[cisco-voip] BackupActivated messgaes showing on Operations Manager

[Wes Sisk]

So the voice gateway maintains a TCP session back to CM to backhaul isdn 
d-channel messages over to the CM server.

At first read I'd say this message means your gateway aborted TCP 
session with primary CM and connected to backup CM.  On the voice 
gateway 'sh ccm-manager' will show primary, backup, and last 
failover/failback time.

I've seen this before with issues such as CSCse69335.  In this case when 
the single endpoint stops responding to CM the CM response is to stop 
communicating with all endpoints on the complete gateway.

The "MGCP Retry Timeout Handling" service parameter on CallManager 
controls this behavior. Options on it are:
   
   
    This parameter specifies the action that Cisco CallManager
should take when MGCPTimeout occurs for the retries of the MGCP request.

    This parameter applies to all port types. However, for FXS and
FXO ports, the values Restart Port and Mark Channel Out-of-Service have
    the same effect of restarting the port.
   
   
    Valid values follow:
   
   
    Forceful Failover: Cisco CallManager closes the TCP connection
to the
    gateway, forcing it to failover to the backup Cisco CallManager.
Active
    calls are preserved.
   
   
    Graceful Failover: Cisco CallManager waits for the gateway to
timeout on
    the last MGCP KeepAlive message that it sent so that the gateway
will
    failover to the backup Cisco CallManager. Active calls are
preserved.
    With this option, it may take a long time for the gateway to
failover.
   
   
    Reset Gateway: Cisco CallManager resets the whole gateway
immediately.
    Active calls are not preserved.
   
   
    Restart Port: Cisco CallManager restarts the port immediately.
Active
    calls are preserved.
   
   
    Mark Channel Out-of-Service: Cisco CallManager marks the voice
channel
    out-of-service.
   
   
    This is a required field.
   
   
    Default:  Forceful Failover

/Wes

Nick wrote:
> We are using Operations manager 2.0.1 to monitor our voice 
> infrastructure, the last couple of days on one of our voice gateways 
> we have been recieving BackupActivated alerts for various b channels, 
> the event ID shows and the alerts show as active and then clear 
> themselves, anyone know why this could of started happening.
>  
>  
>
> Event_Description
>
> 	
>
> BackupActivated
>
> Component
>
> 	
>
> IF-10.194.27.11/402 [Se0/2/0:12]
>
> Type
>
> 	
>
> DS0
>
> IsFlapping
>
> 	
>
> false
>
> AdminStatus
>
> 	
>
> UP
>
> MaxSpeed
>
> 	
>
> 64000
>
> OperStatus
>
> 	
>
> DOWN
>
> InterfaceCode
>
> 	
>
> ISDNBCHANNEL
>
> Mode
>
> 	
>
> BACKUP
>
> DuplexMode
>
> 	
>
> FULLDUPLEX
>
> LastChangedAt
>
> 	
>
> 05-02-2008 16:05:16
>
>  
>  
>  
>  
> ------------------------------------------------------------------------
>
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>   
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