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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Sat May 17 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)1035259   Change in FIB Size176   Change (%)0.017
    All BGP entries (RIB)22200853
    RIB/FIB ratio (22200853/1035259)21.4447
      Valid entries22200853
      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)3110551072
    Total address space advertised (prefix length)0.46547695
    Percentage of IPv4 space advertised (3110551072/4294967295)72.423161
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3005
    Average address span (as prefix size)20.4473
Average prefix length22.9327

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 aggregates555179       Specifics as % of FIB entries (555179/1035259)53.6271
    Specifics as % of address span (1166744761/3110551072)37.5093    
    Specifics where AS prepended Path matches aggregate217086         AS-P_Path-Match % (217086/555179)39.10
    AS Path matches aggregate224334         AS-Path-Match % (224334/555179)40.4075
    AS Origin matches aggregate421139         AS-Origin-Match % (421139/555179)75.8564
    Root Prefixes480080
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0421694
      Root Prefixes with depth 146622
      Root Prefixes with depth 29517
      Root Prefixes with depth 31708
      Root Prefixes with depth 4423
      Root Prefixes with depth 586
      Root Prefixes with depth 624
      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 ASes77382       ASes visible in only one AS path44459
    Origin only ASes64903         Origin ASs announced via a single AS path43316
    Transit only ASes645       Originating AS ATOM count76737
    Mixed ASes11834         Originating AS ATOM compression0.0741
    Multi-Origin Prefixes5053    
    ASes originating a single prefix26572    
    Average FIB entries per Origin AS13.4910         Maximum entries for an origin AS (AS58224)1171
    Average address range span for an origin AS40535.2186         Maximum address range for an origin AS (AS749)228086016

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 Paths2651649       Unique AS prepended Paths2857050
AS Paths used in FIB139014       AS Paths using prepending748210
    AS paths associated with a single FIB entry68134       AS Paths using private ASs877
    Average AS path length3.8917       Number of Prefixes with Selected AS Prepending Paths111874
      Maximum AS Path length14       Number of Prefixes with AS Prepending Paths111874
    Average address weighted AS path length4.8854       Maximum prepended AS Path length144
    Average entries per AS Path0.3904       Average entries per FIB AS Path7.4472
    AS Paths per origin AS34.5550       FIB AS Paths per origin AS1.8116
      AS PATH ATOM compression0.1343    

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 /1041       % Prefix /100.00
    Prefix count /1192       % Prefix /110.01
    Prefix count /12299       % Prefix /120.03
    Prefix count /13582       % Prefix /130.06
    Prefix count /141232       % Prefix /140.12
    Prefix count /152200       % Prefix /150.21
    Prefix count /1614092       % Prefix /161.36
    Prefix count /178446       % Prefix /170.82
    Prefix count /1814209       % Prefix /181.37
    Prefix count /1925382       % Prefix /192.45
    Prefix count /2046043       % Prefix /204.45
    Prefix count /2154481       % Prefix /215.26
    Prefix count /22115586       % Prefix /2211.16
    Prefix count /23110329       % Prefix /2310.66
    Prefix count /24638947       % Prefix /2461.72
    Prefix count /25585       % Prefix /250.06
    Prefix count /26586       % Prefix /260.06
    Prefix count /271054       % Prefix /270.10
    Prefix count /2867       % Prefix /280.01
    Prefix count /29105       % Prefix /290.01
    Prefix count /3019       % Prefix /300.00
    Prefix count /313       % Prefix /310.00
    Prefix count /32847       % 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 /816       % Prefix /80.00
    Prefix count /99       % Prefix /90.00
    Prefix count /1041       % Prefix /100.01
    Prefix count /1185       % Prefix /110.02
    Prefix count /12265       % Prefix /120.06
    Prefix count /13487       % Prefix /130.10
    Prefix count /141043       % Prefix /140.22
    Prefix count /151669       % Prefix /150.35
    Prefix count /1611109       % Prefix /162.31
    Prefix count /174462       % Prefix /170.93
    Prefix count /186933       % Prefix /181.44
    Prefix count /1914784       % Prefix /193.08
    Prefix count /2019004       % Prefix /203.96
    Prefix count /2122368       % Prefix /214.66
    Prefix count /2259426       % Prefix /2212.38
    Prefix count /2342831       % Prefix /238.92
    Prefix count /24295353       % Prefix /2461.52
    Prefix count /25188       % Prefix /250.04
    Prefix count /263       % Prefix /260.00
    Prefix count /272       % Prefix /270.00
    Prefix count /282       % 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 1159750908       % Addresses at AS distance 13.7
    Addresses at AS distance 22118252737       % Addresses at AS distance 249.5
    Addresses at AS distance 31579613929       % Addresses at AS distance 336.9
    Addresses at AS distance 4340268768       % Addresses at AS distance 48.0
    Addresses at AS distance 561549235       % Addresses at AS distance 51.4
    Addresses at AS distance 610329760       % Addresses at AS distance 60.2
    Addresses at AS distance 77113472       % Addresses at AS distance 70.2
    Addresses at AS distance 8412672       % Addresses at AS distance 80.0
    Addresses at AS distance 93072       % Addresses at AS distance 90.0
    Addresses at AS distance 101280       % Addresses at AS distance 100.0
    Addresses at AS distance 110       % 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
     
