High Precision Based Network Performance Monitoring in critical - - PowerPoint PPT Presentation

High Precision Based Network Performance Monitoring in critical infrastructures

Presented by Rik Boelee

26-9-2019

Agenda

• High Precision Based Network Performance Monitoring
• Why is it needed
• Benefits
• customer cases

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Challenge in assuring five nines network availability

• Network downtime is exceptionally costly for Communications Service Providers (CSPs), topping

some €13 billion each year;

• Telecom operators experience an average of five to six severe outages per year, (nearly one every
• ther month), despite great effort to address problem;
• Current Network Monitoring and Service Assurance solutions on the market have clearly failed to

mitigate the problem - inaccurate, reactive and do not provide the full network visibility;

• Aside from the costs of these “solutions” CSPs spend between 1.5% and 5% of their annual

revenue fixing network issues;

• Customer are demanding stricter SLAs, with latency warranties

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High Precision Network Monitoring

Active (Network Performance Focus) Passive (Application, User Data focus)

Latency Jitter Data Delivery Video and Voice Quality Financial Applications (HFT)

Service Level Agreements

Taps, Packet Brokers

Sniffers

Active Measurements

Core End to End Cloud DCI

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vProbe)

KPI collection Measurements

Precision Based Network Performance Monitoring

Granular high-accuracy visibility into any network

Probe-to-probe measurements

• End-to-End Latency monitoring
• Segmented view
• Ring & Mesh topologies
• NetPrecision test for one-way loss, one-way delay, one-way

delay variation

• TrueTCP Service Activation Testing on L2/L3 and L4-L7
• Easy-to-use Test Topology Designer

Test Topology Designer

Differentiating requirements

• Down to 1 ms sampling rate to catch

microbursts

• Microsecond accurate HW timestamping
• Unique service provisioning capabilities
• Add’l KPIs: MOS & DSCP changed
• LAG & Equal Cost Multipath Routing supported
• Microsecond and ppm level reporting

granularities

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Network Precision measurements

• With Network Precision measurement, you can monitor end-to-end

segments and topologies such as mesh, star and ring.

• TrueTCP RFC 6349 and Y.1564 Service Activation Testing provide you

a toolset for service activation and bandwidth testing on all layers (L2-L7).

• Hardware Timestamp Engine for 1 microsecond accuracy
• L2 to L7 Service Activation Testing and Troubleshooting
• Enables localized and high frequency SNMP polling for granular

bandwidth monitoring etc.

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Continuous active Measurements

NetPrecision TWAMP UDP Echo Y.1731 TCP Connect

Throughput Tests

Y.1564 SAT RFC 2544 TrueTCP (RFC 6349) iPerf3 TCP, UDP, SCTP

Passive monitoring

SNMP Bandwidth collection Generic SNMP data PCAP packet capture

Probe Originated Measurements

Probe Probe vProbe

Precision Test

• High Accuracy L3 measurement
• Segmented
• Mesh/Partial Mesh
• Delay (one-way, two-way), Delay

Variation, Packet Loss, Percentiles

• High PPS

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End-to-End

HQ/Data Center Customer Premises

Hardware probe Hardware probe

End-to-End NetPre Multi-Service Stats NetPre End-to-End | Multi-Service

• NetPre 1 (VLAN 100, DSCP0)
• NetPre 2 (VLAN 200, DSCP46)
• NetPre 3 (VLAN 300, DSCP48)
• NetPre 4 (VLAN 400, DSCP52)
• One-Way Latency
• One-Way Loss
• One-Way Delay Variation
• Two-Way Metrics

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Topologies

L a t e n cy M a n a g e me n t

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Problems Providers are trying to solve

• Need to know better than customers about outages
• Today L2VPN customers might see outage (BFD/LACP) that

you’re not aware

• Need to know how LSP Metric changes affect whole network
• Did it make things better or worse when looking a big picture
• Need to know how new software and new hardware affects

network performance

• Need to have high-level simple single number to look over

time, to ensure network quality is stable or getting better

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Additional use cases

• Use a good solution high precision data for customer portal reporting
• Use performance data to trigger LSP reroutes, when performance issues happen

(REST/RESTCONF APIs)

• Optimize buffering – since knowing precisely what’s the “Jitter” in the network
• Use virtual probes in major datacenters, also to have coarse visibility to external

networks

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Economical benefits

• Protecting business (avoid churn), one major customer annual revenue can be

millions

• Building trust, visualizing from customer perspective (outage, delay, jitter)
• Quote from global transit provider: Customer portal important for a customer with 35-40

sites, annual revenue 2-3M€

• Saves personnel cost

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Use Cases

NetPre: Extensive Latency Management End-to-End: Cloud Connectivity, Business

IP/Ethernet, Data Center Interconnect...

