EtherApe is a network monitor modeled after etherman with ethernet, ip and tcp modes. It displays network activity graphically. Active hosts are shown as circles of varying size, and traffic among them as lines of varying width with per-protocol color coded displays. It supports Ethernet, FDDI, Token Ring, ISDN, PPP and SLIP devices. It can filter traffic to be shown, and can read traffic from a file as well as live from the network.
EtherApe calculates an extensive set of traffic statistics, even if only a small part is always visible on the diagram. For example, every node and link maintains complete data for every protocol seen, even if only the most active is displayed. Thus, the detail dialogs show also traffic breakdown by protocol.