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what does VTP pruning means, how does it needed to create private vlans

ITexpert
Participant
Participant

Hello Guys,

 

please explain vtp pruning, which scenario it will be the solution.

Why it is required to configure private vlans in VTP domain.

 

Thanks

2 Accepted Solutions

Accepted Solutions

andresfr
Cisco Employee
Cisco Employee
Hello ITexpert, VTP does not support Private VLANs. In fact, VTP mode must be set to transparent prior to configuring private VLANs, and those private VLANs should be manually configured on all the switches on which those are required. VTP prunning is a feature that will avoid sending unnecessary flooded traffic (broadcast traffic in a particular VLAN) to switches that are not having ports in that VLAN/Broadcast domain. Please refer to the following document for more details: VTP Prunning https://www.cisco.com/c/en/us/support/docs/lan-switching/vtp/10558-21.html#vtp_pruning

View solution in original post

Hello

Correct in fact the switch should prompt you if you try to create Pvlan if the vtp mode is other than transparent


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

View solution in original post

4 Replies 4

andresfr
Cisco Employee
Cisco Employee

Hello ITexpert,

 

VTP does not support Private VLANs. In fact, VTP mode must be set to transparent prior to configuring private VLANs, and those private VLANs should be manually configured on all the switches on which those are required.

 

VTP prunning is a feature that will avoid sending unnecessary flooded traffic (broadcast traffic in a particular VLAN) to switches that are not having ports in that VLAN/Broadcast domain.

 

Please refer to the following document for more details:

VTP Prunning

https://www.cisco.com/c/en/us/support/docs/lan-switching/vtp/10558-21.html#vtp_pruning

 

Thanks Andre,

 

you mean to say even configuring VTP pruning without transparent mode will not allow me to configure private vlans ?

 

Thanks

Hello

Correct in fact the switch should prompt you if you try to create Pvlan if the vtp mode is other than transparent


Please rate and mark as an accepted solution if you have found any of the information provided useful.
This then could assist others on these forums to find a valuable answer and broadens the community’s global network.

Kind Regards
Paul

andresfr
Cisco Employee
Cisco Employee
Hello ITexpert, VTP does not support Private VLANs. In fact, VTP mode must be set to transparent prior to configuring private VLANs, and those private VLANs should be manually configured on all the switches on which those are required. VTP prunning is a feature that will avoid sending unnecessary flooded traffic (broadcast traffic in a particular VLAN) to switches that are not having ports in that VLAN/Broadcast domain. Please refer to the following document for more details: VTP Prunning https://www.cisco.com/c/en/us/support/docs/lan-switching/vtp/10558-21.html#vtp_pruning
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