Configuring An Auto-Negotiation Transmission Rate - 3Com 4500G Family Configuration Manual

Similarly, if you configure the transmission rate for an Ethernet port by using the speed command with
the auto keyword specified, the transmission rate is determined through auto-negotiation too. For a
Gigabit Ethernet port, you can specify the transmission rate by its auto-negotiation capacity. For details,
refer to

Configuring an Auto-negotiation Transmission Rate.

Follow these steps to configure an Ethernet port:
To do...
Enter system view
Enter Ethernet port
view
Set the description
string
Set the duplex mode
Set the transmission
rate
Shut down the
Ethernet port
10-Gigabit Ethernet ports do not support the duplex command or the speed command.
Configuring an Auto-negotiation Transmission Rate
Usually, the transmission rate on an Ethernet port is determined through negotiation with the peer end,
which can be any rate within the capacity range. With auto-negotiation rate configured, you can enable
the Ethernet port to negotiate only part of the transmission rates within its capacity.
Use the command...
system-view
interface interface-type
interface-number
description text
duplex { auto | full | half }
speed { 10 | 100 | 1000 | auto }
shutdown
1-2
Remarks
—
—
Optional
By default, the description of a port is the
port name followed by the "Interface"
string, GigabitEthernet1/0/1 Interface
for example.
Optional
auto by default.
The optical port of an SFP port and the
electrical port of an Ethernet port whose
port rate is configured as 1000 Mbps do
not support the half keyword.
Optional
The optical port of an SFP port does not
support the 10 or 100 keyword.
By default, the port speed is in the
auto-negotiation mode.
Optional
By default, an Ethernet port is in up state.
To bring up an Ethernet port, use the
undo shutdown command.