RHEL / CentOS nic mapping via udev.d

To re-arrange the eth numbering of a nic device, one have to edit /etc/udev/rules.d/70-persistent-net.rules and follow by a system reboot. 


[root@dumphost ~]# cat /etc/udev/rules.d/70-persistent-net.rules
# This file was automatically generated by the /lib/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.

# PCI device 0x14e4:0x1639 (bnx2) (custom name provided by external tool)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="98:4b:e1:66:09:ee", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x14e4:0x1639 (bnx2) (custom name provided by external tool)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="98:4b:e1:66:29:40", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2"

# PCI device 0x14e4:0x1639 (bnx2) (custom name provided by external tool)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="98:4b:e1:66:29:42", ATTR{type}=="1", KERNEL=="eth*", NAME="eth3"

# PCI device 0x14e4:0x1639 (bnx2) (custom name provided by external tool)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="98:4b:e1:66:09:ec", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"