OSPF Link-Local Signaling

OSPF is a link-state intra-domain routing protocol used in IP networks. OSPF routers exchange information on a link using packets that follow a well-defined format. The format of OSPF packets is not flexible enough to enable applications to exchange arbitrary data, which may be necessary in certain situations. This memo describes a vendor-specific, backward-compatible technique to perform link-local signaling, i.e., exchange arbitrary data on a link. This memo defines an Experimental Protocol for the Internet community.