Fast Failover for STP and Cluster

Previously, cluster STP operation does not support fast failover because the STP state machine state is not shared between the two nodes. As a result, when the master fails, the slave recomputes the STP state from scratch. When the cluster comes online, the cluster recomputes the STP state from scratch. This causes topology changes which cause traffic loss until the STP converges. Fast failure is now supported by default.

New show commands are available for this feature:



CLI (network-admin@Leaf1) > stp-state-show

switch:           Leaf-1

vlan:             1

ports:            none

instance-id:      1

name:             stg-default

bridge-id:        66:0e:94:d5:b0:cc

bridge-priority:  32769

root-id:          66:0e:94:35:c2:ce

root-priority:    32769

root-port:        128

hello-time:       2

forwarding-delay: 15

max-age:          20

disabled:         none

learning:         none

forwarding:       none

discarding:       none

edge:             none

designated:       none

alternate:        none

backup:           none


STP parameters such as bridge-priority, port cost values configured before upgrading to Netvisor One 2.4.0 are set to default values after upgrade to Netvisor One 2.4.0.

You must reconfigure STP after upgrading the software.