Date: Thu, 10 Dec 2015 20:40:38 +0100 From: Julien Cigar <jcigar@ulb.ac.be> To: Emmanuel Vadot <manu@bidouilliste.com> Cc: freebsd-questions@freebsd.org Subject: Re: CARP demotion counter Message-ID: <20151210194038.GN13477@mordor.lan> In-Reply-To: <ee17d45f9f7b1a24f76b59b09608d466@megadrive.org> References: <20151210182821.GM13477@mordor.lan> <ee17d45f9f7b1a24f76b59b09608d466@megadrive.org>
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--qngN6uuxP6gxHZuU Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Dec 10, 2015 at 08:00:48PM +0100, Emmanuel Vadot wrote: > On 2015-12-10 19:28, Julien Cigar wrote: > > Hello, > >=20 > > I'm busy to setup a redundant router/firewall with two Soekris 6501,=20 > > PF, > > CARP and PFSync. > >=20 > > I wondered if it was normal that the CARP demotion counter > > (net.inet.carp.demotion) is greater than 0 at boot? > >=20 > > I'm asking this because it seems that the MASTER never returns from a > > BACKUP state, and it seems that's because the demotion counter is > > greater than 0 on both boxes (480) .. > >=20 > > Any idea .. ? > >=20 > > Thanks, > > Julien >=20 > You need net.inet.carp.preempt=3D1 for MASTER returning to MASTER after= a=20 > BACKUP state. > Otherwise as long as another machine have the carp ip, it will stay to= =20 > BACKUP. Both machines have net.inet.carp.preempt=3D1 To sum up, with "A" the original MASTER, "B" the BACKUP: - At first boot net.inet.carp.demotion is > 0 on A and B (which is not expected) - A is in MASTER state and B is in BACKUP state (which is expected) - If I unplug the cable from A, the state changes from BACKUP -> MASTER on B (which is expected) - When I re-plug the cable in A, the state remains the same (A is in BACKUP and B is in MASTER, which is *not* expexted) - As soon as set net.inet.carp.demotion to "0" the states change as expected (A in MASTER and B in BACKUP) Is it normal and expected that the demotion counter is > 0 at first=20 boot? Could this be related to the order of the interfaces? Thanks! Julien >=20 > --=20 > Emmanuel Vadot > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.o= rg" --=20 Julien Cigar Belgian Biodiversity Platform (http://www.biodiversity.be) PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0 No trees were killed in the creation of this message. However, many electrons were terribly inconvenienced. --qngN6uuxP6gxHZuU Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCgAGBQJWadUzAAoJEAi2KiTKQR5p4UQP/0TwMwd6toiMxlNGXIIYP3jR NnV6cbdtBjlm4lI2JEsXDrBaeBVqTtUlmkM6o6kffH5OIBAM5H6Ra9GT/E4t1cr5 JfzFZB2554ZNpHuTqUWL+89KPLjkiCDWoKYJ/NLqfEGRLitPQ4mIGPio0rcmmcEb ptrPrHp5HBYdf32BxC1n1oHfmRxEh2RLFGvOalCTkPOG/K8OXPJ5LIuUlmJuv8Yn CZyuZRur0MgI3gKBdctEfYdDvLr4d01SEyniXAUUGE/mq8qztciEn0hyUkrxMO7f OtJeHPgCtu9f8TvBBOen3qUkB3CeuuIe3GgV0tCF3qRy/RnvFM4LZIecBLTEJ4iH D3LipTUOSaBvW+J+m+caJE9l91RgxysQb+zCknwev1lWFMq0ZgVvDId7bh8hRynC pmCoHK+pbMEqtmqD3E2DIoEenpfa7MRj0AuPARq7gB1Tmiuqw5bbPJc1PqMNOEDz Hs8SRbKIHC98VjMyJQ1QyxDho4ZyZ9jROl7rxfQmK9ZXYVHmpHYcu39gtxc/d3kd VmxD6KhHUC6wAaI+nvs6AE5dHrofSK7J3UJQpNP9wEzkkqMcGPe3ne0R8UVz4Xwv 5nxfZUzpNSqIjRz7cMvcDX2i9ethu6pkqWelxgGCY5N7mmO/1YDgOOxn+rXxQA8x XacMwoROFFE1VGDoaHiq =/+vQ -----END PGP SIGNATURE----- --qngN6uuxP6gxHZuU--
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