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Interfaces and Subnets
40
• The yellow port LED is configured to show Transmit activity.
When you first create an
ethernet
object you will see that none of the attribute checkboxes are ticked, and
the defaults described above apply. Ensure that you set the
port
attribute value correctly to modify the port
you intended to.
The FB6000 configuration contains a number of port settings which are not possible and will not save, e.g.
10M and 100M modes. These are included for compatibility with FB2500 and FB2700 products. The FB6000
only operates at gigabit port speeds.
6.3.1. Setting duplex mode
If auto-negotiation is enabled, the FB6000 port will normally advertise that it is capable of either half- or full-
duplex operation modes - if you have reason to restrict the operation to either of these modes, you can set the
duplex
attribute to either
half
or
full
. This will cause the port to only advertise the specified mode - if
the (auto-negotiate capable) link-partner does not support that mode, the link will fail to establish.
If auto-negotiation is disabled, the
duplex
attribute simply sets the port's duplex mode.
Note
If you do not set the
autoneg
attribute (checkbox is unticked), and you set both port speed and
duplex mode to values other than
auto
, auto-negotiation will be disabled ; this behaviour is to reduce
the potential for duplex mis-match problems that can occur when connecting the FB6000 to some
vendors' (notably Cisco) equipment that has auto-negotation disabled by default.
6.3.2. Defining port LED functions
Each port has options to control the way the yellow and green LEDs are displayed based on the state of the
port. The default is yellow for Tx and green for link/activity.
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