CKTDOWN

Critical
Service affecting

The UCP Circuit Down alarm applies to logical circuits created within the UCP between devices. It occurs when a signaling failure occurs across a UCP interface. The failure can be caused by a number of things, such as failure to route the call within the core network. In that case, the alarm cannot be resolved from the ONS 15454 because the node serves as an edge device.

RSVP-HELLODOWN

Minor
Non-service affecting

The RSVP Hello Down alarm occurs when the hello protocol, which monitors UCP control channel status, is not available for reserving resources. The lack of availability can be caused by misconfiguration or loss of connectivity between the reporting node and its neighbor.

LMP-HELLODOWN

Minor
Non-service affecting

The LMP Hello Down alarm occurs when the hello protocol, which monitors UCP control channel status, is not available for link management. Unavailability can be caused by physical layer errors (such as cabling) or by control channel misconfiguration.

LMP-NDFAIL

Minor
Non-service affecting

The LMP Neighbor Detection Fail alarm occurs when neighbor detection within the UCP has failed. LMP-NDFAIL can be caused by physical failure (such as cabling) between the neighbors or by control channel misconfiguration.

UCP_CKT_DOWN

A provisioned circuit is temporarily or permanently down

The circuit becomes available.

UCP_NBR_DOWN

The Resource Reservation Protocol (RSVP) hello procedure indicates that a neighbor is down

The RSVP hello procedure declares that the neighbor is available.

UCP_CC_DOWN

The link management protocol (LMP) hello procedure indicates that the control channel is down

The LMP hello procedure indicates that the control channel is available.

UCP_ND_FAILED

The LMP neighbor discovery procedure fails

The control channel resets and the neighbor discovery procedure completes.

UCP_UNAUTH_CKTREQ

A node receives an unauthorized signaling request

This condition is not cleared (transient event).