[clug] Next CLUG meeting - May 25th 2017 - Traceroute and false diagnoses on networks

Steven Hanley sjh at svana.org
Tue May 9 12:39:07 UTC 2017


Seamus offered this talk up for May and it sounds like it will be fun and
interesting so come and learn/discuss/etc.

See below, 18:00 at Wig and Pen for BeerSig
19:00 at CSIT Building ANU - N101 for CLUG.

Canberra Linux Users Group Meeting - 25th May 2017

 Date:          25th May 2017 (Fourth Thursday of the month)


 Time:         18:00 - 18:55

 Abstract:     It's BeerSIG time!
               'What's BeerSIG?' I hear you ask! BeerSIG is a social
               gathering, and an opportunity to get together with
               like minded people and share a social pint
               or two before the meeting.

 Location:     Wig and Pen, Llewellyn Hall, Canberra School of Music
               Look for the table with a stuffed toy penguin


 Time:         19:00 - 21:00 (or when it finishes)


* An animated explanation of how the packet loss and latency displayed
in the output of traceroute can cause you to make a false diagnosis.

Topics covered:

* Routers and Route Tables

* TTL (Time to Live)

* ICMP Time Exceeded messages

* Traceroute's utilisation of TTL and ICMP Time Exceeded messages to
determine routing paths

* 3 common types of traceroutes - ICMP, UDP and TCP

* The primary and secondary function of routers

* Effects of router prioritisation on the outputs/reports displayed in
traceroute tools

* Routing Paths: Symmetric, Asymmetric and Divergent paths

* Effects of Asymmetric and divergent paths on the outputs/reports
displayed in traceroute tools

Session length:

* 45 Minutes

Content Format:

* Series of diagrams and animations that illustrate each of the topics
mentioned above.


* Seamus Murray

 Venue:        Room N101
               Computer Science and Information Technology Building
               North Road
               The Australian National University

               See http://clug.org.au/ for more directions and a map

 Food/drink:   Pizza and soft drink/juice. Come hungry, and bring
               about $6 to cover the cost of your share if you
               want some.

Steven Hanley sjh at svana.org http://svana.org/sjh/diary
you could try to train me like a pet, you could try to teach me to behave
but i'll tell you, if i haven't learned it yet
i ain't gonna sit, i ain't gonna stay
   Cradle And All - Not A Pretty Girl - Ani

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