RSTP + Stack
RSTP + Stack
I have a wired set up, maybe you can help me to understand 2 things.
I have 2 3750X in a stack.
then I have 5 unmanaged switched connected to the stack.
Each unmanaged switched has 2 ports to the 3750X Stack( one to switch 1 and one to switch 2)
I have rapid spanning tree, with the stack as root. 5 Vlans for each unmanaged switched + L3 int vlan for each vlan and lo0 int.
I don't use dynamic routing. Just running unicast and multicast (lo0 is RP).
everything works fine.
1. rapid spanning tree convergence, if i take one of the unmanaged switched. disconnected port 1 to 3750X 1. It takes 30 seconds until the other port starts to forward. when I reconnect it takes 1 second till the original port started to forward.
Is that logical it takes 30 second for RSTP to converge in this type of setup?
2. I have disconnected the stack cables while switches were running. what happened is that every switch run the same configuration still connected to my set up. after a few minutes I got duplicated IP messages on my 2 3750X.
And I was expecting that muticast and unicast will start to drop , but all was still working.
Had full multicast and unicast connectivity over 3 vlans with 2 hosts and multicast streamer source.
Is that logical?
hope you have any ideas or insights.