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Date: Fri, 8 Aug 2014 09:33:56 -0700 From: Stephen Hemminger <stephen@...workplumber.org> To: Zoltan Kiss <zoltan.kiss@...rix.com> Cc: David Vrabel <david.vrabel@...rix.com>, Wei Liu <wei.liu2@...rix.com>, Ian Campbell <Ian.Campbell@...rix.com>, <netdev@...r.kernel.org>, <xen-devel@...ts.xenproject.org>, <linux-kernel@...r.kernel.org> Subject: Re: [Xen-devel] [PATCH] xen-netback: Turn off the carrier if the guest is not able to receive This idea of bouncing carrier is wrong. If guest is flow blocked you don't want to toggle carrier. That will cause problems because applications that are looking for carrier transistions like routing daemons will be notified. If running a routing daemon this will also lead to link flapping which is very bad and cause lots of other work for peer routing daemons. Carrier is not a suitable flow control mechanism. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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