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000-221 · Question #175

Which of the following is a requirement for EtherChannel using HEA ports?

The correct answer is C. When using HEA logical ports as primary adapters in an EtherChannel, the underlying physical ports. When HEA logical ports are used as primary adapters in an AIX EtherChannel, the underlying physical HEA ports must all be configured at the same speed.

Networking

Question

Which of the following is a requirement for EtherChannel using HEA ports?

Options

  • ADedicated HEA ports are supported as primary adapters when they are configured at different speeds
  • BHEA logical ports can only be used as a backup adapter when the physical ports are configured as primary
  • CWhen using HEA logical ports as primary adapters in an EtherChannel, the underlying physical ports
  • DThe 'Internet Address to Ping' attribute must be enabled for logical HEA ports when the EtherChannel

How the community answered

(68 responses)
  • A
    4% (3)
  • B
    6% (4)
  • C
    74% (50)
  • D
    16% (11)

Why each option

When HEA logical ports are used as primary adapters in an AIX EtherChannel, the underlying physical HEA ports must all be configured at the same speed.

ADedicated HEA ports are supported as primary adapters when they are configured at different speeds

This is incorrect because dedicated HEA ports used as primary adapters must be at the same speed, not different speeds - the opposite of what IBM supports in this configuration.

BHEA logical ports can only be used as a backup adapter when the physical ports are configured as primary

HEA logical ports are not restricted to backup adapter roles only; they can be configured as primary adapters in an EtherChannel, making this stated restriction inaccurate.

CWhen using HEA logical ports as primary adapters in an EtherChannel, the underlying physical portsCorrect

IBM requires that when HEA logical ports serve as primary adapters in an EtherChannel, the underlying physical HEA ports must be configured at the same speed to ensure consistent link aggregation behavior. Mixed port speeds on the underlying physical ports are not supported in this role and can cause unpredictable failover or load-balancing results.

DThe 'Internet Address to Ping' attribute must be enabled for logical HEA ports when the EtherChannel

The 'Internet Address to Ping' attribute is relevant to backup adapter failover detection in EtherChannel but is not a blanket requirement for all EtherChannel configurations using HEA logical ports.

Concept tested: EtherChannel requirements for HEA logical ports as primary adapters

Source: https://www.ibm.com/docs/en/aix/7.3?topic=channel-hea-ports-etherchannel

Topics

#EtherChannel#HEA#logical ports#physical ports

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