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   AS65000 BGP Routing Table Analysis Report












   
  BGP data obtained from AS65000
Report last updated at Sun Dec 10 13:01:08 2023 (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)941878   Change in FIB Size48   Change (%)0.005
    All BGP entries (RIB)2811729
    RIB/FIB ratio (2811729/941878)2.9852
      Valid entries2811729
      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)3049010688
    Total address space advertised (prefix length)0.49430594
    Percentage of IPv4 space advertised (3049010688/4294967295)70.990312
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3237
    Average address span (as prefix size)20.3396
Average prefix length22.8587

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 aggregates485992       Specifics as % of FIB entries (485992/941878)51.5982
    Specifics as % of address span (1100439760/3049010688)36.0917    
    Specifics where AS prepended Path matches aggregate228555         AS-P_Path-Match % (228555/485992)47.03
    AS Path matches aggregate244031         AS-Path-Match % (244031/485992)50.2130
    AS Origin matches aggregate369441         AS-Origin-Match % (369441/485992)76.0179
    Root Prefixes455886
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0401344
      Root Prefixes with depth 144683
      Root Prefixes with depth 28047
      Root Prefixes with depth 31366
      Root Prefixes with depth 4332
      Root Prefixes with depth 575
      Root Prefixes with depth 629
      Root Prefixes with depth 79
      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 ASes75250       ASes visible in only one AS path46282
    Origin only ASes64332         Origin ASs announced via a single AS path45797
    Transit only ASes480       Originating AS ATOM count74770
    Mixed ASes10438         Originating AS ATOM compression0.0794
    Multi-Origin Prefixes1980    
    ASes originating a single prefix26759    
    Average FIB entries per Origin AS12.5970         Maximum entries for an origin AS (AS7713)3603
    Average address range span for an origin AS40778.5300         Maximum address range for an origin AS (AS749)228560128

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 Paths246226       Unique AS prepended Paths265090
AS Paths used in FIB120650       AS Paths using prepending69568
    AS paths associated with a single FIB entry57488       AS Paths using private ASs39
    Average AS path length5.3508       Number of Prefixes with Selected AS Prepending Paths135878
      Maximum AS Path length13       Number of Prefixes with AS Prepending Paths135878
    Average address weighted AS path length6.7475       Maximum prepended AS Path length57
    Average entries per AS Path3.8253       Average entries per FIB AS Path7.8067
    AS Paths per origin AS3.2931       FIB AS Paths per origin AS1.6136
      AS PATH ATOM compression0.1281    

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 /1038       % Prefix /100.00
    Prefix count /1199       % Prefix /110.01
    Prefix count /12299       % Prefix /120.03
    Prefix count /13584       % Prefix /130.06
    Prefix count /141194       % Prefix /140.13
    Prefix count /152093       % Prefix /150.22
    Prefix count /1613470       % Prefix /161.43
    Prefix count /178329       % Prefix /170.88
    Prefix count /1813883       % Prefix /181.47
    Prefix count /1925209       % Prefix /192.68
    Prefix count /2044544       % Prefix /204.73
    Prefix count /2152099       % Prefix /215.53
    Prefix count /22111270       % Prefix /2211.81
    Prefix count /23100289       % Prefix /2310.65
    Prefix count /24567701       % Prefix /2460.27
    Prefix count /25735       % Prefix /250.08
    Prefix count /260       % Prefix /260.00
    Prefix count /271       % Prefix /270.00
    Prefix count /281       % Prefix /280.00
    Prefix count /291       % Prefix /290.00
    Prefix count /305       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /324       % Prefix /320.00

