Cisco 300-115 Exam Study Material

300-115 Question 23

 

Refer to the exhibit. 

What is the result of the configuration?
A. The EtherChannels would not form because the load-balancing method must match on the devices.
B. The Ether Channels would form and function properly even though the load-balancing and Ether Channel modes do not match.
C. The Ether Channels would form, but network loops would occur because the load-balancing methods do not match.
D. The Ether Channels would form and both devices would use the dst-ip load-balancing method because Switch1 is configured with Ether Channel mode active.
Correct Answer: B
Explanation:
An ether channel will form if one end is active and the other is passive. The table below sum-marizes the results for LACP channel establishment based on the
configuration of each side of a link:
LACP Channel Establishment
S1 S2 Established?
On On Yes
Active/Passive Active Yes
On/Active/Passive Not Configured No
On Active No
Passive/On Passive No
Load balancing can only be configured globally. As a result, all channels (manually configured, PagP, or LACP) use the same load-balancing. This is true for the switch globally, although each switch involved in the ether channel can have non matching parameters for load balancing.
http://www.cisco.com/c/en/
us/td/docs/switches/lan/catalyst4500/12- 2/54sg/configuration/guide/config/channel.html#wp1020804