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Hermes SMTP Server) with ESMTPA ID 72a04ab74f4f51ae853b38b24726f7ad; Mon, 02 May 2022 00:11:02 +0000 (UTC) Content-Type: text/plain; charset=us-ascii List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@freebsd.org Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.120.0.1.13\)) Subject: Re: 60+% ping packet loss on Pi3 under -current and stable-13 From: Mark Millard In-Reply-To: <20220501232757.GA15446@www.zefox.net> Date: Sun, 1 May 2022 17:10:59 -0700 Cc: Bakul Shah , freebsd-net@freebsd.org, freebsd-arm@freebsd.org Content-Transfer-Encoding: quoted-printable Message-Id: <2F4599BF-EEDA-4D08-AB6E-7AA9F410B2C5@yahoo.com> References: <20220428023226.GA5666@www.zefox.net> <8A57B411-AA06-47F4-935D-EDF45D8DF0EC@yahoo.com> <70C2DF4B-D08B-491D-B7B5-1EAD0D1BF0E3@yahoo.com> <20220429005206.GA1171@www.zefox.net> <20220430021207.GA7600@www.zefox.net> <20220501181254.GA14961@www.zefox.net> <20220501232757.GA15446@www.zefox.net> To: bob prohaska X-Mailer: Apple Mail (2.3654.120.0.1.13) X-Rspamd-Queue-Id: 4Ks3R34Tdtz4sv2 X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=yahoo.com header.s=s2048 header.b=Xcv4yb+r; dmarc=pass (policy=reject) header.from=yahoo.com; spf=pass (mx1.freebsd.org: domain of marklmi@yahoo.com designates 98.137.69.206 as permitted sender) smtp.mailfrom=marklmi@yahoo.com X-Spamd-Result: default: False [-3.49 / 15.00]; RCVD_TLS_LAST(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; NEURAL_HAM_MEDIUM(-1.00)[-0.995]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; FREEMAIL_FROM(0.00)[yahoo.com]; MV_CASE(0.50)[]; MIME_GOOD(-0.10)[text/plain]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; NEURAL_HAM_LONG(-1.00)[-1.000]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[yahoo.com:+]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; RCVD_IN_DNSWL_NONE(0.00)[98.137.69.206:from]; NEURAL_HAM_SHORT(-1.00)[-0.996]; MLMMJ_DEST(0.00)[freebsd-net]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; ASN(0.00)[asn:36647, ipnet:98.137.64.0/20, country:US]; RCVD_COUNT_TWO(0.00)[2]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[yahoo.com:dkim] X-ThisMailContainsUnwantedMimeParts: N On 2022-May-1, at 16:27, bob prohaska wrote: > On Sun, May 01, 2022 at 12:58:45PM -0700, Mark Millard wrote: >>=20 >> Looks like there is some problem getting past >> gig1-1-1.gw.davsca11.sonic.net . >>=20 >=20 > That seems independent of my own internal connection problems, > but worth taking up with my ISP on Monday. Meanwhile, can you > ping any other hosts in the 50.1.20.31-24 range? All are up > at the moment. Hosts 28 and 24 are the troublemakers.=20 >=20 > If anybody cares there's an ascii-art network diagram at > http://www.zefox.net/~fbsd/netmap >=20 > Not sure it'll survive the mailing list, but here goes: > = dsl_modem-----switch---------router-----lan-------wifi-----pi4_workstation= > | | |=20 > | | |---Mac = workstation > | | > | |------printer > ------------------| > | > |------50.1.20.30 ns1.zefox.net Pi2 12.3 usb-serial----50.1.20.27 > |------50.1.20.29 ns2.zefox.net Pi2 12.3 usb-serial----50.1.20.30 > |------50.1.20.27 www.zefox.net Pi2 12.3 usb-serial----50.1.20.26 > |------50.1.20.26 www.zefox.com Pi2 -current = usb-serial---50.1.20.24 > |------50.1.20.24 pelorus.zefox.org Pi3 13.1 = usb-serial---50.1.20.28 > switch > |------50.1.20.25 nemesis.zefox.com Pi4 -current = usb-serial---50.1.20.29 > |------50.1.20.28 www.zefox.org Pi3 -current = usb-serial----50.1.20.25 For ns1.zefox.net there is no problem and it looks like: My traceroute [v0.95] amd64_ZFS (192.168.1.120) -> ns1.zefox.net (50.1.20.29) = 2022-05-01T16:52:27-0700 Keys: Help Display mode Restart statistics Order of fields quit Packets = Pings Host Loss% Snt Last = Avg Best Wrst StDev 1. 