000-221 · Question #125
In the following figure, what TWO things must be done before an EtherChannel can be created from the ent0 and ent1 adapters?
The correct answer is B. EtherChannel support capability must be verified for the Ethernet switch. C. The IP configuration must be removed from en0. Creating an AIX EtherChannel requires the connecting switch to support 802.3ad/LACP and requires removing any existing IP configuration from the physical member adapters before they can join the aggregation.
Question
In the following figure, what TWO things must be done before an EtherChannel can be created from the ent0 and ent1 adapters?
Exhibit
Options
- AThe ent0 and ent1 adapters must be connected to different switches to provide both additional bandwidth
- BEtherChannel support capability must be verified for the Ethernet switch.
- CThe IP configuration must be removed from en0.
- DThe AIX host must be completely disconnected from the network,
- EThe en1 interface must be configured with IP information.
How the community answered
(35 responses)- A17% (6)
- B71% (25)
- D9% (3)
- E3% (1)
Why each option
Creating an AIX EtherChannel requires the connecting switch to support 802.3ad/LACP and requires removing any existing IP configuration from the physical member adapters before they can join the aggregation.
EtherChannel member adapters must connect to the same switch or switch stack, not different switches; connecting to different switches breaks LACP negotiation and defeats the purpose of link aggregation.
EtherChannel with IEEE 802.3ad Link Aggregation Control Protocol requires the Ethernet switch to support LACP or static aggregation; without switch-side support the aggregation cannot be negotiated and the channel will not function correctly.
A physical adapter designated as an EtherChannel member must not carry an IP address at the interface level - the IP configuration belongs on the EtherChannel interface itself, so en0's IP must be removed before ent0 can be added as a member.
Completely disconnecting the host from the network is unnecessary; only the specific adapters being aggregated need configuration changes, and other adapters can remain active.
Member adapters must have IP configuration removed, not added; assigning IP information to en1 would disqualify ent1 from joining the EtherChannel.
Concept tested: AIX EtherChannel prerequisites before adapter aggregation
Source: https://www.ibm.com/docs/en/aix/7.3?topic=management-etherchannel-ieee-8023ad-link-aggregation
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