EtherChannel Flashcards
How does EtherChannel logically bundle links together into a _____ port
virtual
What are the two EtherChannel protocols?
PagP
LACP
You have just configured two EtherChannels between two switches. Each EtherChannel contains four physical links. How will STP react?
It will block on entire link
What mode manually places the interface in an EtherChannel without any negotiation?
on
If one side of an EtherChannel is set to “on” will it work the other side of the EtherChannel is set to “dynamic” or “auto”
No. Both must be set to “on”
What is the primary purpose of LACP?
to enable switchports with similar characteristics to form an EtherChannel through dynamic negotiation with adjoining switches
If one EtherChannel link is created between two switches that has four physical links, what will STP do?
Will not block any of them
What is the primary purpose of EtherChannel?
To provide additional bandwidth without the expense of link upgrades
What are the PagP modes?
auto, dynamic, on
What are the LACP modes?
active passive, on
Which EtherChannel mode is Cisco proprietary?
PagP
To form an EtherChannel, it is mandatory that all ports have the same what?
speed
duplex
VLAN information
STP version and settings
What is the maximum interfaces for an EtherChannel?
8
What command creates an EtherChannel?
channel-group 1 mode [active/passive/dynamic/auto]
What command allows you to enter the interface configuration mode of a created EtherChannel
interface port-channel 1
What command displays the general status of the EtherChannel interface?
show interface port-channel 1
When several port channel interfaces are configured on the same device, what command displays one line of information per port channel?
show etherchannel summary
What command displays information about the specific port channel interface
show etherchannel port-channel
What command displays the amount of time that has lapsed since the last physical interface was added to an EtherChannel bundle?
show ether channel 1 port-channel
What command displays load balancing information about the port channel?
show etherchannel 1 load-balance
By default, EtherChannel will load balance based on what?
source MAC address
What command displays a short summary of EtherChannel information?
show etherchannel brief
Which information is provided by the Load Value?
the percentage of use of the link
the percentage of the link
the session count of the link
the number source-destination pairs on the link
the number source-destination pairs on the link
Refer to the exhibit. While troubleshooting a switch, you executed the show interface port-channel 1 etherchannel command and it returned this output. Which information is provided by the Load value?
A. the percentage of use of the link
B. the preference of the link
C. the session count of the link
D. the number source-destination pairs on the link
D. the number source-destination pairs on the link
What are two load-balancing methods in the EtherChannel technology? (Choose two)
A. Combination of source port and IP to destination port and IP
B. Source IP to destination IP
C. Source port to destination port
D. Combination of source MAC and IP to destination MAC and IP
E. Source MAC to destination MAC
B. Source IP to destination IP
E. Source MAC to destination MAC
