Using Additional 6900/8900 Platform Functionality
Platform Guide: 6900 and 8900 4 - 5
Status and settings for interfaces
You can configure the media type on an interface.
If you manually configure the platform to use specific speed and duplex
settings on interfaces, Auto MDI/MDIX functionality is turned off by default.
Additionally, when an interface is set manually, it functions as a data
terminal equipment (DTE) port. This means that crossover cables are
required to connect to other DTE devices (for example, servers), and
straight-through cables are required for connecting to data communications
equipment (DCE) devices (for example, switches or routers). Be sure to use
the correct cable type (straight-through or crossover) if you manually set
interface speed and duplex settings.
Setting the media type
All interfaces on the BIG-IP system default to auto-negotiate speed and
duplex settings. We recommend that you configure any network equipment
that you plan to use with the BIG-IP system to auto-negotiate speed and
duplex settings. F5 Networks strongly recommends you do not change the
default settings, but if you do connect the BIG-IP system to network devices
with forced speed and duplex settings, you must force the speed and duplex
settings of the BIG-IP system to match the settings of the other network
device.
If the BIG-IP system is attempting to auto-negotiate interface settings with
an interface that has the speed and duplex settings forced, you will
experience severe performance degradation.
Use the following syntax to set the media type:
b interface <interface_key> media <media_type> | auto
Interface Properties Description Default
media Specify a media type or use auto for
automatic detection.
auto
Table 4.5 Attribute you can configure for an interface
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