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APPENDIX
•
Router - A store-and-forward protocol-dependent device connecting networks that switches packets to the
appropriate network.
•
Runt - A frame that is less than 64 bytes (minFrameSize) long, exclusive of preamble and SFD. Synonym:
fragment.
•
Saturn - Sonet-ATM User Network. A group to develop chips to Sonet and ATM Forum specifications.
•
SCSI - Small Computer System Interface.
•
SDH - Synchronous Digital Hierarchy. ITU' s European designation for fiber-optic transmission. See also Sonet.
•
SDLC - Synchronous Data Link Control. Used in Systems Network Architecture.
•
Sending End Overshoot SEO.
•
SFD - Start Frame Delimiter. A single byte with value 10101011, transmitted from left to right. It follows the
preamble.
•
Signal Quality Error - SQE. Also, heartbeat.
•
SLIP - Serial Line Internet Protocol. Predecessor to PPP.
•
SMDS - Switched Multimegabit Data Service, a 45-Mbit/s cell-relay service based on IEEE 802.6 Distributed
Queue Dual Bus. Also, Sorta Mega Data Stuff. (Seen on a workbench at Pacific Bell s Broadband Labs,
Concord, California.)
•
SMTP - Simple Mail Transfer Protocol. An application program provided by almost every TCP/IP
implementation.
•
SNMP - Simple Network Management Protocol. Allows a TCP/IP host to query other nodes for network-related
statistics and error conditions.
•
Sonet - Synchronous Optical Network. ANSI U.S. fiber-optic transmission standard. See also SDH.
TM
•
Sonic
- National Semiconductor Corporation' s DP83932B Systems-Oriented Network Interface Controller.
•
Spanning tree - An algorithm to create a logical topology connecting all network segments, and ensures that
only one path exists between any two stations.
•
Spool - Simultaneous Peripheral Operation On-line.
•
SQE - Signal Quality Error. Also, heartbeat.
•
Start Frame Delimiter - see SFD.
•
Station address - An Ethernet address whose first bit transmitted, used to identify it either as an individual or as
a group address, is 0, indicating that the address field contains an individual address, and so is associated with
a particular station on the network. The first byte of a multicast address is even, for example, 00-00-00-00-00-
00.
•
STS-1 - Synchronous Transport Signals.
•
T1 - 1.544 Mbits/s.
•
TAP - Test Access Port. See JTAG.
1. Project 802 Local and Metropolitan Area Networks. Draft Guide to ANSI/IEEE Std. 802.3 (CSMA/CS Ac-
cess Method and Physical Layer Specifications). SysTAG Network Guide, Draft 5.2, January 23, 1994.
Section 4.9: Sending End Overshoot (SEO), page 33.
A-6
1
KS8910 100/10 Mbps ETHERNET TRANSCEIVER
Preliminary Spec. ver
1.4
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