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What is the native VLAN in ONTAP 9?

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Applies to

ONTAP 9

Answer

  • In ONTAP, the native VLAN refers to the untagged port that allows traffic to pass without VLAN tags.
    • Any traffic sent by a switch without a VLAN tag will be placed on this port.
  • On a switch, the native VLAN is the designated VLAN for traffic that enters or exits without a VLAN tag.
    • Any untagged traffic sent by ONTAP will be placed on the switch's configured native VLAN
    • On most switches, the native VLAN defaults to VLAN 1
  • ONTAP's native VLAN consists of the untagged "base" ports that host VLANs
    • For instance, if ONTAP hosts VLAN 500 on a0a-500, then a0a serves as the native VLAN port. 
    • If ONTAP hosts VLAN 1203 on e0e-1203, then e0e functions as the native VLAN port.
  • Any untagged port could potentially be considered a "native VLAN" if it's connected to switchport configured for VLAN tagging
  • ::> network port show

Node: node1
Port      IPspace      Broadcast Domain Link MTU  Admin/Oper  Status
--------- ------------ ---------------- ---- ---- ----------- --------
a0a       Default      Native           up   1500     -/-     healthy <<<< Native VLAN
a0a-500   Default      Vlan500          up   1500     -/-     healthy <<<< VLAN tagged
e0e       Default      Native           up   1500  auto/10000 healthy <<<< Native VLAN
e0e-1203  Default      Vlan1203         up   1500     -/-     healthy <<<< VLAN tagged
e0f       Default      Default          up   1500  auto/10000 healthy <<<< May be native VLAN based on switch config 

 

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