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New Member

vlan configuration

Can anyone shed some light.

If I have a number of switches in my network connected by trunks & one switch is in server mode & the rest in client mode, I understand that I create the vlans on the switch in server mode & this vlan information should propogate to all client switches.

Does this mean that for instance if I assign ports 3 to 5 on the server switch to vlan 2, that ports 3 to 5 on every client switch will also be in vlan 2???

3 ACCEPTED SOLUTIONS

Accepted Solutions
Hall of Fame Super Silver

Re: vlan configuration

Andrew

No it does not mean that every switch will put ports 3 to 5 into the vlan. You are talking about VTP which transmits characteristics of the vlan to other switches, but not the port assignments. Each switch makes its own port assignments, independent of what any other switch does.

HTH

Rick

Re: vlan configuration

Does this mean that for instance if I assign ports 3 to 5 on the server switch to vlan 2, that ports 3 to 5 on every client switch will also be in vlan 2???

No.

The dynamic VLAN propogation mechanism you are talking about is called VTP. VTP dynamically propogates the VLANs created on the VTP server to the other client/server switches in the same VTP domain.

You would still have to access every switch to assign ports to the appropriate VLANs. The only thing you don't need to do is not having to create the VLANs in the other switches when VTP is enabled.

HTH

Sundar

New Member

Re: vlan configuration

The VTP server will propagate all the VLANS to all the VTP clients. Each port on the VTP client switch must be configure to your desired VLAN. Also make sure that you only have one VTP server if you add a switch in your network and accidentally that switch is set to VTP server with higher revision, it will take over as the VTP server.

7 REPLIES
Hall of Fame Super Silver

Re: vlan configuration

Andrew

No it does not mean that every switch will put ports 3 to 5 into the vlan. You are talking about VTP which transmits characteristics of the vlan to other switches, but not the port assignments. Each switch makes its own port assignments, independent of what any other switch does.

HTH

Rick

New Member

Re: vlan configuration

Thanks for the help

Re: vlan configuration

Does this mean that for instance if I assign ports 3 to 5 on the server switch to vlan 2, that ports 3 to 5 on every client switch will also be in vlan 2???

No.

The dynamic VLAN propogation mechanism you are talking about is called VTP. VTP dynamically propogates the VLANs created on the VTP server to the other client/server switches in the same VTP domain.

You would still have to access every switch to assign ports to the appropriate VLANs. The only thing you don't need to do is not having to create the VLANs in the other switches when VTP is enabled.

HTH

Sundar

New Member

Re: vlan configuration

Thanks for the help

New Member

Re: vlan configuration

The VTP server will propagate all the VLANS to all the VTP clients. Each port on the VTP client switch must be configure to your desired VLAN. Also make sure that you only have one VTP server if you add a switch in your network and accidentally that switch is set to VTP server with higher revision, it will take over as the VTP server.

New Member

Re: vlan configuration

Much appreciated

New Member

Re: vlan configuration

To add to all this the port informtion is local to the switch and VTP do not carry that.

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