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11.5. Naming Scheme for VLAN Interfaces
Traditionally, VLAN interface names in the format: interface-name.VLAN-ID are used. The
VLAN-ID ranges from 0 to 4096, which is a maximum of four characters and the total interface name has a limit of 15 characters. The maximum interface name length is defined by the kernel headers and is a global limit, affecting all applications.
In Red Hat Enterprise Linux 7, four naming conventions for VLAN interface names are supported:
- VLAN plus VLAN ID
- The word
vlanplus the VLAN ID. For example: vlan0005 - VLAN plus VLAN ID without padding
- The word
vlanplus the VLAN ID without padding by means of additional leading zeros. For example: vlan5 - Device name plus VLAN ID
- The name of the parent interface plus the VLAN ID. For example: eth0.0005
- Device name plus VLAN ID without padding
- The name of the parent interface plus the VLAN ID without padding by means of additional leading zeros. For example: eth0.5
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