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A study on community-triggered updates in BGP
by Jakob Heitz (jheitz) 20 Oct '20

20 Oct '20

IOS-XR has duplicate update suppression logic for EBGP sessions, not for IBGP sessions. If you are using EBGP and seeing a fault in the duplicate update suppression logic in IOS-XR, please let me know configs and details of the experiment. Regards, Jakob. -----Original Message----- Date: Thu, 15 Oct 2020 18:35:58 -0700 From: Thomas Krenc <tkrenc(a)nps.edu> Dear NANOG, As a team of researchers from NPS and TU Berlin, we are investigating the impact of BGP community attributes on the update behavior between ASes. We find that when a route is associated with multiple distinct community attributes it does not only lead to multiple announcement at the tagging AS, but also at neighboring ASes, if communities are not filtered properly. This behavior is wide-spread. In order to better understand our observations, we have performed a series of laboratory experiments using Cisco IOS, Junos OS, as well as the BIRD daemon. We find that - by default - all tested routers generate announcements with changing community attributes, even when other attributes do not change. In addition, when communities are filtered at egress, Cisco und BIRD send duplicate announcements (Juniper does not). Since our findings are limited to observations in public data as well as few router implementations, we would like to share our research and kindly ask you to have a look at: ??? https://www.cmand.org/communityexploration/ There, we provide some resources documenting our research, as well as open questions. We greatly appreciate any feedback and insights you can offer. Also, please don't hesitate to contact us directly: ??? communityexploration AT cmand DOT org best regards Thomas Krenc Postdoctoral Researcher Naval Postgraduate School

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Recent List Spam
by Bryan Fields 19 Oct '20

19 Oct '20

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Looks like this recent spammer has been removed from the list. They were moderated, and using the email address From: or known users. Thanks, - -- Bryan Fields 727-409-1194 - Voice http://bryanfields.net -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEaESdNosUjpjcN/JhYTmgYVLGkUAFAl+NvKMACgkQYTmgYVLG kUAcGRAAlQ/VmB99Y+by+BPQpNVFnlAHC2vtBz4fqXINHg0rONhsyc6I8RVfvSnN bxrWh5ewduqnQPQzIB14FFMCiNqSQUqro8iYh3bZ/BknQ3nPn82zUjyGD1BQBMUv Iv43O57OGc7rK/z1SS2xzMedmsSdUsRbwEHP2lSWqXvNBWnuG17lC2ITvGf796UR I1BYj/eh5bp262KBDQfTxGuX+4FECVd8aho8wWQxVwJil5R7sMuDpHFn/Ikm1Bde SevZ5JaW4NyX0RxOjGlNWFM7ic76GVxdAj4I3sCkokVkuSf9kh4rNrbU+VFwMJ/h iqR/qCKPEGeDotFj8GpCBogb8ywAzn6wUwKVB5Ax9hWyrolIsxODS939HF1ayVah 9PL6bcVo1yKu458VmV7kdsy16zHGQnMoE0giZfbqQvxyKyE6CzqJnDN7UFfNH+Nv lKxHJwpx7YC2Wr4co7tZrXUSOq2RbyV39BkPetFo8zGy5lqs6vfzDsHwIdAGYkgU 14N45NW/g9sLDxUOso7pT1EsLGpF/Cl86MVp9A8wP4A0U1kqZJbHnWXYloSS0qq5 ideKbex+keLOBuTqbZ2/+NOpi+8C+t8kGdAu+H5Hr/a/wvlD8zMpE9OP1fKbycAk e4HadiStrFj9/PH4CecT4jNc535KcOGePmA6EFOlPMEV//K8L7I= =PfBg -----END PGP SIGNATURE-----

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Re: cheap MPLS router recommendations [ID #5475871x3]
by Brielle 19 Oct '20

19 Oct '20

---- DO NOT EDIT BELOW THIS LINE ---- Assigned to: BuyGoods Support Anyone know what the hell this "BuyGoods" crap is on some of the NANOG messages? On 10/19/2020 9:55 AM, Colton Conor wrote: > BuyGoods > BuyGoods Logo > > > BuyGoods Support > > > > > *Colton Conor* started this conversation > Monday, October 19th, 2020, 11:55am EDT -- Brielle Bruns The Summit Open Source Development Group https://u51012.ct.sendgrid.net/ls/click?upn=kruC0fnA4Hpw17IEn3t97jERGp4RfeN… / https://u51012.ct.sendgrid.net/ls/click?upn=kruC0fnA4Hpw17IEn3t97o-2By2W-2B… I haven't tried one myself, but Dasan Zhone has the M2400 and M3000. Basically, a whitebox with IP Infusion code on it. New, I think the price point is sub $2000 to $4000 new. That's a ton of ports for that price point. Anyone tried these yet?https://u51012.ct.sendgrid.net/ls/click?upn=EhPlf17glKOZNVwhASoWuDgg-2F… On Mon, Oct 19, 2020 at 3:38 AM tim(a)pelican.org wrote: On Saturday, 17 October, 2020 00:41, "Tony Wicks" said: > Well, there is always the MX104 (if you want redundancy) or MX80 if you > dont. That will give you 80gig wire speed just dont load it up with > more than one full table. Bear in mind that the MX80 is now in the EoL process, you have Team BuyGoods ===============================================================================

