Cabletron Systems MMAC-Plus 9F116-01, User Manual, Page: 410 / 420

Glossary-8 FRX/FRM 3. 3 User G uide, Rev 04
R
RIP
stands for “routing information protocol,” which provides for dynamic routing in a
TCP/IP implementation.
Root
is the bridge determined (by implementation of the spanning tree algorithm) to be the
lowest-cost path between points in a bridged link.
Router
is a device that receives data and routes it based on decisions made concerning the
most desirable path.
Routing
is the process that selects the path taken by packets as they traverse the network
between nodes.
Routing algorithm
is the precise specification of the procedure used by the nodes to determine which of
several possible paths through the network will be taken by a packet.
RS-232C
(often called simply RS-232) is an EIA standard defining a physical and electrical
interface for DCE/DTE connections.
RS-422
is an EIA standard that operates in conjunction with RS-499 to specify electrical char-
acteristics for balanced circuits (circuits with their own ground leads).
RS-449
is an EIA standard defining a physical and electrical interface for DCE/DTE connec-
tions. It has more signals than RS-232, providing such features as diagnostic and bal-
anced circuits.
RS-530
is an EIA standard that provides RS-449 capabilities in the same DB-25 connector
used for RS-232.
S
SAP
stands for “Service Advertising Protocol” or “Service Access Point.” Service Adver-
tising Protocol allows routers and servers to exchange internetwork service infor-
mation; e.g., locations and availability of file and print servers (which connect to the
network at Service Access Points.
SDLC
stands for “synchronous data link control,” IBM's version of CCITT's HDLC (high-
level data link control) bit-oriented protocol.
Segmentation
is the same as Fragmentation.