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   AS6447 BGP Routing Table Analysis Report
   
  BGP data obtained from AS6447
Report last updated at Mon Feb 24 02:00:00 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)1028333   Change in FIB Size-23   Change (%)-0.002
    All BGP entries (RIB)21424789
    RIB/FIB ratio (21424789/1028333)20.8345
      Valid entries21424789
      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)3116386912
    Total address space advertised (prefix length)0.46277279
    Percentage of IPv4 space advertised (3116386912/4294967295)72.559037
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3031
    Average address span (as prefix size)20.4349
Average prefix length22.9213

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 aggregates552246       Specifics as % of FIB entries (552246/1028333)53.7030
    Specifics as % of address span (1183665316/3116386912)37.9820    
    Specifics where AS prepended Path matches aggregate226239         AS-P_Path-Match % (226239/552246)40.97
    AS Path matches aggregate234721         AS-Path-Match % (234721/552246)42.5030
    AS Origin matches aggregate420003         AS-Origin-Match % (420003/552246)76.0536
    Root Prefixes476087
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0417498
      Root Prefixes with depth 146676
      Root Prefixes with depth 29644
      Root Prefixes with depth 31711
      Root Prefixes with depth 4431
      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 ASes77217       ASes visible in only one AS path45231
    Origin only ASes64743         Origin ASs announced via a single AS path44068
    Transit only ASes640       Originating AS ATOM count76577
    Mixed ASes11834         Originating AS ATOM compression0.0745
    Multi-Origin Prefixes5285    
    ASes originating a single prefix26517    
    Average FIB entries per Origin AS13.4287         Maximum entries for an origin AS (AS58224)1346
    Average address range span for an origin AS40696.1217         Maximum address range for an origin AS (AS749)228351488

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 Paths2568792       Unique AS prepended Paths2768372
AS Paths used in FIB132821       AS Paths using prepending720523
    AS paths associated with a single FIB entry63878       AS Paths using private ASs200
    Average AS path length3.8840       Number of Prefixes with Selected AS Prepending Paths113831
      Maximum AS Path length15       Number of Prefixes with AS Prepending Paths113831
    Average address weighted AS path length4.9025       Maximum prepended AS Path length118
    Average entries per AS Path0.4003       Average entries per FIB AS Path7.7422
    AS Paths per origin AS33.5452       FIB AS Paths per origin AS1.7345
      AS PATH ATOM compression0.1292    

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 /1614100       % Prefix /161.37
    Prefix count /178576       % Prefix /170.83
    Prefix count /1814256       % Prefix /181.39
    Prefix count /1925462       % Prefix /192.48
    Prefix count /2046151       % Prefix /204.49
    Prefix count /2154840       % Prefix /215.33
    Prefix count /22116203       % Prefix /2211.30
    Prefix count /23110172       % Prefix /2310.71
    Prefix count /24630772       % Prefix /2461.34
    Prefix count /25601       % Prefix /250.06
    Prefix count /26589       % 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 /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 /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 /1611066       % Prefix /162.32
    Prefix count /174453       % Prefix /170.94
    Prefix count /186919       % Prefix /181.45
    Prefix count /1914824       % Prefix /193.11
    Prefix count /2019062       % Prefix /204.00
    Prefix count /2122385       % Prefix /214.70
    Prefix count /2259493       % Prefix /2212.50
    Prefix count /2342299       % Prefix /238.88
    Prefix count /24291766       % Prefix /2461.28
    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 1160255796       % Addresses at AS distance 13151.6
    Addresses at AS distance 22137818591       % Addresses at AS distance 242042.2
    Addresses at AS distance 31576323229       % Addresses at AS distance 330999.9
    Addresses at AS distance 4342859265       % Addresses at AS distance 46742.7
    Addresses at AS distance 562268338       % Addresses at AS distance 51224.6
    Addresses at AS distance 613238689       % Addresses at AS distance 6260.4
    Addresses at AS distance 77217920       % Addresses at AS distance 7141.9
    Addresses at AS distance 864512       % Addresses at AS distance 81.3
    Addresses at AS distance 94352       % Addresses at AS distance 90.1
    Addresses at AS distance 10512       % Addresses at AS distance 100.0
    Addresses at AS distance 111024       % 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
     
