Why does a LACP bond send or receive traffic down only a single link?

Solution Verified - Updated -

Issue

  • When using a mode 4 (LACP) bond, why does traffic only travel down a single link of the bond, and does not spread across all links for both sending and receiving?

Environment

  • Red Hat Enterprise Linux, all versions
  • Link Aggregation Control Protocol (LACP or 802.3ad)

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