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Routing > Module 6 > Flashcards

Module 6 Flashcards

1
Q

What is EtherChannel?

A

A link aggregation technology that allows multiple physical Ethernet links to be grouped into one single logical link.

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2
Q

What are the benefits of using EtherChannel?

A
  • Fault-tolerance
  • Load sharing
  • Increased bandwidth
  • Redundancy
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3
Q

What is a port channel in the context of EtherChannel?

A

The resulting virtual interface created when an EtherChannel is configured.

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4
Q

Which protocols can be used to form EtherChannels?

A
  • Port Aggregation Protocol (PAgP)
  • Link Aggregation Control Protocol (LACP)
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5
Q

What does LACP stand for?

A

Link Aggregation Control Protocol

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6
Q

What does PAgP stand for?

A

Port Aggregation Protocol

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7
Q

What is the function of LACP?

A

To negotiate an automatic bundle of ports by sending LACP packets to the other switch.

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8
Q

Which LACP modes exist?

A
  • On
  • Active
  • Passive
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9
Q

Which PAgP modes exist?

A
  • On
  • Desirable
  • Auto
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10
Q

True or False: All Ethernet interfaces must support EtherChannel.

A

True

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11
Q

What must be configured the same for all interfaces in an EtherChannel?

A
  • Speed
  • Duplex mode
  • VLAN assignment
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12
Q

What command displays the general status of the port channel interface?

A

show interfaces port-channel

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13
Q

Fill in the blank: An EtherChannel supports the same allowed range of VLANs on all the interfaces in a _______.

A

[trunking EtherChannel]

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14
Q

What happens if the allowed range of VLANs is not the same across EtherChannel interfaces?

A

The interfaces do not form an EtherChannel.

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15
Q

What is the maximum number of ports that can be included in a single EtherChannel?

A

Up to eight compatibly-configured Ethernet ports.

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16
Q

True or False: An EtherChannel can consist of mixed interface types.

A

False

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17
Q

What is a common issue with EtherChannel configurations?

A

Assigned ports in the EtherChannel are not part of the same VLAN.

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18
Q

What is the effect of STP on EtherChannel?

A

STP may block one of the bundles to prevent switching loops.

19
Q

What command should be used to verify that EtherChannel is operational?

A

show etherchannel summary

20
Q

What command allows you to view detailed output of a port channel configuration?

A

show run | begin interface port-channel

21
Q

What does the PAgP desirable mode do?

A

It initiates negotiations with other interfaces by sending PAgP packets.

22
Q

What is the role of PAgP in EtherChannel?

A

To help create the EtherChannel link by ensuring configurations are compatible.

23
Q

What is the primary purpose of EtherChannel?

A

To increase bandwidth and redundancy between devices.

24
Q

What should be ensured when configuring trunking on EtherChannel?

A

Verify the trunking mode on all ports that make up the EtherChannel.

25
Q

What is the maximum bandwidth provided by Fast EtherChannel?

A

800 Mbps

26
Q

What is the maximum bandwidth provided by Gigabit EtherChannel?

A

8 Gbps

27
Q

What command displays information about a specific port channel interface?

A

show etherchannel port-channel

28
Q

What is EtherChannel?

A

A link aggregation technology that groups multiple physical Ethernet links into one logical link.

29
Q

What is the primary purpose of EtherChannel?

A

To provide fault-tolerance, load sharing, increased bandwidth, and redundancy between devices.

30
Q

What is a port channel?

A

The resulting virtual interface when an EtherChannel is configured.

31
Q

True or False: EtherChannel technology was originally developed by Cisco.

A

True

32
Q

List the commands used to verify an EtherChannel configuration.

A
  • show interfaces port-channel
  • show etherchannel summary
  • show etherchannel port-channel
  • show interfaces etherchannel
33
Q

What are common issues that can prevent an EtherChannel from forming?

A
  • Assigned ports not in the same VLAN
  • Different native VLANs
  • Inconsistent trunking configurations
  • Different allowed VLAN ranges
  • Incompatible PAgP and LACP configurations
34
Q

Fill in the blank: EtherChannel provides _______ because the overall link is seen as one logical connection.

A

redundancy

35
Q

What is the function of Spanning Tree Protocol (STP) in relation to EtherChannel?

A

To block redundant links to prevent switching loops.

36
Q

What are the two dynamic negotiation protocols used in EtherChannel?

A
  • Port Aggregation Protocol (PAgP)
  • Link Aggregation Control Protocol (LACP)
37
Q

What is a key feature of the EtherChannel operation?

A

It allows multiple links to be connected without being blocked by STP.

38
Q

What is the difference between PAgP and LACP in terms of interface bundling?

A

LACP supports more interfaces bundled into a group compared to PAgP.

39
Q

True or False: Configuration changes for EtherChannel must be made under the physical interfaces.

A

False

40
Q

What is the purpose of Check Your Understanding (CYU) activities?

A

To help learners gauge their understanding of the content.

41
Q

What is the recommended activity type for configuring EtherChannel?

A

Syntax Checker

42
Q

What is the significance of the command ‘channel-group X mode [desirable | auto | active | passive]’?

A

It configures the mode for the EtherChannel group.

43
Q

Fill in the blank: The __________ is a simulation and modeling activity designed to explore skills.

A

PT Activity

Routing (19 decks)

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