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TESTING AND TROUBLESHOOTING
5. Check the network ring speed:
a. Be sure the ring speed matches the station and cable
specifications listed in Chapter 2, Installation
Requirements/Specifications.
b. Check that all devices in the ring network are set to the same
ring speed. Check all MIMs and stations in the network.
c. Verify that the MIMs in the MMAC are grouped together
according to network protocol and ring speed. For example,
Ethernet MIMs together, 4 Mbit/sec Token Ring MIMs
together, and 16 Mbit/sec Token Ring MIMs together.
4. Check that the lobe cabling for each of the attached stations
does not exceed the maximum lobe length and that the
maximum number of stations is not exceeded.
If problems persist after performing these checks, contact Cabletron
Systems Technical Support.
4.2 USING LANVIEW
LANVIEW, Cabletron Systems built-in visual diagnostic and status
monitoring system provides visual feedback on the repeater status.
Using LANVIEW, your network troubleshooting personnel can
quickly scan the LANVIEW LEDs (see Figure 4-1 and Table 4-1) to
observe network status or diagnose network problems, and
determine which node or segment is faulty.
Page 4-2
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