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   AS65000 BGP Routing Table Analysis Report












   
  BGP data obtained from AS65000
Report last updated at Tue Nov 30 12:10:13 2021 (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)902557   Change in FIB Size1   Change (%)0.000
    All BGP entries (RIB)2673642
    RIB/FIB ratio (2673642/902557)2.9623
      Valid entries2673642
      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)3073822592
    Total address space advertised (prefix length)0.48261324
    Percentage of IPv4 space advertised (3073822592/4294967295)71.568009
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3406
    Average address span (as prefix size)20.2666
Average prefix length22.8068

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 aggregates481030       Specifics as % of FIB entries (481030/902557)53.2964
    Specifics as % of address span (1109455472/3073822592)36.0937    
    Specifics where AS prepended Path matches aggregate220600         AS-P_Path-Match % (220600/481030)45.86
    AS Path matches aggregate232226         AS-Path-Match % (232226/481030)48.2768
    AS Origin matches aggregate368488         AS-Origin-Match % (368488/481030)76.6040
    Root Prefixes421527
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0366550
      Root Prefixes with depth 144090
      Root Prefixes with depth 28807
      Root Prefixes with depth 31547
      Root Prefixes with depth 4413
      Root Prefixes with depth 587
      Root Prefixes with depth 625
      Root Prefixes with depth 78

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 ASes72638       ASes visible in only one AS path44916
    Origin only ASes62042         Origin ASs announced via a single AS path44444
    Transit only ASes385       Originating AS ATOM count72253
    Mixed ASes10211         Originating AS ATOM compression0.0801
    Multi-Origin Prefixes1957    
    ASes originating a single prefix25424    
    Average entries per origin AS12.4916         Maximum entries for an origin AS (AS8551)3453
    Average address range span for an origin AS42542.4909         Maximum address range for an origin AS (AS749)211581184

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 Paths230769       Unique AS prepended Paths246979
AS Paths used in FIB113830       AS Paths using prepending61494
    AS paths associated with a single FIB entry52335       AS Paths using private ASs60
    Average AS path length5.2875       Number of Prefixes with Selected AS Prepending Paths104549
      Maximum AS Path length17       Number of Prefixes with AS Prepending Paths104549
    Average address weighted AS path length6.5974         Maximum prepended AS Path length55
    Average entries per AS Path3.9111       Average entries per FIB AS Path7.9290
    AS Paths per origin AS3.1939       FIB AS Paths per origin AS1.5754
      AS PATH ATOM compression0.1261    

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 /913       % Prefix /90.00
    Prefix count /1041       % Prefix /100.00
    Prefix count /11101       % Prefix /110.01
    Prefix count /12306       % Prefix /120.03
    Prefix count /13597       % Prefix /130.07
    Prefix count /141216       % Prefix /140.13
    Prefix count /152098       % Prefix /150.23
    Prefix count /1613605       % Prefix /161.51
    Prefix count /178357       % Prefix /170.93
    Prefix count /1814104       % Prefix /181.56
    Prefix count /1925611       % Prefix /192.84
    Prefix count /2044140       % Prefix /204.89
    Prefix count /2152878       % Prefix /215.86
    Prefix count /22109798       % Prefix /2212.17
    Prefix count /2399338       % Prefix /2311.01
    Prefix count /24529526       % Prefix /2458.67
    Prefix count /25798       % Prefix /250.09
    Prefix count /261       % Prefix /260.00
    Prefix count /273       % Prefix /270.00
    Prefix count /281       % Prefix /280.00
    Prefix count /297       % Prefix /290.00
    Prefix count /302       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /320       % 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 /1041       % Prefix /100.01
    Prefix count /1195       % Prefix /110.02
    Prefix count /12271       % Prefix /120.06
    Prefix count /13496       % Prefix /130.12
    Prefix count /141034       % Prefix /140.25
    Prefix count /151645       % Prefix /150.39
    Prefix count /1610340       % Prefix /162.45
    Prefix count /174454       % Prefix /171.06
    Prefix count /186867       % Prefix /181.63
    Prefix count /1915176       % Prefix /193.60
    Prefix count /2019530       % Prefix /204.63
    Prefix count /2122358       % Prefix /215.30
    Prefix count /2258430       % Prefix /2213.86
    Prefix count /2338674       % Prefix /239.17
    Prefix count /24242076       % Prefix /2457.43
    Prefix count /2515       % 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 175264       % Addresses at AS distance 10.0
    Addresses at AS distance 2217875344       % Addresses at AS distance 25.2
    Addresses at AS distance 31327859672       % Addresses at AS distance 331.7
    Addresses at AS distance 41755723776       % Addresses at AS distance 442.0
    Addresses at AS distance 5747600392       % Addresses at AS distance 517.9
    Addresses at AS distance 680974976       % Addresses at AS distance 61.9
    Addresses at AS distance 721410432       % Addresses at AS distance 70.5
    Addresses at AS distance 812647552       % Addresses at AS distance 80.3
    Addresses at AS distance 912433408       % Addresses at AS distance 90.3
    Addresses at AS distance 106648320       % Addresses at AS distance 100.2
    Addresses at AS distance 1125856       % Addresses at AS distance 110.0
    Addresses at AS distance 122816       % 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
    Addresses at AS distance 150       % Addresses at AS distance 150.0
    Addresses at AS distance 160       % Addresses at AS distance 160.0
     