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 hops160255796       % Addresses reachable within 1 AS hops3151
    Addresses reachable within 2 AS hops2298074387       % Addresses reachable within 2 AS hops45193
    Addresses reachable within 3 AS hops3874397616       % Addresses reachable within 3 AS hops76193
    Addresses reachable within 4 AS hops4217256881       % Addresses reachable within 4 AS hops82936
    Addresses reachable within 5 AS hops4279525219       % Addresses reachable within 5 AS hops84160
    Addresses reachable within 6 AS hops4292763908       % Addresses reachable within 6 AS hops84421
    Addresses reachable within 7 AS hops5014532       % Addresses reachable within 7 AS hops98
    Addresses reachable within 8 AS hops5079044       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops5083396       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops5083908       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops5084932       % Addresses reachable within 11 AS hops100
    Addresses reachable within 12 AS hops5084932       % Addresses reachable within 12 AS hops100
    Addresses reachable within 13 AS hops5084932       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops5084932       % Addresses reachable within 14 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 hops15546       % ASes reachable at 2 AS hops20
    ASes reachable at 3 AS hops46477       % ASes reachable at 3 AS hops60
    ASes reachable at 4 AS hops11964       % ASes reachable at 4 AS hops15
    ASes reachable at 5 AS hops2529       % ASes reachable at 5 AS hops3
    ASes reachable at 6 AS hops481       % ASes reachable at 6 AS hops0
    ASes reachable at 7 AS hops179       % ASes reachable at 7 AS hops0
    ASes reachable at 8 AS hops12       % 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 hops1       % 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
     
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 hops15573       Cumulative % ASes by AS hops 220.2
    ASes reachable by 3 AS hops62050       Cumulative % ASes by AS hops 380.4
    ASes reachable by 4 AS hops74014       Cumulative % ASes by AS hops 495.9
    ASes reachable by 5 AS hops76543       Cumulative % ASes by AS hops 599.1
    ASes reachable by 6 AS hops77024       Cumulative % ASes by AS hops 699.8
    ASes reachable by 7 AS hops77203       Cumulative % ASes by AS hops 7100.0
    ASes reachable by 8 AS hops77215       Cumulative % ASes by AS hops 8100.0
    ASes reachable by 9 AS hops77215       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops77216       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops77217       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops77217       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops77217       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops77217       Cumulative % ASes by AS hops 14100.0

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 /12237       % AS's announcing span of /120.0031
    AS's announcing span of /13408       % AS's announcing span of /130.0053
    AS's announcing span of /14842       % AS's announcing span of /140.0110
    AS's announcing span of /151674       % AS's announcing span of /150.0219
    AS's announcing span of /161796       % AS's announcing span of /160.0235
    AS's announcing span of /172472       % 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 /195128       % AS's announcing span of /190.0672
    AS's announcing span of /207767       % AS's announcing span of /200.1018
    AS's announcing span of /2110396       % AS's announcing span of /210.1363
    AS's announcing span of /2212675       % AS's announcing span of /220.1662
    AS's announcing span of /239758       % AS's announcing span of /230.1279
    AS's announcing span of /2418905       % AS's announcing span of /240.2479
    AS's announcing span of /252       % AS's announcing span of /250.0000
    AS's announcing span of /262       % 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.

ÿÿÿÿÿÿÿÿ°Ö” ÿ ÿÿÿÿÿÿÿÿ°Ö” ÿ ÿÿÿÿÿÿÿÿ°Ö” ÿ
AS Connectivity ReportData
AS Adjacency Count178957
Average AS Connectivity Degree (357914/77217)4.6352
Average AS Connectivity IN:OUT Degree0.2642
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 Path577096Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path563760Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin379766Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation379822Report (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 Mon Feb 24 02:00:00 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