Specifications

TOKEN RING DEVICES AND APPLICATIONS
3-4
Token Ring Management Modules
Cabletron provides network management modules that allow a network
manager to monitor and control the Token Ring networks configured in
the MMAC. These modules each provide one or more RS-232
communication ports from which management applications can be
accessed with a VT-series terminal or a PC running a VT-series emulation
program either directly via a console-cable connection or from a remote
modem connection.
Cabletron Systems Token Ring management modules are listed as follows:
• TRMM, provides management of a single Token Ring from the
management slot in the MMAC.
• TRMMIM, provides management to an additional ring in the MMAC
from any mid-slot in the MMAC.
• TRBMIM-T, provides the exact same management functionality (in
addition to bridging functionality) as the TRMMIM.
• TRMM-2, provides management to two Token Rings within the same
MMAC.
• TRMM-4, provides management of four Token Rings within the same
MMAC.
EXPANDING A TOKEN RING NETWORK
Figure 3-3 shows the addition of an MMAC containing a TRRMIM-22A
repeater module with RI/RO capability incorporated into a Token Ring
network supported by an MicroMMAC-T. Trunk cabling is connected
from the RI port on one hub to the RO port of the other hub, and so on, to
form a continuous ring trunk circuit.