect vtp messages fro the domain name and version and forward a message only if the version and domain name match

23

VTP Versions 2

V2 transparent switches forward VTP messages in transparent mode without checking versions

24

VTP Versions 3

V3 adds pramry and secondary server roles
- extended vlan range support 1025-4094
- supports private vlans

25

VTP Message Type Summary Advertisements

inform adjacent switches of the current vtp domain name and the configuration revision number

26

VTP Message Type Subset Advertisements

contains a list of vlan information

27

VTP Message Type Requests

this happens when a switch is reset
the vtp domain name has been changed
the switch has received a vtp summary advertisement with a higher configuration revision than its own

28

EtherChannel Technology

upto 8 physical links can be bundled into a single logical ether channel link

29

EtherChannel Management Protocols PAgP (Port Aggregation Protocol)

a cisco proprietary protocol that aids in the automatic creation of the fast etherchannel links

30

EtherChannel Management Protocols LACP ( Link Aggregation Control Protocol)

is part of an IEEE specification that also allows several physical ports to be bundled together to form an etherchannel
- better descriptive names for modes