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2.13.3. Frame Flooding

Switches flood frames in three situations:

  1. Unknown unicast: Destination MAC not in table
  2. Broadcast: Frame addressed to FFFF.FFFF.FFFF
  3. Multicast: Unless IGMP snooping is configured

Flooding sends the frame out all ports in the VLAN except the receiving port.

See how it connects
Alvin Varughese
Written byAlvin Varughese
Founder18 professional certifications