The BCM5700, BCM5701, BCM5702, BCM5703 and BCM5704 also support jumbo
frames, which can be configured via the interface MTU setting. Selecting
an MTU larger than 1500 bytes with the ifconfig(8) utility configures the
adapter to receive and transmit jumbo frames. Using jumbo frames can
greatly improve performance for certain tasks, such as file transfers and
data streaming. The bge driver supports the following media types:
autoselect Enable autoselection of the media type and options. The
user can manually override the autoselected mode by adding
media options to rc.conf(5).
10baseT/UTP Set 10Mbps operation. The ifconfig(8) mediaopt option can
also be used to select either full-duplex or half-duplex
modes.
100baseTX Set 100Mbps (Fast Ethernet) operation. The ifconfig(8)
mediaopt option can also be used to select either
full-duplex or half-duplex modes.
1000baseTX Set 1000baseTX operation over twisted pair. Only
full-duplex mode is supported.
1000baseSX Set 1000Mbps (Gigabit Ethernet) operation. Both full-duplex
and half-duplex modes are supported.
The bge driver supports the following media options:
full-duplex Force full duplex operation.
half-duplex Force half duplex operation.
The bge driver also supports one special link option for 1000baseTX
cards:
link0 With 1000baseTX cards, establishing a link between two ports
requires that one port be configured as a master and the other a
slave. With autonegotiation, the master/slave settings will be
chosen automatically. However when manually selecting the link
state, it is necessary to force one side of the link to be a mas-
ter and the other a slave. The bge driver configures the ports as
slaves by default. Setting the link0 flag with ifconfig(8) will
set a port as a master instead.
Вариант для распечатки
(??) on 13-Мрт-11, 00:49 