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 /1038       % Prefix /100.01
    Prefix count /1193       % Prefix /110.02
    Prefix count /12262       % Prefix /120.06
    Prefix count /13484       % Prefix /130.11
    Prefix count /141026       % Prefix /140.23
    Prefix count /151648       % Prefix /150.36
    Prefix count /1610354       % Prefix /162.27
    Prefix count /174459       % Prefix /170.98
    Prefix count /186816       % Prefix /181.50
    Prefix count /1915068       % Prefix /193.31
    Prefix count /2019139       % Prefix /204.20
    Prefix count /2122762       % Prefix /214.99
    Prefix count /2259967       % Prefix /2213.15
    Prefix count /2341773       % Prefix /239.16
    Prefix count /24271964       % Prefix /2459.66
    Prefix count /258       % Prefix /250.00
    Prefix count /260       % Prefix /260.00
    Prefix count /270       % Prefix /270.00
    Prefix count /280       % 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 0256       % Addresses at AS distance 00.0
    Addresses at AS distance 170912       % Addresses at AS distance 10.0
    Addresses at AS distance 2213500950       % Addresses at AS distance 25.1
    Addresses at AS distance 31107787546       % Addresses at AS distance 326.7
    Addresses at AS distance 41816982304       % Addresses at AS distance 443.8
    Addresses at AS distance 5758795776       % Addresses at AS distance 518.3
    Addresses at AS distance 6181545856       % Addresses at AS distance 64.4
    Addresses at AS distance 752049664       % Addresses at AS distance 71.3
    Addresses at AS distance 810743296       % Addresses at AS distance 80.3
    Addresses at AS distance 97792128       % Addresses at AS distance 90.2
    Addresses at AS distance 10168960       % Addresses at AS distance 100.0
    Addresses at AS distance 1112800       % Addresses at AS distance 110.0
    Addresses at AS distance 120       % Addresses at AS distance 120.0
     
Cumulative Address by AS distance(data)   Cumulative % Address by AS distance(data)
    Addresses reachable within 0 AS hops256       % Addresses reachable within 0 AS hops0
    Addresses reachable within 1 AS hops71168       % Addresses reachable within 1 AS hops0
    Addresses reachable within 2 AS hops213572118       % Addresses reachable within 2 AS hops5
    Addresses reachable within 3 AS hops1321359664       % Addresses reachable within 3 AS hops31
    Addresses reachable within 4 AS hops3138341968       % Addresses reachable within 4 AS hops75
    Addresses reachable within 5 AS hops3897137744       % Addresses reachable within 5 AS hops93
    Addresses reachable within 6 AS hops4078683600       % Addresses reachable within 6 AS hops98
    Addresses reachable within 7 AS hops4130733264       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4141476560       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4149268688       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4149437648       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4149450448       % Addresses reachable within 11 AS hops100
    Addresses reachable within 12 AS hops4149450448       % Addresses reachable within 12 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 hops2       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops212       % ASes reachable at 2 AS hops0
    ASes reachable at 3 AS hops7549       % ASes reachable at 3 AS hops10
    ASes reachable at 4 AS hops27176       % ASes reachable at 4 AS hops36
    ASes reachable at 5 AS hops29436       % ASes reachable at 5 AS hops39
    ASes reachable at 6 AS hops8604       % ASes reachable at 6 AS hops11
    ASes reachable at 7 AS hops1742       % ASes reachable at 7 AS hops2
    ASes reachable at 8 AS hops320       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops172       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops32       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops4       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops0       % ASes reachable at 12 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 hops3       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops215       Cumulative % ASes by AS hops 20.3
    ASes reachable by 3 AS hops7764       Cumulative % ASes by AS hops 310.3
    ASes reachable by 4 AS hops34940       Cumulative % ASes by AS hops 446.4
    ASes reachable by 5 AS hops64376       Cumulative % ASes by AS hops 585.5
    ASes reachable by 6 AS hops72980       Cumulative % ASes by AS hops 697.0
    ASes reachable by 7 AS hops74722       Cumulative % ASes by AS hops 799.3
    ASes reachable by 8 AS hops75042       Cumulative % ASes by AS hops 899.7
    ASes reachable by 9 AS hops75214       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops75246       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops75250       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops75250       Cumulative % ASes by AS hops 12100.0

BGP Update Reports

Compares the current BGP Table with the previous table and reports on the number of changes in the FIB. These changes are further categorised into announcements, withdrawls and path changes, and further categorised by prefix length.

