Riferimenti

Acronyms

Term

Definition

ACE

Access Control Entry

ACL

Access Control Lists

AD

Administrative Distance

ADSL

Asymmetrical DSL

AIM

Advanced Integration Module

AM

Amplitude Modulation

ANSI

American National Standard Institute

AP

Access Point (to wireless network)

ARP

Address Resolution Protocol

ARPANET

Advanced Research Projects Agency Network

ASICs

Application Specific Integrated Circuits

auto-MDIX

automatic medium-dependent interface crossover

AUX

Auxiliary (port)

BGP

Border Gateway Protocol (a dynamic routing protocol)

BIA

Burned-in Address (IEEE Ethernet MAC address as manufactured)

bps

bit per second

BYOD

Bring Your Own Device: any device, to any content, in any manner

CAM

Content Addressable Memory

CCENT

Cisco Certified Entry Network Technician

CCNA

Cisco Certified Network Associate routing and switching certification

CDP

Cisco Discovery Protocol

CEF

Cisco Express Forwarding

CFI

Canonical Format Identifier (in VLAN)

CGMP

Cisco Group Management Protocol

CHADDR

Client Hardware Address (in DHCPv4 protocol)

CIADDR

Client IP Address (in DHCPv4 protocol)

CIDR

Classless Inter-Domain Routing

Cisco IOS

Cisco Internetwork Operating System

CLI

Command Line Interface

CLM

Cisco License Manager

CoS

Class of Service (priority for voice services)

CPU

Central Processing Unit

CRC

Cyclic Redundancy Check value

CSMA/CA

Carrier Sense Multiple Access/Collision Avoidance. Used in IEEE 802.11 WLAN

CSMA/CD

Carrier Sense Multiple Access/Collision Detection

DAD

Duplicate Address Detection (in ICMPv6 Neighbor Discovery)

DAI

Dynamic ARP inspection

DCE

Data Circuit-terminating Equipment

DHCP

Dynamic Host Configuration Protocol

DNS

Domain Name Service

DRAM

Dynamic Random Access Memory

DS

Differentiated Services. Layer 3 field. Ex ToS. DSCP + ECN

DSCP

Differentiated Services Code Point. First 6 bits of DS

DSL

Digital Subscriber Line

DTE

Data terminal equipment

DTP

Dynamic Trunking Protocol

ECN

Explicit Congestion Notification. Last 2 bits of DS

EGP

Exterior Gateway Protocol RFC 827

EH

Extension Headers. IPv6

eHWIC

Enhanced High-speed WAN Interface Card

EIA

Electronic Industries Alliance; prima del 1997 era Electronic Industries Association; sciolta nel 2011 per dare luogo alle sue componenti, tra cui (vedi) TIA.

EIGRP

Enhanced Interior Gateway Routing Protocol (a routing protocol)

EMI

Electo Magnetic Interferences

EUI-64

Extended Unique Identifier 64 bit (in SLAAC)

EULA

End User License Agreement

FCS

Frame Check Sequence (data link layer, trailer field)

FDDI

Fiber Distributed Data Interface

FIB

Forwarding Information Base

FM

Frequency Modulation

Flash

It’s an erasable and reprogrammable ROM. it holds the Cisco IOS images

FTP

File Transfer Protocol RFC 765

FTTH

Fiber-to-the-home

Gb/s

Gigabit per second == 10^9 bps

GIADDR

Gateway IP Address (in DHCPv4 protocol)

GUI

Graphical user Interface

HPC

High Performance Computing (applications)

HTTP

Hypertext Transfer Protocol

HWIC

High-speed WIC

IAB

Internet Architecture Board

IANA

Internet Assigned Numbers Authority

ICANN

Internet Corporation for Assigned Names and Numbers

ICMP

Internet Control Message Protocol. layer 3 Time Exceeded

ICND1

Interconnecting Cisco Networking Devices part 1 (book/course)

IEEE

Institute of Electrical and Electronics Engineering

IESG

Internet Engineering Steering Group (in IETF)

IETF

Internet Engineering Task Force

IFS

Cisco IOS File System

IGRP

Interior Gateway Routing Protocol (a routing protocol)

IHL

Internet Header Length. layer 3

IID

Interface ID (IPv6 address: host part)

Intf

Interface (used in Cisco courses)

IOS

Cisco Internetwork Operating system

IP

Internet protocol

IPS

Intrusion Prevention System

IPTV

Internet Protocol Television

IRC

Internet Realy Chat

IRSG

Internet Research Steering Group (in IRTF)

IRTF

Internet Research Task Force

IS-IS

Intermediate System-to-Intermediate System (a routing protocol)

