With NSRP, you can monitor certain objects, such as interfaces, zones, and tracked IP address, to determine failover of the device or of a VSD group. When monitoring a zone, NSRP checks that all physical interfaces bound to the monitored zone are active.
Each monitored object has a configurable failure weight. You can set the object failure weight at any value between 1 and 255. The default failure weight for monitored objects is 255.
Failure of a monitored zone occurs only when all physical interfaces in the monitored zone are down. There is no zone failure as long as there is still an active port in that zone. If a monitored zone has no interfaces bound to it, the zone object does not fail. If a down interface is the only interface bound to a monitored zone, the zone object fails. If you then unbind the interface from that zone, the zone is no longer considered as down. If you unbind an active interface from a monitored zone where the remaining interfaces are down, the zone will be considered as down.
Note: Objects that are monitored for a VSD group are independent from the objects monitored for the device. That is, you can configure a specific set of objects, weights, and thresholds for a VSD group and a different set for a device. You can also configure independent sets of monitored objects for different VSD groups. For example, you can configure the same monitored objects for two VSD groups with different weights and thresholds specified for each VSD group for the object.
The following two types of table can appear on this page:
VSD ID: Device – This table contains a list of monitored zones and their weights that can contribute toward a device failover.
VSD ID: vsd_id_num – This table contains a list of monitored zones and their weights that can contribute toward the failover of just the specified VSD group to another device.
To set failure weights for zones, click Edit Zone. For more information, see Zone Weights.