Problems Involving The Ethernet; Digital Service - Digital Equipment MUXserver 100 Reference Manual

4.6 PROBLEMS INVOLVING THE ETHERNET
In Chapter 3, Section 3.2.1 (Show Counters) contains guidelines for monitoring
the Ethernet using the SHOW COUNTERS display. The SHOW COUNTERS
data is your primary tool for detecting Ethernet problems. However, down-line
load or up-line dump failures also indicate possible Ethernet problems.
Problem The counters listed on the right hand column of the SHOW
COUNTERS display exceed guidelines.
Or Message 915 (supervisor port terminal only) indicates that a trans-
mission failed after several attempts during a down-line load or up-
line dump.
Or Down-line loads or up-line dumps fail intermittently.
Correction: Use the privileged LOO P command to test the circuits
between the MUXserver 100 and any node on the Ethernet. The
command syntax is discussed in detail in Section 5.15 LOOP. The
server software displays either message 512 or 513 on your terminal
to indicate whether this loopback test succeeds or fails. If the test
fails, coordinate with your network manager to resolve the Ethernet
problem.
Ask the system manager of the load host to check the load host's
Ethernet counters.
If
the counters indicate a possible Ethernet prob-
lem, the system manager can use the NCP LOOP CIRCUIT com-
mand to test the Ethernet between the load host and the
MUXserver 100.
If
the test is unsuccessful, contact the network
manager.
4.7 DIGITAL SERVICE
The hardware and software service options available from DIGITAL are de-
scribed in the MUXserver 100 Networll Installation Guide. One hardware op-
tion and one software option are in effect for your MUXserver 100 system.
Contact your DIGITAL sales representative for more information.
40 CHAPTER 4 MUXserver 100 TROUBLESHOOTING