Digi TransPort WR11 User Manual page 184

Configuring network interfaces
Ethernet Hub group parameter to isolate specific ports to create separate hubs. For example,
if Ethernet 0 and Ethernet1 have their Group parameter set to 0 and Ethernet 2 and Ethernet
3 have their Group parameter set to 1, the router is configured as two 2-port hubs instead of
one 4-port hub. This means that traffic on physical ports LAN 0 and LAN 1 is not visible to
traffic on physical ports LAN 2 and LAN 3 (and vice versa). Group numbers can be 0-3 or use
255 for an interface to be in all groups. This parameter is not available on the web page when
the router is configured for Port Isolate mode.
Metric
The connected metric of an interface. Changing this value will alter the metric of dynamic
routes created automatically for this interface. The default metric of a connected interface is 1.
By allowing the interface to have a higher value (lower priority), static routes can take
preference to interface-generated dynamic routes. For normal operation, leave this value
unchanged.
MTU
The Maximum Transmit Unit for the specified interface. The default value is 0, meaning that
the MTU will either be 1504 (for routers using a Kendin Ethernet device) or 1500 (for non-
Kendin devices). The non-zero values must be greater than 128 and not more than the default
value. Values must also be multiples of 4 and the router will automatically adjust invalid values
entered by the user. For example, if the MTU is set to 1000, the largest IP packet that the
router will send is 1000 bytes.
Enable auto-negotiation
Allows the router and a connected Ethernet device to auto-negotiate the speed and duplex of
the Ethernet connection.
Speed (currently 100Base-T)
Select either of the 10Base-T, 100Base-T, or Auto modes. The currently selected mode is
shown in brackets after the parameter name. Enabling Auto-negotiation and manually setting
the speed allows only the selected speed to be negotiated.
Duplex
Select either of Full Duplex, Half Duplex or Auto mode. Enabling Auto-negotiation and
manually setting the Duplex will only allow the selected Duplex mode to be negotiated.
Max Rx rate
On models with multiple Ethernet interfaces, this parameter specifies a maximum data rate in
Kbps that the router receives on this interface. This may be useful in applications where
separate Ethernet interfaces are allocated to separate LANs and it is necessary to prioritize
traffic from one LAN over another.
Max Tx rate
On models with multiple Ethernet interfaces, this parameter specifies a maximum data rate in
kbps that the router will transmit on this interface. This may be useful in applications where
separate Ethernet interfaces are allocated to separate LANs and it is necessary to prioritize
traffic from one LAN over another.
Digi TransPort® Routers User Guide
Configure Ethernet interfaces
184