Managing 5620 Sam 1830 Pss Alarms Overview; Alarms For Network Objects; Service Problems With No Associated Alarms - Alcatel-Lucent 5620 Manual

1 — Managing 5620 SAM 1830 PSS alarms
1.1

Managing 5620 SAM 1830 PSS alarms overview

This chapter provides an overview of 5620 SAM alarm management for the
1830 PSS devices.

Alarms for network objects

The 5620 SAM converts SNMP traps from NEs to events and alarms. You can then
use the 5620 SAM to correlate the events and alarms to the managed object,
configured services and policies. A correlated event or alarm can cause fault
conditions on multiple network objects and services. For example, an alarm raised
for a port failure causes alarms on all services that use that port. You can view the
alarm notification from the 5620 SAM topology maps, service configuration forms,
and customer information form that lists the affected objects.
The 5620 SAM alarm-based fault management system provides the following
functionality
•
correlation of alarms with equipment- and service-affecting faults
•
updates to the managed object operational status in near-real-time
•
alarm policy control that allows a network administrator to specify how to
process alarms, and how to create and store the alarm logs
•
point-and-click alarm management using the 5620 SAM GUI dynamic alarm list
and object properties forms
•
ability to log the actions to correct the associated fault by adding notes to the
alarm
•
alarm history for performing trend analysis

Service problems with no associated alarms

The proper delivery of services requires a number of operations that must occur
correctly at different levels within the service model. For example, an operation such
as the association of packets to a service, VC labels to a service, and each service to
a service tunnel must be performed successfully for the service to pass traffic
according to SLAs.
Even when tunnels are operating correctly and are correctly bound to services, for
example, incorrect FIB information can cause connectivity issues. You can use
configurable in-band or out-of-band packet-based OAM tools to verify that a service
is operational and that the FIB information is correct. Each OAM diagnostic can test
each of the individual packet operations. You must test the packet operation in both
directions.
For in-band, packet-based testing, the OAM packets closely resemble customer
packets to effectively test the forwarding path for the customer. However, you can
distinguish the OAM packets from customer packets, so they remain within the
managed network and are not forwarded to the customer. For out-of-band testing,
OAM packets are sent across some portion of the transport network. For example,
OAM packets are sent across LSPs to test reachability.
1-2 September 2011 Alcatel-Lucent 5620 Service Aware Manager, Release 9.0 R4
Optical Alarm Reference 3HE 06513 AAAD TQZZA Edition 01