Open Infrastructure

h1. The ungleich netboot infrastructure

h2. Status

The document is *PRE PRODUCTION*.

h2. Server configuration

* All servers are supposed to have eth0 and eth1

** Both cards are fiber

** Both cards will be bonded

* The ROM/BIOS of servers should be configured for netbooting

h2. Switch configuration

* Switches are MLAG bonded over two switches

* Servers are thus redundantly connected to two switches

* To support netbooting easily, we setup a "native vlan"

** Aka which vlan to use if there is untagged traffic

Sample configuration from place6 (2021-02-07):

<pre>

interface Port-Channel1

   switchport trunk native vlan 10

   switchport mode trunk

   port-channel lacp fallback static

   port-channel lacp fallback timeout 20

   mlag 1

</pre>

h2. IP configuration

* As many PXE roms still don't properly support IPv6, we use IPv4 netbooting

** This might be changed in the future, when we can replace all ROMs with ipxe