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cheap MPLS router recommendations [ID #5475871x3]
by Colton Conor 19 Oct '20

19 Oct '20

---- DO NOT EDIT BELOW THIS LINE ---- Assigned to: BuyGoods Support I haven't tried one myself, but Dasan Zhone has the M2400 and M3000. Basically, a whitebox with IP Infusion code on it. New, I think the price point is sub $2000 to $4000 new. That's a ton of ports for that price point. Anyone tried these yet?https://u51012.ct.sendgrid.net/ls/click?upn=EhPlf17glKOZNVwhASoWuDgg-2F… On Mon, Oct 19, 2020 at 3:38 AM tim(a)pelican.org wrote: On Saturday, 17 October, 2020 00:41, "Tony Wicks" said: > Well, there is always the MX104 (if you want redundancy) or MX80 if you > dont. That will give you 80gig wire speed just dont load it up with > more than one full table. Bear in mind that the MX80 is now in the EoL process, you have Team BuyGoods ===============================================================================

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Ohio - Telecom Construction [ID #5475851x3]
by Josh Luthman 19 Oct '20

19 Oct '20

---- DO NOT EDIT BELOW THIS LINE ---- Assigned to: BuyGoods Support Can you be a bit more specific? Josh Luthman 24/7 Help Desk: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Sat, Oct 17, 2020 at 5:34 AM Rod Beck wrote: Please contact me off-list if you have knowledge regarding this subject. Thanks and Be Well, Roderick. Roderick Beck VP of Business Development United Cable Company www.unitedcablecompany.com New York City & Budapest rod.beck(a)unitedcablecompany.com Budapest: 36-70-605-5144 NJ: 908-452-8183 Team BuyGoods ===============================================================================

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Ohio - Telecom Construction
by Rod Beck 19 Oct '20

19 Oct '20

Please contact me off-list if you have knowledge regarding this subject. Thanks and Be Well, Roderick. Roderick Beck VP of Business Development United Cable Company www.unitedcablecompany.com<http://www.unitedcablecompany.com> New York City & Budapest rod.beck(a)unitedcablecompany.com Budapest: 36-70-605-5144 NJ: 908-452-8183 [1467221477350_image005.png]

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Virginia voter registration down due to cable cut [ID #5475615x3]
by Tom Beecher 19 Oct '20

19 Oct '20

---- DO NOT EDIT BELOW THIS LINE ---- Assigned to: BuyGoods Support Again, hopefully Twitter won't fall down again during the evening of November 3rd. The digeratti will lose thier minds. No offense towards our many friends at Twitter, but I think the best thing that could happen would be for Twitter to shut 'er down from November 1 through November 6. Remove one of the primary avenues for rapid disinformation and confusion, and allow tabulations to proceed without extra nonsense. This of course won't happen, but one can dream. On Fri, Oct 16, 2020 at 2:37 AM Sean Donelan wrote: On Tue, 13 Oct 2020, Valdis Kltnieks wrote: > my reaction was more like > > Surprise, surprise, surprise... > S.N.A.F.U. Other SNAFUs, Georgia had technical problems with its voter database systems during the first couple of days of early voting. Expect all sorts of minor problems throughout the election and afterwards. Nonetheless they are unlikely to significantly impact the results (hopefully), but will generate lots of noise. Its not just underfunded state I.T. systems. Even very large social media companies can have technical Oopsies. Again, hopefully Twitter won't fall down again during the evening of November 3rd. The digeratti will lose thier minds. Even if Twitter or another major social media platform does go belly-up, most likely it will be a normal technical problem. Wishing the FBI & CISA & OGAs watch officers a very boring night on November 3rd. In other news, New Zealand is having national elections this weekend. New Zealand is usually ranked in the top 10 best election administrations worldwide. NZ expects to have the majority of ballots counted within 2 hours of their polls closing on Saturday evening. Jealous of the Kiwis and their competently run elections. :-) Team BuyGoods ===============================================================================

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Virginia voter registration down due to cable cut [ID #5475491x3]
by Alain Hebert 19 Oct '20

