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I'm using biosdevname on a CentOS 6.3 server to name my interfaces in a rational way. On our new Dell PowerEdge C6145, we have 2 embedded ports and two PCI cards with 4 ports each.

On our other Dell 815 servers with a similar configuration, we get em1, em2, (and actually em3 and em4 on those), and then p1p1, p1p2, p1p3, p1p4, and p2p1, p2p2, p2p3, p2p4.

For whatever reason this system gives "120" for the slot number rather than 1. Now, I can accept that it might not be slot one internally, but it's definitely also not the one hundred and twentieth.

I updated to biosdevname 0.4.1 from Fedora Rawhide but am getting the same result.

Since our puppet configuration is expecting the other names, this is a hassle. We can work around it, but I'd rather only do the workaround if there is a rational explanation — either a bug needing a temporary fix, or something that I don't understand which makes the large number actually sensible.

So, is there such a explanation?

share|improve this question
    
Do lspci, lshw, or dmidecode shed any light? –  Mikel Jul 26 '12 at 15:46
    
What are you using the p1p1-like names for? Perhaps there's a better way? –  Mikel Jul 26 '12 at 15:47

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