From owner-freebsd-net@freebsd.org Tue Nov 26 11:33:45 2019 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id A883A1B2CA4 for ; Tue, 26 Nov 2019 11:33:45 +0000 (UTC) (envelope-from freebsd-rwg@gndrsh.dnsmgr.net) Received: from gndrsh.dnsmgr.net (br1.CN84in.dnsmgr.net [69.59.192.140]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 47MhcS2XpPz3Dmn for ; Tue, 26 Nov 2019 11:33:43 +0000 (UTC) (envelope-from freebsd-rwg@gndrsh.dnsmgr.net) Received: from gndrsh.dnsmgr.net (localhost [127.0.0.1]) by gndrsh.dnsmgr.net (8.13.3/8.13.3) with ESMTP id xAQBXfdu002682; Tue, 26 Nov 2019 03:33:41 -0800 (PST) (envelope-from freebsd-rwg@gndrsh.dnsmgr.net) Received: (from freebsd-rwg@localhost) by gndrsh.dnsmgr.net (8.13.3/8.13.3/Submit) id xAQBXehk002681; Tue, 26 Nov 2019 03:33:40 -0800 (PST) (envelope-from freebsd-rwg) From: "Rodney W. Grimes" Message-Id: <201911261133.xAQBXehk002681@gndrsh.dnsmgr.net> Subject: Re: SRv6 in FreeBSD In-Reply-To: <667fca00-fc93-c017-175e-722d7592b5c2@ssbglimited.co.uk> To: Unix Codenetworks Date: Tue, 26 Nov 2019 03:33:40 -0800 (PST) CC: madhava gaikwad , "freebsd-net@freebsd.org" X-Mailer: ELM [version 2.4ME+ PL121h (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-Rspamd-Queue-Id: 47MhcS2XpPz3Dmn X-Spamd-Bar: + Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=none (mx1.freebsd.org: domain of freebsd-rwg@gndrsh.dnsmgr.net has no SPF policy when checking 69.59.192.140) smtp.mailfrom=freebsd-rwg@gndrsh.dnsmgr.net X-Spamd-Result: default: False [1.85 / 15.00]; ARC_NA(0.00)[]; TO_DN_EQ_ADDR_SOME(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; TO_DN_SOME(0.00)[]; IP_SCORE(0.04)[ip: (0.14), ipnet: 69.59.192.0/19(0.07), asn: 13868(0.03), country: US(-0.05)]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; DMARC_NA(0.00)[dnsmgr.net]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.47)[0.474,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_SPAM_LONG(0.44)[0.442,0]; R_SPF_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:13868, ipnet:69.59.192.0/19, country:US]; FREEMAIL_CC(0.00)[yahoo.com]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2] X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Nov 2019 11:33:45 -0000 > Hi Alex, > > While I'm not a BSD developer, i really doubt it, considering that the > building blocks for SR are not there ( mpls support or just label > push/pop/swap). He specifically stated SRv6 which is not MPLS based. The building blocsk if one was to need this in a BSD are in OpenBSD which has an MPLS implementation. > > On the other hand, on SRv6 as you mentioned you rely on IPv6 headers and > there is a lot of conservatory about it.... ( unless you are a Cisco fan!) :-) The SRH is 5 years and 26 revisions into the process and has been "Submitted to IESG for Publication" per: https://datatracker.ietf.org/doc/draft-ietf-6man-segment-routing-header/ so it should be possible for someone to do an implementation in FreeBSD > > I'm interesting on the use case, if you don't mind... is it just service > chaining you application ? Usually servers are just part of an overlay ( > call it VXLAN,? MPLS? or something over something else...) I would be interested to here the use cases as well. > > Best regards. > > Santiago > > > On 2019-11-25 03:43, madhava gaikwad via freebsd-net wrote: > > Hello Experts, > > I want to know if there is any effort/planning going on to implement Segment Routing (RFC 8402?https://tools.ietf.org/html/rfc8402). I see Linux supporting it. Wondering if there is something planned on FreeBSD too.My app runs on FreeBSD and I have a use case to share information from one application gateway to another about connection identity. I thought SRv6 header can help me here. > > Thank you.Alex. > > _______________________________________________ > > freebsd-net@freebsd.org mailing list > > https://lists.freebsd.org/mailman/listinfo/freebsd-net > > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" > > -- Rod Grimes rgrimes@freebsd.org