Policy filtering I described happens on inbound so impact for update generation is null.
Thx, R. On Wed, Mar 13, 2019 at 3:28 PM Yu Tianpeng <yutianpeng.i...@gmail.com> wrote: > Hi authors, > I am wondering what is the impact on update peer groups of use outbound > processing? > Thanks in advance > Regards, > Tim > > On Wed, 13 Mar 2019, 13:30 Robert Raszuk, <rob...@raszuk.net> wrote: > >> Hi, >> >> > But what we refer here to those ASs that have a connection with the >> local AS. >> >> Each decently managed AS today has strong EBGP ingress policy permitting >> only specific prefixes with specific AS-PATH which is applied in ingress to >> ISP network. No more enhancement to this policy is required. >> >> What you are proposing is actually much weaker model as compared to what >> is in place already today by those which care. And those which do not care >> would not apply this scheme anyway. >> >> Many thx, >> R. >> >> >> >> >> >> >> On Wed, Mar 13, 2019 at 11:13 AM Zhuangshunwan <zhuangshun...@huawei.com> >> wrote: >> >>> Hi Robert, >>> >>> >>> >>> Thanks a lot for the comment! >>> >>> >>> >>> Please find reply inlines with [Shunwan]. >>> >>> >>> >>> Best Regards, >>> >>> Shunwan >>> >>> >>> >>> >>> >>> *From:* GROW [mailto:grow-boun...@ietf.org] *On Behalf Of *Robert Raszuk >>> *Sent:* Tuesday, March 12, 2019 7:48 AM >>> *To:* grow@ietf.org >>> *Subject:* Re: [GROW] I-D Action: >>> draft-chen-grow-enhanced-as-loop-detection-00.txt >>> >>> >>> >>> Dear authors of draft-chen-grow-enhanced-as-loop-detection, >>> >>> >>> >>> The draft says: >>> >>> >>> >>> " At this point, AS 200 *can lookup the local resource database* and >>> >>> check whether there is a real AS relationship between the local AS >>> >>> and the left AS and the right AS" >>> >>> >>> >>> Can you please share a pointer to any database or accurate public oracle >>> where anyone could check if peering relation found in the AS-PATH is valid >>> or invalid ? >>> >>> [Shunwan] Sorry, I can't. But what we refer here to those ASs that have >>> a connection with the local AS. >>> >>> From the perspective of the local AS, it can manage/hold the >>> AS-relationship database between the local AS and each of those ASs (such >>> as C2P, P2P, P2C, etc.). >>> >>> >>> >>> Just over the last few months I connected my AS to number of Tier1 ISPs >>> in few of my experimental POPs, but never reported that peering >>> establishment to anyone. Then I have a question - how any (public) database >>> would accurately reflect any global BGP peering relation to be used >>> anywhere for filtering of BGP updates ? >>> >>> [Shunwan] This is indeed a difficult problem to be solved, and we also >>> want to know how to solve it. >>> >>> Thanks again! >>> >>> >>> >>> Kind regards, >>> >>> RR. >>> >>> >>> >>> On Tue, Mar 12, 2019 at 12:27 AM <internet-dra...@ietf.org> wrote: >>> >>> >>> A New Internet-Draft is available from the on-line Internet-Drafts >>> directories. >>> >>> >>> Title : Enhanced AS-Loop Detection for BGP >>> Authors : Huanan Chen >>> Yunan Gu >>> Shunwan Zhuang >>> Haibo Wang >>> Filename : >>> draft-chen-grow-enhanced-as-loop-detection-00.txt >>> Pages : 9 >>> Date : 2019-03-11 >>> >>> Abstract: >>> This document proposes to enhance AS-Loop Detection for BGP Inbound/ >>> Outbound Route Processing. >>> >>> >>> >>> The IETF datatracker status page for this draft is: >>> >>> https://datatracker.ietf..org/doc/draft-chen-grow-enhanced-as-loop-detection/ >>> <https://datatracker.ietf.org/doc/draft-chen-grow-enhanced-as-loop-detection/> >>> >>> There are also htmlized versions available at: >>> https://tools.ietf.org/html/draft-chen-grow-enhanced-as-loop-detection-00 >>> >>> https://datatracker.ietf.org/doc/html/draft-chen-grow-enhanced-as-loop-detection-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. >>> >>> Internet-Drafts are also available by anonymous FTP at: >>> ftp://ftp..ietf.org/internet-drafts/ >>> <ftp://ftp.ietf.org/internet-drafts/> >>> >>> _______________________________________________ >>> I-D-Announce mailing list >>> i-d-annou...@ietf.org >>> https://www.ietf.org/mailman/listinfo/i-d-announce >>> Internet-Draft directories: http://www.ietf.org/shadow.html >>> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt >>> >>> _______________________________________________ >> GROW mailing list >> GROW@ietf.org >> https://www.ietf.org/mailman/listinfo/grow >> >
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