Packet Switching

Packet switching is a digital network communications method that groups all transmitted data, irrespective of content, type, or structure into suitably-sized blocks, called packets.

The network over which packets are transmitted is a shared network which routes each packet independently from all others and allocates transmission resources as needed. The principal goals of packet switching are to optimize utilisation of available link capacity, minimize response times and increase the robustness of communication. When traversing network adapters, switches and other network nodes, packets are buffered and queued, resulting in variable delay and throughput, depending on the traffic load in the network.

Network resources are managed by statistical multiplexing or dynamic bandwidth allocation in which a physical communication channel is effectively divided into an arbitrary number of logical variable-bit-rate channels or data streams. Each logical stream consists of a sequence of packets, which normally are forwarded by a network node asynchronously using first-in, first-out buffering. Alternatively, the packets may be forwarded according to some scheduling discipline for fair queuing or for differentiated or guaranteed quality of service, such as pipeline forwarding or time-driven priority (TDP). Any buffering introduces varying latency and throughput in transmission. In case of a shared physical medium, the packets may be delivered according to some packet-mode multiple access scheme.

Packet Switched Networks are now pervasive as they are being utilised to support core telecommunications, 3G/4G mobile communications and of course LAN/WAN solutions. Extensive testing is required to test all aspects from the physical media through protocol and routing capability to network security.

Livingston provides a range of equipment that can help installers and maintenance engineers and network operators measure and therefore manage their network service levels and performance:

Livingston advantages of renting

For further information please see the following information from two of our key suppliers:

Below is listed some of the equipment that we have available. If you cannot find what you need, please give us a call, as we are very interested in finding the right solution to meet your needs.

Packet Switching


Agilent Technologies N4010A

2.4GHz & 5GHz WLAN Tester

Agilent Technologies N5541A

N2X Network Performance Tester

Agilent Technologies N5551A

N2X 4-port 10/100/1000 Electrical/Optical Interface

Agilent Technologies N5555A

N2X Packets and Protocols Test Solution

Anritsu 5610-000-UTA

UTA module with 10GigE LAN application

Anritsu 5700-001-GIGE

CMA5000 GigE Module

Anritsu CMA3000

Portable all-in-one tester

Anritsu CMA5000

Telecomm Analyser Mainframe

Anritsu CMA5000 10GigE

10 GigE LR Module

Anritsu MD1230A

Data Quality Analyser Mainframe

Anritsu MD1230B

IP/Ethernet/POS Analyzer

Anritsu MD1231A

IP Network Analyser Mainframe

Anritsu MP1590A

Network Performance Tester

Anritsu MP1800A

Signal Quality Analyzer

Anritsu MT8850A

Bluetooth Test Set

Anritsu MT8852A

Bluetooth Test Set with Audio

Anritsu MT8860C

WLAN Test Set

Anritsu MU120101A

Ethernet Module for MD1230A (10M/100M)

Anritsu MU120102A

Gigabit Ethernet Module for MD1230A

Anritsu MU120111A

10/100M Ethernet Module

Anritsu MU120112A

Gigabit Ethernet Module

Anritsu MU120122A

Gigabit Ethernet Module

Anritsu MU120138A

4-ports 10GbE Module

Calnex Paragon Sync

In-line Impairment Solution

ConnTech 2000

ESCON Analyser

Digital Lightwave NIC Plus + 10GigE

SONET SDH Transmission Analyser with Ethernet

EXFO AXS-200/635

XDSL2 and Ethernet Test Set

EXFO AXS-200/850

Ethernet Test Set

EXFO AXS-200/855

Multilayer Access Test Set


Portable Mainframe

EXFO FTB-400-4

Universal Test Platform 4 Slot

EXFO FTB-400-8

FTB-400 with 8 Back Universal Test Plat

EXFO FTB-500-8

Universal Test Platform 8 Slot


STM64 module with optional 10GigE, 1,2,4 &10G FC


Gigabit Ethernet Test Module 10/100/1000 Base


100G/40G Ethernet Test Module—FTB-85100G Packet Blazer


Dual Port 10/100/1000 Ethernet Tester


SAN Test Module


10G Fibre Channel Characterisation Module


IP Services Test Head (1GBE)


IP Services Test Head (10GE)

Fluke Networks Etherscope

Network Assistant

Fluke Networks Etherscope II

LAN and WLAN Analyser

Frederick Engineering ParaScope GigE

Advanced Test Set for 10/100/Gigabit Ethernet

Ixia LSM1000XMV16-01

16 Port Dual-PHY 10/100/1000 Load Module

Ixia LSM1000XMV8--01

8 Port Dual-PHY 10/100/1000 Load Module

Ixia XM2

2 Slot Mainframe

JDSU C1000

Multi Services Application Module, Single port 10 Mb/s to 10 Gb/s & STM-1 to STM-64

