3com S7906E Instruccion De Instalación

 

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You may disable MAC address learning on a per-VLAN basis. 

Follow these steps to disable MAC address learning on a VLAN: 

Enter system view 

— 

Enable global MAC address 
learning 

Optional 

Enabled by default 

Enter VLAN view 

vlan vlan-id 

— 

Disable MAC address learning 
on the VLAN 

Required 

Enabled by default 

 

When global MAC address learning is disabled, the learned MAC addresses remain valid until they age 

out. 

 

The MAC address table on your device is available with an aging mechanism for dynamic entries. In this 

way, dynamic MAC address entries that are not updated within their aging time will be deleted to make 

room for new entries, and the MAC address table can be timely updated to accommodate the latest 

network changes.  

Set the aging timer appropriately: a long aging interval may cause the MAC address table to retain 

outdated entries, exhaust the MAC address table resources, and thus fail to update its entries to 

accommodate the latest network changes; a short interval may result in the removal of valid entries and 

hence unnecessary broadcasts, which may affect device performance. 

Follow these steps to configure the aging timer for dynamic MAC address entries: 

Enter system view 

— 

Configure the aging timer for 
dynamic MAC address entries 

mac-address timer { aging 
seconds | no-aging } 

Optional 

300 seconds by default.