I have a all Cisco switched network. I have a sniffer just watching broadcast and multicast traffic. This sniffer is not seeing all the traffic on the network, as there are no span ports. On this sniffer I see Pings. I dont understand how I can see pings from one server to another from a sniffer on a seperate switch on the network. And its not the pings so much, as just echo replies from server. I dont think I should see pings on a switched network, unless it was something pinging the sniffer box specifically.