STP in Nexus

1)  spanning-tree port type edge # when the port of the switch needs to be connected to a single host ( portfast in cisco IOS)

spanning-tree port type edge trunk # when the port is connected to a single host with a trunk(Like a VM)

2) spanning-tree port type normal # this will pass through the normal STP process

3) spanning-tree port type network # Bridge Assurance is enabled here , can be seen when VPC peer link is configured



Bridge Assurance

If  suppose a cable or wire inside the network cable fails , one end keeps on sending BPDU,

when Bridge Assurance is enabled it the switch checks for ack of bpdu and if it does not receive ,it stops the 

bpdu.

 

STP in NEXUS

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