Hello,
I am a junior network engineer and I recently started a new job working in a data center environment with hundreds of VMs with applications at very high availability, I cannot allow to lose connection at any time of the day. Moreover, the system team works with Hyper-V and they told me if they lose the network for more than 20 seconds at a node, they lose all the VMs in that node. So I have to be careful at every change.
We have two Nexus 5000 running VPC and 6 Cisco 3750 connected to each Nexus (So logically there is no loop)
The Nexus are already running Rapid-PVST but the 3750 are running PVST. I want to migrate the 3750 to Rapid-PVST.
I don't know how much time the network will be down (or if it will be noticeable or not). My problem is with the 20 seconds limit fixed by the Hyper-V infrastructure.
How should I proceed ?
Did anyone encouter this case before ?
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