In the weeks that followed, educational institutions worldwide closed brick and mortar classrooms and made a rapid transformation to online learning and remote content delivery. # Disable MAC address learning on interface Schannel-Aggregation 1:2.On Mathe World Health Organization (WHO) declared the novel coronavirus (COVID‐19) outbreak a global pandemic. # Disable MAC address learning on interface S-Channel 1/0/1:10. # Disable MAC address learning on interface Bridge-Aggregation 1. # Disable MAC address learning on interface Ten-GigabitEthernet 1/0/1. # Disable MAC address learning for VLAN 10. When MAC address learning is disabled, the device immediately deletes the existing dynamic MAC address entries. For information about S-channels, see EVB Configuration Guide.
For information about TRILL, see TRILL Configuration Guide. This command does not take effect in a TRILL network or for an S-channel. With MAC address learning enabled globally, you can disable MAC address learning for an interface or VLAN. For more information about broadcast storm suppression, see Layer 2-LAN Switching Configuration Guide. The device then stops learning MAC addresses and cannot dynamically update the MAC address table.īecause disabling MAC address learning can result in broadcast storms, enable broadcast storm suppression after you disable MAC address learning on an interface. If you disable MAC address learning globally, MAC address learning is disabled for all interfaces. You can disable MAC address learning on a per-interface basis. To avoid such attacks, you can disable MAC address learning by following these guidelines: To prevent the MAC address table from becoming saturated, you can disable MAC address learning.įor example, a number of packets with different source MAC addresses reaching a device can affect the MAC address table update.
S-channel interface view, S-channel aggregate interface view Layer 2 Ethernet interface view, Layer 2 aggregate interface view Undo mac-address mac-learning en able Default Use undo mac-address mac-learning enable to disable MAC address learning globally, on an interface, or on a VLAN. Use mac-address mac-learning enable to enable MAC address learning globally, on an interface, or on a VLAN.
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