EtherChannels

Question 1

Order of Operations to configure L2 Etherchannel

Answer 1

Set physical interfaces switchport mode (trunk/access/dynamic)
Create port-channel with channel-group command
Ensure port-channel switchport mode matches physical port mode

Question 2

Order of Operations to configure L3 EtherChannel

Answer 2

Create port-channel interface with port-channel command
On port-channel interface:
Set no switchport
Set IP address
On physical interfaces:
Set no switchport
Set no ip address
Assign interfaces to port-channel with channel-group command

Question 3

What standard is defined in 802.3ad

Answer 3

LACP

Question 4

LACP mode which sends and receives LACPDUs

Answer 4

Active

Question 5

LACP mode which only receives LACPDUs

Answer 5

Passive

Question 6

Etherchannel mode which forces physical interfaces into a bundle

Answer 6

On/Static

Question 7

Interface matching requirements for static etherchannel

Answer 7

Interfaces must have matching speed/duplex

Question 8

Maximum number of interfaces allowed in LACP etherchannel

Answer 8

16, 8 active and 8 standby

Question 9

True/False : etherchannel load balancing method is set per interface

Answer 9

False, etherchannel load balancing is set globally

Question 10

Default etherchannel load balancing method

Answer 10

src-mac

Question 11

True/False : the etherchannel load balancing is only locally significant to the switch

Answer 11

True, each switch can have a different load balancing method based on its position in the network

Question 12

How are active ports in an LACP etherchannel chosen?

Answer 12

Switch with lower system ID becomes the system in charge of deciding which ports are active and which are standby. Ports with a lower port priority are then chosen to be active