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
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.
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
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
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
On Thu, 6 Aug 2015, Fraser McGlinn wrote:
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.
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
Hello Tim, On Thu, 2015-08-06 at 14:36 +1000, Tim Connors wrote:
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.
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.
Not personally helpful, but some of the crowd may be interesting in HA failover mechanisms and load balancing?
Regards, Mark Trickett
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
On 06/08/15 14:36, Tim Connors wrote:
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.
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
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
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
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
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
participants (5)
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Allan Duncan -
Fraser McGlinn -
Julien Goodwin -
Mark Trickett -
Tim Connors