Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    AIS–L

    Table 1: Condition Details

    Parameter

    Description

    Code

    ais-l

    Description

    Alarm Indication Signal–Line (AIS-L), SONET: The local interface has received an AIS-L signal from the NE at the far end of the fiber, indicating that no SONET signal is being transmitted upstream of (and toward) the local NE. See also Maintenance Signaling.

    Entities Affected

    SONET (OC192, WAN PHY OC192) interfaces (see table below).

    Default Severity

    Not alarmed.

    Service Affecting

    Yes (true).

    Condition Clearing

    See Clearing an AIS-L condition.

    Related Fault Hierarchy

    See OC192, WAN PHY over OC192 interface fault hierarchy.

    Table 2: SONET (OC192, WAN PHY OC192) Interfaces

    Entity Name

     

    Fault Indicator

    Module

    Indicator

    Status

    oc192:<chassis>/<slot>/<subslot>/<port>

    12x SFP+ BIC

    wanoc192:<chassis>/<slot>/<subslot>/<port>

    Clearing an AIS-L Condition

    Note: Follow all applicable safety requirements as described in the BTI7800 Series Hardware Overview and Installation Guide.

    1. Check for and clear all alarms upstream of the local NE.
    2. Check for conditions on the local interface.
      • If the condition clears, you have completed this procedure.
      • If the condition does not clear, contact your next level of support.

    Modified: 2017-07-06