PREVENT VRRP MASTER / MASTER SPLIT IN ACTIVE / STANDBY ICR SYSTEM

摘要

Exemplary methods for preventing a master/master split condition in a virtual router redundancy protocol (VRRP) router comprising of a first network device configured to serve as a backup router of the VRRP router, and a second network device configured to serve as a master router of the VRRP router, include in response to determining that there is a possibility that the second network device is no longer capable of forwarding network traffic as the master router of the VRRP router, transitioning into a curfew state. The methods further include in response to determining that a VRRP advertisement message was not received within a master_down_interval, determining to not transition to serving as the master router of the VRRP router in response to determining the first network device is in the curfew state.

主权项

1. A method in a first network device of a virtual router redundancy protocol (VRRP) router, the VRRP router comprising of the first network device configured to serve as a backup router of the VRRP router, and a second network device configured to serve as a master router of the VRRP router, the method comprising:
in response to determining that there is a possibility that the second network device is no longer capable of forwarding network traffic as the master router of the VRRP router, transitioning into a curfew state; and in response to determining that a VRRP advertisement message was not received within a master_down_interval, determining to not transition to serving as the master router of the VRRP router in response to determining the first network device is in the curfew state.