5 Aug
2015
5 Aug
'15
3:16 p.m.
Hi Guys,
So i've approached the committee to run a networking presentation of
some form. However before I begin planning for this, i'd like understand
what knowledge is lacking out there in the group. As i'm sure you can
imagine, there are a lot of parts to networking.
My background so you can see if anything here interests you -
I have a good ISP background, in which I have worked on networks
both small and large.
Through this I have a good knowledge of DSL based services and GPON
(This is what NBN runs on).
Broadband and PPP Services inc PPPoE and PPPoL2TP
I also have a good knowledge of routing protocols such as IS-IS and
BGP, and MPLS.
Obviously throughout this I have general networking knowledge such
as, subnetting, network design, troubleshooting, Quality of Service etc.
Now the point of this email is that I want to understand what you want.
Below are some ideas that I have for topics, but feel free to comment or
add any that you would like.
- Networking 101 - Fundamentals including subnetting, OSI Model, packet
analysis and troubleshooting
- Networking in the home. Internal networking, ADSL networking
- Quality of Service - Packet marking, shaping and queuing
Let me know your thoughts,
Cheers,
Fraser
5 Aug
5 Aug
4 p.m.
On 05/08/15 15:16, Fraser McGlinn wrote:
...
Now the point of this email is that I want to
understand what you want.
Below are some ideas that I have for topics, but feel free to comment or
add any that you would like.
- Networking 101 - Fundamentals including subnetting, OSI Model, packet
analysis and troubleshooting
- Networking in the home. Internal networking, ADSL networking
- Quality of Service - Packet marking, shaping and queuing
The area I have most need of is how to configure my home network to
handle IPV6.
I have a mix of IPV6-capable linux and win* and other pure IPV4 (static
and DHCP) peripherals.
The router and my ISP do IPV6, but currently I have it all disabled, and
reserve IPV4 address slots on the DHCP server in the router (based on
MAC address) for everything, then keep a matching "hosts" file in all
the linux hosts.
I have pondered running radvd etc on an always-on raspberry pi, but
can't see how to get it automagically into the nameserver chain.
From what I can see, Windows IPV6 hosts change their address every 15
minutes or so.
4:24 p.m.
The area I have most need of is how to configure my
home network to
handle IPV6.
I have a mix of IPV6-capable linux and win* and other pure IPV4
(static and DHCP) peripherals.
The router and my ISP do IPV6, but currently I have it all disabled,
and reserve IPV4 address slots on the DHCP server in the router (based
on MAC address) for everything, then keep a matching "hosts" file in
all the linux hosts.
Yeah good point - more than happy to do a strictly IPv6 talk too.
Definately probably a point most people are interested in.
I've been running v6 at home for a few years not, both in NZ and AU so
i've definitely had my fun with it :)
Fraser
6 Aug
6 Aug
2:36 p.m.
On Wed, 5 Aug 2015, Fraser McGlinn wrote:
My background so you can see if anything here
interests you -
I have a good ISP background, in which I have worked on networks
both small and large.
Through this I have a good knowledge of DSL based services and GPON
(This is what NBN runs on).
Broadband and PPP Services inc PPPoE and PPPoL2TP
I also have a good knowledge of routing protocols such as IS-IS and
BGP, and MPLS.
Obviously throughout this I have general networking knowledge such
as, subnetting, network design, troubleshooting, Quality of Service etc.
...
- Networking 101 - Fundamentals including subnetting,
OSI Model, packet
analysis and troubleshooting
- Networking in the home. Internal networking, ADSL networking
- Quality of Service - Packet marking, shaping and queuing
QoS, and the sysadmins amongst the crowd want to understand something,
anything about BGP, any/multi casting etc. What problems may result from
redundant network configurations - how ARPs may fail to be propagated,
etc.
Not personally helpful, but some of the crowd may be interesting in HA
failover mechanisms and load balancing?
--
Tim Connors
2:56 p.m.
QoS, and the sysadmins amongst the crowd want to
understand something,
anything about BGP, any/multi casting etc. What problems may result from
redundant network configurations - how ARPs may fail to be propagated,
etc.
Not personally helpful, but some of the crowd may be interesting in HA
failover mechanisms and load balancing?
Fair calls there. Not expecting this to be beneficial to everyone, but i
do want to try and make it as useful as I can as a majority. Thanks for
your input, I appreciate it.
Definitely an anycast/BGP or High Availability talk could definately be
very interesting. Even more so to look at how v6 fits into this going
forward and new challenges associated with this.
Again load-balancing is always very interesting, and looking at it from
the network level would be good.
It sounds like something around v6 or HA / Anycast / load balancing is
where there could be the most interest it seems.
Cheers,
Fraser
3:26 p.m.
On Thu, 6 Aug 2015, Fraser McGlinn wrote:
I'm not ready to give a talk myself, but one day I'll be up for giving a
server HA/load balancing talk. Mind you, I'm still learning about some of
it, so might have to wait until after help finish the current project
(www.bom.gov.au upgrade).
--
Tim Connors
QoS, and the
sysadmins amongst the crowd want to understand something,
anything about BGP, any/multi casting etc. What problems may result from
redundant network configurations - how ARPs may fail to be propagated,
etc.
Not personally helpful, but some of the crowd may be interesting in HA
failover mechanisms and load balancing?
Fair calls there. Not expecting this to be beneficial to everyone, but i
do want to try and make it as useful as I can as a majority. Thanks for
your input, I appreciate it.
