12-06-2010 02:54 AM - edited 03-06-2019 02:22 PM
Hi I'm Fabio.
I'm getting a mistake with PVSTPconfiguration.
Briefly, I want:
1)Swicth A primary root for VLAN 22, 23. Secondary root for VLAN 21
2)Switch B primary root for VLAN 21. Secondary root for VLAN 22, 23
3)I know how to configure primary root and secondary root, but i have some doubts about vlan configurations.
Questions:
A)How i have to set the STP mode for each switch? Transparent? Server? Client?
B)Where i have to create VLAN 21, 22, 23?
Thanks, Fabio.
Solved! Go to Solution.
12-06-2010 03:08 AM
Fabio
The answer to question b) depends entirely on what you do in question a).
Do you mean VTP mode rather than STP mode ? A switch can either be a VTP server, client or transparent.
If transparent then you have to configure the vlans on all switches.
If you make switch A or B or both VTP server then you can configure C to be a client and configure the vlans on just one of the switches, either A or B if they are both VTP servers. If you just make A VTP server then configure B & C to be client and then configure the vlans on switch A and they will be propogated to B & C.
Once the vlans are there on all switches then on A -
spanning-tree vlan 22 - 23 root primary
spanning-tree vlan 21 root secondary
on B -
spanning-tree vlan 21 root primary
spanning-tree vlan 22 - 23 root secondary
Jon
12-06-2010 03:08 AM
Fabio
The answer to question b) depends entirely on what you do in question a).
Do you mean VTP mode rather than STP mode ? A switch can either be a VTP server, client or transparent.
If transparent then you have to configure the vlans on all switches.
If you make switch A or B or both VTP server then you can configure C to be a client and configure the vlans on just one of the switches, either A or B if they are both VTP servers. If you just make A VTP server then configure B & C to be client and then configure the vlans on switch A and they will be propogated to B & C.
Once the vlans are there on all switches then on A -
spanning-tree vlan 22 - 23 root primary
spanning-tree vlan 21 root secondary
on B -
spanning-tree vlan 21 root primary
spanning-tree vlan 22 - 23 root secondary
Jon
12-06-2010 03:22 AM
Hi Jon, thanks now i get my misunderstanding.
I put togheter two different concepts, VTP and PVSTP.
Good job Jon, regards Fabio.
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