adjacency

networking A relationship between two network devices,

e.g. routers, which are connected by one media segment so

that a packet sent by one can reach the other without going

through another network device. The concept of adjacency is

important in the exchange of routing information.

Adjacent SNA nodes are nodes connected to a given node

with no intervening nodes. In DECnet and OSI, adjacent

nodes share a common segment (Ethernet, FDDI, TokenRing).

(1998-03-10)