Dell PowerEdge 1955 Guide De Configuration page 26

Table 1-6. Uplink or External Ports on Gb Ethernet Passthrough Module (PHY Module)
Gb Ethernet
Passthrough 1
1/1
1/2
1/3
1/4
1/5
1/6
1/7
1/8
1/9
1/10
NOTE:
The switch module sets the six uplink ports in autonegotiation mode by default. When both link
partners are in autonegotiation mode, you can use either straight-through or crossover cables to
connect the network switch module to external network devices, such as switches, routers, or NICs.
When the uplink ports of the external network device is configured in forced mode (for example,
100 Mbps full-duplex or 1000 Mbps full-duplex), configure the uplink ports of the switch module
in the same mode.
For cabling, MDI ports connect to MDIX ports using straight-through twisted pair cabling; both
MDI-to-MDI and MDIX-to-MDIX connections use crossover twisted pair cabling.
Configuring a Port on a Dell PowerConnect 5316M Ethernet Switch Module
The following is an example of how to configure a port designated as "g11" to operate at 100 Mbps
using CLI commands:
console(config)# interface ethernet g11
console(config-if)# no negotiation
console(config-if)# speed 100
The following is an example of how to configure a port to operate at half duplex using CLI
commands (port g11 is used for example only):
console(config)# interface ethernet g11
console(config-if)# no negotiation
console(config-if)# duplex half
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General System Configuration
Gb Ethernet
Passthrough 2
1/1
1/2
1/3
1/4
1/5
1/6
1/7
1/8
1/9
1/10
The 1/x indicates the port number x under the CLI.