Port Assignments and Port Switching
Page 1-5
port-switching TRXMIM, Cabletron Systems offers alternative
solutions.
Figure 1-2. FNB ring 1 segmented to form two LANs
W i t h P o r t S w i t c h i n g
When controlled by a management module which supports port
switching, TRXMIMs and other port switching MIMs make use of
additional pins in their FNB connectors to create three additional
vertically stacked FNB rings as shown in Figure 1-3. The FNB itself
does not change, but these modules change the way it is used.
Figure 1-3. FNB Expanded to Four Rings by Port Switching MIMs
TRXMIMs are thus able to offer flexible network connectivity,
eliminating the need to change cable connections when switching
TRMIM
TRMIM
TRMIM
TRMM
TRMIM
TRMIM
TRMIM
TRMMIM
FNB ring wrapped at TRMMIM's right FNB interface.
FNB ring
segment A
FNB ring
segment B
Port-Switching MIMs
FNB ring 1
FNB ring 2
FNB ring 3
FNB ring 4
TRMM-4
TRXMIM
TRXMIM
TRXMIM
TRXMIM
TRXMIM
TDRMIM
TDRMIM
