7705 SAR Interfaces
7705 SAR OS Interface Configuration Guide Page 89
Ethernet Port Commands
ethernet
Syntax ethernet
Context config>port
Description This command enables access to the context to configure Ethernet port attributes on an
8-port Ethernet Adapter card.
autonegotiate
Syntax autonegotiate [limited]
[no] autonegotiate
Context config>port>ethernet
Description This command enables speed autonegotiation and duplex autonegotiation on Ethernet
10/100BASE-T RJ-45 ports.
The command enables speed autonegotiation on the two SFP ports (10, 100, or 1000 Mb/s). Duplex
autonegotiation is only supported on SFP ports using 100 Mb/s fiber SFPs or 10/100/1000BASE-T
copper SFPs. Duplex autonegotiation is not supported for Gigabit Ethernet SFPs; the mode is always
full duplex.
Speed autonegotiation takes place automatically — all ports are configured for speed autonegotiation
by default. Speed autonegotiation might need to be disabled (for example, if a port must be forced to
a certain speed or to avoid speed negotiation loops between the Ethernet Adapter card and other
devices). To turn off speed autonegotiation for a port, the user configures the port speed manually.
When autonegotiation is disabled on a port, the port does not attempt to autonegotiate and will only
operate at the speed and duplex settings configured for the port.
If the autonegotiate limited keyword option is specified, the port will autonegotiate but will only
advertise a specific speed and duplex mode. The speed and duplex mode advertised are the settings
configured for the port. One use for limited mode is for multispeed gigabit ports to force gigabit
operation while keeping autonegotiation enabled for compliance with IEEE 801.3.
The no form of this command disables autonegotiation on this port.
Default autonegotiate
Note: Disabling autonegotiation on Gigabit Ethernet ports is not allowed, as the IEEE 802.3
specification for Gigabit Ethernet requires that autonegotiation be enabled for far-end fault
indication.
To Next Page
Loading...
