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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Sat Feb 22 08:00:00 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)1028046   Change in FIB Size19   Change (%)0.002
    All BGP entries (RIB)21418470
    RIB/FIB ratio (21418470/1028046)20.8342
      Valid entries21418470
      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)3116158560
    Total address space advertised (prefix length)0.46287850
    Percentage of IPv4 space advertised (3116158560/4294967295)72.553720
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3031
    Average address span (as prefix size)20.4344
Average prefix length22.9212

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 aggregates552148       Specifics as % of FIB entries (552148/1028046)53.7085
    Specifics as % of address span (1183464419/3116158560)37.9783    
    Specifics where AS prepended Path matches aggregate226722         AS-P_Path-Match % (226722/552148)41.06
    AS Path matches aggregate235322         AS-Path-Match % (235322/552148)42.6194
    AS Origin matches aggregate419975         AS-Origin-Match % (419975/552148)76.0620
    Root Prefixes475898
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0417319
      Root Prefixes with depth 146667
      Root Prefixes with depth 29637
      Root Prefixes with depth 31718
      Root Prefixes with depth 4430
      Root Prefixes with depth 592
      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 ASes77207       ASes visible in only one AS path45268
    Origin only ASes64731         Origin ASs announced via a single AS path44100
    Transit only ASes637       Originating AS ATOM count76570
    Mixed ASes11839         Originating AS ATOM compression0.0745
    Multi-Origin Prefixes5283    
    ASes originating a single prefix26509    
    Average FIB entries per Origin AS13.4262         Maximum entries for an origin AS (AS58224)1349
    Average address range span for an origin AS40696.8599         Maximum address range for an origin AS (AS749)228351744

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 Paths2570781       Unique AS prepended Paths2769996
AS Paths used in FIB132428       AS Paths using prepending721088
    AS paths associated with a single FIB entry63569       AS Paths using private ASs198
    Average AS path length3.8828       Number of Prefixes with Selected AS Prepending Paths113042
      Maximum AS Path length14       Number of Prefixes with AS Prepending Paths113042
    Average address weighted AS path length4.9013       Maximum prepended AS Path length118
    Average entries per AS Path0.3999       Average entries per FIB AS Path7.7631
    AS Paths per origin AS33.5743       FIB AS Paths per origin AS1.7295
      AS PATH ATOM compression0.1288    

