System information

3-69
Address Table Commands
3
Command Usage
• The MAC Address Table contains the MAC addresses associated with each
interface. Note that the Type field may include the following types:
- Learned - Dynamic address entries
- Permanent - Static entry
- Delete-on-reset - Static entry to be deleted when system is reset
• The mask should be hexadecimal numbers (representing an equivalent bit
mask) in the form xx-xx-xx-xx-xx-xx that is applied to the specified MAC
address. Enter hexadecimal numbers, where an equivalent binary bit “0”
means to match a bit and “1” means to ignore a bit. For example, a mask of
00-00-00-00-00-00 means an exact match, and a mask of
FF-FF-FF-FF-FF-FF means “any.”
• The maximum number of address entries is 8191.
Example
clear mac-address-table dynamic
Use this command to remove any learned entries from the forwarding database and
to clear the transmit and receive counts for any static or system configured entries.
Default Setting
None
Command Mode
Privileged Exec
Example
mac-address-table aging-time
Use this command to set the aging time for entries in the address table. Use the no
form to restore the default aging time.
Syntax
mac-address-table aging-time seconds
seconds - Time in number of seconds (10-1000000).
Console#show mac-address-table
Interface Mac Address Vlan Type
--------- ----------------- ---- -----------------
Eth 1/ 1 00-E0-29-94-34-DE 1 Delete-on-reset
Console#
Console#clear mac-address-table dynamic
Console#