Reference Guide

Supported Releases 10.2.0E or later
Media Access Control
All Ethernet switching ports maintain media access control (MAC) address tables. Each physical device in your network contains a MAC
address. OS10 devices automatically enter learned MAC addresses as dynamic entries in the MAC address table.
Learned MAC address entries are subject to aging. Set the aging timer to zero (0) to disable MAC aging. For any dynamic entry, if no
packet arrives on the device with the MAC address as the source or destination address within the timer period, the address is removed
from the table.
1 Enter an aging time (in seconds) in CONFIGURATION mode (0 to 1000000, default 1800).
mac address-table aging-time seconds
2 Save the conguration.
do commit
Congure Aging Time
OS10(config)# mac address-table aging-time 900
OS10(config)# do commit
Disable Aging Time
OS10(config)# mac address-table aging-time 0
OS10(config)# do commit
Static MAC Address
A static MAC address entry is one that you manually congure. A static entry is not subject to aging.
1 Create a static MAC address entry in the MAC address table in CONFIGURATION mode.
mac-address-table static nn:nn:nn:nn:nn vlan vlan-id interface [ethernet node/slot/
port[:subport]
| port-channel channel-number]
2 Save the conguration.
do commit
Set Static MAC Address
OS10(config)# mac address-table static 34:17:eb:f2:ab:c6 vlan 10 interface ethernet 1/1/5
OS10(config)# do commit
MAC Address Table
OS10 maintains a list of MAC address table entries.
• View the contents of the MAC address table in EXEC mode.
show mac address-table {dynamic | static} [address mac-address | vlan vlan-id | interface
{ethernet node/slot/port[:subport] | port-channel number}] [count [vlan vlan-id] [interface
{type node/slot/port[:subport] | port-channel number}]
• dynamic — (Optional) Displays dynamic MAC address table entry information.
• static — (Optional) Displays static MAC address table entry information.
• address mac-address — (Optional) Displays MAC address information.
• interface ethernet node/slot/port[:subport] — (Optional) Displays a list of dynamic and static MAC address
entries.
Layer 2
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