Ais; Clear The Ais Condition; Ais-L; Clear The Ais-L Condition - Cisco ONS 15310-CL Troubleshooting Manual

Chapter 1 Alarm Troubleshooting

1.7.1 AIS

The Alarm Indication Signal (AIS) condition indicates that this node is detecting an alarm indication
signal in the incoming signal SONET overhead.
Generally, an AIS is a special SONET signal that communicates to the receiving node when the transmit
node does not send a valid signal. AIS is not considered an error. It is raised by the receiving node on
each input when the node sees the AIS instead of a real signal. In most cases when this condition is
raised, an upstream node is raising an alarm to indicate a signal failure; all nodes downstream from it
only raise some type of AIS. This condition clears when you resolve the problem on the upstream node.

Clear the AIS Condition

Determine whether there are alarms on the upstream nodes and equipment, especially the
Step 1
alarm on page
Step 2 Clear the upstream alarms using the applicable procedures in this chapter.
If the condition does not clear, log into the Technical Support Website at
Step 3
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447).

1.7.2 AIS-L

The AIS Line condition indicates that this node is detecting line-level AIS in the incoming signal. This
alarm is secondary to another alarm occurring simultaneously in an upstream node.
This condition can also be raised in conjunction with the
enabled.

Clear the AIS-L Condition

Complete the
Step 1
If the condition does not clear, log into the Technical Support Website at
Step 2
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447).

1.7.3 AIS-P

78-17235-01
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
Logical Objects: BITS, DS1, DS3, FUDC
1-99, or if there are out-of-service (OOS,MT or OOS,DSBLD) ports.
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
Logical Objects: EC1, OCN
"Clear the AIS Condition" procedure on page
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
Logical Objects: STSMON, STSTRM
"TIM-S" alarm on page 1-140
Cisco ONS 15310-CL and Cisco ONS 15310-MA Troubleshooting Guide, R7.0
1-19.
1.7.1 AIS
"LOS (OCN)"
if AIS-L is
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