Cisco ONS 15454 - Clear the MAX-STATIONS Alarm; 2.7.271 MEA (AIP); Clear the MEA (AIP) Alarm; 2.7.272 MEA (BIC)

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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.271 MEA (AIP)
If you are creating a large ring (more than 127 nodes), the MAX-STATIONS alarm might be raised until
the ring is closed and stable.
MAX-STATIONS does not suppress any other alarms. However, this alarm is suppressed by the
“RPR-PASSTHR” alarm on page 2-209.
Clear the MAX-STATIONS Alarm
Step 1 Remove the extra stations from the ring to clear this alarm in all other stations and to restore traffic in
the ring. For procedures to add or remove IEEE 802.17b-based RPR stations, refer to the
Cisco ONS 15454 and Cisco ONS 15454 SDH Ethernet Card Software Feature and Configuration
Guide.
Step 2 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call Cisco TAC 1 800 553-2447 to report a Service-Affecting (SA) problem.
2.7.271 MEA (AIP)
Default Severity: Critical (CR), Service-Affecting (SA)
SONET Logical Object: AIP
If the Mismatch of Equipment Attributes (MEA) alarm is reported against the AIP, the fuse in the AIP
board blew or is missing. The MEA alarm also occurs when an old AIP board with a 2-A fuse is installed
in a newer ANSI 10-Gbps-compatible shelf assembly (15454-SA-ANSI or 15454-SA-HD).
Clear the MEA (AIP) Alarm
Step 1 Complete the “Replace the Alarm Interface Panel” procedure on page 2-282.
Step 2 If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/techsupport
for more information or call Cisco TAC 1 800 553-2447 in order to report a Service-Affecting (SA)
problem.
2.7.272 MEA (BIC)
Default Severity: Critical (CR), Service-Affecting (SA)
SONET Logical Object: BIC
The Missing Equipment Attributes alarm for the backplane interface connector (BIC) indicates a
compatibility issue in using high-density DS-3 cards with universal backplane interface connectors
(UBIC) and an older shelf backplane. The backplane on the high-density shelf assembly, 15454-SA-HD,
is compatible with the UBIC with horizontal connectors (UBIC-H) and UBIC with vertical connectors
(UBIC-V) that the high-density EC-1, DS-1, and DS-3 electrical connections require. The MEA alarm
is raised if you attempt to install a high-density card in Slot 4, 5, 6, 12, 13, or 14 in a shelf assembly with
an older, incompatible backplane. The card is not usable in this case. It is also raised if you attempt to
use an older BIC (also known as electrical interface assemblies [EIAs]) with the newer shelf assembly.