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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Fri Aug 8 06:00:00 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)1045752   Change in FIB Size-56   Change (%)-0.005
    All BGP entries (RIB)22426821
    RIB/FIB ratio (22426821/1045752)21.4456
      Valid entries22426821
      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)3979017104
    Total address space advertised (prefix length)0.11023505
    Percentage of IPv4 space advertised (3979017104/4294967295)92.643711
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3805
    Average address span (as prefix size)20.1067
Average prefix length22.9431

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 aggregates831809       Specifics as % of FIB entries (831809/1045752)79.5417
    Specifics as % of address span (2413573384/3979017104)60.6575    
    Specifics where AS prepended Path matches aggregate225983         AS-P_Path-Match % (225983/831809)27.17
    AS Path matches aggregate240303         AS-Path-Match % (240303/831809)28.8892
    AS Origin matches aggregate423232         AS-Origin-Match % (423232/831809)50.8809
    Root Prefixes213943
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0188884
      Root Prefixes with depth 120239
      Root Prefixes with depth 24004
      Root Prefixes with depth 3619
      Root Prefixes with depth 4140
      Root Prefixes with depth 541
      Root Prefixes with depth 611
      Root Prefixes with depth 73
      Root Prefixes with depth 82

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 ASes77721       ASes visible in only one AS path44874
    Origin only ASes65136         Origin ASs announced via a single AS path43724
    Transit only ASes671       Originating AS ATOM count77050
    Mixed ASes11914         Originating AS ATOM compression0.0737
    Multi-Origin Prefixes6057    
    ASes originating a single prefix26626    
    Average FIB entries per Origin AS13.5724         Maximum entries for an origin AS (AS58224)1151
    Average address range span for an origin AS51642.0130         Maximum address range for an origin AS (AS208972)2147522816

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 Paths2663223       Unique AS prepended Paths2870420
AS Paths used in FIB137401       AS Paths using prepending753341
    AS paths associated with a single FIB entry67028       AS Paths using private ASs188
    Average AS path length3.8884       Number of Prefixes with Selected AS Prepending Paths113971
      Maximum AS Path length17       Number of Prefixes with AS Prepending Paths113971
    Average address weighted AS path length3.7902       Maximum prepended AS Path length106
    Average entries per AS Path0.3927       Average entries per FIB AS Path7.6109
    AS Paths per origin AS34.5649       FIB AS Paths per origin AS1.7833
      AS PATH ATOM compression0.1314    

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 /11       % Prefix /10.00
    Prefix count /20       % Prefix /20.00
    Prefix count /30       % Prefix /30.00
    Prefix count /40       % Prefix /40.00
    Prefix count /50       % Prefix /50.00
    Prefix count /60       % Prefix /60.00
    Prefix count /70       % Prefix /70.00
    Prefix count /816       % Prefix /80.00
    Prefix count /914       % Prefix /90.00
    Prefix count /1041       % Prefix /100.00
    Prefix count /1192       % Prefix /110.01
    Prefix count /12298       % Prefix /120.03
    Prefix count /13581       % Prefix /130.06
    Prefix count /141219       % Prefix /140.12
    Prefix count /152188       % Prefix /150.21
    Prefix count /1613921       % Prefix /161.33
    Prefix count /178483       % Prefix /170.81
    Prefix count /1814040       % Prefix /181.34
    Prefix count /1925356       % Prefix /192.42
    Prefix count /2046203       % Prefix /204.42
    Prefix count /2154607       % Prefix /215.22
    Prefix count /22115791       % Prefix /2211.07
    Prefix count /23111584       % Prefix /2310.67
    Prefix count /24648220       % Prefix /2461.99
    Prefix count /25416       % Prefix /250.04
    Prefix count /26578       % Prefix /260.06
    Prefix count /271064       % Prefix /270.10
    Prefix count /2873       % Prefix /280.01
    Prefix count /2993       % Prefix /290.01
    Prefix count /3017       % Prefix /300.00
    Prefix count /314       % Prefix /310.00
    Prefix count /32852       % Prefix /320.08

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 /11       % Prefix /10.00
    Prefix count /20       % Prefix /20.00
    Prefix count /30       % Prefix /30.00
    Prefix count /40       % Prefix /40.00
    Prefix count /50       % Prefix /50.00
    Prefix count /60       % Prefix /60.00
    Prefix count /70       % Prefix /70.00
    Prefix count /815       % Prefix /80.01
    Prefix count /97       % Prefix /90.00
    Prefix count /1031       % Prefix /100.01
    Prefix count /1161       % Prefix /110.03
    Prefix count /12189       % Prefix /120.09
    Prefix count /13331       % Prefix /130.15
    Prefix count /14610       % Prefix /140.29
    Prefix count /151030       % Prefix /150.48
    Prefix count /164319       % Prefix /162.02
    Prefix count /172342       % Prefix /171.09
    Prefix count /183518       % Prefix /181.64
    Prefix count /195792       % Prefix /192.71
    Prefix count /209981       % Prefix /204.67
    Prefix count /2110674       % Prefix /214.99
    Prefix count /2225243       % Prefix /2211.80
    Prefix count /2318571       % Prefix /238.68
    Prefix count /24131224       % Prefix /2461.34
    Prefix count /253       % Prefix /250.00
    Prefix count /260       % Prefix /260.00
    Prefix count /270       % Prefix /270.00
    Prefix count /281       % Prefix /280.00
    Prefix count /290       % Prefix /290.00
    Prefix count /300       % Prefix /300.00
    Prefix count /310       % 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 1159757116       % Addresses at AS distance 17.6
    Addresses at AS distance 22107287413       % Addresses at AS distance 2100.5
    Addresses at AS distance 33703974706       % Addresses at AS distance 3176.6
    Addresses at AS distance 4340332376       % Addresses at AS distance 416.2
    Addresses at AS distance 563794876       % Addresses at AS distance 53.0
    Addresses at AS distance 610052769       % Addresses at AS distance 60.5
    Addresses at AS distance 77323648       % Addresses at AS distance 70.3
    Addresses at AS distance 862976       % Addresses at AS distance 80.0
    Addresses at AS distance 92816       % Addresses at AS distance 90.0
    Addresses at AS distance 100       % Addresses at AS distance 100.0
    Addresses at AS distance 11512       % 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 141280       % Addresses at AS distance 140.0
    Addresses at AS distance 150       % Addresses at AS distance 150.0
    Addresses at AS distance 160       % Addresses at AS distance 160.0
     
