IRM3 User’s Guide
Page 2-1
CHAPTER 2
NETWORK PLANNING AND CONFIGURATION
This chapter addresses some of the configuration issues that you should
consider when installing the IRM3, including 802.3 standards related to
repeaters, transceivers, and cables. This chapter also gives an overview of
Cabletron Systems Multi Media Access Center (MMAC) and the Media
Interface Modules (MIM) that can be managed by the IRM3. Finally, an
example of a network configuration using the IRM3 is provided.
2.1 NETWORK REQUIREMENTS
When connecting network segments to the IRM3, you must follow the
network guidelines listed below.
2.1.1 802.3 Repeater Requirements
Depending on the size of your network, you may need to use multiple
repeaters. When planning your network, keep in mind that 802.3
standards allow for no more than four repeaters in one data path. If your
network requires more than four repeaters, use a bridge to create a new
data path.
2.1.2 AUI Port Requirements
The IRM3 provides the flexibility of connecting to a network with
different types of media through the AUI port. Using an AUI cable along
with the proper Cabletron Systems transceiver, you can connect to the
network with AUI cable, coaxial cable, twisted pair cable, or fiber optic
cable.
