Week 6: EtherChannel

Question 1

If Fast Ethernet ports are bundled into an EtherChannel what is the max throughput supported on a Catalyst Switch?

Answer 1

1. 1600Mbps

Question 2

What are some methods for distributing traffic over an EtherChannel?

Answer 2

1. Source MAC
2. Destination MAC
3. Source IP
4. Destination IP
5. TCP/UDP ports

Question 3

What type of interface represents an Etherchannel as a whole?

Answer 3

PortChannel

Question 4

How can the EtherChannel load-balancing be set?

Answer 4

TBD

Question 5

What logical operation is performed to calculate Etherchannel load balancing as a function of two addresses?

Answer 5

XOR

Question 6

What are the two different methods of forming Etherchannels?

Answer 6

1. LACP

2. PAgP

Question 7

When is PAgP’s “desirable silent” mode useful?

Answer 7

???

Question 8

What command can be used to see the status of an Etherchannel’s link?

Answer 8

“show etherchannel summary”

Question 9

Define Etherchannel

Answer 9

Allows you to bundle multiple physical links into one logical link for combined capacity

Question 10

Define PAgP

Answer 10

1. Port Aggregation Protocol

2. Cisco proprietary

Question 11

Define LACP

Answer 11

1. Link Aggregation Control Protocol

2. Industry Standard 802.3ad