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Forum Discussion

rmarsf_152525's avatar
rmarsf_152525
Icon for Nimbostratus rankNimbostratus
May 22, 2014

How does Bigip F5 LTM select which VM Adapter it assigns to the management interface

I want my management interface to use adapter 0 of my VM. It has an affinity to adapter 1 not matter what I seem to do. I have tried editing base-mac in bigip_base.conf. No matter what I do it uses...
rmarsf_152525's avatar
rmarsf_152525
Icon for Nimbostratus rankNimbostratus
May 26, 2014

I am using Oracle virtualbox. I found the answer. (or at least a workaround) chmand (chassy manager) on startup, inspects adapters and assigns to interfaces. chmand skips the adapter if it was set to Intel adapter type. saw it being inspected and skipped in /var/log/ltm. setting adapter 1 to PCnet-FAST III (Am79C973) it was inspected and selected as the management interface. Note, setting any other adapters to Am79C973 they would not be assigned to LTM interfaces - and your interfaces would be empty. Setting those to Intel PRO/1000 MT Server (8245EM) worked. I have not tried other adapter types - so the above solution may not be the only one. I also don't know why this works at this point.