non-routable protocol

non-routable protocol

A communications protocol that contains only a device address and not a network address. It does not incorporate an addressing scheme for sending data from one network to another. Examples of non-routable protocols are NetBIOS and DEC's LAT protocols. Contrast with routable protocol.
References in periodicals archive ?
Non-routable protocols were indicated to be of lesser importance.
Unlike RIP and OSPF (which determines the best path through either hop count or link speed, respectively), switch meshing is able to load balance based on link latency and, since this is done at layer 2, it can load balance all non-routable protocols.
With the ability to be populated with one or more (up to five) Layer 3 services line cards, the Catalyst 4000 Family switches also offer wire-speed, Layer 2 switching for non-routable protocols such as NetBIOS, DECnet, and local-area transport (LAT).
In addition to having a much lower cost than routing, this solution is also superior to routing by supporting non-routable protocols like NETBIOS.