FIB Update ReportsData  AnnounceData  WithdrawData  Path ChgData
Table Updates1236   New Entries208   Removed Entries157   Updated Entries871
     Report     Report     Report 
    Address Span1945985       Address Span242176       Address Span1161984       Address Span541825
    Average address span per update1574       Avg Span1164       Avg Span7401       Avg Span622
    Average prefix size updated23.72       Average prefix size23.59       Average prefix size22.78       Average prefix size23.92
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /14 total1         Prefix /14 announcements0         Prefix /14 withdrawals1         Prefix /14 path updates0
      Prefix /15 total1         Prefix /15 announcements0         Prefix /15 withdrawals1         Prefix /15 path updates0
      Prefix /16 total12         Prefix /16 announcements2         Prefix /16 withdrawals8         Prefix /16 path updates2
      Prefix /17 total5         Prefix /17 announcements0         Prefix /17 withdrawals4         Prefix /17 path updates1
      Prefix /18 total3         Prefix /18 announcements0         Prefix /18 withdrawals1         Prefix /18 path updates2
      Prefix /19 total8         Prefix /19 announcements4         Prefix /19 withdrawals2         Prefix /19 path updates2
      Prefix /20 total22         Prefix /20 announcements3         Prefix /20 withdrawals8         Prefix /20 path updates11
      Prefix /21 total27         Prefix /21 announcements3         Prefix /21 withdrawals5         Prefix /21 path updates19
      Prefix /22 total72         Prefix /22 announcements10         Prefix /22 withdrawals2         Prefix /22 path updates60
      Prefix /23 total97         Prefix /23 announcements8         Prefix /23 withdrawals14         Prefix /23 path updates75
      Prefix /24 total724         Prefix /24 announcements178         Prefix /24 withdrawals111         Prefix /24 path updates435
      Prefix /25 total263         Prefix /25 announcements0         Prefix /25 withdrawals0         Prefix /25 path updates263
      Prefix /26 total0         Prefix /26 announcements0         Prefix /26 withdrawals0         Prefix /26 path updates0
      Prefix /27 total0         Prefix /27 announcements0         Prefix /27 withdrawals0         Prefix /27 path updates0
      Prefix /28 total0         Prefix /28 announcements0         Prefix /28 withdrawals0         Prefix /28 path updates0
      Prefix /29 total0         Prefix /29 announcements0         Prefix /29 withdrawals0         Prefix /29 path updates0
      Prefix /30 total0         Prefix /30 announcements0         Prefix /30 withdrawals0         Prefix /30 path updates0
      Prefix /31 total0         Prefix /31 announcements0         Prefix /31 withdrawals0         Prefix /31 path updates0
      Prefix /32 total1         Prefix /32 announcements0         Prefix /32 withdrawals0         Prefix /32 path updates1
Update rate, normalized by prefix count Announce   Withdraw   Path Chg 
      Prefix /8 total0.00         Prefix /8 announcements0.00         Prefix /8 withdrawals0.00         Prefix /8 path updates0.00
