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Open Source and information security mailing list archives
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Date: Fri, 14 Sep 2007 13:39:44 -0700 From: Jay Vosburgh <fubar@...ibm.com> To: Dan Williams <dcbw@...hat.com> cc: Jeff Garzik <jeff@...zik.org>, Andrew Morton <akpm@...ux-foundation.org>, Linus Torvalds <torvalds@...ux-foundation.org>, netdev@...r.kernel.org, LKML <linux-kernel@...r.kernel.org> Subject: Re: [git patches] net driver fixes Dan Williams <dcbw@...hat.com> wrote: [...] >So essentially the ehea device has a 1(+) external ports that may/may >not be connected, but all lpars share the physical hardware itself, >which is quite happy to let all the lpars talk to each other essentially >via loopback even if there is no actual carrier detected on the external >port(s)? [...] Yes. >[...] How does addressing work here, is it just L2 addresses? Yes. The logical ports all have unique MAC addresses. > [...] Feel >free to point me to some docs and tell me to shut up :) http://www.redbooks.ibm.com/redpieces/abstracts/redp4340.html I found this via google; I haven't read it in detail, but it seems to cover the HEA architecture at a high level. It talks about the whole "IVE" (integrated virtual ethernet: the adapter, hypervisor, etc) system, but HEA is part of that, so it's probably got the answers you're looking for. -J --- -Jay Vosburgh, IBM Linux Technology Center, fubar@...ibm.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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