MMAC-Plus Management Views
3-18
The BackPlane Configuration View
The following sections detail how to use the BackPlane ConÞguration view to
manipulate modules with respect to the FNB, and how to segment the FNB to
form smaller rings.
Figure 3-6. BackPlane ConÞguration View
Configuring the 9E133-36 Module
The 9E133-36 Ethernet MicroLAN module provides three 12 port ÒMicroLANsÓ
which are bridge routed between each other and onto one of the two backplane
FNB networks via a dual-attached bridging/routing interface. This interface
attaches simultaneously to both the primary and secondary FDDI ring of FNB-1
or FNB-2. The interface is also encoded with MAC (Media Access Control)
protocol information. The primary function of the MAC layer is to deliver frames
for stations attached to the 9E133-36. This involves inserting frames into the ring,
removing frames from the ring, and repeating frames. The MAC provides
attached stations access to the FDDI ring in a fair and structured manner;
provides address recognition for incoming frames; and generates and veriÞes
frame check sequences.
