I have a PC connected to a port on a Catalyst 2950 (12.1(14)EA1). SPAN or port monitor is not active on the switch. When I launch my sniffer, I see a lot of non-local non-broadcast traffic...traffic between two other hosts on the subnet.
When a switch does not find a MAC address of a machine, does it simply broadcast the packet to all ports? We have a pretty big VLAN (it's a /22). I'm just wondering if a switch forwards traffic to all ports if the destination mac address is not yet found.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...