AH = Authentication Header

co_common = a type of ROHC packet defined by the TCP profile for transmitting changes larger than seq_X or rnd_X packet types but smaller than IR or IR-DYN packet types

CSRC = Contributing SouRCe, a field of the RTP header

ESP = Encapsulating Security Payload

FO = First Order, a ROHC compressor state

Full Context, a ROHC decompressor state

IANA = the Internet Assigned Numbers Authority, the group that assigns ROHC profiles numbers

IEEE = the Institute of Electrical and Electronics Engineers, the group that allocated an Ethernet number to the ROHC protocol

IETF = the Internet Engineering Task Force, the group that standardized the ROHC protocol

IP = Internet Protocol

IP-ID = the IDentification field of the IPv4 header

IPv4 = Internet Protocol version 4

IPv6 = Internet Protocol version 6

IR = Initialization and Refresh, a ROHC compressor state and a ROHC packet type

IR-DYN = Initialization and Refresh DYNamic, a ROHC packet type

LSB = Least Significant Bits, a ROHC encoding scheme

No Context, a ROHC decompressor state

Normal, a ROHC packet type

O-mode = bidirectional Optimistic mode, a ROHC mode of operation

R-n = packet n for bidirectional Reliable mode, a ROHC packet type that is available in this mode

RFC = Request For Comments, a standard defined by the IETF

R-mode = bidirectional Reliable mode, a ROHC mode of operation

rnd_X = a type of ROHC packet defined by the TCP profile for transmitting changes in streams using IP-ID with random behavior (or not IP-ID), X is an integer in range [1-8]

ROHC = RObust Header Compression

RTP = Real-time Transport Protocol

SDVL = Self-describing variable-length, a ROHC encoding scheme

seq_X = a type of ROHC packet defined by the TCP profile for transmitting changes in streams using IP-ID with sequential or sequential-swapped behavior, X is an integer in range [1-8]

SN = Sequence Number, the RTP Sequence Number field or an incremental Sequence Number for non-RTP profiles

SO = Second Order, a ROHC compressor state

Static Context, a ROHC decompressor state

TCP = Transport Control Protocol

TS = TimeStamp, the RTP Timestamp field

UDP = User Datagram Protocol

UDP-Lite = Lightweight User Datagram Protocol

U-mode = Unidirectional mode, a ROHC mode of operation

UO-n = packet n for Unidirectional & bidirectional Optimistic modes, a ROHC packet type that is available in these 2 modes

UOR-n = packet n for Unidirectional, bidirectional Optimistic & bidirectional Reliable modes, a ROHC packet type that is available in these 3 modes

W-LSB = Window-based Least Significant Bits, a ROHC encoding scheme