Oh, ok, so for reference, the natural behavior of confluent would… actually it would pick either the boot nic or the high speed nic, whichever replies first after OS load, it would then bring up both nics in the operating system. Though you could firewall off udp port 1900 over the ‘slow’ network to prevent the slow speed from coming up in the os until post phase, while allowing pxe.
Also, if the virtual media is supported, it could boot through that and leave the gigabit out of it entirely (if it were not plugged in/disabled).. From: Rundall, Jacob D <rund...@illinois.edu> Sent: Thursday, January 13, 2022 12:00 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net> Subject: Re: [xcat-user] [External] change NICs/networks part-way through netboot deployment of a node The NICs/IPs would be on different VLANs. I wonder if that installnic (from noderes) would work. We’ll have to look into that more. The use case is that we have a high-speed NIC that doesn’t have a boot ROM, so we can’t use it for the initial DHCP. But we think it will have a supported driver in the initrd context. And we have a regular 1G Ethernet NIC that does have a boot ROM. So we’d like to start the deployment with PXE using the 1G NIC and then cut over to the high-speed NIC once we’re in initrd so we can benefit from the higher speed when downloading the node image. From: Jarrod Johnson <jjohns...@lenovo.com<mailto:jjohns...@lenovo.com>> Reply-To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Date: Wednesday, January 12, 2022 at 5:27 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Subject: Re: [xcat-user] [External] change NICs/networks part-way through netboot deployment of a node Same vlan or different vlan? You can specify multiple names per mac address to have different dhcp assignments, it’s been a while but at least at one point you could manually specify installnic rather than let the mac follow through. I am curious about the usage scenario where you would not want to use the network interface that pxe booted for install, or not pxe boot from the install nic. I’m curious if confluent has the use case covered for anyone with similar requirements. From: Rundall, Jacob D <rund...@illinois.edu<mailto:rund...@illinois.edu>> Sent: Wednesday, January 12, 2022 4:27 PM To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net<mailto:xcat-user@lists.sourceforge.net>> Subject: [External] [xcat-user] change NICs/networks part-way through netboot deployment of a node We believe the xCAT netboot process goes like this: DHCP TFTP initrd DHPC (again) load image etc. We’re wondering if it is possible to configure so that the second DHCP attempt happens over a different NIC with a different IP address from the original. We can see that the mac table allows us to specify multiple MAC addresses that would be given the same IP, but we’re curious if we can set things up so the 2nd MAC gets a different IP address. Is that possible?
_______________________________________________ xCAT-user mailing list xCAT-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcat-user
