+ Post New Thread
Results 1 to 4 of 4
Thin Client and Virtual Machines Thread, Plea for help! (Vsphere/ESX) in Technical; I'm not 100% convinced my link aggregation setup for ESXi to our (HP) switches is spot on. Everything works, there's ...
  1. #1

    synaesthesia's Avatar
    Join Date
    Jan 2009
    Location
    Northamptonshire
    Posts
    5,843
    Thank Post
    570
    Thanked 994 Times in 766 Posts
    Blog Entries
    15
    Rep Power
    460

    Plea for help! (Vsphere/ESX)

    I'm not 100% convinced my link aggregation setup for ESXi to our (HP) switches is spot on.
    Everything works, there's no apparent issues flagged on the switches but every now and then it seems clear the network is bottlenecking.

    Would anyone be so kind as to provide information/screenshots on their exact setup? (feel free to mask bits for security/anonymity!)

    What I would like to check is:

    Vswitch setup with multiple physical NICs link aggregated to a HP switch. Better still if VLAN'd.
    And the relevant HP switch setup for it to (text config or screengrab of the gui if you're masochistic!)

    Many thanks in advance

    (Rough idea of what I have currently which seems to drop a few more packets than I'd like)

    HP setup (Procurve 5406ZL) - 3 ports (trunk group TRK1) LACP disabled, trunk type "Trunk". Flow control disabled. Vlan 100 (servers) tagged, untagged to default
    ESXi (Vsphere) setup - management network goes to a separate port in switch (vmnic 0)
    "vswitch2" contains the guest VMs connected to 3 physical adapters (vmnic1 to 3).
    Vswitch on MTU1500, load balancing route based on IP hash. All 3 adapters active, full gigabit.
    Servers on Vlan 100, load blaancing via IP Hash
    Last edited by synaesthesia; 5th December 2013 at 11:12 AM.

  2. #2
    AButters's Avatar
    Join Date
    Feb 2012
    Location
    Wales
    Posts
    452
    Thank Post
    137
    Thanked 105 Times in 80 Posts
    Rep Power
    41
    Can you get us a print out of the port statistics for each of the three trunk ports? You may find only one of the three ports in the tunk is transferring most of the data. Link aggregation is often not the magic bullet for doubling bandwidth that people think it is!

  3. #3

    synaesthesia's Avatar
    Join Date
    Jan 2009
    Location
    Northamptonshire
    Posts
    5,843
    Thank Post
    570
    Thanked 994 Times in 766 Posts
    Blog Entries
    15
    Rep Power
    460
    True indeed, for us it's more about resilience and taking the edge of things with our minimal budget

    a1.JPG
    a3.JPG
    a4.JPG
    Last edited by synaesthesia; 5th December 2013 at 04:18 PM.

  4. #4

    synaesthesia's Avatar
    Join Date
    Jan 2009
    Location
    Northamptonshire
    Posts
    5,843
    Thank Post
    570
    Thanked 994 Times in 766 Posts
    Blog Entries
    15
    Rep Power
    460
    Also finding it odd that packets would get dropped to one guest but not another on the same host. Same OS (2008R2), same vnic on the same vswitch. Not many - talking a packet (well, a missed ping) an hour.
    VM to VM networking seems "suspect". Iperf gives us a max of 15Mb/s between two guests on the same host. 800 from my machine (client) to either machine though.
    Last edited by synaesthesia; 6th December 2013 at 08:48 AM.

SHARE:
+ Post New Thread

Similar Threads

  1. Replies: 0
    Last Post: 24th March 2012, 11:48 AM
  2. A Plea for Help - Educational Software Knowledgebase
    By FN-GM in forum General EduGeek News/Announcements
    Replies: 1
    Last Post: 10th May 2010, 12:23 PM
  3. FMS - a plea for help!
    By theeldergeek in forum MIS Systems
    Replies: 11
    Last Post: 11th April 2008, 04:32 PM
  4. A Plea for Help - Educational Software Knowledgebase
    By FN-GM in forum Wiki Announcements
    Replies: 0
    Last Post: 27th March 2008, 06:43 PM

Thread Information

Users Browsing this Thread

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

Posting Permissions

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