Date: Fri, 4 Feb 2011 13:42:03 +0100 From: Bernhard Schmidt <bschmidt@freebsd.org> To: Damien Fleuriot <ml@my.gd> Cc: freebsd-stable@freebsd.org Subject: Re: link aggregation - bundling 2 lagg interfaces together Message-ID: <201102041342.03522.bschmidt@freebsd.org> In-Reply-To: <4D4BED80.5060806@my.gd> References: <4D4BED80.5060806@my.gd>
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On Friday 04 February 2011 13:13:52 Damien Fleuriot wrote: > Hello list, > > > > I have a firewall with 2x Intel pro dual port cards. > > On Intel A , port 1 goes to switch 1, port 2 goes to switch 2 > On Intel B , port 1 goes to switch 1, port 2 goes to switch 2 > > > I have created the following 2 lagg devices using LACP: > > lagg0 = A1 + B1 > lagg1 = A2 + B2 > > This works fine. > > > Now, what I had in mind was creating a lagg2 device using lagg0 and > lagg1 with failover. > > That would provide redundancy in case of a switch failure. > > ifconfig won't let me though: > > # ifconfig lagg2 laggproto failover laggport lagg0 laggport lagg1 > ifconfig: SIOCSLAGGPORT: Invalid argument > > > > I suppose it's not possible to aggregate lagg interfaces ? > > That would shatter my dreams :( I have no clue if that is at all possible, or makes any sense at all, but can't you just add all 4 ports one lagg interface? -- Bernhard
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