Technical data

root name
The element of a path name that identifies the target file system.
root server
An Internet name server that knows about all of the top-level domains on the
Internet network; the master servers for the Internet root zone.
round-trip delay
The total time during communications that implement a protocol with positive
acknowledgments,foramessagetobetransmitted,arriveatitsdestination,and
its corresponding acknowledgment to be sent and subsequently received by the
sender of the original message.
ThetimeittakesforahosttosendanNTPpackettoanotherhostandgetan
NTPpacketbackfromthathostinreply.
round-trip time (RTT)
A variable computed during TCP sessions that indicates the total time required to
send a TCP segment to a remote host and receive a reply.
route
The path over the network that information takes to get from one source to its
destination.
route through
Data packets not destined for the local node.
routes database
The Compaq TCP/IP Services for OpenVMS database that specifies Internet
gateways.
ROUTED
See Routing Daemon.
RoutingDaemon(ROUTED)
A program that runs under 4.2BSD/4.3BSD UNIX systems (and derived operating
systems) to propagate routes among machines on a local area network using the
Routing Information Protocol; pronounced "route-dee."
One of a class of interior gateway protocols, described in more detail in the RIP
section of gated.proto(4).
router
A node that can send and forward data to and receive data from other nodes.
router advertisement
A Router Discovery Protocol message sent out by Router Discovery Servers to
announce their existence to hosts. The router advertisement contains a list of all
router addresses on a given interface and their preferences for use as a default
router.
Router Discovery Protocol
An IETF standard protocol used to inform hosts of the existence of routers. It
is used in place of or in addition to statically configured default routes in hosts.
The protocol has a server portion that runs on routers, and a client portion that
runs on hosts.
router id
A 32-bit number assigned to each router running the OSPF protocol. This number
uniquely identifies the router within the autonomous system.
Glossary–39