Draytek 2130 manual Ports, You can use the drop down list to choose the required speed for

4.1.2 Ports

Ports page is used to change the setting for WAN port. You can set or reset the following items. All of them are described in detail below.

Port	It displays current network interface.
Link	It displays current connection status. Green light means the
	WAN connection is successful.
Current	It displays current speed that the router uses.
Speed Configured	You can use the drop down list to choose the required speed for
	the router. If you have no idea in configuring speed, simple use
	the default setting, Auto.

Flow Control	If flow control is enabled by checking Configured box, both
	parties can send PAUSE frame to the transmitting device(s) if
	the receiving port is too busy to handle. If not, there will be no
	flow control in the port. It drops the packet if too much to
	handle.
	Current Rx: indicates whether pause frames on the port are
	obeyed.
	Current Tx: indicates whether pause frames on the port are
	transmitted.
Maximum Frame	This module offers 1518~9600 (Bytes) length to make the long
	packet for data transmission.

Excessive Collision Mode There are two modes for you to choose when excessive collision happened in half-duplex condition.

100 Vigor2130 Series User’s Guide