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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Sun Oct 26 12:00:00 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)1077094   Change in FIB Size-71   Change (%)-0.007
    All BGP entries (RIB)20860063
    RIB/FIB ratio (20860063/1077094)19.3670
      Valid entries20860063
      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)3113210237
    Total address space advertised (prefix length)0.46424414
    Percentage of IPv4 space advertised (3113210237/4294967295)72.485074
    Total address space advertised - corrected to 19 /8s(data)
Average address span 2890
    Average address span (as prefix size)20.5031
Average prefix length22.9683

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 aggregates578397       Specifics as % of FIB entries (578397/1077094)53.6998
    Specifics as % of address span (1141052691/3113210237)36.6520    
    Specifics where AS prepended Path matches aggregate237019         AS-P_Path-Match % (237019/578397)40.98
    AS Path matches aggregate252924         AS-Path-Match % (252924/578397)43.7284
    AS Origin matches aggregate441365         AS-Origin-Match % (441365/578397)76.3083
    Root Prefixes498697
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0439575
      Root Prefixes with depth 147303
      Root Prefixes with depth 29600
      Root Prefixes with depth 31686
      Root Prefixes with depth 4419
      Root Prefixes with depth 581
      Root Prefixes with depth 625
      Root Prefixes with depth 77
      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 ASes78036       ASes visible in only one AS path46561
    Origin only ASes65433         Origin ASs announced via a single AS path45359
    Transit only ASes681       Originating AS ATOM count77355
    Mixed ASes11922         Originating AS ATOM compression0.0718
    Multi-Origin Prefixes6466    
    ASes originating a single prefix26739    
    Average FIB entries per Origin AS13.9240         Maximum entries for an origin AS (AS58224)1158
    Average address range span for an origin AS40245.7532         Maximum address range for an origin AS (AS749)227885568

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 Paths2445963       Unique AS prepended Paths2640213
AS Paths used in FIB130655       AS Paths using prepending701918
    AS paths associated with a single FIB entry62439       AS Paths using private ASs156
    Average AS path length3.8810       Number of Prefixes with Selected AS Prepending Paths115959
      Maximum AS Path length16       Number of Prefixes with AS Prepending Paths115959
    Average address weighted AS path length4.8549       Maximum prepended AS Path length89
    Average entries per AS Path0.4404       Average entries per FIB AS Path8.2438
    AS Paths per origin AS31.6200       FIB AS Paths per origin AS1.6890
      AS PATH ATOM compression0.1213    

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 /914       % Prefix /90.00
    Prefix count /1041       % Prefix /100.00
    Prefix count /1193       % Prefix /110.01
    Prefix count /12301       % Prefix /120.03
    Prefix count /13583       % Prefix /130.05
    Prefix count /141213       % Prefix /140.11
    Prefix count /152163       % Prefix /150.20
    Prefix count /1613894       % Prefix /161.29
    Prefix count /178436       % Prefix /170.78
    Prefix count /1813959       % Prefix /181.30
    Prefix count /1925510       % Prefix /192.37
    Prefix count /2046580       % Prefix /204.32
    Prefix count /2154776       % Prefix /215.09
    Prefix count /22116910       % Prefix /2210.85
    Prefix count /23113228       % Prefix /2310.51
    Prefix count /24676407       % Prefix /2462.80
    Prefix count /25399       % Prefix /250.04
    Prefix count /26561       % Prefix /260.05
    Prefix count /271038       % Prefix /270.10
    Prefix count /2862       % Prefix /280.01
    Prefix count /2988       % Prefix /290.01
    Prefix count /3018       % Prefix /300.00
    Prefix count /314       % Prefix /310.00
    Prefix count /32800       % Prefix /320.07

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 /1186       % Prefix /110.02
    Prefix count /12263       % Prefix /120.05
    Prefix count /13486       % Prefix /130.10
    Prefix count /141025       % Prefix /140.21
    Prefix count /151662       % Prefix /150.33
    Prefix count /1611035       % Prefix /162.21
    Prefix count /174459       % Prefix /170.89
    Prefix count /186964       % Prefix /181.40
    Prefix count /1914908       % Prefix /192.99
    Prefix count /2020524       % Prefix /204.12
    Prefix count /2122834       % Prefix /214.58
    Prefix count /2260101       % Prefix /2212.05
    Prefix count /2344164       % Prefix /238.86
    Prefix count /24309857       % Prefix /2462.13
    Prefix count /256       % Prefix /250.00
    Prefix count /261       % Prefix /260.00
    Prefix count /271       % 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 /32253       % Prefix /320.05