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 hops75520       % Addresses reachable within 1 AS hops0
    Addresses reachable within 2 AS hops217950864       % Addresses reachable within 2 AS hops5
    Addresses reachable within 3 AS hops1545810536       % Addresses reachable within 3 AS hops36
    Addresses reachable within 4 AS hops3301534312       % Addresses reachable within 4 AS hops78
    Addresses reachable within 5 AS hops4049134704       % Addresses reachable within 5 AS hops96
    Addresses reachable within 6 AS hops4130109680       % Addresses reachable within 6 AS hops98
    Addresses reachable within 7 AS hops4151520112       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4164167664       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4176601072       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4183249392       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4183275248       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4183278064       % Addresses reachable within 12 AS hops100
    Addresses reachable within 13 AS hops4183278064       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops4183278064       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops4183278064       % Addresses reachable within 15 AS hops100
    Addresses reachable within 16 AS hops4183278064       % Addresses reachable within 16 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 hops3       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops226       % ASes reachable at 2 AS hops0
    ASes reachable at 3 AS hops6167       % ASes reachable at 3 AS hops8
    ASes reachable at 4 AS hops29774       % ASes reachable at 4 AS hops40
    ASes reachable at 5 AS hops28961       % ASes reachable at 5 AS hops39
    ASes reachable at 6 AS hops5944       % ASes reachable at 6 AS hops8
    ASes reachable at 7 AS hops1049       % ASes reachable at 7 AS hops1
    ASes reachable at 8 AS hops280       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops136       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops89       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops8       % 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
    ASes reachable at 15 AS hops0       % ASes reachable at 15 AS hops0
    ASes reachable at 16 AS hops0       % ASes reachable at 16 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 hops4       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops230       Cumulative % ASes by AS hops 20.3
    ASes reachable by 3 AS hops6397       Cumulative % ASes by AS hops 38.8
    ASes reachable by 4 AS hops36171       Cumulative % ASes by AS hops 449.8
    ASes reachable by 5 AS hops65132       Cumulative % ASes by AS hops 589.7
    ASes reachable by 6 AS hops71076       Cumulative % ASes by AS hops 697.8
    ASes reachable by 7 AS hops72125       Cumulative % ASes by AS hops 799.3
    ASes reachable by 8 AS hops72405       Cumulative % ASes by AS hops 899.7
    ASes reachable by 9 AS hops72541       Cumulative % ASes by AS hops 999.9
    ASes reachable by 10 AS hops72630       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops72638       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops72638       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops72638       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops72638       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops72638       Cumulative % ASes by AS hops 15100.0
    ASes reachable by 16 AS hops72638       Cumulative % ASes by AS hops 16100.0

