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Cisco 12000/10700 v3.1.1 Router Manager User Guide
OL-4455-01
Chapter 18 Fault Mana gem ent Heartbeat Polling
An examp le C onfigura tio n Ma nage me nt E vent Al ar m D escri ptio n i s:
“Config Cha nge, Co mmand So urc e: comm an dLin e, C onfig Source : r unn ing, Con fig Destin at ion :
commandSource”.
This would be received when a <write memory> command was issued.
Alarms are raised against the Chassis object with Informational Severity.
Heartbeat Polling
Heartbeat polling begins automatically when you commission a chassis. The chassis and all objects
within the chassis are polled every five minutes. There are two types of heartbeat polling: Connectiv ity
Managem ent and Op eration al Status Poll ing.
The Heartbeat Polling section covers the following areas:
•Connectivity Ma nagement
•Operational Status Polling
•Disabling Heartbeat Polling
•Performa nce Logg in g
Connectivity Management
Cisco 12 000/1 072 0 Rout er M anag er polls th e ma nage me nt int erfac e on the Ci sco 120 00/ 10720 Ro uter
every 60 seconds to determine network connectivity. If management connectivity is lost, the chassis
enters into a lost comms state and this state ripples down to all subchassis objects. A major lost comms
alarm is raised against the chassis. The chassis continues to poll. If it detects re-establishment, it puts
the chassis state back to the relevant state and this state ripples down to all subchassis objects as well.
An alarm of Normal severity is then raised which clears the major lost comms alarm.
Operational Status Polling
Operat ion al Status Po lli ng—Occurs at module and interface levels. Each module and interface polls for
it s ow n o p er a ti o n al s t at u s . For modules or interfaces, this is every 5 minutes. If a m od u l e o r in t e r f ace
detects that its o perational sta tus is d o wn, it enters into the Error ed state a nd rai ses a Maj or al arm. In the
Errored state the module o r inte rface will c ontinue to pol l if t he cond ition has b een r ectif ied. If it detect s
that the oper ation al sta te h as mo ved back to healthy th en the objec t will tr an sition int o the Norm al state
and raise an alarm of Normal severity which will clear the previous Major alarm.
Disabling Heartbeat Polling
You can st op hea rtbe at pollin g on an in dividual i nter face by decomm issioni ng the in terfac e. Yo u might
want to do this if you have interfaces that are not yet connected or live. For example, when you
commi ssion a chassi s, subcha ssis discovery is automatic ally init iated. If you have pre-de ployed
interfaces that are not yet live, these are discovered and put into an Errored state, after no connectivity
is detected on them. An alarm is also be raised on the interface. To correct this situation, you need to
decommission the inactive interface and clear the alarm manually.