From owner-svn-src-head@freebsd.org Wed Jun 13 07:19:57 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 212B8100D06A; Wed, 13 Jun 2018 07:19:57 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from forward102o.mail.yandex.net (forward102o.mail.yandex.net [IPv6:2a02:6b8:0:1a2d::602]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "forwards.mail.yandex.net", Issuer "Yandex CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8D44270D1A; Wed, 13 Jun 2018 07:19:55 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from mxback8g.mail.yandex.net (mxback8g.mail.yandex.net [IPv6:2a02:6b8:0:1472:2741:0:8b7:169]) by forward102o.mail.yandex.net (Yandex) with ESMTP id BD5A35A061FF; Wed, 13 Jun 2018 10:19:52 +0300 (MSK) Received: from smtp2p.mail.yandex.net (smtp2p.mail.yandex.net [2a02:6b8:0:1472:2741:0:8b6:7]) by mxback8g.mail.yandex.net (nwsmtp/Yandex) with ESMTP id fBgAywmVDG-JqHeGgjE; Wed, 13 Jun 2018 10:19:52 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1528874392; bh=0eBwnPVqZi0OjgtCSLsuNUmhUiKDG1f8WfwUo2LERAY=; h=Subject:To:Cc:References:From:Message-ID:Date:In-Reply-To; b=Q4Gw+yEwxGrq1/S3wP1gs48FauZ5ln+w84jSzFPUXIUrS4vu0V/tHBTjReostyS3+ LbWrXlVY2/DsXyA9Zh+KQhy4vWcJG6CCyD0OOGgIasQkofAsnkrjLgjFDBIceN/E7D 4cG7TPiVHjlIsgJXW1S34r6aUzgciHfeyotb5jI4= Received: by smtp2p.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id MyGuV6eCef-JkoWUNhI; Wed, 13 Jun 2018 10:19:47 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client certificate not present) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1528874387; bh=0eBwnPVqZi0OjgtCSLsuNUmhUiKDG1f8WfwUo2LERAY=; h=Subject:To:Cc:References:From:Message-ID:Date:In-Reply-To; b=O7P8Ab55F5OPJCIKW8C2UZ5CxobhsAH8XS3sQtF+171ai6Y5KTAcM7I9hLe9paFh9 uY4BckXBQ6dmBx+M/M64jyXnEyh63O4vq8/jV9zCJTIzwa61I2azkyiQpyzbb0xrWK Z/Dx7axmseAAL1rte/ulyFTZwR0eucZWQKc13ZZk= Authentication-Results: smtp2p.mail.yandex.net; dkim=pass header.i=@yandex.ru Subject: Re: svn commit: r334875 - head/sys/net To: rgrimes@freebsd.org Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org References: <201806091226.w59CQDSb018933@pdx.rh.CN85.dnsmgr.net> From: "Andrey V. Elsukov" Openpgp: id=E6591E1B41DA1516F0C9BC0001C5EA0410C8A17A Autocrypt: addr=bu7cher@yandex.ru; prefer-encrypt=mutual; keydata= xsBNBEwBF1kBCADB9sXFhBEUy8qQ4X63Y8eBatYMHGEFWN9ypS5lI3RE6qQW2EYbxNk7qUC5 21YIIS1mMFVBEfvR7J9uc7yaYgFCEb6Sce1RSO4ULN2mRKGHP3/Sl0ijZEjWHV91hY1YTHEF ZW/0GYinDf56sYpDDehaBF5wkWIo1+QK5nmj3vl0DIDCMNd7QEiWpyLVwECgLX2eOAXByT8B bCqVhJGcG6iFP7/B9Ll6uX5gb8thM9LM+ibwErDBVDGiOgvfxqidab7fdkh893IBCXa82H9N CNwnEtcgzh+BSKK5BgvPohFMgRwjti37TSxwLu63QejRGbZWSz3OK3jMOoF63tCgn7FvABEB AAHNIkFuZHJleSBWLiBFbHN1a292IDxhZUBmcmVlYnNkLm9yZz7CwHsEEwECACUCGwMGCwkI BwMCBhUIAgkKCwQWAgMBAh4BAheABQJMB/ruAhkBAAoJEAHF6gQQyKF6MLwH/3Ri/TZl9uo0 SepYWXOnxL6EaDVXDA+dLb1eLKC4PRBBjX29ttQ0KaWapiE6y5/AfzOPmRtHLrHYHjd/aiHX GMLHcYRXD+5GvdkK8iMALrZ28X0JXyuuZa8rAxWIWmCbYHNSBy2unqWgTI04Erodk90IALgM 9JeHN9sFqTM6zalrMnTzlcmel4kcjT3lyYw3vOKgoYLtsLhKZSbJoVVVlvRlGBpHFJI5AoYJ SyfXoN0rcX6k9X7Isp2K50YjqxV4v78xluh1puhwZyC0p8IShPrmrp9Oy9JkMX90o6UAXdGU KfdExJuGJfUZOFBTtNIMNIAKfMTjhpRhxONIr0emxxDOwE0ETAEXWQEIAJ2p6l9LBoqdH/0J PEFDY2t2gTvAuzz+8zs3R03dFuHcNbOwjvWCG0aOmVpAzkRa8egn5JB4sZaFUtKPYJEQ1Iu+ LUBwgvtXf4vWpzC67zs2dDuiW4LamH5p6xkTD61aHR7mCB3bg2TUjrDWn2Jt44cvoYxj3dz4 