From owner-freebsd-net@freebsd.org Tue Nov 26 20:20:20 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 ABA451C022B for ; Tue, 26 Nov 2019 20:20:20 +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 47MwJ32bjfz4D2h for ; Tue, 26 Nov 2019 20:20:18 +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 xAQKKEjP004316; Tue, 26 Nov 2019 12:20:14 -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 xAQKKDA0004315; Tue, 26 Nov 2019 12:20:13 -0800 (PST) (envelope-from freebsd-rwg) From: "Rodney W. Grimes" Message-Id: <201911262020.xAQKKDA0004315@gndrsh.dnsmgr.net> Subject: Re: SRv6 in FreeBSD In-Reply-To: <3c7ffebc-3ca9-eceb-36e7-2c7a0975d746@ssbglimited.co.uk> To: Unix Codenetworks Date: Tue, 26 Nov 2019 12:20:13 -0800 (PST) CC: 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: 47MwJ32bjfz4D2h 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 [2.15 / 15.00]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; DMARC_NA(0.00)[dnsmgr.net]; AUTH_NA(1.00)[]; NEURAL_SPAM_MEDIUM(0.71)[0.707,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_TWO(0.00)[2]; NEURAL_SPAM_LONG(0.51)[0.506,0]; 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]; MID_RHS_MATCH_FROM(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)]; 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 20:20:20 -0000 > Hi Rodney, > > I haven't said that is not approved or an RFC exist (there are many and some interesting use cases) , but can you tell me of any in production deployments? I can not, though for the SRH to be in its current state as a "Standards Track" document there must be running code someplace... and that usually implies production deployments as well, or atleast not small scale tests. > > The conservatory still there, if you check with your customer, how many are willing to deploy it? I did not mention any customer(s) at all, I stated I was interested in any use case. > > Open for an offline talk about it as i really like to know if you are seeing other thing.. I do not know that there is much to talk about. > Best regards. > > Santiago > > > > On 2019-11-26 11:33, Rodney W. Grimes wrote: > > >> 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" > >> > >> > _______________________________________________ > 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