Full-Duplex Communication You can select half-duplex or full-duplex communication. The advantage of using full-duplex is that communication packets can flow in both directions simultaneously, which results in doubling the throughput capacity on the segment.
Full-duplex communication eliminates the performance degradation resulting from packet collisions. Packets cannot collide because they each travel on their own path--like cars going in opposite directions on a two-lane highway. So while the effective bandwidth to a 10BaseT port configured for half-duplex Ethernet is a maximum of 10 Mbps, with full-duplex Ethernet it is doubled to 20 Mbps. http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3ks/3000/acopspcs.htm Catalyst 5000 Series Supervisor II engine ports on 10/100 ports on Fast EtherChannel-capable line cards enable high-speed connectivity between switches, switches and routers, and switches and servers. Up to four Fast Ethernet ports can be grouped to provide up to 800 Mbps of load-sharing, redundant, and point-to-point connections between the Catalyst 5500, 5509, 5505, 5002, and 5000 switches. To achieve higher bandwidth, Gigabit EtherChannel can be deployed, which supports up to 8 Gbps (full-duplex) of inter-switch bandwidth, and is supported across the Catalyst 5000 Family. http://www.cisco.com/univercd/cc/td/doc/pcat/ca5000.htm If I connect a server to a swtich full duplex then if only one client connected with its gig eth card, he can't use 2 gigs. I think they are writing these manuals incorrectly. Cause you can use 1 gig for sending 1 gig for receiving. Not 2 gigs sending and receiving. If you say to a customer that with gig ether channel they can reach up to 8 gigs on 6500 swithes he will obviously thinks that he can send 8 gig and receive 8 gig not 4 gig RX for gig TX. Best regards, Cisco Breaker Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47562&t=47562 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]