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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Tue Jan 21 00:00:00 2025 (UTC+1000).		  

Active BGP entries (FIB)

Table Size Metrics

The trend of the size of the BGP Forwarding Table (FIB). Also the underlying BGP Routing Table (RIB). The RIB/FIB ratio is a function of the number of BGP peering sessions at the sample point. Some RIB entries are marked as unusable as an outcome of protocol operation, and these categories of unusable advertisements are tracked.

FIB / RIB Table Reports (plots)Data Sets(txt)
Active BGP entries (FIB)1028987   Change in FIB Size51   Change (%)0.005
    All BGP entries (RIB)21362133
    RIB/FIB ratio (21362133/1028987)20.7604
      Valid entries21362133
      Suppressed RIB entries0
      Damped entries0
      History entries0

Address Span Metrics

The total span of address space advertised in the BGP table, and the relationship of this value to the number and size of address prefix objects in the table.

Address Space Reports (plots)Data Sets(txt)
Total address space advertised (/32 equiv)3124765558
    Total address space advertised (prefix length)0.45889919
    Percentage of IPv4 space advertised (3124765558/4294967295)72.754118
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3037
    Average address span (as prefix size)20.4320
Average prefix length22.9340

More Specifics

The characteristics of more specific advertisements - where an advertisement is associated with a sub-span of address space of another advertisement. The metrics also look at the degree of similarity of the AS paths of the specific advertisements to the encompassing aggregate.

More-Specific Advertisement Reports (plots)Data Sets(txt)  Percentage Reports (plots)Data Sets(txt)
Entries advertising more specific prefixes of aggregates556826       Specifics as % of FIB entries (556826/1028987)54.1140
    Specifics as % of address span (1199943829/3124765558)38.4011    
    Specifics where AS prepended Path matches aggregate221443         AS-P_Path-Match % (221443/556826)39.77
    AS Path matches aggregate229854         AS-Path-Match % (229854/556826)41.2793
    AS Origin matches aggregate424097         AS-Origin-Match % (424097/556826)76.1633
    Root Prefixes472161
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0413496
      Root Prefixes with depth 146664
      Root Prefixes with depth 29629
      Root Prefixes with depth 31767
      Root Prefixes with depth 4471
      Root Prefixes with depth 599
      Root Prefixes with depth 629
      Root Prefixes with depth 75
      Root Prefixes with depth 81

AS Numbers

The time trend of the number of unique AS numbers advertised within the BGP table. The associated metrics characterise AS's into origin only, transit only, or mixed (origin and transit), and also look at the trends of advertised address space as related to the number of ASes.

AS Reports (plots)Data Sets(txt)  Additional Reports (plots)Data Sets(txt)
Unique ASes77121       ASes visible in only one AS path44795
    Origin only ASes64618         Origin ASs announced via a single AS path43644
    Transit only ASes636       Originating AS ATOM count76485
    Mixed ASes11867         Originating AS ATOM compression0.0743
    Multi-Origin Prefixes5070    
    ASes originating a single prefix26502    
    Average FIB entries per Origin AS13.4534         Maximum entries for an origin AS (AS58224)1352
    Average address range span for an origin AS40854.6193         Maximum address range for an origin AS (AS749)228418048

AS Paths

The time trend of the number of unique AS Paths advertised within the BGP table. The associated metrics look at trends of average path length, and BGP table entries per path.

AS Reports (plots)Data Sets(txt)  Additional Reports (plots)Data Sets(txt)
Unique AS Paths2570956       Unique AS prepended Paths2769376
AS Paths used in FIB134147       AS Paths using prepending730096
    AS paths associated with a single FIB entry64811       AS Paths using private ASs199
    Average AS path length3.8850       Number of Prefixes with Selected AS Prepending Paths112299
      Maximum AS Path length16       Number of Prefixes with AS Prepending Paths112299
    Average address weighted AS path length4.9221       Maximum prepended AS Path length107
    Average entries per AS Path0.4002       Average entries per FIB AS Path7.6706
    AS Paths per origin AS33.6139       FIB AS Paths per origin AS1.7539
      AS PATH ATOM compression0.1304    

Prefix Length Distributions

The time trend of the distribution of BGP Table entries by address prefix length.