192.168.1.1 0.0% 53 1.2 = 0.8 0.1 1.4 0.4 2. 172.30.26.67 0.0% 53 11.8 = 25.0 11.8 61.0 11.4 3. 68.85.243.125 0.0% 53 10.0 = 10.0 7.7 46.9 5.3 4. 96.216.60.165 0.0% 53 8.8 = 9.3 7.8 12.1 0.9 5. 68.85.243.197 0.0% 53 8.6 = 13.2 8.6 28.3 4.2 6. be-36231-cs03.seattle.wa.ibone.comcast.net 0.0% 53 15.3 = 14.8 13.0 16.9 1.0 7. be-2312-pe12.seattle.wa.ibone.comcast.net 0.0% 53 16.2 = 15.9 12.9 59.8 6.5 8. (waiting for reply) 9. be3717.ccr22.sfo01.atlas.cogentco.com 0.0% 53 29.8 = 30.9 26.5 97.9 10.1 10. be2430.ccr31.sjc04.atlas.cogentco.com 0.0% 53 29.0 = 29.0 26.6 39.3 1.8 11. 38.104.141.82 0.0% 53 28.9 = 33.8 26.1 115.0 17.0 12. 0.xe-0-3-0.scrm-gw1.scrmca01.sonic.net 0.0% 53 32.1 = 31.3 29.2 33.9 1.0 13. 0.xe-0-0-0.cr1.scrmca13.sonic.net 0.0% 53 30.5 = 32.1 29.2 57.6 4.3 14. gig1-1-1.gw.wscrca11.sonic.net 0.0% 53 31.8 = 32.0 28.8 43.7 2.0 15. gig1-1-1.gw.davsca11.sonic.net 0.0% 52 31.0 = 32.4 30.2 38.4 1.4 16. ns1.zefox.net 0.0% 52 51.4 = 51.1 49.8 53.4 0.8 ns2.zefox.net and others got a 17. instead of a 16. An example is: My traceroute [v0.95] amd64_ZFS (192.168.1.120) -> ns2.zefox.net (50.1.20.30) = 2022-05-01T16:58:45-0700 Keys: Help Display mode Restart statistics Order of fields quit Packets = Pings Host Loss% Snt Last = Avg Best Wrst StDev 1. 192.168.1.1 0.0% 55 0.3 = 0.9 0.1 1.4 0.4 2. 172.30.26.66 0.0% 55 13.5 = 26.4 10.4 54.7 10.1 3. 68.85.243.77 0.0% 55 10.5 = 9.1 7.9 10.5 0.6 4. 24.124.129.106 0.0% 54 8.3 = 9.5 8.2 13.4 1.0 5. 96.216.60.165 0.0% 54 8.8 = 9.8 7.8 22.8 2.2 6. 68.85.243.197 0.0% 54 17.1 = 15.1 9.0 37.3 5.9 7. be-36241-cs04.seattle.wa.ibone.comcast.net 0.0% 54 15.2 = 15.0 13.2 17.8 0.9 8. be-2412-pe12.seattle.wa.ibone.comcast.net 0.0% 54 15.0 = 14.8 13.2 17.1 1.0 9. (waiting for reply) 10. be2075.ccr21.sfo01.atlas.cogentco.com 0.0% 54 28.4 = 29.2 26.9 36.8 1.4 11. be2379.ccr31.sjc04.atlas.cogentco.com 0.0% 54 29.8 = 30.0 27.3 84.2 7.6 12. 38.104.141.82 0.0% 54 28.6 = 33.7 27.5 105.5 16.2 13. 0.xe-0-3-0.scrm-gw1.scrmca01.sonic.net 0.0% 54 31.6 = 31.4 29.5 33.8 0.9 14. 0.xe-0-0-0.cr1.scrmca13.sonic.net 0.0% 54 31.1 = 32.1 29.1 52.9 3.4 15. gig1-1-1.gw.wscrca11.sonic.net 0.0% 54 31.2 = 31.9 30.0 34.1 0.9 16. gig1-1-1.gw.davsca11.sonic.net 0.0% 54 33.3 = 32.6 30.8 45.8 2.1 17. ns2.zefox.net 0.0% 54 52.5 = 51.4 49.1 54.9 1.2 The routing need not be the same from one try to the next. www.zefox.net is similar. www.zefox.com is similar. pelorus.zefox.org is similar. nemesis.zefox.com is similar. www.zefox.org is similar. Notably www.zefox.org was what I tried and reported on before that had the failures. I observed a initial connection sequence once for pelorus.zefox.org where it briefly displayed something like (not captured, just from memory): 16. gig1-1-1.gw.davsca11.sonic.net 17. (waiting for reply) 18. (waiting for reply) 19. pelorus.zefox.org before changing to 16. gig1-1-1.gw.davsca11.sonic.net 17. ns2.zefox.net That may be normal but usually timed such that I would not usually see it. But it might actually be evidence of a stage that the leads to the overall failure by never getting past the: 16. gig1-1-1.gw.davsca11.sonic.net 17. (waiting for reply) 18. (waiting for reply) 19. WHATEVER in some cases. However, in the above the below worked fine: 50.1.20.24 pelorus.zefox.org Pi3 13.1 usb-serial---50.1.20.28 50.1.20.28 www.zefox.org Pi3 -current usb-serial----50.1.20.25 What changed? =3D=3D=3D Mark Millard marklmi at yahoo.com