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 hops159750908       % Addresses reachable within 1 AS hops3
    Addresses reachable within 2 AS hops2278003645       % Addresses reachable within 2 AS hops53
    Addresses reachable within 3 AS hops3857617574       % Addresses reachable within 3 AS hops90
    Addresses reachable within 4 AS hops4197886342       % Addresses reachable within 4 AS hops98
    Addresses reachable within 5 AS hops4259435577       % Addresses reachable within 5 AS hops99
    Addresses reachable within 6 AS hops4269765337       % Addresses reachable within 6 AS hops99
    Addresses reachable within 7 AS hops4276878809       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4277291481       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4277294553       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4277295833       % Addresses reachable within 10 AS hops100
    Addresses reachable within 11 AS hops4277295833       % Addresses reachable within 11 AS hops100
    Addresses reachable within 12 AS hops4277295833       % Addresses reachable within 12 AS hops100
    Addresses reachable within 13 AS hops4277295833       % Addresses reachable within 13 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 hops27       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops15347       % ASes reachable at 2 AS hops19
    ASes reachable at 3 AS hops45951       % ASes reachable at 3 AS hops59
    ASes reachable at 4 AS hops12756       % ASes reachable at 4 AS hops16
    ASes reachable at 5 AS hops2554       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops567       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops161       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops14       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops3       % 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
     
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 hops28       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops15375       Cumulative % ASes by AS hops 219.9
    ASes reachable by 3 AS hops61326       Cumulative % ASes by AS hops 379.3
    ASes reachable by 4 AS hops74082       Cumulative % ASes by AS hops 495.7
    ASes reachable by 5 AS hops76636       Cumulative % ASes by AS hops 599.0
    ASes reachable by 6 AS hops77203       Cumulative % ASes by AS hops 699.8
    ASes reachable by 7 AS hops77364       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops77378       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops77381       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops77382       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops77382       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops77382       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops77382       Cumulative % ASes by AS hops 13100.0

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 /721       % 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 /972       % AS's announcing span of /90.0009
    AS's announcing span of /10106       % AS's announcing span of /100.0014
    AS's announcing span of /11169       % AS's announcing span of /110.0022
    AS's announcing span of /12245       % AS's announcing span of /120.0032
    AS's announcing span of /13397       % AS's announcing span of /130.0052
    AS's announcing span of /14838       % AS's announcing span of /140.0110
    AS's announcing span of /151646       % AS's announcing span of /150.0215
    AS's announcing span of /161812       % AS's announcing span of /160.0237
    AS's announcing span of /172453       % AS's announcing span of /170.0321
    AS's announcing span of /183774       % AS's announcing span of /180.0494
    AS's announcing span of /195143       % AS's announcing span of /190.0673
    AS's announcing span of /207786       % AS's announcing span of /200.1019
    AS's announcing span of /2110349       % AS's announcing span of /210.1354
    AS's announcing span of /2212628       % AS's announcing span of /220.1652
    AS's announcing span of /239892       % AS's announcing span of /230.1294
    AS's announcing span of /2419037       % AS's announcing span of /240.2490
    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 /271       % 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 /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 /310       % AS's announcing span of /310.0000
    AS's announcing span of /321       % 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.

pH@!ü pH@!ü pH@!ü
AS Connectivity ReportData
AS Adjacency Count178889
Average AS Connectivity Degree (357778/77382)4.6235
Average AS Connectivity IN:OUT Degree0.2634
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 Path590482Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path583233Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin385379Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation385433Report (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 Sat May 17 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