19 Oct '20

---- DO NOT EDIT BELOW THIS LINE ---- Assigned to: BuyGoods Support Or what Matt? ----- Alain Hebert ahebert(a)pubnix.net PubNIX Inc. 50 boul. St-Charles P.O. Box 26770 Beaconsfield, Quebec H9W 6G7 Tel: 514-990-5911 https://u51012.ct.sendgrid.net/ls/click?upn=kruC0fnA4Hpw17IEn3t97pGHr8E7VyK… Fax: 514-990-9443 On 2020-10-16 19:26, Matt Erculiani wrote: Non-network-related government politics are off-topic for NANOG. Please keep them to yourself. Thanks, -Matt On Fri, Oct 16, 2020 at 2:49 PM Alain Hebert wrote: Hi, Beside being: . a country with 1/10th of the population; . centralized voting rules; . ... PS: And there is a lot in that about the (publicly) unreal amount of insanity being pulled by the GOP this year. ----- Alain Hebert ahebert(a)pubnix.net PubNIX Inc. 50 boul. St-Charles P.O. Box 26770 Beaconsfield, Quebec H9W 6G7 Tel: 514-990-5911 https://u51012.ct.sendgrid.net/ls/click?upn=kruC0fnA4Hpw17IEn3t97pGHr8E7VyK… Fax: 514-990-9443 On 2020-10-16 02:36, Sean Donelan wrote: On Tue, 13 Oct 2020, Valdis Kltnieks wrote: my reaction was more like Surprise, surprise, surprise... S.N.A.F.U. Other SNAFUs, Georgia had technical problems with its voter database systems during the first couple of days of early voting. Expect all sorts of minor problems throughout the election and afterwards. Nonetheless they are unlikely to significantly impact the results (hopefully), but will generate lots of noise. Its not just underfunded state I.T. systems. Even very large social media companies can have technical Oopsies. Again, hopefully Twitter won't fall down again during the evening of November 3rd. The digeratti will lose thier minds. Even if Twitter or another major social media platform does go belly-up, most likely it will be a normal technical problem. Wishing the FBI & CISA & OGAs watch officers a very boring night on November 3rd. In other news, New Zealand is having national elections this weekend. New Zealand is usually ranked in the top 10 best election administrations worldwide. NZ expects to have the majority of ballots counted within 2 hours of their polls closing on Saturday evening. Jealous of the Kiwis and their competently run elections. :-) -- Matt Erculiani ERCUL-ARIN Team BuyGoods ===============================================================================

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Re: Virginia voter registration down due to cable cut
by Alain Hebert 19 Oct '20

19 Oct '20

Or what Matt? ----- Alain Hebert ahebert(a)pubnix.net PubNIX Inc. 50 boul. St-Charles P.O. Box 26770 Beaconsfield, Quebec H9W 6G7 Tel: 514-990-5911 http://www.pubnix.net Fax: 514-990-9443 On 2020-10-16 19:26, Matt Erculiani wrote: > Non-network-related government politics are off-topic for NANOG. > Please keep them to yourself. > > Thanks, > -Matt > > On Fri, Oct 16, 2020 at 2:49 PM Alain Hebert <ahebert(a)pubnix.net > <mailto:ahebert@pubnix.net>> wrote: > > Hi, > > Beside being: > > . a country with 1/10th of the population; > > . centralized voting rules; > > . <yadi yada>... > > > PS: And there is a lot in that <yadi yada> about the > (publicly) unreal amount of insanity being pulled by the GOP this > year. > > ----- > Alain Hebertahebert(a)pubnix.net <mailto:ahebert@pubnix.net> > PubNIX Inc. > 50 boul. St-Charles > P.O. Box 26770 Beaconsfield, Quebec H9W 6G7 > Tel: 514-990-5911http://www.pubnix.net Fax: 514-990-9443 > > On 2020-10-16 02:36, Sean Donelan wrote: >> On Tue, 13 Oct 2020, Valdis Klētnieks wrote: >>> my reaction was more like >>> <voice="Gomer Pyle"> >>> Surprise, surprise, surprise... >>> </voice> >> >> S.N.A.F.U. >> >> Other SNAFUs, Georgia had technical problems with its voter >> database systems during the first couple of days of early voting. >> Expect all sorts of minor problems throughout the election and >> afterwards. Nonetheless they are unlikely to significantly impact >> the results (hopefully), but will generate lots of noise. >> >> Its not just underfunded state I.T. systems. Even very large >> social media companies can have technical Oopsies. Again, >> hopefully Twitter won't fall down again during the evening of >> November 3rd. The digeratti will lose thier minds. >> >> Even if Twitter or another major social media platform does go >> belly-up, most likely it will be a normal technical problem. >> Wishing the FBI & CISA & OGAs watch officers a very boring night >> on November 3rd. >> >> >> >> In other news, New Zealand is having national elections this >> weekend. New Zealand is usually ranked in the top 10 best >> election administrations worldwide. NZ expects to have the >> majority of ballots counted within 2 hours of their polls closing >> on Saturday evening. >> >> Jealous of the Kiwis and their competently run elections. :-) > > > > -- > Matt Erculiani > ERCUL-ARIN

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cheap MPLS router recommendations [ID #5475255x3]
by tim＠pelican.org 19 Oct '20

19 Oct '20

---- DO NOT EDIT BELOW THIS LINE ---- Assigned to: BuyGoods Support On Saturday, 17 October, 2020 00:41, "Tony Wicks" said: > Well, there is always the MX104 (if you want redundancy) or MX80 if you > dont. That will give you 80gig wire speed just dont load it up with > more than one full table. Bear in mind that the MX80 is now in the EoL process, you have Team BuyGoods ===============================================================================

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