2.0 Network Access
EtherChannel Practice Questions
Link aggregation with PAgP and LACP.
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One solved question, so you can see how these are marked
What is the main purpose of configuring an EtherChannel between two switches?
To combine multiple physical links into one logical link for extra bandwidth and redundancy, while avoiding STP blocking a redundant path
STP treats a correctly formed Layer 2 EtherChannel as one logical link, rather than selecting among its individual members. STP can still block the whole port-channel where the wider topology requires it. Aggregate capacity does not give a single flow the sum of every member's bandwidth.
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