so a switch keeps track off wot for ip's / mac adresses are linked to a port. So it will lead to a faster network because not all the packets arive by all computers, only the one's who supposted to get them.
Does it do this bij arp? just link is a normal computer?
if so, can ya manual change those arp entries? Is this router specific?
Most switches only operate at the data link layer so they are only aware of "MAC" addresses, routers are the devices that bind IP addresses to the interfaces. And to answer your question, yes you can create a static MAC table for a switch. Now I may be wrong, but Im not sure that layer 2 switches use the ARP protocol, but then again I could be wrong... :roll:
ARP itself is a layer 3 protocol working directly on top of data link layer to find out the IP address of a known hardware address. The ARP table contains a mapping between the layer 3 [IP] address and layer 2 [MAC] ddress. So obviously layer 2 switches do not use ARP broadcasts. And these switches do not maintain an ARP table. They only maintain a forwarding table containing MAC addresses and port nos. If an unknown hardware address is found as the destination of a frame, the switch will do a layer 2 broadcast of that packet - this is called flooding.