Core Mesh: Provider Core, Data Center

Interconnect

Ring & Segmented: Metro / Access, Data

Center Top of Racks

Probe-to-Probe One-Way Visibility

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Customer case: Problem Statement Backbone Network Monitoring

• Part of a Tier-1 operator group
• Problem Statement
• Need to know better than customers about outages
• Today L2VPN customers might see outage

(BFD/LACP) that the service provider is not aware of

• Cannot discriminate if it was customer or provider

caused the issue

• Need to know how IP/MPLS Metric changes affect whole

network

• Did it make things better or worse when looking a big

picture

• Need to know how new software and new hardware affects

network performance

• Need to have high-level simple single number to look over

time, to ensure network quality is stable or getting better

Do Not Operate the Network Blind

• Customer was not

satisfied with inbuilt router measurements because they were inaccurate and unreliable

• Management

solution did not provide the necessary view to the whole network Example:

• Experienced

quality issues but packet loss was reported to be zero

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Customer case: Validation Backbone Network Monitoring

ams -> chcg L2VPN Latency Creanord Indicative ams -> chcg L2VPN PacketLoss Creanord Indicative Date (Daily averaged) Latency (ms) Latency (ms) Date (Daily averaged) PacketLoss (%) PacketLoss (%) 11.2.2018 107,9046833 100,5173611 11.2.2018 12.2.2018 108,1344165 101,4479167 12.2.2018 0,000127315 13.2.2018 108,2146514 99,45138889 13.2.2018 8,10185E-05 14.2.2018 107,9063917 102,0590278 14.2.2018 0,000300926 15.2.2018 107,9068383 100,8090278 15.2.2018 16.2.2018 107,9068715 101,0798611 16.2.2018 17.2.2018 107,9063826 101,7708333 17.2.2018 18.2.2018 107,9064528 101,09375 18.2.2018 19.2.2018 107,9073111 100,1875 19.2.2018 0,000150463 20.2.2018 107,9119171 102,1840278 20.2.2018 21.2.2018 107,1188285 105,8680556 21.2.2018 0,03650463 22.2.2018 110,540758 104,1805556 22.2.2018 23.2.2018 116,2365895 103,6631944 23.2.2018 0,000138889 24.2.2018 116,4771983 102,0034722 24.2.2018 9,25926E-05 25.2.2018 116,2009374 102,3576389 25.2.2018 0,002060185 26.2.2018 116,0155176 103,2083333 26.2.2018 0,002071759 27.2.2018 114,8006412 102,9166667 27.2.2018 0,000173611 28.2.2018 108,3591696 112,3541667 28.2.2018 0,000162037 1.3.2018 116,5418087 109,3645833 1.3.2018 2.3.2018 115,9532056 106,7881944 2.3.2018 0,57210223

10% difference in accuracy (latency) In business critical application ~10ms really matters Existing product was showing 0% packet loss continuously

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ams -> chcg L2VPN TrueJitter Creanord (owfeipdvavg) Indicative ams -> chcg L2VPN MaxJitter Creanord (owfeipdvmax) Indicative Date (Daily averaged) TrueJitter (µs) TrueJitter (µs) Date (Daily averaged) MaxJitter (µs) MaxJitter (µs) 11.2.2018 2,584953705 164,656309 11.2.2018 11,67812502 944,4444444 12.2.2018 2,774305558 147,2952257 12.2.2018 12,98460648 937,5 13.2.2018 2,781944443 152,5949271 13.2.2018 13,06932874 958,3333333 14.2.2018 2,751504627 154,6051597 14.2.2018 18,10277783 934,0277778 15.2.2018 2,814814816 154,2396563 15.2.2018 13,25613425 944,4444444 16.2.2018 2,714004629 151,498441 16.2.2018 12,55879632 965,2777778 17.2.2018 2,660995369 157,5291354 17.2.2018 11,79282402 958,3333333 18.2.2018 2,594328703 140,1680417 18.2.2018 11,58310184 930,5555556 19.2.2018 2,660185191 164,2908368 19.2.2018 12,78483797 937,5 20.2.2018 2,751736113 168,4940313 20.2.2018 13,03194442 975,6944444 21.2.2018 2,71613757 156,9808819 21.2.2018 16,58849211 954,8611111 22.2.2018 2,676620372 161,0013785 22.2.2018 15,19537034 954,8611111 23.2.2018 2,639351851 156,7981389 23.2.2018 15,66712965 954,8611111 24.2.2018 2,553703704 156,9808924 24.2.2018 11,92037035 972,2222222 25.2.2018 2,474652779 150,4019444 25.2.2018 11,85937501 951,3888889 26.2.2018 2,693287036 152,9604063 26.2.2018 13,21921296 958,3333333 27.2.2018 2,757986114 142,7265139 27.2.2018 13,12812497 979,1666667 28.2.2018 2,802199079 147,2952118 28.2.2018 13,0806713 961,8055556 1.3.2018 2,879745375 148,9399375 1.3.2018 16,02349543 965,2777778 2.3.2018 2,978977933 145,8332465 2.3.2018 15,13822801 968,75

