+ Post New Thread
Results 1 to 10 of 10
Wired Networks Thread, VLAN's AGAIN !!!!! in Technical; Hi all, I'm looking at setting up a couple of VLAN's to separate out staff & pupil machines and CCTV. ...
  1. #1
    mikkydoos's Avatar
    Join Date
    Jan 2009
    Location
    Jupiter and Saturn
    Posts
    262
    Thank Post
    55
    Thanked 25 Times in 21 Posts
    Rep Power
    16

    Angry VLAN's AGAIN !!!!!

    Hi all,

    I'm looking at setting up a couple of VLAN's to separate out staff & pupil machines and CCTV.

    Have I got the correct hardware in place and how do I do it?

    2 x Netgear GSM7312 L3 Switch (I'm currently using these to connect 2 buildings together via fibre. 1 at router end, 1 remote)
    1 x Netgear GSM7224 L2 Switch
    Loads of smart switches in the classrooms and offices.

    My DHCP server is virtual in a quad ethernet port host server


    Do my classroom switches need to be VLAN configurable or just the L3 switch?

    Confused..
    Last edited by mikkydoos; 14th January 2014 at 10:22 AM.

  2. #2

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    18,373
    Thank Post
    525
    Thanked 2,612 Times in 2,019 Posts
    Blog Entries
    24
    Rep Power
    890
    It all really depends how you're using VLANs. If they're statically assigned, and the classroom switches will only have a single VLAN on them, then they don't even need to be clever switches. You simply need to have the switch they connect to set to that VLAN on the port it connects to - so every bit of traffic coming in and going out on that port is marked as in that VLAN.

    If you will have different VLANs on a switch (some ports VLAN 1, others VLAN 2 etc...), then you need the device to understand VLANs and be able to mark ports as being on those VLANS, and then be able to 'trunk' the VLANs up to the core switch.

  3. 2 Thanks to localzuk:

    mikkydoos (14th January 2014), zag (14th January 2014)

  4. #3
    mikkydoos's Avatar
    Join Date
    Jan 2009
    Location
    Jupiter and Saturn
    Posts
    262
    Thank Post
    55
    Thanked 25 Times in 21 Posts
    Rep Power
    16
    Localz

    So if I have say..

    a switch in a classroom with 15 pc's connected to it and 2 cameras

    Do I need to run 2 cables to that room coming from 2 ports on my L3 switch trunked to 2 ports (or range of) on my smartswitch ?

  5. #4

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    18,373
    Thank Post
    525
    Thanked 2,612 Times in 2,019 Posts
    Blog Entries
    24
    Rep Power
    890
    No, you'd need a VLAN configurable switch in the room. If it were HP, I'd use the terms 'tagged' and 'untagged' for the port configuration.

    In the situation described, you'd mark the 15 ports used by PCs as 'untagged' on the 'PC' VLAN. You'd then mark the 2 ports with CCTV on as being 'untagged' on the CCTV VLAN. Then, you'd mark the uplink port as tagged on both the PC and CCTV VLANs, and the same on the other end (on whatever switch it connects to).

    So, your cable has both VLANs traversing it, and the switch segments the traffic accordingly.

  6. Thanks to localzuk from:

    mikkydoos (14th January 2014)

  7. #5
    mikkydoos's Avatar
    Join Date
    Jan 2009
    Location
    Jupiter and Saturn
    Posts
    262
    Thank Post
    55
    Thanked 25 Times in 21 Posts
    Rep Power
    16
    Got ya. Nice one.

    So cabling stays the same apart from at the L3 end where obviously 1 server will go into 1 VLAN port or range and the CCTV box will go into the other. Switches handle the rest until I come out of the switch at the other end where I have ports configured likewise.

    y ?

  8. #6

    localzuk's Avatar
    Join Date
    Dec 2006
    Location
    Minehead
    Posts
    18,373
    Thank Post
    525
    Thanked 2,612 Times in 2,019 Posts
    Blog Entries
    24
    Rep Power
    890
    Pretty much. I've rustled you up a simplified diagram so you see what I mean.

    Diagram.png

  9. 2 Thanks to localzuk:

    actech (16th January 2014), mikkydoos (14th January 2014)

  10. #7
    mikkydoos's Avatar
    Join Date
    Jan 2009
    Location
    Jupiter and Saturn
    Posts
    262
    Thank Post
    55
    Thanked 25 Times in 21 Posts
    Rep Power
    16
    Localz, you rock m8.

    Thank you

  11. #8
    zag
    zag is online now
    zag's Avatar
    Join Date
    Mar 2007
    Posts
    3,959
    Thank Post
    970
    Thanked 463 Times in 390 Posts
    Blog Entries
    12
    Rep Power
    95
    Thanks for this, I find VLANs incredibly confusing too at this really helps.

    I'm also using netgear switches, how are you finding them?

  12. #9
    mikkydoos's Avatar
    Join Date
    Jan 2009
    Location
    Jupiter and Saturn
    Posts
    262
    Thank Post
    55
    Thanked 25 Times in 21 Posts
    Rep Power
    16
    Ok apart from the TERRIBLE TERRIBLE CR@P web interface that is really flakey. They work though.

  13. #10
    Boredguy's Avatar
    Join Date
    Jun 2011
    Location
    Swindon
    Posts
    680
    Thank Post
    4
    Thanked 150 Times in 139 Posts
    Rep Power
    54
    All of our switches are Netgear, and they are fine for running multiple VLans over. Yes the web interface for some of them is a little broken as it does not display the Tag/Untagged image, but we just right click on the broken link to see if it's meant to be the U or T picture.



SHARE:
+ Post New Thread

Similar Threads

  1. insight - never again
    By Face-Man in forum Bad Experiences
    Replies: 10
    Last Post: 19th February 2008, 11:26 AM
  2. That damn Heinemann geography software again
    By dezt in forum Educational Software
    Replies: 9
    Last Post: 2nd March 2006, 12:01 PM
  3. printer scripts again!
    By chrbb in forum Windows
    Replies: 4
    Last Post: 10th February 2006, 01:19 PM
  4. Nurse! The screens! It's happened again!!
    By ajbritton in forum General Chat
    Replies: 11
    Last Post: 5th February 2006, 12:47 PM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •