Use Extra Parameters In NIC Configuration File

Use nicextraparams to customize attributes in NIC configuration file. For example :

1. Compute node cn1 with one physical NIC: eth1

2. Configure network into networks table, configure nicips, nictypes and nicnetworks in nics table, like Configure Ethernet Network Interface

3. In order to customize “MTU=1456 ONBOOT=no” for eth1. configure nicips, nictypes and nicnetworks in nics table , also need to configure nicextraparams as following:

   chdef cn1 nicextraparams.eth1="MTU=1456 ONBOOT=no"
   

4. After confignetwork is executed in cn1, nicextraparams will overwrite the original value in /etc/sysconfig/network-scripts/ifcfg-eth1 as

   DEVICE=eth1
   IPADDR=13.1.89.7
   NETMASK=255.255.255.0
   BOOTPROTO=static
   ONBOOT=no
   HWADDR=42:f5:0a:05:6a:09
   MTU=1456
   

5. Example to add nicextraparams to bond interface

   chdef cn1 nicextraparams.bond0='BONDING_OPTS="mode=active-backup;abc=100" MTU=6400 XYZ="4800" IOP="mode=1 phase=2"'