User guide

4-4 E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
C
ONFIGURING
B
LACK
D
IAMOND AND
A
LPINE
S
WITCH
S
LOTS AND
P
ORTS
10BASE-T and 100BASE-TX ports can connect to either 10BASE-T or 100BASE-T
networks. By default, the ports autonegotiate port speed. You can also configure each
port for a particular speed (either 10 Mbps or 100 Mbps).
Gigabit Ethernet ports are statically set to 1 Gbps, and their speed cannot be modified.
To configure port speed and duplex setting, use the following command:
config ports <portlist> auto off {speed [10 | 100 | 1000]} duplex [half
| full]
To configure the system to autonegotiate, use the following command:
config ports <portlist> auto on
Flow control is supported only on Gigabit Ethernet ports. It is enabled or disabled as
part of autonegotiation.
T
URNING OFF AUTONEGOTIATION FOR A GIGABIT ETHERNET PORT
In certain interoperability situations, you may need to turn autonegotiation off on a
Gigabit Ethernet port. Even though a Gigabit Ethernet port runs only at full duplex, you
must specify the duplex setting.
The following example turns autonegotiation off for port 1 on a G4X or G6X module
located in slot 1:
config ports 1:1 auto off duplex full
B
LACK
D
IAMOND AND
A
LPINE
S
WITCH
P
ORT
C
OMMANDS
Tab le 4-1 describes the BlackDiamond and Alpine switch port commands.
Table 4- 1: BlackDiamond and Alpine Switch Port Commands
Command Description
clear slot <slot> Clears a slot of a previously assigned module
type.
config jumbo-frame size <jumbo_frame_mtu> Configures the jumbo frame size. The range is
between 1523 and 9216, including 4 bytes of
CRC. The default setting is 9216.