ACK (ACKnowledgment) TCP header confirm mark API (Application Programming Interface) application programming interface ARP (Address Resolution Protocol) ARP AR PA NET (Defense Advanced Research Project Agency NETwork) (US) Department of Defense Advanced Research Projects Agency AS ( Autonomous System ASCII (American Standard Code for Information Interchange) USA Information Exchange Standard Code ASN.1 (Abstract Syntax Notation ONE) Abstract Syntax Notes 1ber (Basic Encoding Rule) Basic Code Rule BGP (Border Gateway Protocol) Boundary Gateway Agreement BIND (Berkeley Internet Name domain) Berkeley I nternet domain BOOTP (bOOTstrap protocol) bootstrap protocol BPF (BSD packet filter) BSD packet filter CIDR (Classless InterDomain Routing) Classless inter-domain Routing CIX (commercial Internet exchange) commercial Internet exchange CLNP (connectionLess network protocol) connectionless network protocol CRC (cyclic redundancy Check) a cyclic redundancy check CSLIP (compressed SLIP) compressed SLI PCSMA (carrier Sense multiple access) carrier Sense multiple access DCE (Data Circuit-terminating Equipment) Data Circuit Termination Device DDN (DONSE DATA NETWORK) DDN DDN DOP header Dual Sign DHCP (Dynamic Host Configuration Protocol) Dynamic Host Configuration Protocol DLPI (DATA LINK Provider Interface) Data Link Provider interface DNS (Domain Name Sys TEM) Domain Name System DSAP (Destination Service Access Point) Destination Service Access Point DSLAM (DSL Access Multiplexer) Digital User Line Access Multiplexer DSS (DIRECT SEQUENCE SPREAD SPECTRUM) Direct Sequence Spread Spectrum DTS (Distributed Time Service) Distributed Time Service DVMRP (distance vector multicast Routing protocol) distance vector multicast Routing protocol EBONE (European IP backbONE) the European IP backbone EOL (end of option list) list of options end EGP (external gateway protocol) exterior gateway protocol EIA (Electronic Industries Association) American Electronics Industry Association FCS (FRME CHECK Sequence) Frame Check Sequence FDDI (Fiber Distributed Data Interface) Fiber Distributed Data Interface FIFO (First in,
