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| Betreff: non forwarding/filtering BGP Communities to AS3214 xTom causes DECIX looking glass filter error
Gepostet von Maximilian Baehring am Mittwoch, Februar 5., 2025 (06:51) *** Hello! Your BGP-Community Passthrough Policy is understood. So to avoid the DeCIX looking glass error message would you please be so kaind and add ON YOUR SIDE (WHERE "THEY" ALLOW IT) the community 3214:2000 (frankfurt), (optionally 3214:2100 duesseldorf not seems to be the problem) 3214:2200 (hamburg), 3214:2400 (munich), for my IPv4 route 193.109.132.0/23 orginating in AS21158? If you use something like bird the following pesudo config for exported routes should work: if (bgp_path ~ [= 21158 * =]) then { bgp_community.add((3214:2000)); # bgp_community.add((3214:2100)); bgp_community.add((3214:2200)); bgp_community.add((3214:2400)); } the AS3214 xTom communities are documented in ripe-db https://apps.db.ripe.net/db-web-ui/lookup?source=ripe&key=AS3214&type=aut-num 3214:2n0x (n: frankfurt=0, duesseldorf=1, hamburg=2, munich=3) AS prepend (x=1 2,3) times or (x=0) for do not announce) DeCIX Gepostet von *** am Mittwoch, Februar 5., 2025 (00:43) *** Hi Maximilian, Yes, xTom ask us to don't let downstream use their community. So, we filter 3214* out, others one is allowed. Best regards, *** Gepostet von Maximilian Baehring am Mittwoch, Februar 5., 2025 (00:08) *** Hello please see the attached screenshot of the ULR-link https://lg.de-cix.net/search/?q=193.109.132.0%2F23 I tried to fix that myself by adding bgp communities AS3214 xTom: https://apps.db.ripe.net/db-web-ui/lookup?source=ripe&key=AS3214&type=aut-num 3214:2n0x (n: frankfurt=0, duesselforf=1, hamburg=2, munich=3) AS prepend (x=1 2,3) times or (x=0) for do not announce) DeCIX here is the output fo my router show route export as*** all 193.109.132.0/23 via 193.109.133.249 on as*** [as21158 2025-01-24] * (100) [AS21158i] Type: BGP unicast univ BGP.origin: IGP BGP.as_path: 21158 BGP.next_hop: *** BGP.med: 0 BGP.local_pref: 100 BGP.community: (3214,2000) (3214,2100) (3214,2200) (3214,2300) you seem not to forward this communities to your AS3214 peer, am I right? Max IP-Adresse: *** Anhänge (1) 20250204-AS***-AS3214.jpg -------- Nachricht -------- Betreff: [Ticket ID: FHV-713577] non forwarding/filtering BGP Communities to AS3214 xTom causes DECIX looking glass filter error Datum: Wed, 5 Feb 2025 00:08:32 +0100 Von: ***Systems Tech <noreply@***> Antwort an: ***Systems Tech <noreply@***> An: Maximilian Baehring <maximilian.baehring@***> ***Systems < ...> *Please reply via the website only, otherwise your message will not be processed. * /*----------------------------------------------*/ Maximilian Baehring, Thank you for contacting our support team. A support ticket has now been opened for your request. You will be notified when a response is made by email. The details of your ticket are shown below. Subject: non forwarding/filtering BGP Communities to AS3214 xTom causes DECIX looking glass filter error Priority: Medium Status: Open You can view the ticket at any time at https://***FHV-713577*** < ** *> --- ***Systems *** [...] | |