Speed Auto - HP 6125G Command Reference Manual

For an Ethernet copper port, use the speed command to set its speed to match the speed of the peer
interface.
For a fiber port, use the speed command to set its speed to match the rate of a pluggable transceiver.
Related commands: duplex and speed auto.
Examples
# Configure GigabitEthernet 1/0/1 to operate at 100 Mbps.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] speed 100

speed auto

Syntax
speed auto { 10 | 100 | 1000 } *
undo speed
View
GE interface view
Default level
2: System level
Parameters
10: Sets 10 Mbps as an option for speed auto negotiation.
100: Sets 100 Mbps as an option for speed auto negotiation.
1000: Sets 1000 Mbps as an option for speed auto negotiation.
Description
Use speed auto to set options for speed auto negotiation.
Use undo speed to restore the default.
By default, an Ethernet interface automatically negotiates a speed with the peer.
The speed command and the speed auto command supersede each other. The command that is
configured last takes effect.
If you configure speed 100 after configuring speed auto 100 1000 on an interface, the interface speed
is set to 100 Mbps by force without negotiation. If you configure speed auto 100 1000 after configuring
speed 100 on the interface, the interface negotiates with its peer, and the negotiated speed is either 100
Mbps or 1000 Mbps.
To avoid negotiation failure, make sure that at least one speed option is supported at both ends.
NOTE:
This command is available on only external copper GE ports that support speed auto negotiation.
Examples
# Configure the port GigabitEthernet 1/0/1 to use 10 Mbps and 1000 Mbps for speed negotiation.
<Sysname> system-view
32