Since few days, on my Netgear Switch M4300-28G, I have same traffic according Zabbix on different ports (see pictures below with 3 different ports). How to analyze this problem (broadcast ?) ? I know, it's not a switch problem but i don't know where to seach.
First, could you please run below two CLI command to collect all interface counters? We can check every port in/out packets(Unicast/Multicast/Broadcast) based on this statistics counters.
'clear counters all
show interface counters'
Then, if we find the certain port that received a lot of abnormal packets(Maybe broadcast or multicast). We can created a port mirror session to capture the packet, analysis these packet detailed info, and find out the root cause.