      Prefix /9 total0.00         Prefix /9 announcements0.00         Prefix /9 withdrawals0.00         Prefix /9 path updates0.00
      Prefix /10 total0.00         Prefix /10 announcements0.00         Prefix /10 withdrawals0.00         Prefix /10 path updates0.00
      Prefix /11 total0.00         Prefix /11 announcements0.00         Prefix /11 withdrawals0.00         Prefix /11 path updates0.00
      Prefix /12 total0.00         Prefix /12 announcements0.00         Prefix /12 withdrawals0.00         Prefix /12 path updates0.00
      Prefix /13 total0.00         Prefix /13 announcements0.00         Prefix /13 withdrawals0.00         Prefix /13 path updates0.00
      Prefix /14 total0.64         Prefix /14 announcements0.00         Prefix /14 withdrawals5.02         Prefix /14 path updates0.00
      Prefix /15 total0.36         Prefix /15 announcements0.00         Prefix /15 withdrawals2.87         Prefix /15 path updates0.00
      Prefix /16 total0.68         Prefix /16 announcements0.67         Prefix /16 withdrawals3.56         Prefix /16 path updates0.16
      Prefix /17 total0.46         Prefix /17 announcements0.00         Prefix /17 withdrawals2.88         Prefix /17 path updates0.13
      Prefix /18 total0.16         Prefix /18 announcements0.00         Prefix /18 withdrawals0.43         Prefix /18 path updates0.16
      Prefix /19 total0.24         Prefix /19 announcements0.72         Prefix /19 withdrawals0.48         Prefix /19 path updates0.09
      Prefix /20 total0.38         Prefix /20 announcements0.30         Prefix /20 withdrawals1.08         Prefix /20 path updates0.27
      Prefix /21 total0.39         Prefix /21 announcements0.26         Prefix /21 withdrawals0.58         Prefix /21 path updates0.39
      Prefix /22 total0.49         Prefix /22 announcements0.41         Prefix /22 withdrawals0.11         Prefix /22 path updates0.58
      Prefix /23 total0.74         Prefix /23 announcements0.36         Prefix /23 withdrawals0.84         Prefix /23 path updates0.81
      Prefix /24 total0.97         Prefix /24 announcements1.42         Prefix /24 withdrawals1.17         Prefix /24 path updates0.83
      Prefix /25 total272.67         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates386.94
      Prefix /26 total0.00         Prefix /26 announcements100.00         Prefix /26 withdrawals100.00         Prefix /26 path updates100.00
      Prefix /27 total0.00         Prefix /27 announcements0.00         Prefix /27 withdrawals0.00         Prefix /27 path updates0.00
      Prefix /28 total0.00         Prefix /28 announcements0.00         Prefix /28 withdrawals0.00         Prefix /28 path updates0.00
      Prefix /29 total0.00         Prefix /29 announcements0.00         Prefix /29 withdrawals0.00         Prefix /29 path updates0.00
      Prefix /30 total0.00         Prefix /30 announcements0.00         Prefix /30 withdrawals0.00         Prefix /30 path updates0.00
      Prefix /31 total0.00         Prefix /31 announcements100.00         Prefix /31 withdrawals100.00         Prefix /31 path updates100.00
      Prefix /32 total190.51         Prefix /32 announcements0.00         Prefix /32 withdrawals0.00         Prefix /32 path updates270.34