ISO

International Organization for Standardization

ISOC

Internet Society

ISP

Internet Service Provider

ISRs

Integrated Service Routers

ISR G2

Cisco Integrated Services Routers Generation Two

ITU

International Telecommunication Union

ITU-T

International Telecommunications Union-Telecommunication Standardization Sector

kb/s

Kilobit per second == 1000 bps

LAN

Local Area Network

LC

Lucent connector (a type of fiber optical media connetor)

LED

Light Emitting Diodes

LLC

Logical Link Control (data link sublayer)

LLDP

Link Layer Discovery Protocol

LOM

lights-out management: one form of out-of-band management. It allows a system administrator to monitor and manage servers and other network-attached equipment by remote control regardless of whether the machine is powered on, or whether an operating system is installed or functional.

MAC

Media Access Control (data link sublayer)

Mb/s

Megabit per second == 1,000,000 bps

MLS

multilayer switching

MMF

Multi mode Fiber

MTU

Maximum Transmission Unit

NA

Neighbor Advertisement message (in ICMPv6)

NAT

Network Address Translation

NAT64

Network Address Translation for IPv6

NAT-PT

Network Address Translation-Protocol Translation (in IPv6, deprecated in favor of NAT64)

NBT

NetBIOS over TCP/IP

NetBIOS

Network Basic Input/Output System (microsoft, layer 3-5: transport-session)

NIC

Network Interface card

NS

Neighbor Solicitation message (in ICMPv6)

NTP

Network Time Protocol

NVRAM

NonVolatile Random Access Memory. it holds the startup config.file

OOB

Out Of Band management (tipically: modem)

OS

Operating Systems

OSPF

Open Shortest Path First

OTDR

Optical Time Domain Reflectometer

OUI

Organization Unique Identifier (IEEE Ethernet MAC address: first 3 bytes)

PAK

Product Activation Key

PAT

Port Address Translation (in NAT)

PID

Product ID

PDU

Protocol Data Unit

PM

Phase Modulation

PoE

Power over Ethernet

POST

Power-On Self-Test program

Pri

user Priority (in VLAN tag)

PSTN

Public Switched Telephon Network

QoS

Quality of Service

RA

Router Advertisement message (in ICMPv6)

RAM

Random Access Memory. it holds IOS, routing & arp tables, running config.file, packet buffer

RFC

Request For Comments

RFI

Radio Frequency Interferences

RIP

Routing Information Protocol (a dynamic routing protocol)

RIP ng

RIP next generation

RIR

Regional Internet Registry

ROM

Read Only Memory. it holds bootstrap startup program, ROM monitor firmware (limited IOS), POST

RA

Router Advertising (ICMPv6)

RPS

Redundant Power System (LED)

RS

Router Solicitation (ICMPv6)

RTU

Right-To-Use (licensing)

SC

Subscriber connector (a type of fiber optical media connetor)

SDM

cisco Switch Database Manager

SDRAM

Synchronous Dynamic RAM

SEC

Security

SFD

Start Frame Delimiter (1 byte after the 7 byte of I3E 802.3 frame preamble)

SLAAC

Stateless Address Autoconfiguration (ICMPv6)

SMF

Single mode Fiber

SN

Serial Number

SP

Service Provider

SSH

Secure Shell

SSID

Service Set IDentifier (wi-fi id)

ST

Straight Tip connector (a type of fiber optical media connetor)

STP

Shielded Twisted-Pair (in copper media)

SVI

Switch Virtual Interface: lack of physical hardware associated with it. Created in software.

TACACS

Terminal Access Controller Access-Control System (login host protocol)

TAG

Technical Advisory Group

Tb/s

Terabit per second == 10^12 bps

TCP

Transmission Control Protocol

TIA

Telecommunication Industry Association; componente di EIA fino al 2011, successivamente organizzazione indipendente

TPID

Tag protocol ID (in VLAN)

ToS

Type of Service. Layer 3. Now DS

TSP

Telecommunication Service Provider

TTL

Time To Limit. layer 3 IPv4

UC

Unified Communications

UDI

Unique Device Identifier

UDP

User Datagram Protocol (connectionless transport protocol)

ULA

Unique Local Address (in IPv6)

UTP

Unshielded Twisted-Pair (in copper media)

VID

VLAN ID

VLAN

Virtual LAN

VoIP

Voice Over IP

VPN

Vitual Private Network

VTP

VLAN trunking protocol

WAN

Wide Area Nework

WIC

WAN Interface Card

WISP

Wireless Internet Service Provider

WLAN

Wireless local area networks

wmask

Wildcard mask (nelle ACL)

WPAN

Wireless Personal Area Network

YIADDR

Your IP Address (in DHCPv4 protocol)