Hi,
clearly no networking expert here - so maybe somebody with more experience in this can answer
I am trying to get more resilience in my network by adding a second cross building interconnect. The simplified target design would basically look like this:
Now from what I understand this would be a case for STP (or RVSTP[+]), but its not working as expected.
Whenever i enable the second connection from the '36 to a 350x I get link flapping (i.e. one of the interfaces gets shut down every couple of seconds, then its up again, then down and so on).
I have set stp priorities across all switches assuming that should enable a least cost route but its not working as expected yet.
I have not dabbled with any of the other settings (loop guard, port types etc) as when i originally activated loop guard it shut down my access port to the switch and I had some fun times getting everything going again, so not too keen on 'uneducated playing around'.
I am sure I must be missing something fairly simple here, but I just have not the background to see it.
The goal would be to have all links up&running all the time providing resilience. If I also could get load distribution /least cost routing at the same time then that would be a nice bonus. I am not looking to separate vlans on switches atm, since for failover reasons all vlans might need to cross buildings too.
Thanks
clearly no networking expert here - so maybe somebody with more experience in this can answer
I am trying to get more resilience in my network by adding a second cross building interconnect. The simplified target design would basically look like this:
Now from what I understand this would be a case for STP (or RVSTP[+]), but its not working as expected.
Whenever i enable the second connection from the '36 to a 350x I get link flapping (i.e. one of the interfaces gets shut down every couple of seconds, then its up again, then down and so on).
I have set stp priorities across all switches assuming that should enable a least cost route but its not working as expected yet.
I have not dabbled with any of the other settings (loop guard, port types etc) as when i originally activated loop guard it shut down my access port to the switch and I had some fun times getting everything going again, so not too keen on 'uneducated playing around'.
I am sure I must be missing something fairly simple here, but I just have not the background to see it.
The goal would be to have all links up&running all the time providing resilience. If I also could get load distribution /least cost routing at the same time then that would be a nice bonus. I am not looking to separate vlans on switches atm, since for failover reasons all vlans might need to cross buildings too.
Thanks