If the MAC address is not found in the CAM table, the switch adds the MAC address to the table and associates it with the port on which the frame was received. As frames arrive at the switch, the switch checks the source MAC address of the frame against the entries in the CAM table. The switch maintains a table called the Content Addressable Memory (CAM) table, which stores the MAC addresses and their associated port numbers. When a device is connected to a port on the switch, the switch learns the MAC address of the device by monitoring the source MAC address of the incoming frames. The dynamically-learned MAC address feature allows switches to learn the MAC addresses of devices that are connected to each port on the switch dynamically. In any case, a switch does not need an entry in its MAC address table to be able to get a frame to the destination it is just much more efficient to do it that way.Click on the arrows to vote for the correct answer A. This prevents dead hosts from using switch resources, and it facilitates moving a host from one interface to another on the same of different switch. What you want to do requires something connected to the server's switch interface to send a frame into the switches, but it will need to happen on a regular basis because entries in a switch MAC address tables are dynamic and time out. Switches will flood unknown unicast MAC addresses (those not in its MAC address table) to every switch interface A frame sent by Host2 will be delivered to the server, but it will do that by being sent to every switch interface, much like a broadcast or multicast frame. Based on your comments, you do not seem to understand that any frames sent to that MAC address will arrive on that switch interface, regardless of whether or not the switch has the MAC address in its MAC address table.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |