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:
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
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Agilent Technologies-N4010A2.4GHz & 5GHz WLAN Tester |
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Agilent Technologies-N5541AN2X Network Performance Tester |
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Agilent Technologies-N5551AN2X 4-port 10/100/1000 Electrical/Optical Interface |
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Agilent Technologies-N5555AN2X Packets and Protocols Test Solution |
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Anritsu-5610-000-UTAUTA module with 10GigE LAN application |
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Anritsu-5700-001-GIGECMA5000 GigE ModuleThe sale price is $ 2240 |
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Anritsu-CMA3000Portable all-in-one testerThe sale price is $ 5300 |
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Anritsu-CMA5000Telecomm Analyser MainframeThe sale price is $ 5310 |
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Anritsu-CMA5000 10GigE10 GigE LR Module |
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Anritsu-MD1230AData Quality Analyser Mainframe |
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Anritsu-MD1230BIP/Ethernet/POS Analyzer |
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Anritsu-MD1231AIP Network Analyser Mainframe |
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Anritsu-MP1590ANetwork Performance Tester |
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Anritsu-MP1800ASignal Quality Analyzer |
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Anritsu-MT8850ABluetooth Test Set |
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Anritsu-MT8852ABluetooth Test Set with Audio |
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Anritsu-MT8860CWLAN Test Set |
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Anritsu-MU120101AEthernet Module for MD1230A (10M/100M) |
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Anritsu-MU120102AGigabit Ethernet Module for MD1230A |
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Anritsu-MU120111A10/100M Ethernet Module |
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Anritsu-MU120112AGigabit Ethernet Module |
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Anritsu-MU120122AGigabit Ethernet Module |
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Anritsu-MU120138A4-ports 10GbE Module |
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Calnex-Paragon SyncIn-line Impairment Solution |
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ConnTech-2000ESCON AnalyserThe sale price is $ 2600 |
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Digital Lightwave-NIC Plus + 10GigESONET SDH Transmission Analyser with Ethernet |
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EXFO-AXS-200/635xDSL2 and Ethernet Test Set |
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EXFO-AXS-200/850Ethernet Test Set |
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EXFO-AXS-200/855Multilayer Access Test SetThe sale price is $ 6230 |
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EXFO-FTB-200Portable Mainframe |
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EXFO-FTB-400-4Universal Test Platform 4 Slot |
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EXFO-FTB-400-8FTB-400 with 8 Back Universal Test PlatThe sale price is $ 4030 |
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EXFO-FTB-500-8Universal Test Platform 8 Slot |
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EXFO-FTB-8130NGESTM64 module with optional 10GigE, 1,2,4 &10G FC |
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EXFO-FTB-8510Gigabit Ethernet Test Module 10/100/1000 BaseThe sale price is $ 4160 |
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EXFO-FTB-85100G100G/40G Ethernet Test Module—FTB-85100G Packet Blazer |
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EXFO-FTB-8510BDual Port 10/100/1000 Ethernet TesterThe sale price is $ 4860 |
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EXFO-FTB-8520SAN Test Module |
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EXFO-FTB-853510G Fibre Channel Characterisation Module |
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EXFO-RTU-310IP Services Test Head (1GBE) |
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EXFO-RTU-310GIP Services Test Head (10GE) |
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Fluke Networks-EtherscopeNetwork AssistantThe sale price is $ 5100 |
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Fluke Networks-Etherscope IILAN and WLAN Analyser |
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Fluke Networks-Optiview Pro GigENetwork Analyser |
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Frederick Engineering-ParaScope GigEAdvanced Test Set for 10/100/Gigabit Ethernet |
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Ixia-LSM1000XMV16-0116 Port Dual-PHY 10/100/1000 Load Module |
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Ixia-LSM1000XMV8--018 Port Dual-PHY 10/100/1000 Load Module |
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Ixia-XM22 Slot Mainframe |
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JDSU-C1000Multi Services Application Module, Single port 10 Mb/s to 10 Gb/s |
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JDSU-C1004Dual port(one port 10 Mb/s to 10 Gb/s, one port 10 Mb/s to 2.5 Gb/s) Module |
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JDSU-C8015TMSTM-1/4/16/64 & 1/10Gb Ethernet Module |
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JDSU-C842410Gb Ethernet, 1310/1550nm Module |
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JDSU-C8525STM-1/4/16/64 + 1Gb Ethernet Analyzer |
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JDSU-C8530STM-1/4/16/64 + 1/10Gb Ethernet Analyzer |
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JDSU-C854210 Gigabit LAN/WAN Module |
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JDSU-CHST-M3510/100/1000 Ethernet Test Module |
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JDSU-FST-2802Gigabit Ethernet Performance Analyser |
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JDSU-HST-3000Handheld Service Tester |
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JDSU-MTS-4000MTS-4000 Multiple Services Test Platform |
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JDSU-MTS-6000A (T-Berd-6000A)Compact Network Test Platform |
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JDSU-MTS-8000Mainframe |
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JDSU-MTS-8000 + 10Gig Ethernet10GigE Test Set |
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JDSU-ONT-100GTest Solution Supporting 40GE/100GE/OTU4 |
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JDSU-ONT-50Optical Network Tester with 2.5/2.7 & 10/10.7 G Modules |
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JDSU-ONT-503Optical Network Tester Mainframe (Jitter)The sale price is $ 52690 |
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JDSU-ONT-506Optical Network Tester Mainframe |
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JDSU-SmartClass - Ethernet1-Port 10/100/1000 & Gig-E Tester |
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JDSU-SmartClass Home FullVDSL & HPNA Tester |
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JDSU-SmartClass TPSTriple-Play Services Tester |
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Navtel Communications-01-105950AInterwatch M7 Portable PlatformThe sale price is $ 4160 |
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Pendulum Instruments AB-2261Wireless LAN Spectrum Analyser |
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Radcom-PerformerHigh Performance Protocol Analyser |
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Sage Instruments-925Handheld Voice Service TesterThe sale price is $ 7030 |
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Spirent Communications-Avalanche 290Portable layer 4-7 test solution |
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Spirent Communications-CM-1G-D12HyperMetrics 12-port Gigabit Ethernet Test Modules |
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Spirent Communications-CM-1G-D4HyperMetrics 4-port Gigabit Ethernet Test Modules |
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Spirent Communications-CV-10G-S2HyperMetrics™ CV 2-PORT 10 Gigabit Ethernet Test Module |
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Spirent Communications-EDM-1003B12 Port Dual Media 10/100/1000 Interface Module |
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Spirent Communications-EDM-2001B4 Port Dual Media Gigabit Ethernet Module |
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Spirent Communications-EDM-2003B10/100/1000 Dual Media, 12 port Test Module |
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Spirent Communications-FBC-3602AFibre Channel 1G/2G 2-port moduleThe sale price is $ 4780 |
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Spirent Communications-GEMM1 Ethernet Network Impairment Emulator |
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Spirent Communications-LAN-3101A10/100 Mbps Ethernet SmartMetrics CardThe sale price is $ 2640 |
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Spirent Communications-LAN-3101B10/100 Mbps Ethernet SmartMetrics CardThe sale price is $ 2640 |
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Spirent Communications-LAN-3201B.1 Port GigE Smartmetrics ModuleThe sale price is $ 4030 |
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Spirent Communications-LAN-3201C1 Port GigE Smartmetrics ModuleThe sale price is $ 4030 |
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Spirent Communications-LAN-3310A2 Port GigE XD Smartmetrics ModuleThe sale price is $ 5410 |
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Spirent Communications-LAN-3320AGigabit Ethernet 10/100/1000 Base 2-port Smart Metric module |
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Spirent Communications-LAN-3321ADual Port TeraMetrics 10/100/1000 Base ModuleThe sale price is $ 9580 |
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Spirent Communications-LAN-3324ASmartmetrics XD 4 port GigE module |
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Spirent Communications-MSA-2001B10-Gigabit Ethernet Multiple MSA Test Solution |
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Spirent Communications-Smartbits 6000B12 Slot MainframeThe sale price is $ 9020 |
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Spirent Communications-SMB 6000CSmartbit 12 slot Mainframe |
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Spirent Communications-SMB-600Smartbits 600 MainframeThe sale price is $ 22550 |
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Spirent Communications-SPT-2000Portable High End (10) Gig/Ethernet performance test system |
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Spirent Communications-SPT-9000ATestCenter 9U Mainframe |
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Spirent Communications-XFP-2001BSingle Port 10GigE Interface Module |
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Spirent Communications-XFP-3730ASmartmetrics 10 GigE 1 Port Module |
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Spirent Communications-XFP-3731Terametrics 10 GigE Single Port Module |
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Spirent Communications-XLW-3720ASmartmetrics 10 Gigabit Ethernet Module |
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Spirent Communications-XLW-3721A1 Port 10 GigE Terametrics ModuleThe sale price is $ 17900 |
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Sunrise Telecomm-SSMTT-28BSunset MTT 10/100 ethernet module |
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Sunrise Telecomm-SSMTT-29BGigabit Ethernet Module |
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Sunrise Telecomm-SSMTT-29EGigabit Ethernet Module |
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Sunrise Telecomm-SSMTT-30ZFibre Channel Module 4G |
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Sunrise Telecomm-STTPortable Scalable Multi Technology Test System |
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Sunrise Telecomm-Sunset MTTColour Chassis |
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Sunrise Telecomm-Sunset MTT-29Portable Gigabit Ethernet Tester |
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Tektronix-TF-GBE-ATPEthernet Test Package |
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Trend Communications-Aurora TangoGigabit Ethernet TesterThe sale price is $ 2120 |
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Trend Communications-MultiproIP Test Platform |
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Trend Communications-Unipro GbEGigabit Ethernet Tester |
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Trend Communications-Unipro VoIPVoIP Tester |
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