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12 Troubleshooting
.
Table 34 Remote Troubleshooting — CCU
Confirm the network link
to the CCU
A
Confirm EUM status at
the CCU
B
Check for system
congestion
C
146
What should I do?
What is a good result?
Telnet to the CCU.
Access to the CCU is
available.
Enter the CLI, type
All EUMs for the sector
<air> .
should be listed.
In the CLI, type <ra
No indication of
meter> .
violations indicating
system congestion. Note
aveIPS readings for all
GOS levels.
What does a good
What if I do not get a good result?
result mean?
Verifies network access
Either the network connection to the CCU is
connectivity down to the
down, or the CCU Ethernet port is not
CCU level.
responding. Confirm the network connection
to the CCU site. If OK, go to the local CCU
tests outlined in
All EUMs listed have
If only some EUMs are missing, they may be
successfully
turned off, or may be unable to communicate
communicated with the
with the CCU. Verify that all EUMs are
CCU during the last 12-
assigned a usable GOS in the Authorization
hour period. The time
Table (enter <auth> in the CLI). If no EUMs
since their last
are present, all EUMs have been unable to
transmission is listed in
communicate with the CCU. Reset the CCU.
the table. Go to Test C.
If no EUMs register, suspect CCU system
failure, or high level of interference. Go to the
local CCU tests outlined in
147.
No violations means all
Violations indicate system congestion - too
users are receiving
many users at too high a service level. You
subscribed levels of
need to analyze your user traffic levels.
service. AveIPS values
AveIPS can be used to monitor fluctuation in
that are significantly
user-perceived throughput. Slowdowns, even
longer than minimum for
within the bounds of subscribed service, may
the specific GOS may
result in customer complaints.
indicate users are seeing
"degraded" service with
respect to their maximum
burst rate. This can
happen during busy
hour, depending on
system traffic load and
engineering.
Table 35 on page
147.
Table 35 on page
APCD-LM043-4.0
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Troubleshooting
