#Show mac address table cisco series
Gigabit Ethernet ports on the Catalyst 6500 series switches and on the Cisco 7600 series routers use flow control to inhibit the transmission of packets to the port for a period of time other Ethernet ports use flow control to respond to flow-control requests. Pause frames are special packets that signal a source to stop sending frames for a specific period of time because the buffers are full. The send and desired keywords are supported on Gigabit Ethernet ports only. Router# clear mac-address-table dynamic interface abc protocol ipx
#Show mac address table cisco how to
This example shows how to clear all dynamic Layer 2 entries for a specific interface (abc) and protocol type (IPX): Router# clear mac-address-table permanent address 0040.C80A.2F07 interface ethernet 0/1Ĭlearing a Dynamic Address on a 7600 using a Supervisor Engine 2 The following example shows the permanent address 0040.C80A.2F07 being cleared on Ethernet port 1: Router# clear mac-address-table notification mac-move counter 202
The following example shows how to clear the MAC-move notification counters on a specific VLAN: Router# clear mac-address-table static address 0040.C80A.2F07 interface ethernet 0/1 The following example shows how to clear the static address 0040.C80A.2F07 on Ethernet port 1: The following example shows how to clear all dynamic addresses in the MAC forwarding table: For example, if you specify a Gigabit Ethernet interface and have a 48-port 10/100BASE-T Ethernet module that is installed in a 13-slot chassis, valid values for the module number are from 1 to 13 and valid values for the port number are from 1 to 48. Interface-number depend on the specified interface type and the chassis and module that are used. Interface-number argument designates the module and port number. Other} keywords are supported on Cisco 7600 series routers that are configured with a Supervisor Engine 2 only.Ĭlear mac-address-table dynamic command to remove all dynamic entries from the table. Pos keywords that are supported on Cisco 7600 series routers that are configured with a Supervisor Engine 2. If a targeted address is not present in the MAC forwarding table, the following error message appears: If you specify an interface but do not specify an address, all addresses on the specified interface are removed. If you specify an address but do not specify an interface, the address is deleted from all interfaces.
If you specify an interface but do not specify an address, all addresses on the specified interface are removed.Ĭlear mac-address-table command is invoked with no options, all dynamic addresses are removed. Using Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series RoutersĬlear mac-address-table command is invoked with no options, all MAC addresses are removed. Port interface number ranging from 1 to 28: Port interface number ranges based on type of Ethernet switch network module used: (Optional) Specifies the VLAN ID valid values are from 1 to 4094.Ĭisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers: (Optional) Specifies the protocol types (other than IP or IPX) of the entries to clear. (Optional) Specifies the protocol type of the entries to clear. (Optional) Specifies the assigned protocol accounts for such protocols such as DECnet, Banyan VINES, and AppleTalk. (Optional) Specifies the VLAN to clear the MAC-move notification counters. The see the “Usage Guidelines” section for valid values.Ĭlears the MAC-move notification counters. (Optional) Interface type: ethernet, fastethernet, fddi, atm, or port channel. (Optional) Clears all addresses for an interface. (Optional) Clears only a specified address. (Optional) Clears only permanent addresses. (Optional) Clears only restricted static addresses. If you want to configure static MAC address on a Cisco switch, then below are the command.(Optional) Clears only dynamic addresses. To change, use below command- Cisco-SW(config)#mac address-table aging-time ?Ĭisco-SW(config)#mac address-table aging-time 500 ? You can check using “ show mac address-table aging-time” command and change it as per your requirement. There is another important thing you need to know to manage mac address table, which is aging time. Total Mac Addresses for this criterion: 4 If you want to check mac address for a particular port number, then you can use “ show mac address-table interface ” Cisco-SW#show mac address-table vlan 1 Total Mac Addresses for this criterion: 1 Cisco-SW#show mac address-table address 0050.7966.6800 If you know the specific mac address, then you can use below command to check mac address entry for that address using “ show mac address-table address “. First of all checking the mac address table by using “ show mac address-table“. To manage mac address table, we need to know a couple of commands in Cisco Catalyst switches.
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