Prefix Length Reports (plots)Data Sets(txt)  Percentage Reports (plots)Data Sets(txt)
Prefix Count(data)   % Prefix distribution(data)
    Prefix count /816       % Prefix /80.00
    Prefix count /916       % Prefix /90.00
    Prefix count /1042       % Prefix /100.00
    Prefix count /1193       % Prefix /110.01
    Prefix count /12312       % Prefix /120.03
    Prefix count /13592       % Prefix /130.06
    Prefix count /141241       % Prefix /140.12
    Prefix count /152214       % Prefix /150.22
    Prefix count /1614149       % Prefix /161.38
    Prefix count /178562       % Prefix /170.83
    Prefix count /1814720       % Prefix /181.43
    Prefix count /1925614       % Prefix /192.49
    Prefix count /2046304       % Prefix /204.50
    Prefix count /2155144       % Prefix /215.36
    Prefix count /22116432       % Prefix /2211.32
    Prefix count /23110234       % Prefix /2310.71
    Prefix count /24627129       % Prefix /2460.95
    Prefix count /25650       % Prefix /250.06
    Prefix count /26640       % Prefix /260.06
    Prefix count /271187       % Prefix /270.12
    Prefix count /28223       % Prefix /280.02
    Prefix count /29378       % Prefix /290.04
    Prefix count /30249       % Prefix /300.02
    Prefix count /311257       % Prefix /310.12
    Prefix count /321589       % Prefix /320.15

Root Prefix Length Distributions

The time trend of the distribution of Root BGP Table entries by address prefix length.

Root Prefix Length Reports (plots)Data Sets(txt)  Percentage Reports (plots)Data Sets(txt)
Root Prefix Count(data)   % Prefix distribution(data)
    Prefix count /816       % Prefix /80.00
    Prefix count /99       % Prefix /90.00
    Prefix count /1042       % Prefix /100.01
    Prefix count /1186       % Prefix /110.02
    Prefix count /12275       % Prefix /120.06
    Prefix count /13493       % Prefix /130.10
    Prefix count /141044       % Prefix /140.22
    Prefix count /151672       % Prefix /150.35
    Prefix count /1611053       % Prefix /162.34
    Prefix count /174452       % Prefix /170.94
    Prefix count /186922       % Prefix /181.47
    Prefix count /1914827       % Prefix /193.14
    Prefix count /2018978       % Prefix /204.02
    Prefix count /2122350       % Prefix /214.73
    Prefix count /2259214       % Prefix /2212.54
    Prefix count /2341993       % Prefix /238.89
    Prefix count /24288517       % Prefix /2461.11
    Prefix count /25197       % Prefix /250.04
    Prefix count /264       % Prefix /260.00
    Prefix count /274       % Prefix /270.00
    Prefix count /286       % Prefix /280.00
    Prefix count /290       % Prefix /290.00
    Prefix count /304       % Prefix /300.00
    Prefix count /313       % Prefix /310.00
    Prefix count /320       % Prefix /320.00

AS Diameter Reports

The time trend of the reacahbility of addresses and AS's using AS distance from the sample point to the origin AS as the diameter metric.

