BPDU

how a BPDU passes through a blocked port of switch where we all know that blocked port can't able to pass any frames.

Any answer please?

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Comments

EdTheLad

Blocked ports do not transmit BPDUs, but they can receive BPDUs.

netadmin

switch is single or multiple braodcast domain? and why?

wildfire

Switches do not break up Broadcast domains, only collision domains, A switch (well most) work at layer 2 of the OSI model. A broadcast is sent out to all addresses on a subnet
so a subnet of 255.255.255.0 192.192.168.0 the broadcast address is 192.192.168.255 the addresses everything on the network

only Routers (layer 3) devide broadcasts as they work across subnets, also a switch can devide broadcasts by using VLAN's so 2 Vlans create 2 broadcast domains.

netadmin

wildfire wrote:

Switches do not break up Broadcast domains, only collision domains, A switch (well most) work at layer 2 of the OSI model. A broadcast is sent out to all addresses on a subnet
so a subnet of 255.255.255.0 192.192.168.0 the broadcast address is 192.192.168.255 the addresses everything on the network

only Routers (layer 3) devide broadcasts as they work across subnets, also a switch can devide broadcasts by using VLAN's so 2 Vlans create 2 broadcast domains.

good answer, wildfire

Thank You