# Presentation: 686791

## Introduction to the RIPE NCCTest Traffic Measurements Service

- Henk Uijterwaal
- RIPE NCC New Projects Group

## RIPE NCCTest Traffic Measurements Service

- Goals of the project (1997):
- One way end-to-end measurements
- As routing is often a-symmetric
- Dedicated measurement device: *Test-box*
- Active measurements
- “Real traffic”
- Follow well defined IETF-IPPM standards
- (2000:) Offer as a “black box service”
*Let’s assume that you have *
*installed a test-box...*

## Parameters that we measure

- Now:
- Routing information
- Router/Interface level
- AS-level
- Delay or Latency
- Packet Loss
- Derived quantities:
- IPDV or Jitter
- Long term trends

- Next:
- Bandwidth
- Derived quantities:
- Packet reordering
- Protocol specific performance
- ...

## Data from a RIPE NCC Test-Box

- “Active”: we warn the user
- Network alarms
- “Passive”: user has to look
- Plots:
- Online:
- WWW interface on the boxes.
- <5 minutes delay
- Offline:
- The next morning, full statistical analysis
- Raw data

## Alarm Messages

- Date: Fri, 19 Apr 2002 05:55:14 GMT
- From: Test traffic project <ttraffic@ripe.net>
- Subject: Testbox ALARM SET on tt01.ripe.net
- TB 69 at 1019195711 ALARM SET
- TB 69 at 1019195711 Long:  2226   2.0/  2.5/ 3.0
-                                     Short:     59 10.0/10.5/11.0
- [...]
- To see how the delays developed in the last days, open this URL: _[http://tt01.ripe.net:10259/cgi-bin/multiple.cgi?](http://tt01.ripe.net:10259/cgi-bin/multiple.cgi?&tt69=213.181.58.101&)_
- _[&tt69=213.181.58.101&](http://tt01.ripe.net:10259/cgi-bin/multiple.cgi?&tt69=213.181.58.101&)__delay=delay&loss=loss&RRD_START=now-2days&RRD_END=now_

## Online Interface

## Full analysis

## Zoom in

## More statistics(day, week, month, or user specified range)

- Packet Delay, #hops*10

- Packet Delay

- Packets Arrived

- Control Plot

- Statistics

## Change in Routing

- Around 14:45
-  _#Hops 12→ 13_
-  _Delay 25ms → 21ms _

- Packet Delay, #hops*10

- Packet Delay

## Routing

- From Mon Apr 15 07:12:41 2002
- To Mon Apr 15 14:36:20 2002
- X.Y.0.238 	g0013.nikrtr.ripe.net
- X.Y.15.44 	amster-dam11.z.z
- X.Y.103.105 	Unknown address
- X.Y.96.114 	nl.uk1.uk.z.z
- X.Y.96.125 	uk.se1.se.z.z
- X.Y.103.118 	nordunet-gw.se1.z.z
- X.Y.252.130 	s-gw.z.z
- X.Y.68.42 	fi-gw.z.z.
- X.Y.252.50 	Unknown address
- X.Y.255.190 	funet6-p21-csc0.z.z
- X.Y.187.46 	csc1-e00-funet6.z.z.
- X.Y.4.105 	tt34

- From Mon Apr 15 14:47:12 2002
- To Tue Apr 16 14:00:07 2002
- X.Y.0.238 	g0013.nikrtr.ripe.net
- X.Y.15.97 	Asd-nr19.NL.z.z
- X.Y.96.81 	r1-Gi1-2-1.12.Ledn-KQ1.z.z.
- X.Y.230.14 	r1-Se0-1-0.0.ffm-KQ1.z.z
- X.Y.230.110 	r1-Se0-3-0.0.hmbg-KQ1.z.z
- X.Y.230.150 	r2-Se1-1-0-0.Sthm-KQ1.z.z
- X.Y.119.213 	sw-gw.z.z
- X.Y.252.130 	s-gw.z.z
- X.Y.68.42 	fi-gw.z.z
- X.Y.252.50 	Unknown address
- X.Y.255.190 	funet6-p21-csc0.z.z
- X.Y.187.46 	csc1-e00-funet6.z.z
- X.Y.4.105 	tt34

- Anonymized and editted to fit on the screen

## Trends

- Delay over 6 months
-  Night  Morning  Afternoon  Evening
- Content provider with new customers
- Intended for capacity planning

- Median Delay

- April 1

- November 1

## IP-Delay Variations or Jitter

- For some applications, the absolute delay does not really matter
- However, packets should arrive with constant intervals
- Voice over IP
- Video on demand
- Metric and Plots

## Bandwidth

- The next measurement to be added
- 2 Parameters:
- C: Total Capacity
- A: Available Bandwidth
- Method based on packet dispersion
- -testing

## How to get these numbers?

- Install a measurement device
- RIPE NCC Test-Box
- 1u or 4u rackmount PC
- GPS antenna
- Roof, window
- 250m of UTP cable
- Plug and play

## Where are the test-boxes located?

- 7 boxes in European Data Grid
- Others at ISP’s, research networks, Major IX’s, etc

## Service model

- You buy the hardware once
- € 2100... 2500
- You get a service contract for the machine
- Maintenance of the machine
- Measurements between your machine and all others
- Analysis of the data by the NCC staff
- Software upgrades, access to new features
- User support
- € 3000/year 1st machine, volume discounts
*All you have to do, is to look at the results*

## Why get this service from the RIPE NCC?

- Neutral and independent organization
- Correct results without a commercial bias
- Access to PoP’s of competitors
- Load sharing

## Major Development Plans

- Interface with NMS
- New measurements
- 2nd NIC in TB
- IPv6 version
- ...

## Conclusion

- Measurements are necessary to get a good overview of end-to-end performance
- Measuring parameters like delay, loss, bandwidth requires a measurement device
- The RIPE NCC test-box is a plug-and-play device to get these numbers, all you have to do is look at the data

## Questions, Discussion, URL’s

- _[http://](http://www.ripe.net/test-traffic)__[www.ripe.net](http://www.ripe.net/test-traffic)__[/test-traffic](http://www.ripe.net/test-traffic)_
- Papers
- Presentations
- “For future test-box hosts”
- European data grid version: _[http://www.ripe.net/cgi-bin/gttm/pod](http://www.ripe.net/cgi-bin/gttm/pod)_
- _[ttm@ripe.net](mailto:ttm@ripe.net)__[ ](file:///C:/Documents%20and%20Settings/Administrator/Local%20Settings/Temp/a)_: TTM Crew @ NCC
- _[tt-wg@ripe.net](mailto:tt-wg@ripe.net)_: RIPE WG on this topic (Majordomo)