FOG setup on new network with 4 Vlans


  • Moderator

    moving to a new network and i am trying to get ideas/find the best solution around this.

    the new network will be HP and will be using distributed trunking, which i have been told does not support multicast routing. Therefore I will not be able to multicast across vlans. It would seem I need a nic for each vlan on my FOG Box is this possible?

    or is it possible to have the Nic Vlan tagged so all vlans point to the fog box?



  • Just when I thought I was an expert at networking, You guys throw vlans at me :(



  • oh right! sorry misunderstood you there


  • Moderator

    [quote=“kirksec, post: 2039, member: 289”]this is possible i can assure you, it just needs to be setup i have my fog server sitting on our “server vlan” and my user’s is on staff and student vlans, i have no issues imaging them…[/quote]

    yes currently I have the same setup as you on a Cisco network, but I was asking if it is possible to get FOG working a new HP Network that would be using DTP (Distributed Trunking Protocol). I have been told by HP that when using DTP it does not allow Multicast routing which therefore means i cannot route my multicast session across vlans but unicasts will work fine.

    I was wondering if it was possible/and if FOG would work if I had 802.1q vlan tagging on the Ubuntu Server and have Multiple VLAN membership on one Ethernet port similar to this:
    [URL=‘http://community.spiceworks.com/topic/196724-multiple-vlan-membership’]http://community.spiceworks.com/topic/196724-multiple-vlan-membership [/URL]



  • this is possible i can assure you, it just needs to be setup i have my fog server sitting on our “server vlan” and my user’s is on staff and student vlans, i have no issues imaging them…


  • Moderator

    [quote=“jdd49, post: 2021, member: 623”]Fog cannot function like this as is but anything is possible. Here are a few suggestions:
    1.) 4 different fog machines each one on a different vlan. Machines are cheap almost anything laying around would work fine. I do 1000’s of machines with 1 basic desktop with only a pentium D.
    2.) 1 Really good server with 3 other virtual fog boxes
    3.) If it is only multicasting that can not cross the vlans. Then as you said put 4 nics in and before you start a multicast just switch the multicast interface to your other card. You could even add an extra box when starting a multicast that asks what interface you want to send out on.[/quote]

    thanks for the response, I shall have a rethink of the best way to approach this



  • Fog cannot function like this as is but anything is possible. Here are a few suggestions:
    1.) 4 different fog machines each one on a different vlan. Machines are cheap almost anything laying around would work fine. I do 1000’s of machines with 1 basic desktop with only a pentium D.
    2.) 1 Really good server with 3 other virtual fog boxes
    3.) If it is only multicasting that can not cross the vlans. Then as you said put 4 nics in and before you start a multicast just switch the multicast interface to your other card. You could even add an extra box when starting a multicast that asks what interface you want to send out on.



  • is there not a way to make certains vlans accessible to each other ?
    i know i am working in an enviroment with more than 3 vlans and there is certain vlans that can see each other and certain ones cannot, so i know its possible so just get the Network guy to open the vlans to see each other


  • Moderator

    bump


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