AS Diameter Reports (plots)Data Sets(txt)  Percentage Reports (plots)Data Sets(txt)
Addresses by AS distance(data)   Address percentage by AS distance(data)
    Addresses at AS distance 00       % Addresses at AS distance 00.0
    Addresses at AS distance 1160904489       % Addresses at AS distance 1541.0
    Addresses at AS distance 22149754743       % Addresses at AS distance 27228.0
    Addresses at AS distance 31584751786       % Addresses at AS distance 35328.3
    Addresses at AS distance 4339697488       % Addresses at AS distance 41142.1
    Addresses at AS distance 563913664       % Addresses at AS distance 5214.9
    Addresses at AS distance 617380001       % Addresses at AS distance 658.4
    Addresses at AS distance 77978000       % Addresses at AS distance 726.8
    Addresses at AS distance 8304640       % Addresses at AS distance 81.0
    Addresses at AS distance 99216       % Addresses at AS distance 90.0
    Addresses at AS distance 108960       % Addresses at AS distance 100.0
    Addresses at AS distance 116400       % Addresses at AS distance 110.0
    Addresses at AS distance 120       % Addresses at AS distance 120.0
    Addresses at AS distance 130       % Addresses at AS distance 130.0
    Addresses at AS distance 140       % Addresses at AS distance 140.0
    Addresses at AS distance 150       % Addresses at AS distance 150.0
     
Cumulative Address by AS distance(data)   Cumulative % Address by AS distance(data)
    Addresses reachable within 0 AS hops0       % Addresses reachable within 0 AS hops0
    Addresses reachable within 1 AS hops160904489       % Addresses reachable within 1 AS hops540
    Addresses reachable within 2 AS hops2310659232       % Addresses reachable within 2 AS hops7768
    Addresses reachable within 3 AS hops3895411018       % Addresses reachable within 3 AS hops13097
    Addresses reachable within 4 AS hops4235108506       % Addresses reachable within 4 AS hops14239
    Addresses reachable within 5 AS hops4054874       % Addresses reachable within 5 AS hops13
    Addresses reachable within 6 AS hops21434875       % Addresses reachable within 6 AS hops72
    Addresses reachable within 7 AS hops29412875       % Addresses reachable within 7 AS hops98
    Addresses reachable within 8 AS hops29717515       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops29726731       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops29735691       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops29742091       % Addresses reachable within 11 AS hops100
    Addresses reachable within 12 AS hops29742091       % Addresses reachable within 12 AS hops100
    Addresses reachable within 13 AS hops29742091       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops29742091       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops29742091       % Addresses reachable within 15 AS hops100
     
ASes by AS distance(data)   % ASes by AS hops(data)
    ASes reachable at 0 AS hops1       % ASes reachable at 0 AS hops0
    ASes reachable at 1 AS hops26       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops15568       % ASes reachable at 2 AS hops20
    ASes reachable at 3 AS hops46257       % ASes reachable at 3 AS hops59
    ASes reachable at 4 AS hops12092       % ASes reachable at 4 AS hops15
    ASes reachable at 5 AS hops2506       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops481       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops173       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops16       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops0       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops1       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops0       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops0       % ASes reachable at 12 AS hops0
    ASes reachable at 13 AS hops0       % ASes reachable at 13 AS hops0
    ASes reachable at 14 AS hops0       % ASes reachable at 14 AS hops0
    ASes reachable at 15 AS hops0       % ASes reachable at 15 AS hops0
     
Cumulative ASes by AS hops(data)   Cumulative % ASes by AS hops(data)
    ASes reachable by 0 AS hops1       Cumulative % ASes by AS hops 00.0
    ASes reachable by 1 AS hops27       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops15595       Cumulative % ASes by AS hops 220.2
    ASes reachable by 3 AS hops61852       Cumulative % ASes by AS hops 380.2
    ASes reachable by 4 AS hops73944       Cumulative % ASes by AS hops 495.9
    ASes reachable by 5 AS hops76450       Cumulative % ASes by AS hops 599.1
    ASes reachable by 6 AS hops76931       Cumulative % ASes by AS hops 699.8
    ASes reachable by 7 AS hops77104       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops77120       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops77120       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops77121       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops77121       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops77121       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops77121       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops77121       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops77121       Cumulative % ASes by AS hops 15100.0

AS Announcement Reports

The time trend of total span of address space advertised by ASes, using truncated prefix length as the span metric.

