Spanning Tree Protocol

Question

I am working with 2 BIG IP LTM in HA (Active/Standby with a Network failover between then). The actived one has configured RSTP mode and the other one just "pass through".  
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&nbsp; Any  suggestion about this configuration?  Is it needed to have both configured with RSTP mode? 
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&nbsp; Thank you,

the_bhattman · Answer

On mine I have both set to pass-through with 0 instance configured only - simply the default configuration. 
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&nbsp; Hope this helps 
&nbsp; CB

ross_vandegrift · Answer

You definitely do not want to have one with STP enabled and one without - suppose that STP is required to break loops in your network.  When you failover (say, due to a disk failing in the active), your network will go down because the new box fails to break the loop. 
&nbsp;  
&nbsp; If you don't need STP, then you should disable it on the active box as well.

luis_castro_538 · Answer

We have 2 switches behind two LTM's and 2 switches in front the LTM. The LTM's are in Active/Passive, when having this configuration the Passive LTM ports are disable when standby? Or do we need to implement STP in order to avoid looping? 
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&nbsp; Can you please help me with this? 
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&nbsp; Thx!!!

hamish · Answer

Set them to pass-though. That way YOU don't have to worry about STP versions, whether to do per-VLAN, and more importantly don't mess up the spanning tree calculations for root bridges that your network team have probably sweated over for days to get just right. 
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&nbsp; H

ciobis_204843 · Answer

I am trying to find the spanning-tree configuration options on a BIG-IP LTM 1500 platform, but there does not seem to be available. I just need to confir, is spanning-tree actually available on this platform? I am running software version 11.4.&nbsp;
Thank you very much. &nbsp;

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Spanning Tree Protocol

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