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Need to PXE boot on X650 on a 2x10GbE LACP LAG

Need to PXE boot on X650 on a 2x10GbE LACP LAG

brendan1
New Contributor

‎06-20-2014 11:32 PM

Hi All ;

We are currently attempting to boot a 2x10GbE server with Intel 82559 NICs with Boot Agent (XE). We have both NICs set to PXE boot. We get an IP address from DHCP on one of the NICs, but we cannot get the boot file pxelinux.0 over TFP, it just hangs.

If we put a machine on the same VLAN it gets the file no issues, its the LACP LAG that it seems to choke on.

Whats the proper switch config (single switch, no stack) that allows a PXE boot from a LACP LAG. Ive tried a huge number of things and cant figure it out.

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rbrt
Contributor

‎06-23-2014 05:20 AM

Hi Brendan,

I would not recommend to connect the server with two links while booting, as LACP has to be configured on the host as well - and I doubt that Intels Boot Agent does LACP by default.
  1. Connect the server with one NIC only.
  2. Install the operating system via TFTP.
  3. Configure LACP in the operating system once it is installed.
  4. Connect the second NIC of the server.
At least that is the way we did it for the last few years. And even in that case you should calculate a few seconds of offline time once you connect the second NIC (LACP initialization etc.).

-Robert
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