IMPP, IMAP, IRC, ISP, NTP, POP3, Radius |
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Instant Messaging & Presence protocols - have recently emerged as a new medium of communications over the Internet. Presence is a means for finding, retrieving, and subscribing to changes in the presence information (e.g. 'online' or 'offline') of other users. Instant messaging is a means for sending small, simple messages that are delivered immediately to online users.
Internet Message Access Protocol version 4 revision 1 - allows a client to access and manipulate electronic mail messages on a server. IMAP4 permits manipulation of remote message folders, called mailboxes, in a way that is functionally equivalent to local mailboxes. IMAP4 also provides the capability for an offline client to resynchronize with the server.
IP Device Control - is a family of protocols, components of which can be used individually or together to perform connection control, media control, and signaling transports. It fulfills a need for one or more protocols to control gateway devices which sit at the boundary between the circuit- switched telephone network and the internet and terminate circuit- switched trunks.
8 | 13 | 16 | 24 | 32 |
RadiusPCC | PKT | Ver | Packet | |
Identifier | ||||
Sequence number | Next Received (Nr) | |||
Attributes : | ||||
Structure of the IPDC block in 32 bit lines. |
Internet Relay Chat - supports a worldwide network of servers and clients, and is stringing to cope with growth. It is a text-based protocol, with the simplest client being any socket program capable of connecting to the server.
Internet Security Association and Key Management Protocol - defines procedures and packet formats to establish, negotiate, modify and delete Security Associations (SA). SAs contain all the information required for execution of various network security services, such as the IP layer services (such as header authentication and payload encapsulation), transport or application layer services, or self-protection of negotiation traffic.
8 | 12 | 16 | 24 | 32 |
Initiator cookie (8 Bytes) | ||||
Responder cookie (8 Bytes) |
||||
Next payload | MjVer | MnVer | Exchange | Flags |
Message ID | ||||
Length | ||||
Structure of the ISAKMP block in 32 bit lines. |
Information Sharing Protocol - is a transport mechanism for the applications running on top of this version (version 3) of the protocol. ISP is divided into a Master Protocol TRH and various sub protocols: CM, SDM, SCM, DAM, BRM and MGM.
8 |
Length (2 Bytes) |
Message ID |
ISP transport mechanism. |
Network Time Protocol - is a time synchronization system for computer clocks through the Internet network. It provides the mechanisms to synchronize time and coordinate time distribution in a large, diverse internet operating at rates from mundane to light wave. It uses a returnable time design in which a distributed sub network of time servers, operating in a self-organizing, hierarchical master-slave configuration, synchronize logical clocks within the sub network and to national time standards via wire or radio.
2b | 3b | 3b | 7 bits | 6 bits | 7 bits |
LI | VN | Mode | Stratum | Poll | Precision |
Structure of the NTP block. |
Post Office Protocol version 3 - is intended to permit a workstation to dynamically access a maildrop on a server host. It is usually used to allow a workstation to retrieve mail that the server is holding for it. POP3 transmissions appear as data messages between stations. The messages are either command or reply messages.
Radius - is a protocol which manages dispersed serial line and modem pools for large numbers of users.
8 | 16 | 32 |
Code | Identifier | Length |
Authenticator (16 Bytes) : : | ||
Structure of the RADIUS block in 32 bit lines. |
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Citing of this page: Radic, Drago. " Informatics Alphabet " Split-Croatia. {Date of access}; https://informatics.buzdo.com/specific/file. Copyright © by Drago Radic. All rights reserved. | Disclaimer |