Almost 50 X difference in jitter Almost 70 X difference in jitter (max)

Customer case: Validation Backbone Network Monitoring

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MBH/MBS and IP Access Centralized Performance Monitoring

Cost-optimized multi-vendor monitoring

Centralized test generator

• TWAMP
• UDP Echo
• L2 Loopback
• ICMP Echo
• Y.1564 SAT

BTS with test reflector Router / switch with test reflector SFP with test reflector, SAT loopback and traffic meter

Multi-Vendor Compatibility ...

NODE vProbe)

Central/Controller site KPI collection Measurements

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NFV Application: vCPE Monitoring with vProbe

Data Center Branch/Remote site Service Provider Internet/Private IP/MPLS Network

vCPE

Network Management

vCPE

HQ/Campus

vCPE

Data Centers

SDN/SD-WAN Controller

Automated Activation

• Prior to setup
• Test L2/L3 throughput (Y.1564) &

per CoS quality for assured performance

• Run TrueTCP (RFC 6349) to

ensure e.g. middleboxes can handle TCP connections Automated Continuous Monitoring

• Continuous synthetic monitoring
• n L2/L3 (delay, loss...) with

carrier-grade accuracy

• Closed-loop feedback to SDN

controller Troubleshooting

• vProbe detects threshold

crossing event (delay, loss, ...)

• Controller is informed with REST

API

• Rerouting or automated

additional troubleshooting is initiated by controller

Use cases: vCPE monitoring

Full virtualized service lifecycle assurance

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End-to-End Cloud and DCI Assurance

Multiple use cases for Data Center provider:

• End-to-End Cloud Latency Monitoring and SLA
• Data Center internal network quality
• Virtualization, Switching Fabric, DC Edge
• Data Center WAN connectivity via different service providers
• DCI (Data Center Interconnection) monitoring

Customer Virtualization Platform 1 Customer Virtualization Platform 2 Customer Virtualization Platform 3 Customer Fabric Switches CreaNODE 500 HQ Remote Office Operator 1 Operator 2 Operator 3

vProbes

Complete Cloud Service Assurance

Remote Office

End-to-End DC internal DC connectivity DC to DC

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Highest Value with All-in-One Service Assurance

Holistic, cost-effective multi-vendor network monitoring and SLA reporting solutions

Probe & Analytics

Proprietary equipment troubleshooting with limited functionalities

Inbuilt probing

No data analytics, no network intelligence nor SLA reporting

Generic Probes

No control on the input data quality, no troubleshooting tools

Analytics only

Analytics only Generic Probes

Measurement probe functionalities

Probe & Analytics Inbuilt probing

Performance & SLA monitoring functionalities

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SAT Reports

Portal SLA Management

Service Provider View

Maximize the User Experience

Customer View Drilldown Monthly SLA Reports

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Tucana Telecom N.V./S.A. Miraeusstraat 10 B-2018 Antwerp Belgium Tel +32 3 23 76 326 info@tucana.com Tucana Telecom S.A.S. 129 – 137 Bouleverd Carnet F-78110 Le Vésinet France Tel +33 1 30 09 20 90 Tucana Telecom GmbH

• Ickstattstr. 1

D-80469 Germany Tel +49 89 54 03 09 69 Tucana Telecom B.V. Minervum 7446K NL-4817 ZG Breda Netherlands Tel +31 76 579 41 11 www.tucana.com

26-9-2019

Thank you for your attention