MAC
Each switch maintains a MAC address table (MAC table for short). The MAC table records MAC addresses of all the devices connected to interfaces of the switch. When forwarding a data frame, the switch searches the MAC table for the outbound interface according to the destination MAC address of the frame. This reduces the number of broadcast frames.
- MAC Address Table
You can enter the search criteria to search entries in the MAC table.
- MAC Aging Time
The MAC table needs to be updated constantly because the network topology always changes. The entries automatically generated in a MAC table are not always valid. Each entry has a lifecycle. If an entry is not updated within the lifecycle, it is deleted. This lifecycle is called the aging time. If an entry is updated before its lifecycle ends, the aging timer of the entry is reset.
- MAC Learning
A switch can learn source MAC addresses of data frames. After learning the interface connected to the destination host, the switch sends data frames to the interface instead of broadcasting data frames to all interfaces in the VLAN.
- Static MAC Table
Static MAC entries are manually configured and never age.
- Blackhole MAC Table
Blackhole MAC entries are used to discard data frames with the specified source or destination MAC addresses. They are manually configured and never age.
- MAC Address Table Info
This section describes how to query parameters on the MAC Address Table Info page.
- Sticky MAC
You can configure the sticky MAC function on an interface.
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