FIB Update Rate Reports
Updates per hour
(Measurement Period 1 hrs 0 mins)
Data  Announce RateData  Withdraw RateData  Path Chg RateData
Table Updates1236.000   New Entries208.000   Removed Entries157.000   Updated Entries871.000
    Address Span1945985.000       Address Span242176.000       Address Span1161984.000       Address Span541825.000
    Average address span per update1574.000       Avg Span1164.000       Avg Span7401.000       Avg Span622.000
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /1 update rate0.000         Prefix /1 announcements0.000         Prefix /1 withdrawals0.000         Prefix /1 path updates0.000
      Prefix /2 update rate0.000         Prefix /2 announcements0.000         Prefix /2 withdrawals0.000         Prefix /2 path updates0.000
      Prefix /3 update rate0.000         Prefix /3 announcements0.000         Prefix /3 withdrawals0.000         Prefix /3 path updates0.000
      Prefix /4 update rate0.000         Prefix /4 announcements0.000         Prefix /4 withdrawals0.000         Prefix /4 path updates0.000
      Prefix /5 update rate0.000         Prefix /5 announcements0.000         Prefix /5 withdrawals0.000         Prefix /5 path updates0.000
      Prefix /6 update rate0.000         Prefix /6 announcements0.000         Prefix /6 withdrawals0.000         Prefix /6 path updates0.000
      Prefix /7 update rate0.000         Prefix /7 announcements0.000         Prefix /7 withdrawals0.000         Prefix /7 path updates0.000
      Prefix /8 update rate0.000         Prefix /8 announcements0.000         Prefix /8 withdrawals0.000         Prefix /8 path updates0.000
      Prefix /9 update rate0.000         Prefix /9 announcements0.000         Prefix /9 withdrawals0.000         Prefix /9 path updates0.000
      Prefix /10 update rate0.000         Prefix /10 announcements0.000         Prefix /10 withdrawals0.000         Prefix /10 path updates0.000
      Prefix /11 update rate0.000         Prefix /11 announcements0.000         Prefix /11 withdrawals0.000         Prefix /11 path updates0.000
      Prefix /12 update rate0.000         Prefix /12 announcements0.000         Prefix /12 withdrawals0.000         Prefix /12 path updates0.000
      Prefix /13 update rate0.000         Prefix /13 announcements0.000         Prefix /13 withdrawals0.000         Prefix /13 path updates0.000
      Prefix /14 update rate1.000         Prefix /14 announcements0.000         Prefix /14 withdrawals1.000         Prefix /14 path updates0.000
      Prefix /15 update rate1.000         Prefix /15 announcements0.000         Prefix /15 withdrawals1.000         Prefix /15 path updates0.000
      Prefix /16 update rate12.000         Prefix /16 announcements2.000         Prefix /16 withdrawals8.000         Prefix /16 path updates2.000
      Prefix /17 update rate5.000         Prefix /17 announcements0.000         Prefix /17 withdrawals4.000         Prefix /17 path updates1.000
      Prefix /18 update rate3.000         Prefix /18 announcements0.000         Prefix /18 withdrawals1.000         Prefix /18 path updates2.000
      Prefix /19 update rate8.000         Prefix /19 announcements4.000         Prefix /19 withdrawals2.000         Prefix /19 path updates2.000
      Prefix /20 update rate22.000         Prefix /20 announcements3.000         Prefix /20 withdrawals8.000         Prefix /20 path updates11.000
      Prefix /21 update rate27.000         Prefix /21 announcements3.000         Prefix /21 withdrawals5.000         Prefix /21 path updates19.000
      Prefix /22 update rate72.000         Prefix /22 announcements10.000         Prefix /22 withdrawals2.000         Prefix /22 path updates60.000
      Prefix /23 update rate97.000         Prefix /23 announcements8.000         Prefix /23 withdrawals14.000         Prefix /23 path updates75.000
      Prefix /24 update rate724.000         Prefix /24 announcements178.000         Prefix /24 withdrawals111.000         Prefix /24 path updates435.000
      Prefix /25 update rate263.000         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates263.000
      Prefix /26 update rate0.000         Prefix /26 announcements0.000         Prefix /26 withdrawals0.000         Prefix /26 path updates0.000
      Prefix /27 update rate0.000         Prefix /27 announcements0.000         Prefix /27 withdrawals0.000         Prefix /27 path updates0.000
      Prefix /28 update rate0.000         Prefix /28 announcements0.000         Prefix /28 withdrawals0.000         Prefix /28 path updates0.000
      Prefix /29 update rate0.000         Prefix /29 announcements0.000         Prefix /29 withdrawals0.000         Prefix /29 path updates0.000
      Prefix /30 update rate0.000         Prefix /30 announcements0.000         Prefix /30 withdrawals0.000         Prefix /30 path updates0.000
      Prefix /31 update rate0.000         Prefix /31 announcements0.000         Prefix /31 withdrawals0.000         Prefix /31 path updates0.000
      Prefix /32 update rate1.000         Prefix /32 announcements0.000         Prefix /32 withdrawals0.000         Prefix /32 path updates1.000

