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Regular Contributor I
Posts: 192
Registered: ‎03-27-2014

Problemas VRRP

Buenas,

 

Hemos estado realizando cambios de prioridad en el VRRP y nos hemos encontrado el siguiente problema:

 

Pasamos el master como priority 80 y el backup se queda como priority99. Entiendo que deberia pasar los ap's del controller ppal al de backup, pero no fue asi. No sabemos porque no se han cambiado. No se si tiene que ver el tracked priority.

Tampoco sabemos para que funciona el  Tracking Master Up Time  y Tracking Master Up Time Priority 

 

Virtual Router 90:
Description VRRP-GESTION
Admin State UP, VR State MASTER
IP Address xxxxx, MAC Address xxxxxx, vlan 90
Priority 110, Advertisement 1 sec, Preemption Enable Delay 0
Auth type PASSWORD, Auth data: ********
tracking type is master-up-time, duration 30 minutes, value 20
tracked priority 130

 

Virtual Router 91:
Description VRRP-APs
Admin State UP, VR State BACKUP
IP Address xxxxx, MAC Address xxxxxxx, vlan 91
Priority 99, Advertisement 1 sec, Preemption Enable Delay 0
Auth type PASSWORD, Auth data: ********
tracking type is master-up-time, duration 30 minutes, value 20
tracked priority 99

Moderator
Posts: 906
Registered: ‎07-29-2010

Re: Problemas VRRP

Con relación al fallo que comentas, revisad que esté bien montado el VRRP (que estén llegando los "heartbeat", etc) porque esta es una configuración muy común. Si quieres pégala por aquí y le echamos un vistazo.

 

En cuanto al tracking master up y otras opciones de tracking, mira lo que dice el manual de la versión 6.4 (página 562):

 

   
   
   
   
   
   
   
   
   
   

Tracking

Configures a tracking mechanism that modifies a specified value to the priority after a controller has been the master for the VRRP instance. This mechanism is used to avoid failing over to a backup Master for transient failures.
Tracking can be based on one of the following:

l MasterUpTime:howlongthecontrollerhasbeenthemaster.Thevalueof duration is the length of time that the administrator expects will be long enough that the database gathered in the time is too important to be lost. This will obviously vary from instance to instance.

l VRRPMasterStatePriority:themasterstateofanotherVRRP.
Tracking can also be based on the interface states of the controller:
l VLANandInterface:preventsasymmetricroutingbytrackingmultipleVRRP

instances. The priority of the VRRP interface determined by the sub value can increase or decrease based on the operational and transitional states of the specified VLAN or Fast Ethernet/Gigabit Ethernet port. When the VLAN or interface comes up again, the value is restored to the previous priority level. You can track a combined maximum of 16 interfaces and VLANs.

   
 

For example, you can track an interface that connects to a default gateway. In this situation, configure the VRRP priority to decrease and trigger a VRRP master re- election if the interface goes down. This not only prevents network traffic from being forwarded, but reduces VRRP processing.

   
Samuel Pérez
ACMP, ACCP, ACDX#100

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Regular Contributor I
Posts: 192
Registered: ‎03-27-2014

Re: Problemas VRRP

Gracias Samuel

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