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##### RHEL 5 Systems Likely to Enumerate PCIe Ethernet Ports First (6758623)

Because of changes in the drivers for Red Hat Enterprise Linux 5, Ethernet port assignments might not start with the four built-in ports that are connected to the onboard network controller. If any Ethernet PCIe option cards are installed, ports on these option cards might get the first port numbers.

In RHEL 4 you can assume that the built-in ports are assigned port number 0-3. That assumption might not be valid after an upgrade to RHEL 5.

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