HP 6125XLG R2306-HP 6125XLG Blade Switch Layer 2 - LAN Switching Command Refer - Page 63

Predefined user roles network-admin Parameters high: Assigns high MAC learning priority. low: Assigns low MAC learning priority. Usage guidelines The MAC address learning priority values can be high and low. An interface with high MAC address learning priority can learn any MAC address. An interface with low MAC address learning priority can learn only the MAC addresses that have not been learned by the high-priority interfaces. The MAC learning priority mechanism can help defend your network against MAC address spoofing attacks. You can assign an uplink interface high MAC learning priority and a downlink interface low MAC learning priority to prevent the downlink interface from learning the MAC address of an upper layer device (for example, the gateway). Examples # Assign high MAC learning priority to interface Ten-GigabitEthernet 1/0/1. system-view [Sysname] interface ten-gigabitethernet 1/0/1 [Sysname- Ten-GigabitEthernet1/0/1] mac-address mac-learning priority high # Assign high MAC learning priority to interface Bridge-Aggregation 1. system-view [Sysname] interface bridge-aggregation 1 [Sysname-Bridge-Aggregation1] mac-address mac-learning priority high # Assign high MAC learning priority to interface S-Channel 1/0/1:10. system-view [Sysname] interface s-channel 1/0/1:10 [Sysname-S-Channel1/0/1:10] mac-address mac-learning priority high mac-address mac-roaming enable Use mac-address mac-roaming enable to enable MAC address synchronization. Use undo mac-address mac-roaming enable to restore the default. Syntax mac-address mac-roaming enable undo mac-address mac-roaming enable Default MAC address synchronization is disabled. Views System view Predefined user roles network-admin 56