BGP Routing Table Report
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- Jayson Barber
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1 BGP Routing Table Report View of the routing table between
2 Objective Analyse changes in global routing table between 2006 to 2016 Analysis is along: 1. Top 5 well connected ASNs 2. Growth of ASNs 3. Growth of Prefixes 4. Changes in across multihomed networks
3 Ranking the top connected networks
4 Networks with the highest adjacencies (IPv4) Year Rank 1 AS701 (2442) AS701 (2720) AS701 (2293) (2656) (2931) (3381) Rank 2 AS7018 (2073) AS7018 (2104) AS7018 (2217) (2476) (2908) (3205) Rank 3 AS1239 (1765) (1854) (2192) AS7018 (2294) AS7018 (2394) AS7018 (2446) Rank 4 (1612) AS1239 (1723) (2184) AS701 (2090) AS701 (1981) AS701 (1929) Rank 5 (1373) (1746) AS1239 (1631) AS1239 (1449) (1563) (1871) * Data belongs to Dec of each year
5 Networks with the highest adjacencies (IPv4) (cont.) Year Rank 1 (3747) (4135) (4489) (4783) (6029) Rank 2 (3480) (3950) (4150) (4321) (5025) Rank 3 (2612) (3190) (3513) (4173) (4680) Rank 4 AS7018 (2428) AS7018 (2431) AS7018 (2393) AS7018 (2422) AS3549 (2699) Rank 5 AS701 (1656) AS4323 (1715) AS4323 (1897) AS4323 (1895) AS7018 (2396) * Data belongs to Dec of each year
6 Year on year IPv4 peering change across the top ASNs
7 Year on Year peering changes between
8 Networks with the highest adjacencies (IPv6) Month Rank 1 AS3257 (144) AS3257 (179) (335) (659) (1106) (1576) Rank 2 AS2914 (115) AS2914 (162) AS3257 (200) AS13030 (330) AS3257 (423) (507) Rank 3 AS30071 (83) (160) AS2914 (191) AS3257 (274) AS13030 (357) (505) Rank 4 AS6175 (75) AS30071 (117) AS3549 (123) AS2914 (210) AS2914 (281) AS13030 (461) Rank 5 AS2497 (65) AS6175 (94) AS30071 (110) AS3549 (148) AS3549 (225) AS3257 (412) * Data belongs to Dec of each year
9 Networks with the highest adjacencies (IPv6) Month Rank 1 (1950) (2218) (2471) (2819) (3589) Rank 2 (737) (1047) (1221) (1341) (1548) Rank 3 (732) (973) (1044) (1146) (1276) Rank 4 AS13030 (514) AS13030 (561) AS2914 (673) AS37100 (839) AS37100 (1073) Rank 5 AS3257 (466) AS2914 (548) AS1299 (602) AS2914 (749) AS1299 (881) * Data belongs to Dec of each year
10 Year on year IPv6 peering changes across the top ASNs
11 Year on Year peering changes between
12 Growth of ASNs between
13 Year on Year growth of ASNs (IPv4) Visible ASNs in Jan 2006: Visible ASNs in Dec 2016: Average change of 14.76% (every year) for an 11 year period
14 Year on Year growth of ASNs (IPv6) Visible ASNs in Jan 2006: 590 Visible ASNs in Dec 2016: Average change of % (every year) for a 11 year period
15 Growth of IPv4 Prefixes Growth of unique IPv4 prefixes visible in the routing table between 2006 to 2016
16 Growth of IPv6 Prefixes Growth of unique IPv6 prefixes visible in the routing table between 2006 to 2016
17 IPv4 vs. IPv6 ASN Comparison
18 Growth of multi-homing
19 Comparison of growth of adjacencies Month 1 Peer 2 Peers 3 Peers 4 Peers 5 Peers Total Visible ASNs Dec Dec Dec Dec Dec Dec Dec Dec Dec Dec Dec
20 Comparison of growth of adjacencies
21 Adjacencies of networks in Middle East Year AS8529 Omantel AS50010 Ooredoo AS8966 Etisalat AS15802 DU AS39386 STC AS35753 ITC Not Visible Not Visible Not Visible Not Visible * Data belongs to Dec of each year
22 Adjacencies of networks in Middle East Year AS8529 Omantel AS50010 Ooredoo AS8966 Etisalat AS15802 DU AS39386 STC AS35753 ITC * Data belongs to Dec of each year
23 How do I get my ASN in the list?
24 How to make the internet better? Follow & promote an open peering policy Peer at Internet Exchange Points (IXPs) Start an IXP in your home region if not there already Use peeringdb to list yourself & search for others Share your routing table to public route collectors - Oregon routeviews, RIPE RIS, PCH collector etc.
25 Conclusions Peering is good! Remember somewhere up the transit path there s peering More peerings = more entry & exit points in backbone gives tremendous flexibility, fewer points of failure, capacity to deal with high amounts of traffic and lot more! IPv6 deployment by global networks needs to accelerate. Remember each IPv6 route origination carries 2^80 addresses at least IPv6 deployments need to be pushed all the way to the network edge to eyeballs to ensure a scalable future of the internet
26 Considerations for the study There can be large content networks which have a very high amount of peering but not visible since neither side dumps data in public route collectors Announcements smaller than /24 in IPv4 and /48 in IPv6 are ignored This study measures adjacencies which includes all three i.e peers, upstream & downstream
27 Thankyou! Questions / Peering? anurag@he.net ASN: 6939 Web: Peeringdb:
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