S49U1rc9ZPgD5axCNv45j72tggWlZvpefThP7xT1OlNTUqye2gAwQravXpZkl5JG4eOqJVIU X316iE3qso0iXRUtO7OseBf0PiVmk+wCahdreHOeOxK5jMhYkPKVn7z1sZiB7W2H2TojbmcK HZC22sz7Z/H36Lhg1+/RCnGzdEcjGc8oFHXHCxUAEQEAAcLAXwQYAQIACQUCTAEXWQIbDAAK CRABxeoEEMihegkYCAC3ivGYNe2taNm/4Nx5GPdzuaAJGKWksV+w9mo7dQvU+NmI2az5w8vw 98OmX7G0OV9snxMW+6cyNqBrVFTu33VVNzz9pnqNCHxGvj5dL5ltP160JV2zw2bUwJBYsgYQ WfyJJIM7l3gv5ZS3DGqaGIm9gOK1ANxfrR5PgPzvI9VxDhlr2juEVMZYAqPLEJe+SSxbwLoz BcFCNdDAyXcaAzXsx/E02YWm1hIWNRxanAe7Vlg7OL+gvLpdtrYCMg28PNqKNyrQ87LQ49O9 50IIZDOtNFeR0FGucjcLPdS9PiEqCoH7/waJxWp6ydJ+g4OYRBYNM0EmMgy1N85JJrV1mi5i Message-ID: Date: Wed, 13 Jun 2018 10:17:06 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <201806091226.w59CQDSb018933@pdx.rh.CN85.dnsmgr.net> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="g6BMwXcbPiB6Lmsw2vprqidkiofrwEEIl" X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Jun 2018 07:19:57 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --g6BMwXcbPiB6Lmsw2vprqidkiofrwEEIl Content-Type: multipart/mixed; boundary="npdWcDhDIqPwT0xGtS5HRSU47XXLeAEJN"; protected-headers="v1" From: "Andrey V. Elsukov" To: rgrimes@freebsd.org Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Message-ID: Subject: Re: svn commit: r334875 - head/sys/net References: <201806091226.w59CQDSb018933@pdx.rh.CN85.dnsmgr.net> In-Reply-To: <201806091226.w59CQDSb018933@pdx.rh.CN85.dnsmgr.net> --npdWcDhDIqPwT0xGtS5HRSU47XXLeAEJN Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 09.06.2018 15:26, Rodney W. Grimes wrote: >> Author: ae >> Date: Sat Jun 9 09:57:14 2018 >> New Revision: 334875 >> URL: https://svnweb.freebsd.org/changeset/base/334875 >> >> Log: >> Explicitly change the link state when we assingn an address. >> =20 >> Since we are setting IFF_UP flag on SIOCSIFADDR, it is possible, tha= t >> after this link state information still not initialized properly. >> This leads to problems with routing, since now interface has >> IFCAP_LINKSTATE capability and a route is considered as working only= >> when interface's link state is in LINK_STATE_UP (see RT_LINK_IS_UP()= >> macro). >=20 > I was going to say something when the ability to up and down > the loopback interfaces was added as it perturbed me but I > could not put my finger on places it may cause problems so > remained silent on the matter. >=20 > Now that I see this issue, having lo0 go DOWN can kill a network > that is using exported from lo0 into a routing protocol routes that=20 > are used for management purposes. This was one of the main reasons of this change. > How does Cisco, Juniper, etc at handle this? > Do any of them or all of them allow you to "down" loopback? AFAIK, they allow this. --=20 WBR, Andrey V. Elsukov --npdWcDhDIqPwT0xGtS5HRSU47XXLeAEJN-- --g6BMwXcbPiB6Lmsw2vprqidkiofrwEEIl Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEzBAEBCAAdFiEE5lkeG0HaFRbwybwAAcXqBBDIoXoFAlsgxPIACgkQAcXqBBDI oXq7Kgf+JsmByV3u2e2rZR7QwiNxXmXfYOXzrQZ7dgAvguHur7fWHpBb5JIL9XE8 w83DDBXqyq2pc6QjoKZ6D4qc44dss070yUCSY+lEGxIY4JvKylmXSy3rZyU92wD9 RtmTDzdvyoiEfBSLsOAvDvZmcURODeaf42jHNvnMDVcFSPZU8dPLClYQYbiFcI8M 58o/e3a3etyruZ3Eh/U6Dju4hRi61SScP2uhRF5M1xMmXOcHVtj9IZKPMs/o0rlA OLjcyZ30Aktj6aJ91ktSA0alIqcozfNnRRdUgfkh45pxf29BgeeGeuOmR8q9PFB1 sDnWGyxLuiqJQqktwN7IA7v9i8tcXA== =XSJY -----END PGP SIGNATURE----- --g6BMwXcbPiB6Lmsw2vprqidkiofrwEEIl--