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Looking for some advice on what would be the best approach to prevent physical loops at the access layer. Our existing design is quite simple, it consists of several switches acting as layer 2 (around 6-7) and all of them are connected to a switch th...
Dear community,I'm trying to setup a broadband link in our router, ISP shared it is using PPPoE to establish the lnik and get a public static IP address. I've configured so far the physical port towards the ONT as follows: interface TenGigabitEtherne...
@David Ruess thanks for your input again, I was under the wrong assumption that portfast configuration was preventing the ports to send out BPDUs, we will have that tested in our lab, hopefully that will make the trick
Thank you all for your feedback, really appreciated.@MHM Cisco World no, we are not applying BPDU filter.@David Ruess the problem is normally happening on access ports configured with portfast so no BPDUs are received when both ports are interconnect...
Hi @MHM Cisco World, it is resolved but I finally connected ISP ONT to our firewall, instead of our Cisco 920. This worked perfectly fine with an MTU of 1492. I'm still wondering what was wrong with Cisco config.... unfortunately we couldn't spend mo...
@MHM Cisco World thanks for this, I'm a bit confused about your suggestion, how can I test connectivity with ISP if PPPoE is not even established? I'm not getting any IP assigned on Dialer interface so I assume pings will fail due to that, correct?
