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STP Root bridge

Hi Experts,

If root bridge for a specfic user vlan is not the core switch of the network  and if the root bridge cost from core switch is very high does that affect the users connected to that vlan?

Thanks,
phoenix
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phoenix26
Asked:
phoenix26
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3 Solutions
 
JFrederick29Commented:
Things will still work but it may not be the most efficient path through the network.  Best to make the core switch the root bridge for that VLAN.
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phoenix26Author Commented:
Hi Expert,

Thanks.For other two vlans in the network the prioroty is configured as this in the core switch spanning-tree vlan x,y priority 24576.these vlans have root bridge as core.What command should I give to  change the uservlan to same proority?I believe I should give this in global config mode.


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JFrederick29Commented:
conf t
spanning-tree vlan z priority 24576

Where z is the new VLAN.
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phoenix26Author Commented:
Hi Expert,

Can this command be run during production times?I assume spanning tree will be recalculated when this command is issued
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JFrederick29Commented:
Yes, a recalculation will occur so it's best to run off-hours or during maintenance window just in case.
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