AS Announcements ReportsData Sets(txt)  Percentage ReportsData
Originating Addresses AS Count(data)   Originating Addresses % AS Count(data)
    AS's announcing span of /42       % AS's announcing span of /40.0000
    AS's announcing span of /55       % AS's announcing span of /50.0001
    AS's announcing span of /610       % AS's announcing span of /60.0001
    AS's announcing span of /723       % AS's announcing span of /70.0003
    AS's announcing span of /845       % AS's announcing span of /80.0006
    AS's announcing span of /974       % AS's announcing span of /90.0010
    AS's announcing span of /10109       % AS's announcing span of /100.0014
    AS's announcing span of /11167       % AS's announcing span of /110.0022
    AS's announcing span of /12241       % AS's announcing span of /120.0032
    AS's announcing span of /13400       % AS's announcing span of /130.0053
    AS's announcing span of /14841       % AS's announcing span of /140.0110
    AS's announcing span of /151681       % AS's announcing span of /150.0221
    AS's announcing span of /161785       % AS's announcing span of /160.0234
    AS's announcing span of /172494       % AS's announcing span of /170.0327
    AS's announcing span of /183758       % AS's announcing span of /180.0493
    AS's announcing span of /195151       % AS's announcing span of /190.0676
    AS's announcing span of /207743       % AS's announcing span of /200.1017
    AS's announcing span of /2110430       % AS's announcing span of /210.1369
    AS's announcing span of /2212620       % AS's announcing span of /220.1657
    AS's announcing span of /239720       % AS's announcing span of /230.1276
    AS's announcing span of /2418853       % AS's announcing span of /240.2475
    AS's announcing span of /253       % AS's announcing span of /250.0000
    AS's announcing span of /263       % AS's announcing span of /260.0000
    AS's announcing span of /272       % AS's announcing span of /270.0000
    AS's announcing span of /282       % AS's announcing span of /280.0000
    AS's announcing span of /290       % AS's announcing span of /290.0000
    AS's announcing span of /301       % AS's announcing span of /300.0000
    AS's announcing span of /311       % AS's announcing span of /310.0000
    AS's announcing span of /322       % AS's announcing span of /320.0000

AS Connectivity Reports

This set of reports lists all visible AS's using a number of ordering criteria. The reports order AS's by the total span of addresses originated by an AS, the total span of addresses reachable via an AS, and the totspan of originating plus transit addresses via each AS. Each AS in an AS path has an adjacent AS closer to the sample point, and an adjacent AS further from the sample point. The number of such pairwise adjacencies is reported for each AS. The average AS Connectivity Degree is the average number of adjacent AS's for an AS.

ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ
AS Connectivity ReportData
AS Adjacency Count178400
Average AS Connectivity Degree (356800/77121)4.6265
Average AS Connectivity IN:OUT Degree0.2671
AS Names
AS's ordered by Originating Address
AS's ordered by Transit Address
AS's ordered by Originating + Transit Address
AS's ordered by AS Adjacency
AS's ordered by Downstream AS Adjacency
AS's ordered by Upstream AS Adjacency
AS Adjacency
Inconsistent Origin AS Prefixes

Aggregation Reports

This set of reports lists all potential aggregation of a number of specific routes into an aggregate route. The aggregation criteria include a match of the original AS path, which may include prepended AS's, a match of the reduced AS Path, and a match on the Origin AS only. As this view is taken from a single sample point, this list is not definitive, and the report will propose potential aggregation actions which may not be feasible for the Origin AS. The report also applies a prefix length filter to all prefixes, accepting only those prefixes which pass the following ruleset:

Aggregation possibilities are identified within this filtered prefix set.

Route Aggregation ReportsData
Aggregation Potential Summary(data)
Aggregation Potential Summary(data)
    Aggregation using prepended AS Path582927Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path570370Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin378142Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation378199Report (sort by %reduction)Report (sort by reduction)BGP Table

BGP Table
BGP Table
Table Summary Report

BGP Report

BGP data obtained from the boundary of AS6447

Report last updated at Tue Jan 21 00:00:00 2025 (UTC+1000).

Data prior to 11 April 97 interpreted from data gathered by Erik-Jan Bos, SURFnet.

BGP table analyser written and maintained by Geoff Huston.

Footnote