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cisco:certification_topics:ccie-ei:1.1ai-managing_mac_table
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1.1ai Managing MAC table
- The MAC address type can either be static or dynamic.
- Show the VLAN, MAC address, Type, and Port.
sh mac address-table Mac Address Table ------------------------------------------- Vlan Mac Address Type Ports ---- ----------- -------- ----- All 0100.0ccc.cccc STATIC CPU 1 0011.321b.6374 DYNAMIC Po1 1 0060.2e01.b9ab DYNAMIC Gi1/0/22 6 e063.da86.8322 DYNAMIC Gi1/0/48 6 f099.bf03.2158 DYNAMIC Gi1/0/43 99 0040.9d43.3597 DYNAMIC Gi1/0/38 3 e063.da86.8322 DYNAMIC Gi1/0/48 4 e063.da86.8322 DYNAMIC Gi1/0/48 5 e063.da86.8322 DYNAMIC Gi1/0/48 97 e063.da86.8322 DYNAMIC Gi1/0/48 98 e063.da86.8322 DYNAMIC Gi1/0/48 971 e063.da86.8322 DYNAMIC Gi1/0/48 202 e063.da86.8322 DYNAMIC Gi1/0/48- STATIC means the MAC address was manually set either from the factory or user.
- DYNAMIC means the MAC address was learned dynamically.
- Determine the port a MAC address belongs to.
switch#show mac address-table address 588a.5af5.69da Mac Address Table ------------------------------------------- Vlan Mac Address Type Ports ---- ----------- -------- ----- 1611 588a.5af5.69da DYNAMIC Gi1/0/15
- Determine the MAC address for a port.
switch#show mac address-table interface gigabitEthernet 1/0/15 Mac Address Table ------------------------------------------- Vlan Mac Address Type Ports ---- ----------- -------- ----- 1611 588a.5af5.69da DYNAMIC Gi1/0/15
- A port may contain more than one MAC address.
switch#show mac address-table interface gigabitEthernet 1/0/48 Mac Address Table ------------------------------------------- Vlan Mac Address Type Ports ---- ----------- -------- ----- 1 e063.da86.8318 DYNAMIC Gi1/0/48 1 e063.da86.8322 DYNAMIC Gi1/0/48 6 e063.da86.8322 DYNAMIC Gi1/0/48 99 e063.da86.8322 DYNAMIC Gi1/0/48 3 e063.da86.8322 DYNAMIC Gi1/0/48 4 e063.da86.8322 DYNAMIC Gi1/0/48 5 e063.da86.8322 DYNAMIC Gi1/0/48 97 e063.da86.8322 DYNAMIC Gi1/0/48 98 e063.da86.8322 DYNAMIC Gi1/0/48 971 e063.da86.8322 DYNAMIC Gi1/0/48 202 e063.da86.8322 DYNAMIC Gi1/0/48 131 e063.da86.8322 DYNAMIC Gi1/0/48 7 e063.da86.8322 DYNAMIC Gi1/0/48 3939 e063.da86.8322 DYNAMIC Gi1/0/48 200 e063.da86.8322 DYNAMIC Gi1/0/48 201 e063.da86.8322 DYNAMIC Gi1/0/48 1612 e063.da86.8322 DYNAMIC Gi1/0/48 1613 e063.da86.8322 DYNAMIC Gi1/0/48 1614 e063.da86.8322 DYNAMIC Gi1/0/48 1615 e063.da86.8322 DYNAMIC Gi1/0/48 1611 e063.da86.8322 DYNAMIC Gi1/0/48 1610 e063.da86.8322 DYNAMIC Gi1/0/48 32 e063.da86.8322 DYNAMIC Gi1/0/48 Total Mac Addresses for this criterion: 23
- Filter results for only VLAN 202.
switch#show mac address-table interface gigabitEthernet 1/0/48 vlan 202 Mac Address Table ------------------------------------------- Vlan Mac Address Type Ports ---- ----------- -------- ----- 202 e063.da86.8322 DYNAMIC Gi1/0/48 Total Mac Addresses for this criterion: 1
- Other combinations include.
switch#show mac address-table ? address Address to lookup in the table aging-time MAC address table aging parameters count Number of MAC addresses in the table dynamic List dynamic MAC addresses interface List MAC adresses on a specific interface learning Display learning on VLAN or interface move MAC Move information multicast List multicast MAC addresses notification MAC notification parameters and history table secure List secure MAC addresses static List static MAC addresses vlan List MAC addresses on a specific vlan | Output modifiers <cr>
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