Alcatel-Lucent OmniSwitch 10K - Page 30

OmniSwitch OS6860/OS6900/OS10K Troubleshooting Guide Part No.032996-00 Rev.A
AOS Release 7.X and 8.X January 2015
Alcatel-Lucent Page 30 of 148
------------+------------+-------------------+------------+------------
VLAN 0 0 0 2841
VPLS 0 0 0 0
SPB 0 0 0 0
EVB 0 0 0 0
Total MAC Address In Use = 2841
If the MAC address table size is large, then use the additional options for looking at the specific MAC address
in question.
The mac-address key-word can be used to search for the exact MAC address in question.
Note: There are scenarios when the same MAC address will be learned on different VLANs. This is most
common when you have two switches connected together with multiple VLANs configured between them.
-> show mac-learning mac-address e8:e7:32:00:ef:a2
Legend: Mac Address: * = address not valid,
Mac Address: & = duplicate static address,
Domain Vlan/SrvcId/ISId Mac Address Type Operation Interface
-----------+---------------------+-------------------+---------------+------------+----------
VLAN 1 e8:e7:32:00:ef:a2 dynamic bridging 2/1/7
VLAN 10 e8:e7:32:00:ef:a2 dynamic bridging 2/1/7
VLAN 20 e8:e7:32:00:ef:a2 dynamic bridging 2/1/7
VLAN 30 e8:e7:32:00:ef:a2 dynamic bridging 2/1/7
Total number of Valid MAC addresses above = 4
The port or linkagg option can also be used to see the mac-addresses learned on a port or linkagg.
-> show mac-learning port 2/1/7
Legend: Mac Address: * = address not valid,
Mac Address: & = duplicate static address,
Domain Vlan/SrvcId/ISId Mac Address Type Operation Interface
-----------+---------------------+-------------------+---------------+------------+----------
VLAN 1 e8:e7:32:00:ef:a2 dynamic bridging 2/1/7
VLAN 10 e8:e7:32:00:ef:a2 dynamic bridging 2/1/7
VLAN 20 e8:e7:32:00:ef:a2 dynamic bridging 2/1/7
VLAN 30 e8:e7:32:00:ef:a2 dynamic bridging 2/1/7
Total number of Valid MAC addresses above = 4
Configuring MAC Address Table Aging Time
Source learning also tracks MAC address age and removes addresses from the MAC address table that have
aged beyond the aging timer value. When a device stops sending packets, source learning keeps track of how
much time has passed since the last packet was received on the switch port of the device. When this amount of
time exceeds the aging time value, the MAC is aged out of the MAC address table. Source learning always
starts tracking MAC address age from the time since the last packet was received.
By default the MAC address aging time is set to 300 seconds. This can be viewed:
6860-> show mac-learning aging-time
Mac Address Aging Time (seconds) = 300
This can be changed using the command:
6860-> mac-learning aging-time 500
6860-> show mac-learning aging-time
Mac Address Aging Time (seconds) = 500