Definitely an anycast/BGP or High Availability talk could definately be
very interesting. Even more so to look at how v6 fits into this going
forward and new challenges associated with this.
Again load-balancing is always very interesting, and looking at it from
the network level would be good.
It sounds like something around v6 or HA / Anycast / load balancing is
where there could be the most interest it seems. 
9:21 p.m.
Hello Tim,
On Thu, 2015-08-06 at 14:36 +1000, Tim Connors wrote:
Original request and proposal was for a beginners intro, basics, which
little bits might be missed. Mind you, what you are talking about would
be very interesting, once I have an network up and running.
On Wed, 5 Aug 2015, Fraser McGlinn wrote:
> My background so you can see if anything here interests you -
<Snip>
- Quality of
Service - Packet marking, shaping and queuing
QoS, and the sysadmins amongst the crowd want to understand something,
anything about BGP, any/multi casting etc. What problems may result from
redundant network configurations - how ARPs may fail to be propagated,
etc. Not personally helpful, but some of the crowd may be
interesting in HA
failover mechanisms and load balancing?
Regards,
Mark Trickett
11:07 p.m.
Original request and proposal was for a beginners intro, basics, which
little bits might be missed. Mind you, what you are talking about would
be very interesting, once I have an network up and running.
Yeah well as I said, just trying to get an idea where people are at - if there is a need
to do both a more advanced one and a beginners one, more than happy to commit my time to
do this.
Cheers,
Fraser
10 Aug
10 Aug
2:12 p.m.
On 06/08/15 14:36, Tim Connors wrote:
On Wed, 5 Aug 2015, Fraser McGlinn wrote:
I did a thing about QoS at LCA2014 sysadmin miniconf:
http://sysadmin.miniconf.org/presentations14.html#JulienGoodwin
Video:
https://www.youtube.com/watch?v=dbmY6xqgA7Y
My background so you can see if anything here
interests you -
I have a good ISP background, in which I have worked on networks
both small and large.
Through this I have a good knowledge of DSL based services and GPON
(This is what NBN runs on).
Broadband and PPP Services inc PPPoE and PPPoL2TP
I also have a good knowledge of routing protocols such as IS-IS and
BGP, and MPLS.
Obviously throughout this I have general networking knowledge such
as, subnetting, network design, troubleshooting, Quality of Service etc.
...
- Networking 101 - Fundamentals including
subnetting, OSI Model, packet
analysis and troubleshooting
- Networking in the home. Internal networking, ADSL networking
- Quality of Service - Packet marking, shaping and queuing
QoS, and the sysadmins amongst the crowd want to understand something,
anything about BGP, any/multi casting etc. What problems may result from
redundant network configurations - how ARPs may fail to be propagated,
etc.
2:33 p.m.
On 10/08/15 14:12, Julien Goodwin wrote:
I did a thing about QoS at LCA2014 sysadmin miniconf:
http://sysadmin.miniconf.org/presentations14.html#JulienGoodwin
Video:
https://www.youtube.com/watch?v=dbmY6xqgA7Y
A lot of good points in there - highly recommend people watch this.
Definitely want to reinforce the point that QoS needs to be carefully
planned and tested. Its not as simple as 'turning it on' as some people
would like to make it out to be.
Thanks for posting this Julien.
Cheers,
Fraser
7 Oct
7 Oct
5:17 p.m.
Hey Guys,
Thanks for having me speak last night - I hope you guys got something
out of it.
I've uploaded a whole heap of packet captures from some testing i've
been doing for work, basically in each one there is a different type of
traffic and if you wanted to have a poke around at different headers and
such feel free: http://frizianz.com/files/luv/
Note: These are taken from the point of view of a service provider with
an outer VLAN for all of a customers traffic before it hits the MPLS core.
You'll need a tool such as wireshark to open these files:
https://www.wireshark.org/#download
Note: OS X users download the development release as it doesn't need any
X11 libraries to run.
Any questions feel free to chuck them my way.
Cheers,
Fraser
9:19 p.m.
Hello Fraser,
On Wed, 2015-10-07 at 17:17 +1100, Fraser McGlinn wrote:
Hey Guys,
Thanks for having me speak last night - I hope you guys got something
out of it.
Wish I could have attended, at least four hours drive each way, and
needed to be on deck alert this morning. Also monies for fuel
diminished.
I've uploaded a whole heap of packet captures from
some testing i've
been doing for work, basically in each one there is a different type of
traffic and if you wanted to have a poke around at different headers and
such feel free: http://frizianz.com/files/luv/
Note: These are taken from the point of view of a service provider with
an outer VLAN for all of a customers traffic before it hits the MPLS core.
You'll need a tool such as wireshark to open these files:
https://www.wireshark.org/#download
Note: OS X users download the development release as it doesn't need any
X11 libraries to run.
Any questions feel free to chuck them my way.
Did someone record the presentation, or do you have a set of slides and
notes. Any chance of being able to post you a USB stick or a SD card
that can come back by post? My dial up account will vanish sometime
soonish, not been told quite when, yet, and need to make arrangements
for 3G/NextG access, depending on what the local mobile tower will
support. Unfortunately there is almost no choice, Telstra, and going for
Big Pond. That way over quota will be slowed rather than the Telstra
account which is $10 per extra gig or part thereof, if I remember
correctly, certainly expensive whichever way.
Cheers,
Fraser
Regards,
Mark Trickett
2730
days inactive
2793
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11 comments
5 participants
participants (5)
-
Allan Duncan -
Fraser McGlinn -
Julien Goodwin -
Mark Trickett -
Tim Connors