MAC

MAC View

Table 1 MAC View

Command	Purpose
show mac-address[{ethernet\|link-aggregation} interface_name\|all]	Display MAC address table.
clear mac-address [{ethernet\|link-aggregation} interface_name\|vlan vlan-id] {static\|dynamic\|all}	Clear MAC entries.
show mac-limit	Display MAC limit configuration.

show mac-address [{ethernet|link-aggregation} interface_name|all]

[Command]

show mac-address [{ethernet|link-aggregation} interface_name|all]

[Purpose]

Display MAC address table.

[Parameters]

Parameter	Description
interface_name	Interface name (eg.0/1)

[View]

Privileged User View

[Use Cases]

sonic# show mac-address
  No.    Vlan  MacAddress         Port       Type
-----  ------  -----------------  ---------  ---------
    1     100  E2:8C:56:85:4A:11  0/0        Static
Total number of entries 1
sonic# show mac-address all
  No.    Vlan  MacAddress         Port         Type
-----  ------  -----------------  -----------  -------
    1     200  AA:BB:CC:11:22:33  0/129        Dynamic
Total number of entries 1
+--------+-------------------+--------------+-------+--------+
|   VLAN | MAC               | RemoteVTEP   |   VNI | Type   |
+========+===================+==============+=======+========+
|    200 | 60:EB:5A:01:10:B1 | 10.193.2.102 |   200 | Static |
+--------+-------------------+--------------+-------+--------+

Total count : 1
Aging time for switch is 1800 seconds

clear mac-address [{ethernet|link-aggregation} interface_name|vlan vlan-id] {static|dynamic|all}

[Command]

clear mac-address [{ethernet|link-aggregation} interface_name|vlan vlan-id] {static|dynamic|all}

[Purpose]

Clear MAC entries.

[Parameters]

Parameter	Description
interface_name	Interface name (eg.0/1)
vlan-id	VLAN ID, the range is [1,4094].

[View]

Privileged User View

[Use Cases]

sonic# clear mac-address dynamic

show mac-limit

[Command]

show mac-limit

[Purpose]

Display MAC limit configuration.

[View]

Privileged User View

[Use Cases]

sonic# show mac-limit
Interface      Mac-limit
-----------  -----------
0/1                  100
0/2                  200

MAC Config

Table 2 MAC Config

Command	Purpose
mac-address static HH:HH:HH:HH:HH:HH vlan vlan-id {ethernet\|link-aggregation} interface_name	Configure a static MAC entry.
mac-address static HH:HH:HH:HH:HH:HH vlan vlan-id blackhole	Configure a blackhole MAC entry.
mac-address timer {aging aging-time\|no-aging}	Set MAC aging time.
mac-limit dynamic mac-limit-value	Set a limit to the number of dynamic MAC table entries.

mac-address static HH:HH:HH:HH:HH:HH vlan vlan-id {ethernet|link-aggregation} interface_name

[Command]

mac-address static HH:HH:HH:HH:HH:HH vlan vlan-id {ethernet|link-aggregation} interface_name

[Purpose]

Configure a static MAC entry.

[Parameters]

Parameter	Description
HH:HH:HH:HH:HH:HH	MAC address.
vlan-id	VLAN ID, the range is [1,4094].
interface_name	Interface name (eg.0/1)

[View]

Global Configuration View

[Notes]

Run command no mac-address static HH:HH:HH:HH:HH:HH vlan vlan-id to delete a static MAC entry.

[Use Cases]

sonic# configure terminal
sonic(config)# mac-address static aa:aa:aa:aa:aa:aa vlan 4 ethernet 0/4

mac-address static HH:HH:HH:HH:HH:HH vlan vlan-id blackhole

[Command]

mac-addressstatic HH:HH:HH:HH:HH:HH vlan vlan-id blackhole

[Purpose]

Configure a blackhole MAC entry.

[Parameters]

Parameter	Description
HH:HH:HH:HH:HH:HH	MAC address.
vlan-id	VLAN ID, the range is [1,4094].

[View]

Global Configuration View

[Notes]

Run command no mac-address static HH:HH:HH:HH:HH:HH vlan vlan-id to delete a blackhole MAC entry.

[Use Cases]

sonic# configure terminal
sonic(config)# mac-address  aa:bb:bb:bb:bb:bb vlan 5 blackhole

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

[Command]

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

[Purpose]

Set MAC aging time.

[Parameters]

Parameter	Description
aging-time	Specify the aging time in seconds, the default is 1800, and the range is from 30 to 7200.

[View]

Global Configuration View

[Notes]

MAC aging time is a parameter that affects MAC self-learning on the switch. Dynamic MAC entries will be automatically discarded after aging; and static MAC entries are not affected by MAC aging time. Run command mac-address timer no-aging to disable MAC aging.

[Use Cases]

sonic# configure terminal
sonic(config)# mac-address timer aging 3600
sonic(config)# mac-address timer no-aging

mac-limit dynamic mac-limit-value

[Command]

mac-limit dynamic mac-limit-value

[Purpose]

Set a limit to the number of dynamic MAC table entries.

[Parameters]

Parameter	Description
mac-limit-value	The range is from 1 to 131072.

[View]

VLAN Configuration View/Physical Interface Configuration View

[Notes]

Only CX308P-48Y-N-V2 and CX532P-N-V2 support this feature. Only VLAN or VLAN member ports are allowed to configure the MAC number limit. Run command no mac-limit dynamic to delete MAC limit configuration.

[Use Cases]

sonic# configure terminal
sonic(config)# interface ethernet 0/0
sonic(config-if-0/0)# mac-limit dynamic 1000
sonic(config-if-0/0)# exit
sonic(config)# vlan 30
sonic(config-vlan-30)# mac-limit dynamic 2000