Here is the situation, I have two switches which are SF200 and SG300 and trying to link them up using sfp module ( fiber).
They are both in trunk mode and the connection is up but nothing or no ip traffic goes through it .
I have ensured allowed vlans are correct, native vlan do match but still nothing .
Then i did a port monitor on it ( replicate it to another port) but all I could see was bunch of stp,arp , mdsn and llc traffic. nothing to do with do1q extension.
I used wireshark , would I be able to monitor trunk traffic at all? would the protocol be dot1q ?
However the fiber link works if I plug one of the connection which goes to the sg300 to a fiber convertor and then connect a rj45 cable from the convertor to the sg300 rj45 port. that is the only way which it works. This suggest to me a possible issue with the fiber module on the sg300 however I have tried few differnet modules and still nothing , I did even try the one which is on the sf200 ( working ) and still nothing .
What boggles me is the fact that the link is seen as up and all good by both switches but nothing does go through them.
Introduction:Topology Diagram:Configuration Overview:Related
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