Consistent Network Device Naming
- Consistent Network Device Naming
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Consistent Network Device Naming is a standard for naming ethernet adapters in Linux created to replace the old standard ethX which caused problems on multihomed machines[citation needed] whereby the network adapters would get renamed based on which was polled first during bootup.
The new naming scheme is as follows:
- em[1-N] for on-board (embedded) NICs (# matches chassis labels)
- pci<slot>#<port> for cards in PCI slots, port 1..N
- NPAR & SR-IOV devices add a suffix of _<vf>, from 0..N depending on the number of Partitions or Virtual Functions exposed on each port.
- Other Linux conventions, such as .<vlan> and :<alias> suffixes remain unchanged and are still applicable [1]
Among the first major Linux distributions to adopt the standard, there are Fedora 15[2] and Red Hat RHEL 6.1 [3].
References
- ^ digitizor.com
- ^ eSecurity Planet Fedora 15 boosts Linux security
- ^ Dell, Narendra K Consistent Network Device Naming in Linux, Dell Linux Engineering division
Further reading
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