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 Updates1896   New Entries163   Removed Entries177   Updated Entries1556
     Report     Report     Report 
    Address Span1810944       Address Span113920       Address Span111872       Address Span1585152
    Average address span per update955       Avg Span698       Avg Span632       Avg Span1018
    Average prefix size updated23.49       Average prefix size23.39       Average prefix size23.53       Average prefix size23.49
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /16 total1         Prefix /16 announcements0         Prefix /16 withdrawals0         Prefix /16 path updates1
      Prefix /17 total8         Prefix /17 announcements0         Prefix /17 withdrawals0         Prefix /17 path updates8
      Prefix /18 total13         Prefix /18 announcements0         Prefix /18 withdrawals0         Prefix /18 path updates13
      Prefix /19 total34         Prefix /19 announcements1         Prefix /19 withdrawals4         Prefix /19 path updates29
      Prefix /20 total84         Prefix /20 announcements11         Prefix /20 withdrawals4         Prefix /20 path updates69
      Prefix /21 total39         Prefix /21 announcements7         Prefix /21 withdrawals4         Prefix /21 path updates28
      Prefix /22 total160         Prefix /22 announcements7         Prefix /22 withdrawals12         Prefix /22 path updates141
      Prefix /23 total152         Prefix /23 announcements16         Prefix /23 withdrawals12         Prefix /23 path updates124
      Prefix /24 total1143         Prefix /24 announcements121         Prefix /24 withdrawals141         Prefix /24 path updates881
      Prefix /25 total262         Prefix /25 announcements0         Prefix /25 withdrawals0         Prefix /25 path updates262
      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 total0         Prefix /32 announcements0         Prefix /32 withdrawals0         Prefix /32 path updates0
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 total0.00         Prefix /14 announcements0.00         Prefix /14 withdrawals0.00         Prefix /14 path updates0.00
      Prefix /15 total0.00         Prefix /15 announcements0.00         Prefix /15 withdrawals0.00         Prefix /15 path updates0.00
      Prefix /16 total0.03         Prefix /16 announcements0.00         Prefix /16 withdrawals0.00         Prefix /16 path updates0.04
      Prefix /17 total0.46         Prefix /17 announcements0.00         Prefix /17 withdrawals0.00         Prefix /17 path updates0.56
      Prefix /18 total0.44         Prefix /18 announcements0.00         Prefix /18 withdrawals0.00         Prefix /18 path updates0.53
      Prefix /19 total0.63         Prefix /19 announcements0.22         Prefix /19 withdrawals0.80         Prefix /19 path updates0.66
      Prefix /20 total0.91         Prefix /20 announcements1.38         Prefix /20 withdrawals0.46         Prefix /20 path updates0.91
      Prefix /21 total0.35         Prefix /21 announcements0.73         Prefix /21 withdrawals0.39         Prefix /21 path updates0.31
      Prefix /22 total0.69         Prefix /22 announcements0.35         Prefix /22 withdrawals0.56         Prefix /22 path updates0.74
      Prefix /23 total0.73         Prefix /23 announcements0.89         Prefix /23 withdrawals0.62         Prefix /23 path updates0.72
      Prefix /24 total1.03         Prefix /24 announcements1.27         Prefix /24 withdrawals1.36         Prefix /24 path updates0.97
      Prefix /25 total156.29         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates190.44
      Prefix /26 total0.00         Prefix /26 announcements0.00         Prefix /26 withdrawals0.00         Prefix /26 path updates0.00
      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 total0.00         Prefix /32 announcements100.00         Prefix /32 withdrawals100.00         Prefix /32 path updates100.00

