FCM9002 USER MANUAL
76-02-095 Rev.B
Page 104 of 145
4.4.3.8 MDI / MDIX
There are two possible pin outs for the RJ45 physical ports, one is defined as
MDI and is typically found on data sources such as PC’s or Laptops. The other
is defined as MDIX, or MDI Crossover is typically found on switches. In order to
use a straight through patch cable, an MDI port must connect to an MDI-X port
otherwise crossover cables are required.
The FCM9002 LAN ports support auto switching technology whereby the port will
automatically detect whether it should be MDI or MDIX and will configure itself
accordingly. With auto switching ports, only straight patch cables are required.
The options are:
AUTO
Auto switching enabled
MDI
Port fixed in MDI configuration
MDIX
Port fixed in MDIX configuration
4.4.3.9 Tagging and Priority
The tagging and priority menu is only available in S-Tag mode.
The tagging and priority menu allows the Ethertype for Service VLAN / QinQ
tags to be defined. The default setting is 9100.
Some alternative values include:
8100
QinQ VLAN in VLAN
88A8
Provider Bridge
In order to support the maximum number of applications the service tag may be
configured and it is important that both ends of a link match.
