DT Etherlink IV
User Manual
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4.6.5.61 <MTU> Command
This command sets the MTU size (Maximum Transmission Unit) for the port INT and is used just for
management. Standard is 1500. For all other interfaces MTU is 2048.
4.6.5.62 <WANIDLE [1/7E]> Command
This command sets the idle pattern for a WAN interface. Sometimes, when the unit transmits
Ethernet over E1, then an idle pattern of 1 is not convenient because the some E1 equipment will
detect a Loss of Signal. In this case, the change of the idle pattern to 7E can help.
4.6.5.63 <ETHSD [10H/10F/100H/100F/AUTO] [N=1..5]> Command
The <ETHSD [10H/10F/100H/100F/AUTO] [N=1..5]> command sets the operating mode of the
Ethernet port, where N is the number of the Ethernet port, 10/100 is the rate of 10 or 100 Mbit/s, F is
full duplex and H is half duplex.
The <ETHSD AUTO> command activates the rate and duplex auto detection.
CO_CM>ETHSD 10H 1
CO_CM>ETHSD AUTO 2
4.6.5.64 <FC [ON/OFF] [N1-4]> Command
This command enables and disables IEEE 802.3x flow control on LAN ports.
4.6.5.65 <IRATE [speed/OFF] [N1-4]> Command
The command IRATE is an abridgement of the Ingress Rate. It limits the incoming data stream that
reaches the internal Hardware Ethernet Switch. The IRATE can be set up for every LAN port
separately.
IRATE command counts all arriving traffic without discrimination between ingress VLAN numbers
and QoS settings. It means that IRATE command should be used when the LAN port is set to
ACCESS mode, so all traffic will be processed by the internal switch with selectable VLAN and QoS
settings. If incoming traffic has bigger bandwidth then selected by IRATE command, the excess will
be drop
ped if Flow Control is disabled on the port, or the switch will send so called “MAC Pause
Frame” if the Flow Control is enabled.
In general it is possible to use IRATE command if LAN port is set to TRUNK or to MIXED mode.
IRATE command will limit the whole incoming bandwidth without taking into account VLAN tags and
priorities inside incoming traffic. In that case a network will work without QoS support but with
bandwidth control.
IRATE [rate] [N]: Sets the desired rate limit.
IRATE OFF [N]: Disable rate limiting.
The parameter [rate] is expressed in kbits or Mbits, for example:
128 means 128 kbps
256k means 256 kbps
1M means 1000kbps