CONFIGURATION AND INSTALLATION
Page 2-5
2.3.2
IRM3 and Ethernet MIMs with FDCMIMs
This example uses the IRM3, but the same guidelines apply if you are
using an IRM, IRM2, or IRBM.
In Figure 2-4, the MMAC-5FNB has an IRM3 in slot 1, TPMIM-22s in
slots 2 and 3, and FDCMIMs in slots 4 and 5. The FDCMIMs form a
stand-alone FDDI network with no connection to the Ethernet
components. Since there is no connection between the FDDI (C) bus
and the Ethernet (A) bus in the MMAC, the two disparate networks
have no affect on each other.
2.3.3
EMME and RMIMs with FDCMIMs
The EMME, a narrow (i.e., slot 1) Ethernet management module,
works with the repeater interface controller family of MIMs (RMIM):
TPRMIM, CXRMIM, and FORMIM. The RMIMs can take full
advantage of the MMAC’s Flexible Network Bus (FNB), making them
unique. You can configure RMIMs to use either the B or C bus of the
FNB. This means that an RMIM can put Ethernet traffic on the
MMAC buses that normally see Token Ring and FDDI traffic.
The EMME can manage Ethernet traffic on the A bus (the dedicated
Ethernet bus), either FNB data bus (B or C), the D bus (through the
front panel), and can bridge traffic among the A, B, C, and D networks.
(See Figure 2-5.)
