ONTAP 9

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Modify MTU setting for interface group ports

To modify the MTU setting for interface groups, you must modify the MTU of the broadcast domain.

VLAN MTU size should match the broadcast domain MTU of the underlying interface groups and physical ports. If a different VLAN setting is needed for a VLAN, it must not exceed the size specified by the underlying broadcast domain.

Steps
  1. Modify the broadcast domain settings:

    broadcast-domain modify -broadcast-domain broadcast_domain_name -mtu mtu_setting

    The following warning message is displayed:

    Warning: Changing broadcast domain settings will cause a momentary data-serving interruption.
    Do you want to continue? {y|n}: y
  2. Enter y to continue.

  3. Verify that the MTU setting were modified correctly:

    network port show

network port show
(network port show)
Node: vsim-01
                                                              Ignore
                                         Speed(Mbps) Health   Health
Port IPspace Broadcast Domain  Link  MTU Admin/Oper  Status   Status
---- ------- ----------------  ---- ---- ----------- -------- ------
a0a  Default Default-1         up   1300 auto/1000   healthy  false
e0a  Default Default-1         up   1300 auto/1000   healthy  false
e0b  Default Default           up   1500 auto/1000   healthy  false
e0c  Default Default           up   1500 auto/1000   healthy  false
e0d  Default Default           up   1500 auto/1000   healthy  false
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