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Stewart_76633's avatar
Stewart_76633
Icon for Nimbostratus rankNimbostratus
Jan 09, 2013

LTM trunk to seperate switches?

As per this document, http://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos_management_guide_10_1/tmos_trunks.html, I have a fair understanding of what Trunks are all about. For res...
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Stewart_76633's avatar
Stewart_76633
Icon for Nimbostratus rankNimbostratus
Jan 09, 2013
Seems like you were right from the start nitass. I created the interfaces on the same VLAN to two different switches. At first I had switch ports getting disabled because the F5 was participating in spanning tree. After disabling BPDUguard on the switch STP negotiated the forwarding paths. Ive tested shutting a switch port (to simulate a switch failure) and I lose a couple of pings while the network re-converges then It's good again. Happy with this...

 

 

Cheers!
  • nolipineda's avatar
    nolipineda
    Icon for Altostratus rankAltostratus
    Apr 10, 2014
    Hi Stewart, Did you try fail-back? If yes, what was the recovery time? Would you mind sharing your STP thresholds please? Thanks!
  • satish_txt_2254's avatar
    satish_txt_2254
    Icon for Cirrus rankCirrus
    Apr 27, 2017

    How did you disable BPDU guard i have tried disabling BPDU guard on switch port where F5 connected but it didn't work 😞

    my port is getting in BLK (loopguard mode)

    Vlan                Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
VLAN0201            Root BKN*3         128.456  P2p *LOOP_Inc

    I am trying to simulate scenario where my primary switch failed and it contine work...