Talk Presented at lightning speed Thomas Mangin LINX
![Talk Presented at lightning speed Thomas Mangin – LINX 95 - 21 st and Talk Presented at lightning speed Thomas Mangin – LINX 95 - 21 st and](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-1.jpg)
![BGP LARGE COMMUNITY T F A R D https: //tools. ietf. org/html/draft-heitz-idr-large-community-08 BGP LARGE COMMUNITY T F A R D https: //tools. ietf. org/html/draft-heitz-idr-large-community-08](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-2.jpg)
![NINE years ago at LINX 57 http: //thomas. mangin. com/data/pdf/LINX 57 - Mangin - NINE years ago at LINX 57 http: //thomas. mangin. com/data/pdf/LINX 57 - Mangin -](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-3.jpg)
![Previous attempts to fix the issue (and feature creep) Name Year Code Method Usable Previous attempts to fix the issue (and feature creep) Name Year Code Method Usable](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-4.jpg)
![draft-ietf-idr-large-community-08 Like RFC 1997. . but larger and SIMPLE (from 6, to 8 and draft-ietf-idr-large-community-08 Like RFC 1997. . but larger and SIMPLE (from 6, to 8 and](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-5.jpg)
![When ? When ?](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-6.jpg)
![BGP LARGE COMMUNITIES Implementations. . FIRST OSS IMPLEMENTATION COMPLETE patch by JOB BGP LARGE COMMUNITIES Implementations. . FIRST OSS IMPLEMENTATION COMPLETE patch by JOB](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-7.jpg)
![](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-8.jpg)
![Credits: http: //largebgpcommunities. net/ all you need to know is there ! Thank you: Credits: http: //largebgpcommunities. net/ all you need to know is there ! Thank you:](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-9.jpg)
- Slides: 9
![Talk Presented at lightning speed Thomas Mangin LINX 95 21 st and Talk Presented at lightning speed Thomas Mangin – LINX 95 - 21 st and](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-1.jpg)
Talk Presented at lightning speed Thomas Mangin – LINX 95 - 21 st and 22 nd November
![BGP LARGE COMMUNITY T F A R D https tools ietf orghtmldraftheitzidrlargecommunity08 BGP LARGE COMMUNITY T F A R D https: //tools. ietf. org/html/draft-heitz-idr-large-community-08](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-2.jpg)
BGP LARGE COMMUNITY T F A R D https: //tools. ietf. org/html/draft-heitz-idr-large-community-08
![NINE years ago at LINX 57 http thomas mangin comdatapdfLINX 57 Mangin NINE years ago at LINX 57 http: //thomas. mangin. com/data/pdf/LINX 57 - Mangin -](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-3.jpg)
NINE years ago at LINX 57 http: //thomas. mangin. com/data/pdf/LINX 57 - Mangin - Leak presentation. pdf Still relevant today … Among other things, recommend “community filtering” - tags routes on e. BGP inbound (from transit, peer, etc) - filter on e. BGP outbound (no transit routes for peer) But only if you have a 16 bits ASN Otherwise sorry: you are doomed. . . And you have been since RFC 4893 in 2007. . . TEN years ago
![Previous attempts to fix the issue and feature creep Name Year Code Method Usable Previous attempts to fix the issue (and feature creep) Name Year Code Method Usable](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-4.jpg)
Previous attempts to fix the issue (and feature creep) Name Year Code Method Usable size Document RFC 1997 1996 8 Opaque 32 bits 5 pages RFC 4360 2006 16 Structure 48 bits (64 -16) 12 pages RFC 5668 2009 16 Structure 48 bits 5 pages (define RFC 4360) drah-lange-flexible-bgp-communities 2002 -2010 TBD TLV BIG 21 pages draft-raszuk-wide-bgp-communities 2015 -2016 TBD TLV BIG 26 pages ensus s n o c o n , x Comple mented e l p m i r e v ne
![draftietfidrlargecommunity08 Like RFC 1997 but larger and SIMPLE from 6 to 8 and draft-ietf-idr-large-community-08 Like RFC 1997. . but larger and SIMPLE (from 6, to 8 and](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-5.jpg)
draft-ietf-idr-large-community-08 Like RFC 1997. . but larger and SIMPLE (from 6, to 8 and now 9 pages) 96 bits space (3 x 32 bits) 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Autonomous System Number | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Local Data Part 1 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Local Data Part 2 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ Started September 2016 IANA allocated attribute code 32 Another draft proposing how to use the space draft-snijders-grow-large-communities-usage-00
![When When ?](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-6.jpg)
When ?
![BGP LARGE COMMUNITIES Implementations FIRST OSS IMPLEMENTATION COMPLETE patch by JOB BGP LARGE COMMUNITIES Implementations. . FIRST OSS IMPLEMENTATION COMPLETE patch by JOB](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-7.jpg)
BGP LARGE COMMUNITIES Implementations. . FIRST OSS IMPLEMENTATION COMPLETE patch by JOB
![](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-8.jpg)
![Credits http largebgpcommunities net all you need to know is there Thank you Credits: http: //largebgpcommunities. net/ all you need to know is there ! Thank you:](https://slidetodoc.com/presentation_image_h/2d39e4d6fdc32a752bf1a9435b41f93e/image-9.jpg)
Credits: http: //largebgpcommunities. net/ all you need to know is there ! Thank you: https: //github. com/pierky/bgp-large-communities-playground And everyone who supported the draft on the IETF mailing list (You know who you are – beers are on me Tuesday)