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 /1192       % Prefix /110.01
    Prefix count /12307       % Prefix /120.03
    Prefix count /13588       % Prefix /130.06
    Prefix count /141235       % Prefix /140.12
    Prefix count /152203       % Prefix /150.21
    Prefix count /1614099       % Prefix /161.37
    Prefix count /178578       % Prefix /170.83
    Prefix count /1814252       % Prefix /181.39
    Prefix count /1925439       % Prefix /192.47
    Prefix count /2046118       % Prefix /204.49
    Prefix count /2154849       % Prefix /215.34
    Prefix count /22116218       % Prefix /2211.30
    Prefix count /23110135       % Prefix /2310.71
    Prefix count /24630557       % Prefix /2461.34
    Prefix count /25601       % Prefix /250.06
    Prefix count /26590       % Prefix /260.06
    Prefix count /271051       % Prefix /270.10
    Prefix count /2878       % Prefix /280.01
    Prefix count /29106       % Prefix /290.01
    Prefix count /3023       % Prefix /300.00
    Prefix count /312       % Prefix /310.00
    Prefix count /32851       % 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 /1042       % Prefix /100.01
    Prefix count /1185       % Prefix /110.02
    Prefix count /12270       % Prefix /120.06
    Prefix count /13489       % Prefix /130.10
    Prefix count /141041       % Prefix /140.22
    Prefix count /151667       % Prefix /150.35
    Prefix count /1611064       % Prefix /162.32
    Prefix count /174454       % Prefix /170.94
    Prefix count /186917       % Prefix /181.45
    Prefix count /1914822       % Prefix /193.11
    Prefix count /2019053       % Prefix /204.00
    Prefix count /2122381       % Prefix /214.70
    Prefix count /2259506       % Prefix /2212.50
    Prefix count /2342291       % Prefix /238.89
    Prefix count /24291590       % Prefix /2461.27
    Prefix count /25195       % Prefix /250.04
    Prefix count /262       % 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 1160253748       % Addresses at AS distance 13442.1
    Addresses at AS distance 22139119583       % Addresses at AS distance 245946.4
    Addresses at AS distance 31576141276       % Addresses at AS distance 333854.1
    Addresses at AS distance 4341681665       % Addresses at AS distance 47339.0
    Addresses at AS distance 562008498       % Addresses at AS distance 51331.9
    Addresses at AS distance 613125793       % Addresses at AS distance 6281.9
    Addresses at AS distance 77230208       % Addresses at AS distance 7155.3
    Addresses at AS distance 860160       % Addresses at AS distance 81.3
    Addresses at AS distance 91024       % Addresses at AS distance 90.0
    Addresses at AS distance 10768       % Addresses at AS distance 100.0
    Addresses at AS distance 11256       % 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 hops160253748       % Addresses reachable within 1 AS hops3442
    Addresses reachable within 2 AS hops2299373331       % Addresses reachable within 2 AS hops49388
    Addresses reachable within 3 AS hops3875514607       % Addresses reachable within 3 AS hops83242
    Addresses reachable within 4 AS hops4217196272       % Addresses reachable within 4 AS hops90581
    Addresses reachable within 5 AS hops4279204770       % Addresses reachable within 5 AS hops91913
    Addresses reachable within 6 AS hops4292330563       % Addresses reachable within 6 AS hops92195
    Addresses reachable within 7 AS hops4593475       % Addresses reachable within 7 AS hops98
    Addresses reachable within 8 AS hops4653635       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4654659       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4655427       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4655683       % Addresses reachable within 11 AS hops100
    Addresses reachable within 12 AS hops4655683       % Addresses reachable within 12 AS hops100
    Addresses reachable within 13 AS hops4655683       % 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 hops26       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops15593       % ASes reachable at 2 AS hops20
    ASes reachable at 3 AS hops46491       % ASes reachable at 3 AS hops60
    ASes reachable at 4 AS hops11929       % ASes reachable at 4 AS hops15
    ASes reachable at 5 AS hops2511       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops472       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops168       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops14       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops1       % 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 hops27       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops15620       Cumulative % ASes by AS hops 220.2
    ASes reachable by 3 AS hops62111       Cumulative % ASes by AS hops 380.4
    ASes reachable by 4 AS hops74040       Cumulative % ASes by AS hops 495.9
    ASes reachable by 5 AS hops76551       Cumulative % ASes by AS hops 599.2
    ASes reachable by 6 AS hops77023       Cumulative % ASes by AS hops 699.8
    ASes reachable by 7 AS hops77191       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops77205       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops77206       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops77207       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops77207       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops77207       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops77207       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 /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 /846       % AS's announcing span of /80.0006
    AS's announcing span of /973       % AS's announcing span of /90.0010
    AS's announcing span of /10107       % 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 /12236       % AS's announcing span of /120.0031
    AS's announcing span of /13409       % AS's announcing span of /130.0054
    AS's announcing span of /14843       % AS's announcing span of /140.0111
    AS's announcing span of /151673       % AS's announcing span of /150.0219
    AS's announcing span of /161796       % AS's announcing span of /160.0236
    AS's announcing span of /172470       % AS's announcing span of /170.0324
    AS's announcing span of /183773       % AS's announcing span of /180.0495
    AS's announcing span of /195125       % AS's announcing span of /190.0672
    AS's announcing span of /207771       % AS's announcing span of /200.1019
    AS's announcing span of /2110397       % AS's announcing span of /210.1363
    AS's announcing span of /2212668       % AS's announcing span of /220.1661
    AS's announcing span of /239757       % AS's announcing span of /230.1279
    AS's announcing span of /2418899       % AS's announcing span of /240.2478
    AS's announcing span of /252       % 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 /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.

ÿÿÿÿÿÿÿÿЀžÿ ÿÿÿÿÿÿÿÿЀžÿ ÿÿÿÿÿÿÿÿЀžÿ
AS Connectivity ReportData
AS Adjacency Count178763
Average AS Connectivity Degree (357526/77207)4.6307
Average AS Connectivity IN:OUT Degree0.2641
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 Path576392Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path562933Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin379577Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation379635Report (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 Feb 22 08:00:00 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