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rookie1010 · 11-22-2006, 11:55 AM

Hello

Are the ports on an ethernet card, physical software entities in the firmware on the NIC? would each port have a different ethernet controller?

if i am correct, does this mean that in packet forwarding, the packet data is forwarded from one software to another within the NIC card?
would such a device have four tcp/ip stacks (in case it is a 4 port ethernet)?

also from a transport layer perspective, can one forward a packet from tcp port 80 say to tcp port 81 on the same NIC card?

11-22-2006, 11:55 AM	#1 (permalink)
rookie1010 Master Techie Join Date: Mar 2004 Posts: 2,069	multi ports on the ethernet card Hello Are the ports on an ethernet card, physical software entities in the firmware on the NIC? would each port have a different ethernet controller? if i am correct, does this mean that in packet forwarding, the packet data is forwarded from one software to another within the NIC card? would such a device have four tcp/ip stacks (in case it is a 4 port ethernet)? also from a transport layer perspective, can one forward a packet from tcp port 80 say to tcp port 81 on the same NIC card?