Quick Answer: What Is Compared To The Mac Address Table By A Similar To Make Forwarding Filtering Decision?

What is a MAC address table?

The MAC address table is a way to map each port to a MAC address. This makes it efficient to forward traffic directly to a host. Without the MAC address table, traffic would be forwarded out each port, like a hub (hopefully you haven’t used one of those in a long time.)

What will a switch compare in its MAC table to be able to forward a frame?

To forward the frame, the switch examines the destination MAC address and compares it to addresses found in the MAC address table. If the address is in the table, the frame is forwarded out the port associated with the MAC address in the table.

What is forward filter decision?

Forward/filter decisions When a frame is received on an interface, the switch looks at the destination MAC address and finds the exit interface in the MAC table. The frame is only forwarded out the specified destination port.

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Which device makes decisions based on the MAC address table?

What are Switches? Switches are layer 2 devices because they make decisions based on the physical address (also known as the MAC address – Media Access Control). In the OSI stack, this layer is also known as the Data Link Layer.

What is difference between ARP table and MAC table?

2 Answers. The MAC table is used by the switch to map MAC Addresses to a specific interface on the switch. The ARP table is used to map MAC Addresses to IP addresses. If no ARP entry exists, an ARP broadcast is sent out, and the table is updated with the response.

Do routers have MAC address tables?

Does a router maintain a MAC table like a switch? A router is a Layer 3 (Network Layer) device so technically it doesn’t have to concern itself with MAC addresses to operate and fulfill it’s function.

What does a switch do if a MAC address Cannot be found in the CAM table?

What does a switch do if a MAC address cannot be found in the CAM table? The switch generates an ARP request for the address. The switch floods the frame out all ports (except the receiving port).

What happens when a destination MAC address is not in the table?

If the destination MAC address is not in the table, the switch forwards the frame out all ports except the incoming port. If the destination MAC address is a broadcast or a multicast address, the frame is flooded out all ports except the incoming port.

Which information does a switch use to fill the MAC address table?

Explanation: To maintain the MAC address table, the switch uses the source MAC address of the incoming packets and the port that the packets enter. The destination address is used to select the outgoing port.

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What is the difference between CAM and MAC table?

When performing a MAC address table lookup, the MAC address itself is the content being queried. For any matching results, CAM will return the destination port (the associated content). Cisco uses the terms MAC address table and CAM table interchangeably.

What is stored in a Cisco device MAC address table?

Managing the MAC Address Table. The MAC address table contains address information that the switch uses to forward traffic between ports. All MAC addresses in the address table are associated with one or more ports.

Which table displays the MAC addresses that are learned on a switch?

The switch stores the learned MAC addresses in a table that is known as the CAM table.

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