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 hops159757116       % Addresses reachable within 1 AS hops7
    Addresses reachable within 2 AS hops2267044529       % Addresses reachable within 2 AS hops108
    Addresses reachable within 3 AS hops1676051939       % Addresses reachable within 3 AS hops79
    Addresses reachable within 4 AS hops2016384315       % Addresses reachable within 4 AS hops96
    Addresses reachable within 5 AS hops2080179191       % Addresses reachable within 5 AS hops99
    Addresses reachable within 6 AS hops2090231960       % Addresses reachable within 6 AS hops99
    Addresses reachable within 7 AS hops2097555608       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops2097618584       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops2097621400       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops2097621400       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops2097621912       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops2097621912       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops2097621912       % Addresses reachable within 13 AS hops99
    Addresses reachable within 14 AS hops2097623192       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops2097623192       % Addresses reachable within 15 AS hops100
    Addresses reachable within 16 AS hops2097623192       % Addresses reachable within 16 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 hops15476       % ASes reachable at 2 AS hops19
    ASes reachable at 3 AS hops46183       % ASes reachable at 3 AS hops59
    ASes reachable at 4 AS hops12903       % ASes reachable at 4 AS hops16
    ASes reachable at 5 AS hops2420       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops513       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops167       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops13       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops2       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops1       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops4       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops4       % ASes reachable at 12 AS hops0
    ASes reachable at 13 AS hops4       % ASes reachable at 13 AS hops0
    ASes reachable at 14 AS hops4       % ASes reachable at 14 AS hops0
    ASes reachable at 15 AS hops0       % ASes reachable at 15 AS hops0
    ASes reachable at 16 AS hops0       % ASes reachable at 16 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 hops15503       Cumulative % ASes by AS hops 219.9
    ASes reachable by 3 AS hops61686       Cumulative % ASes by AS hops 379.4
    ASes reachable by 4 AS hops74589       Cumulative % ASes by AS hops 496.0
    ASes reachable by 5 AS hops77009       Cumulative % ASes by AS hops 599.1
    ASes reachable by 6 AS hops77522       Cumulative % ASes by AS hops 699.7
    ASes reachable by 7 AS hops77689       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops77702       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops77704       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops77705       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops77709       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops77713       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops77717       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops77721       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops77721       Cumulative % ASes by AS hops 15100.0
    ASes reachable by 16 AS hops77721       Cumulative % ASes by AS hops 16100.0

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 /611       % AS's announcing span of /60.0001
    AS's announcing span of /720       % AS's announcing span of /70.0003
    AS's announcing span of /844       % 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 /10104       % AS's announcing span of /100.0014
    AS's announcing span of /11170       % AS's announcing span of /110.0022
    AS's announcing span of /12244       % AS's announcing span of /120.0032
    AS's announcing span of /13403       % AS's announcing span of /130.0052
    AS's announcing span of /14841       % AS's announcing span of /140.0110
    AS's announcing span of /151654       % AS's announcing span of /150.0215
    AS's announcing span of /161810       % AS's announcing span of /160.0236
    AS's announcing span of /172440       % AS's announcing span of /170.0318
    AS's announcing span of /183790       % AS's announcing span of /180.0494
    AS's announcing span of /195132       % AS's announcing span of /190.0669
    AS's announcing span of /207862       % AS's announcing span of /200.1024
    AS's announcing span of /2110323       % AS's announcing span of /210.1345
    AS's announcing span of /2212617       % AS's announcing span of /220.1644
    AS's announcing span of /2310002       % AS's announcing span of /230.1303
    AS's announcing span of /2419208       % AS's announcing span of /240.2502
    AS's announcing span of /251       % 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 /283       % AS's announcing span of /280.0000
    AS's announcing span of /291       % 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 /310       % AS's announcing span of /310.0000
    AS's announcing span of /320       % 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.

à†¥¡þ à†¥¡þ à†¥¡þ
AS Connectivity ReportData
AS Adjacency Count182822
Average AS Connectivity Degree (365644/77721)4.7046
Average AS Connectivity IN:OUT Degree0.2719
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 Path597930Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path587084Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin392841Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation392871Report (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 Fri Aug 8 06:00:00 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