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8.4 An overloaded bandwidth condition is present on a certain ring.Thoroughly check the router for any incorrect configuration parameters that can control the amount of traffic to be forwarded to another ring. Are any incorrect configuration parameters present in the router?  Take the necessary action to resolve the problem and retest the router
for proper operation. If the failure symptom is gone, record the problem
in the network maintenance and service log. If the problem still exists
after retesting, go to the
next step
.
 Check the source ring for source-routing problems
with certain ring stations. Thoroughly examine the Routing Information field
of the frames possibly causing bandwidth problems in the destination ring
.
 Keep in mind that a particular ring station can have a software application
configuration problem in relation to the source-routing field that it is
directly transmitting.
Did examining the ring for source-routing problems locate any specific problems with a certain ring station's Routing Information field? Take the necessary action to resolve the source-routing problems with
the respective ring station's source-routing parameters, and then retest
the router for proper operation. If the failure symptom is gone, record
the problem in the network maintenance and service log. If the problem still
exists after retesting, go to the
next step
.
Attempt
to gather more conclusive fault-isolation data. Go to page 15.
Thoroughly examine the Routing Information field from all the frames
for incorrect addressing information for source routing that may be causing
an overhead problem from one ring to another. Look closely at the percentage
of frames being forwarded that are overloading the destination ring with
traffic.
If after using this procedure you cannot conclusively locate the problem
and continue to find failure symptoms that point to a router problem, reference
the manufacturer's instructions.
November 15, 1996 
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