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Autonegotiation Configurations for 10/100 Ethernet Configuration NIC (Speed/Duplex)
Jul 05,2008 00:00
by
admin
Autonegotiation Configurations for 10/100 Ethernet
|
Configuration NIC (Speed/Duplex) |
Configuration Switch (Speed/Duplex) |
Resulting NIC Speed/Duplex |
Resulting Catalyst Speed/Duplex |
Comments |
|
AUTO |
AUTO |
100 Mbps, Full duplex |
100 Mbps, Full duplex |
Assuming maximum capability of Catalyst switch and NIC is 100 full duplex. |
|
100 Mbps, Full duplex |
AUTO |
100 Mbps, Full duplex |
100 Mbps, Half duplex |
Duplex mismatch. |
|
AUTO |
100 Mbps, Full duplex |
100 Mbps, Half duplex |
100 Mbps, Full duplex |
Duplex mismatch. |
|
100 Mbps, Full duplex |
100 Mbps, Full duplex |
100 Mbps, Full duplex |
100 Mbps, Full duplex |
Correct manual configuration. |
|
100 Mbps, Half duplex |
AUTO |
100 Mbps, Half duplex |
100 Mbps, Half duplex |
Link is established, but switch does not see any autonegotiation information from NIC and defaults to half duplex. |
|
10 Mbps, Half duplex |
AUTO |
10 Mbps, Half duplex |
10 Mbps, Half duplex |
Link is established, but switch will not see FLP and will default to 10 Mbps half duplex. |
|
10 Mbps, Half duplex |
100 Mbps, Half duplex |
No Link |
No Link |
Neither side will establish link because of speed mismatch. |
|
AUTO |
100 Mbps, Half duplex |
10 Mbps, Half duplex |
10 Mbps, Half duplex |
Link is established, but NIC will not see FLP and default to 10 Mbps half duplex. | |