Path Updates - Breakdown by Update Type

Examines those updates that involved a change of AS Path and breaks this down into five categories:

TotalData  OriginData  Origin Next HopData  TransitData  First HopData  PrependData
Total Path Changes468   Origin Paths75   NextHop Paths131   Transit Paths164   Paths82   Paths16
 Report
      /16 Tot2         /16 Org0         /16 Nxt1         /16 Trn0         /16 Fst1         /16 Prp0
      /17 Tot1         /17 Org0         /17 Nxt0         /17 Trn0         /17 Fst1         /17 Prp0
      /18 Tot2         /18 Org0         /18 Nxt0         /18 Trn1         /18 Fst1         /18 Prp0
      /19 Tot2         /19 Org0         /19 Nxt1         /19 Trn1         /19 Fst0         /19 Prp0
      /20 Tot11         /20 Org0         /20 Nxt4         /20 Trn1         /20 Fst6         /20 Prp0
      /21 Tot19         /21 Org0         /21 Nxt5         /21 Trn2         /21 Fst11         /21 Prp1
      /22 Tot60         /22 Org1         /22 Nxt24         /22 Trn14         /22 Fst17         /22 Prp4
      /23 Tot75         /23 Org6         /23 Nxt28         /23 Trn11         /23 Fst23         /23 Prp7
      /24 Tot435         /24 Org23         /24 Nxt145         /24 Trn95         /24 Fst155         /24 Prp17
      /25 Tot263         /25 Org60         /25 Nxt19         /25 Trn0         /25 Fst184         /25 Prp0
      /26 Tot0         /26 Org0         /26 Nxt0         /26 Trn0         /26 Fst0         /26 Prp0
      /27 Tot0         /27 Org0         /27 Nxt0         /27 Trn0         /27 Fst0         /27 Prp0
      /28 Tot0         /28 Org0         /28 Nxt0         /28 Trn0         /28 Fst0         /28 Prp0
      /29 Tot0         /29 Org0         /29 Nxt0         /29 Trn0         /29 Fst0         /29 Prp0
      /30 Tot0         /30 Org0         /30 Nxt0         /30 Trn0         /30 Fst0         /30 Prp0
      /31 Tot0         /31 Org0         /31 Nxt0         /31 Trn0         /31 Fst0         /31 Prp0
      /32 Tot1         /32 Org0         /32 Nxt1         /32 Trn0         /32 Fst0         /32 Prp0

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 /41       % AS's announcing span of /40.0000
    AS's announcing span of /56       % AS's announcing span of /50.0001
    AS's announcing span of /69       % AS's announcing span of /60.0001
    AS's announcing span of /724       % 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 /975       % AS's announcing span of /90.0010
    AS's announcing span of /1099       % AS's announcing span of /100.0013
    AS's announcing span of /11168       % AS's announcing span of /110.0022
    AS's announcing span of /12242       % AS's announcing span of /120.0032
    AS's announcing span of /13400       % AS's announcing span of /130.0054
    AS's announcing span of /14834       % AS's announcing span of /140.0112
    AS's announcing span of /151681       % AS's announcing span of /150.0225
    AS's announcing span of /161767       % AS's announcing span of /160.0237
    AS's announcing span of /172429       % AS's announcing span of /170.0325
    AS's announcing span of /183762       % AS's announcing span of /180.0504
    AS's announcing span of /195066       % AS's announcing span of /190.0678
    AS's announcing span of /207269       % AS's announcing span of /200.0973
    AS's announcing span of /2110385       % AS's announcing span of /210.1390
    AS's announcing span of /2213055       % AS's announcing span of /220.1748
    AS's announcing span of /239167       % AS's announcing span of /230.1227
    AS's announcing span of /2418202       % AS's announcing span of /240.2436
    AS's announcing span of /2519       % AS's announcing span of /250.0003
    AS's announcing span of /260       % AS's announcing span of /260.0000
    AS's announcing span of /270       % AS's announcing span of /270.0000
    AS's announcing span of /280       % 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.

AS Connectivity ReportData
AS Adjacency Count122109
Average AS Connectivity Degree (244218/75250)3.2454
Average AS Connectivity IN:OUT Degree0.1455
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 Path520253Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path503766Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin360509Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation360525Report (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 AS65000

Report last updated at Sun Dec 10 13:01:08 2023 (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