JDSU C1004

Dual port(one port 10 Mb/s to 10 Gb/s, one port 10 Mb/s to 2.5 Gb/s) Module


STM-1/4/16/64 & 1/10Gb Ethernet Module

JDSU C8424

10Gb Ethernet, 1310/1550nm Module

JDSU C8525

STM-1/4/16/64 + 1Gb Ethernet Analyzer

JDSU C8530

STM-1/4/16/64 + 1/10Gb Ethernet Analyzer

JDSU C8542

10 Gigabit LAN/WAN Module


10/100/1000 Ethernet Test Module


Gigabit Ethernet Performance Analyser


Handheld Service Tester


MTS-4000 Multiple Services Test Platform

JDSU MTS-6000A (T-Berd-6000A)

Compact Network Test Platform




Test Solution Supporting 40GE/100GE/OTU4


Optical Network Tester with 2.5/2.7 & 10/10.7 G Modules


Optical Network Tester Mainframe (Jitter)


Optical Network Tester Mainframe

JDSU SmartClass - Ethernet

1-Port 10/100/1000 & Gig-E Tester

JDSU SmartClass Home Full

VDSL & HPNA Tester

JDSU SmartClass TPS

Triple-Play Services Tester

Navtel Communications 01-105950A

Interwatch M7 Portable Platform

Pendulum Instruments AB 2261

Wireless LAN Spectrum Analyser

Radcom Performer

High Performance Protocol Analyser

Sage Instruments 925

Handheld Voice Service Tester

Spirent Communications Avalanche 290

Portable layer 4-7 test solution

Spirent Communications CM-1G-D12

HyperMetrics 12-port Gigabit Ethernet Test Modules

Spirent Communications CM-1G-D4

HyperMetrics 4-port Gigabit Ethernet Test Modules

Spirent Communications CV-10G-S2

HyperMetrics™ CV 2-PORT 10 Gigabit Ethernet Test Module

Spirent Communications EDM-1003B

12 Port Dual Media 10/100/1000 Interface Module

Spirent Communications EDM-2001B

4 Port Dual Media Gigabit Ethernet Module

Spirent Communications EDM-2003B

10/100/1000 Dual Media, 12 port Test Module

Spirent Communications FBC-3602A

Fibre Channel 1G/2G 2-port module

Spirent Communications GEM

M1 Ethernet Network Impairment Emulator

Spirent Communications LAN-3101A

10/100 Mbps Ethernet SmartMetrics Card

Spirent Communications LAN-3101B

10/100 Mbps Ethernet SmartMetrics Card

Spirent Communications LAN-3201B.

1 Port GigE Smartmetrics Module

Spirent Communications LAN-3201C

1 Port GigE Smartmetrics Module

Spirent Communications LAN-3310A

2 Port GigE XD Smartmetrics Module

Spirent Communications LAN-3320A

Gigabit Ethernet 10/100/1000 Base 2-port Smart Metric module

Spirent Communications LAN-3321A

Dual Port TeraMetrics 10/100/1000 Base Module

Spirent Communications LAN-3324A

Smartmetrics XD 4 port GigE module

Spirent Communications MSA-2001B

10-Gigabit Ethernet Multiple MSA Test Solution

Spirent Communications SMB 6000C

Smartbit 12 slot Mainframe

Spirent Communications SMB-600

Smartbits 600 Mainframe

Spirent Communications SPT-2000

Portable High End (10) Gig/Ethernet performance test system

Spirent Communications SPT-9000A

TestCenter 9U Mainframe

Spirent Communications XFP-2001B

Single Port 10GigE Interface Module

Spirent Communications XFP-3730A

Smartmetrics 10 GigE 1 Port Module

Spirent Communications XFP-3731

Terametrics 10 GigE Single Port Module

Spirent Communications XLW-3720A

Smartmetrics 10 Gigabit Ethernet Module

Spirent Communications XLW-3721A

1 Port 10 GigE Terametrics Module

Sunrise Telecomm SSMTT-28B

Sunset MTT 10/100 ethernet module

Sunrise Telecomm SSMTT-29B

Gigabit Ethernet Module

Sunrise Telecomm SSMTT-29E

Gigabit Ethernet Module

Sunrise Telecomm SSMTT-30Z

Fibre Channel Module 4G

Sunrise Telecomm STT

Portable Scalable Multi Technology Test System

Sunrise Telecomm Sunset MTT-29

Portable Gigabit Ethernet Tester

Tektronix TF-GBE-ATP

Ethernet Test Package

Trend Communications Aurora Tango

Gigabit Ethernet Tester

Trend Communications Unipro GbE

Gigabit Ethernet Tester