What is a L2 Broadcasts domain and how are they handled by the Codima Discovery Engine?
The Codima Discovery Engine makes allowance for layer 2 broadcast domains, see below. Assumptions Switch Forwarding Databases Each switch has a Forwarding database which holds information about ALL the MAC addresses in a particular Spanning Tree Groups, VLANs. Each switch has knowledge of the MAC addresses that are locally connected e.g. workstations or Servers. They also have knowledge of which MAC addresses are non-local i.e. learned through trunk ports from other switches. MAC addresses A MAC address can only have one connection to a switch port. Rational Working with these assumptions, we run a calculation on each switch forwarding database to find which addresses are not local to each switch. The MAC addresses left over can be seen on trunk ports, therefore they exist on an unmanaged or miss-configured switch/hub. We create a Layer 2 Broadcast object, based on a MAC address having only one connection to a switch or hub. The result is a Layer 2 Broadcast device (with a set of MAC a