FIB Update Rate Reports
Updates per hour
(Measurement Period 1 hrs 0 mins)
Data  Announce RateData  Withdraw RateData  Path Chg RateData
Table Updates1896.000   New Entries163.000   Removed Entries177.000   Updated Entries1556.000
    Address Span1810944.000       Address Span113920.000       Address Span111872.000       Address Span1585152.000
    Average address span per update955.000       Avg Span698.000       Avg Span632.000       Avg Span1018.000
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 rate0.000         Prefix /14 announcements0.000         Prefix /14 withdrawals0.000         Prefix /14 path updates0.000
      Prefix /15 update rate0.000         Prefix /15 announcements0.000         Prefix /15 withdrawals0.000         Prefix /15 path updates0.000
      Prefix /16 update rate1.000         Prefix /16 announcements0.000         Prefix /16 withdrawals0.000         Prefix /16 path updates1.000
      Prefix /17 update rate8.000         Prefix /17 announcements0.000         Prefix /17 withdrawals0.000         Prefix /17 path updates8.000
      Prefix /18 update rate13.000         Prefix /18 announcements0.000         Prefix /18 withdrawals0.000         Prefix /18 path updates13.000
      Prefix /19 update rate34.000         Prefix /19 announcements1.000         Prefix /19 withdrawals4.000         Prefix /19 path updates29.000
      Prefix /20 update rate84.000         Prefix /20 announcements11.000         Prefix /20 withdrawals4.000         Prefix /20 path updates69.000
      Prefix /21 update rate39.000         Prefix /21 announcements7.000         Prefix /21 withdrawals4.000         Prefix /21 path updates28.000
      Prefix /22 update rate160.000         Prefix /22 announcements7.000         Prefix /22 withdrawals12.000         Prefix /22 path updates141.000
      Prefix /23 update rate152.000         Prefix /23 announcements16.000         Prefix /23 withdrawals12.000         Prefix /23 path updates124.000
      Prefix /24 update rate1143.000         Prefix /24 announcements121.000         Prefix /24 withdrawals141.000         Prefix /24 path updates881.000
      Prefix /25 update rate262.000         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates262.000
      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 rate0.000         Prefix /32 announcements0.000         Prefix /32 withdrawals0.000         Prefix /32 path updates0.000

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 Changes673   Origin Paths70   NextHop Paths210   Transit Paths207   Paths162   Paths24
 Report
      /16 Tot1         /16 Org0         /16 Nxt0         /16 Trn0         /16 Fst1         /16 Prp0
      /17 Tot8         /17 Org0         /17 Nxt2         /17 Trn2         /17 Fst4         /17 Prp0
      /18 Tot13         /18 Org0         /18 Nxt6         /18 Trn2         /18 Fst4         /18 Prp1
      /19 Tot29         /19 Org0         /19 Nxt19         /19 Trn0         /19 Fst7         /19 Prp3
      /20 Tot69         /20 Org0         /20 Nxt32         /20 Trn13         /20 Fst20         /20 Prp4
      /21 Tot28         /21 Org0         /21 Nxt13         /21 Trn3         /21 Fst12         /21 Prp0
      /22 Tot141         /22 Org0         /22 Nxt48         /22 Trn39         /22 Fst39         /22 Prp15
      /23 Tot124         /23 Org2         /23 Nxt44         /23 Trn32         /23 Fst42         /23 Prp4
      /24 Tot881         /24 Org26         /24 Nxt350         /24 Trn237         /24 Fst231         /24 Prp37
      /25 Tot262         /25 Org64         /25 Nxt22         /25 Trn0         /25 Fst176         /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 Tot0         /32 Org0         /32 Nxt0         /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 /611       % AS's announcing span of /60.0002
    AS's announcing span of /723       % 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 /976       % AS's announcing span of /90.0011
    AS's announcing span of /10101       % AS's announcing span of /100.0014
    AS's announcing span of /11181       % AS's announcing span of /110.0025
    AS's announcing span of /12236       % AS's announcing span of /120.0033
    AS's announcing span of /13430       % AS's announcing span of /130.0060
    AS's announcing span of /14833       % AS's announcing span of /140.0115
    AS's announcing span of /151732       % AS's announcing span of /150.0240
    AS's announcing span of /161842       % AS's announcing span of /160.0255
    AS's announcing span of /172460       % AS's announcing span of /170.0341
    AS's announcing span of /183819       % AS's announcing span of /180.0529
    AS's announcing span of /195047       % AS's announcing span of /190.0699
    AS's announcing span of /207585       % AS's announcing span of /200.1051
    AS's announcing span of /2110414       % AS's announcing span of /210.1443
    AS's announcing span of /2212308       % AS's announcing span of /220.1706
    AS's announcing span of /238063       % AS's announcing span of /230.1117
    AS's announcing span of /2416933       % AS's announcing span of /240.2346
    AS's announcing span of /2517       % AS's announcing span of /250.0002
    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 /291       % 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 Count121571
Average AS Connectivity Degree (243142/72638)3.3473
Average AS Connectivity IN:OUT Degree0.1609
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 Path486428Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path474027Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin337505Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation337523Report (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 Tue Nov 30 12:10:13 2021 (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