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 1163225020       % Addresses at AS distance 13.8
    Addresses at AS distance 22114553870       % Addresses at AS distance 249.7
    Addresses at AS distance 31546323425       % Addresses at AS distance 336.3
    Addresses at AS distance 4346958504       % Addresses at AS distance 48.2
    Addresses at AS distance 565978299       % Addresses at AS distance 51.6
    Addresses at AS distance 69549698       % Addresses at AS distance 60.2
    Addresses at AS distance 77619584       % Addresses at AS distance 70.2
    Addresses at AS distance 849152       % Addresses at AS distance 80.0
    Addresses at AS distance 93840       % Addresses at AS distance 90.0
    Addresses at AS distance 10256       % 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 131280       % 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 hops163225020       % Addresses reachable within 1 AS hops3
    Addresses reachable within 2 AS hops2277778890       % Addresses reachable within 2 AS hops53
    Addresses reachable within 3 AS hops3824102315       % Addresses reachable within 3 AS hops89
    Addresses reachable within 4 AS hops4171060819       % Addresses reachable within 4 AS hops98
    Addresses reachable within 5 AS hops4237039118       % Addresses reachable within 5 AS hops99
    Addresses reachable within 6 AS hops4246588816       % Addresses reachable within 6 AS hops99
    Addresses reachable within 7 AS hops4254208400       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4254257552       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4254261392       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4254261648       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4254261648       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4254261648       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops4254262928       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops4254262928       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops4254262928       % 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 hops24       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops15412       % ASes reachable at 2 AS hops19
    ASes reachable at 3 AS hops46378       % ASes reachable at 3 AS hops59
    ASes reachable at 4 AS hops13081       % ASes reachable at 4 AS hops16
    ASes reachable at 5 AS hops2414       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops539       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops163       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops7       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops1       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops4       % 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 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 hops25       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops15437       Cumulative % ASes by AS hops 219.8
    ASes reachable by 3 AS hops61815       Cumulative % ASes by AS hops 379.2
    ASes reachable by 4 AS hops74896       Cumulative % ASes by AS hops 496.0
    ASes reachable by 5 AS hops77310       Cumulative % ASes by AS hops 599.1
    ASes reachable by 6 AS hops77849       Cumulative % ASes by AS hops 699.8
    ASes reachable by 7 AS hops78012       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops78019       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops78020       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops78024       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops78028       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops78032       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops78036       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops78036       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops78036       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 /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 /975       % AS's announcing span of /90.0010
    AS's announcing span of /1098       % AS's announcing span of /100.0013
    AS's announcing span of /11175       % AS's announcing span of /110.0023
    AS's announcing span of /12243       % AS's announcing span of /120.0032
    AS's announcing span of /13406       % AS's announcing span of /130.0053
    AS's announcing span of /14844       % AS's announcing span of /140.0110
    AS's announcing span of /151637       % AS's announcing span of /150.0212
    AS's announcing span of /161800       % AS's announcing span of /160.0234
    AS's announcing span of /172473       % AS's announcing span of /170.0321
    AS's announcing span of /183790       % AS's announcing span of /180.0492
    AS's announcing span of /195145       % AS's announcing span of /190.0668
    AS's announcing span of /207847       % AS's announcing span of /200.1018
    AS's announcing span of /2110348       % AS's announcing span of /210.1343
    AS's announcing span of /2212732       % AS's announcing span of /220.1652
    AS's announcing span of /2310027       % AS's announcing span of /230.1301
    AS's announcing span of /2419341       % AS's announcing span of /240.2509
    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 /290       % AS's announcing span of /290.0000
    AS's announcing span of /300       % 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.

ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿÿÿ
AS Connectivity ReportData
AS Adjacency Count175800
Average AS Connectivity Degree (351600/78036)4.5056
Average AS Connectivity IN:OUT Degree0.2513
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 Path594499Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path579161Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin400321Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation400344Report (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 Sun Oct 26 12:00:00 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