Re: [Idr] I-D Action: draft-ietf-idr-rfc5575bis-00.txt
Christoph Loibl <c@tix.at> Fri, 03 March 2017 10:23 UTC
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From: Christoph Loibl <c@tix.at>
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Date: Fri, 03 Mar 2017 11:23:12 +0100
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Subject: Re: [Idr] I-D Action: draft-ietf-idr-rfc5575bis-00.txt
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Hi, There are 5 basic actions (extended community sub-type 6,7,8,9,TBD = traffic-rate-bytes, traffic-action, redirect, traffic-marking, traffic-rate-packets). However for the redirect action there exist 3 different route-target encoding formats (extended community sub-type 0x08 + type 0x80, 0x81 and 0x82): | 0x8008 | redirect AS-2byte | 2-octet AS, 4-octet value | | 0x8108 | redirect IPv4 | 4-octet IPv4 addres, 2-octet | | | | value | | 0x8208 | redirect AS-4byte | 4-octet AS, 2-octet value | These three encoding formats are explained in our draft section 7.4 (IP Redirect sub-type 0x08) and basically use the same encoding as described in RFC 4360 and RFC 5668. Do you think that additional clarification or a cross-reference from the table to this secion is needed for each action? Cheers, Christoph > On 3 Mar 2017, at 10:43, lizhenqiang@chinamobile.com wrote: > > Hi, > > I am reading this draft. I noticed that there are 7 actions listed in table 2. But Only 5 of them are illustrated in section 7. Actions for type 0x8108 and 0x8208 are not explained in this section. No references are given here. May I know the reason? Thanks. > > Best Regards, > lizhenqiang@chinamobile.com <mailto:lizhenqiang@chinamobile.com> > > From: internet-drafts@ietf.org <mailto:internet-drafts@ietf.org> > Date: 2017-02-23 19:23 > To: i-d-announce@ietf.org <mailto:i-d-announce@ietf.org> > CC: idr@ietf.org <mailto:idr@ietf.org> > Subject: [Idr] I-D Action: draft-ietf-idr-rfc5575bis-00.txt > > A New Internet-Draft is available from the on-line Internet-Drafts directories. > This draft is a work item of the Inter-Domain Routing of the IETF. > > Title : Dissemination of Flow Specification Rules > Authors : Susan Hares > Robert Raszuk > Danny McPherson > Christoph Loibl > Martin Bacher > Filename : draft-ietf-idr-rfc5575bis-00.txt > Pages : 30 > Date : 2017-02-22 > > Abstract: > This document updates RFC5575 which defines a Border Gateway Protocol > Network Layer Reachability Information (BGP NLRI) encoding format > that can be used to distribute traffic flow specifications. This > allows the routing system to propagate information regarding more > specific components of the traffic aggregate defined by an IP > destination prefix. This draft specifies IPv4 traffic flow > specifications via a BGP NLRI which carries traffic flow > specification filter, and an Extended community value which encodes > actions a routing system can take if the packet matches the traffic > flow filters. The flow filters and the actions are processed in a > fixed order. Other drafts specify IPv6, MPLS addresses, L2VPN > addresses, and NV03 encapsulation of IP addresses. > > This document updates RFC5575 to correct unclear specifications in > the flow filters and to provide rules for actions which interfere > (e.g. redirection of traffic and flow filtering). > > Applications which use the bgp flow specification are: 1) application > which automate of inter-domain coordination of traffic filtering, > such as what is required in order to mitigate (distributed) denial- > of-service attacks; 2) application which control traffic filtering in > the context of a BGP/MPLS VPN service, and 3) applications with > centralized control of traffic in a SDN or NFV context. Some of > deployments of these three applications can be handled by the strict > ordering of the BGP NLRI traffic flow filters, and the strict actions > encoded in the Extended Community Flow Specification actions. > > > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-ietf-idr-rfc5575bis/ <https://datatracker.ietf.org/doc/draft-ietf-idr-rfc5575bis/> > > There's also a htmlized version available at: > https://tools.ietf.org/html/draft-ietf-idr-rfc5575bis-00 <https://tools.ietf.org/html/draft-ietf-idr-rfc5575bis-00> > > > Please note that it may take a couple of minutes from the time of submission > until the htmlized version and diff are available at tools.ietf.org <http://tools.ietf.org/>. > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ <ftp://ftp.ietf.org/internet-drafts/> > > _______________________________________________ > Idr mailing list > Idr@ietf.org <mailto:Idr@ietf.org> > https://www.ietf.org/mailman/listinfo/idr <https://www.ietf.org/mailman/listinfo/idr> > > _______________________________________________ > Idr mailing list > Idr@ietf.org <mailto:Idr@ietf.org> > https://www.ietf.org/mailman/listinfo/idr <https://www.ietf.org/mailman/listinfo/idr> -- Christoph Loibl c@tix.at <mailto:c@tix.at> | CL8-RIPE | PGP-Key-ID: 0x4B2C0055 | http://www.nextlayer.at <http://www.nextlayer.at/>
- [Idr] I-D Action: draft-ietf-idr-rfc5575bis-00.txt internet-drafts
- Re: [Idr] I-D Action: draft-ietf-idr-rfc5575bis-0… lizhenqiang@chinamobile.com
- Re: [Idr] I-D Action: draft-ietf-idr-rfc5575bis-0… Christoph Loibl
- Re: [Idr] I-D Action: draft-ietf-idr-rfc5575bis-0… lizhenqiang@chinamobile.com
- Re: [Idr] I-D Action: draft-ietf-idr-rfc5575bis-0… Christoph Loibl