How will i get information about switches in a topology using wireshark so i able to find out which switch used by most?? asked 01 Apr '17, 06:42  Rainy edited 01 Apr '17, 06:47  Jasper ♦♦ |
2 Answers:
You may be able to find out about the switches in your environment if they are manageable and have features like CDP or LLDP active. But to be able to capture the packets you need to connect to each switch since they won't be forwarded across switches - you can only see them on a link from each switch. So connecting Wireshark anywhere to the network and hoping to get all information in one spot is not possible. If the switches are non-managed, you won't be able to find anything about them at all. answered 01 Apr '17, 06:49 Jasper ♦♦ |
Even if you're connected to a switch, you won't see most traffic through other ports, unless it's a managed switch with port mirroring available. I bought a cheap 5 port gigabit managed switch that I configured for port mirroring. That way I can connect it into a network and see traffic passing through that port. answered 06 Apr '17, 12:08  JamesK This is mininet we're talking about, so all virtual hosts with open vSwitch. (06 Apr '17, 12:53) Jaap ♦ |
i want to find out heavy loaded switches in a topology using wireshark and mininet
For that you should log into the switches and check their stats, it's much more useful than doing it with captures.