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   AS65000 BGP Routing Table Analysis Report












   
  BGP data obtained from AS65000
Report last updated at Mon Jun 21 01:10:11 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)886131   Change in FIB Size-48   Change (%)-0.005
    All BGP entries (RIB)2611037
    RIB/FIB ratio (2611037/886131)2.9466
      Valid entries2611037
      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)3042132736
    Total address space advertised (prefix length)0.49756404
    Percentage of IPv4 space advertised (3042132736/4294967295)70.830172
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3433
    Average address span (as prefix size)20.2547
Average prefix length22.7941

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 aggregates475794       Specifics as % of FIB entries (475794/886131)53.6934
    Specifics as % of address span (1117468304/3042132736)36.7331    
    Specifics where AS prepended Path matches aggregate219795         AS-P_Path-Match % (219795/475794)46.20
    AS Path matches aggregate231447         AS-Path-Match % (231447/475794)48.6444
    AS Origin matches aggregate362741         AS-Origin-Match % (362741/475794)76.2391
    Root Prefixes410337
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0356205
      Root Prefixes with depth 143278
      Root Prefixes with depth 28763
      Root Prefixes with depth 31534
      Root Prefixes with depth 4410
      Root Prefixes with depth 597
      Root Prefixes with depth 641
      Root Prefixes with depth 79

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 ASes71711       ASes visible in only one AS path43835
    Origin only ASes61325         Origin ASs announced via a single AS path43422
    Transit only ASes339       Originating AS ATOM count71372
    Mixed ASes10047         Originating AS ATOM compression0.0805
    Multi-Origin Prefixes2211    
    ASes originating a single prefix25184    
    Average entries per origin AS12.4157         Maximum entries for an origin AS (AS55410)847
    Average address range span for an origin AS42623.6162         Maximum address range for an origin AS (AS8003)178481664

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 Paths229418       Unique AS prepended Paths245216
AS Paths used in FIB114679       AS Paths using prepending59917
    AS paths associated with a single FIB entry53263       AS Paths using private ASs57
    Average AS path length5.3247       Number of Prefixes with Selected AS Prepending Paths104234
      Maximum AS Path length13       Number of Prefixes with AS Prepending Paths104234
    Average address weighted AS path length6.6715         Maximum prepended AS Path length56
    Average entries per AS Path3.8625       Average entries per FIB AS Path7.7271
    AS Paths per origin AS3.2144       FIB AS Paths per origin AS1.6068
      AS PATH ATOM compression0.1294    

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 /11102       % Prefix /110.01
    Prefix count /12308       % Prefix /120.03
    Prefix count /13587       % Prefix /130.07
    Prefix count /141194       % Prefix /140.13
    Prefix count /152045       % Prefix /150.23
    Prefix count /1613514       % Prefix /161.53
    Prefix count /178433       % Prefix /170.95
    Prefix count /1814158       % Prefix /181.60
    Prefix count /1925805       % Prefix /192.91
    Prefix count /2043493       % Prefix /204.91
    Prefix count /2152327       % Prefix /215.91
    Prefix count /22109227       % Prefix /2212.33
    Prefix count /2396655       % Prefix /2310.91
    Prefix count /24516811       % Prefix /2458.32
    Prefix count /251401       % Prefix /250.16
    Prefix count /260       % Prefix /260.00
    Prefix count /270       % Prefix /270.00
    Prefix count /281       % 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

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 /1196       % Prefix /110.02
    Prefix count /12270       % Prefix /120.07
    Prefix count /13486       % Prefix /130.12
    Prefix count /141014       % Prefix /140.25
    Prefix count /151609       % Prefix /150.39
    Prefix count /1610197       % Prefix /162.49
    Prefix count /174471       % Prefix /171.09
    Prefix count /186727       % Prefix /181.64
    Prefix count /1915048       % Prefix /193.67
    Prefix count /2019336       % Prefix /204.71
    Prefix count /2121815       % Prefix /215.32
    Prefix count /2257670       % Prefix /2214.05
    Prefix count /2337390       % Prefix /239.11
    Prefix count /24234128       % Prefix /2457.06
    Prefix count /2514       % 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 176288       % Addresses at AS distance 10.0
    Addresses at AS distance 2217226128       % Addresses at AS distance 25.2
    Addresses at AS distance 31241182080       % Addresses at AS distance 329.8
    Addresses at AS distance 41780795392       % Addresses at AS distance 442.8
    Addresses at AS distance 5779424640       % Addresses at AS distance 518.7
    Addresses at AS distance 690345856       % Addresses at AS distance 62.2
    Addresses at AS distance 719020672       % Addresses at AS distance 70.5
    Addresses at AS distance 810225920       % Addresses at AS distance 80.2
    Addresses at AS distance 913715968       % Addresses at AS distance 90.3
    Addresses at AS distance 106409216       % Addresses at AS distance 100.2
    Addresses at AS distance 111169920       % Addresses at AS distance 110.0
    Addresses at AS distance 128704       % 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 hops76544       % Addresses reachable within 1 AS hops0
    Addresses reachable within 2 AS hops217302672       % Addresses reachable within 2 AS hops5
    Addresses reachable within 3 AS hops1458484752       % Addresses reachable within 3 AS hops35
    Addresses reachable within 4 AS hops3239280144       % Addresses reachable within 4 AS hops77
    Addresses reachable within 5 AS hops4018704784       % Addresses reachable within 5 AS hops96
    Addresses reachable within 6 AS hops4109050640       % Addresses reachable within 6 AS hops98
    Addresses reachable within 7 AS hops4128071312       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4138297232       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4152013200       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4158422416       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4159592336       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4159601040       % 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 hops3       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops164       % ASes reachable at 2 AS hops0
    ASes reachable at 3 AS hops5663       % ASes reachable at 3 AS hops7
    ASes reachable at 4 AS hops29151       % ASes reachable at 4 AS hops40
    ASes reachable at 5 AS hops29285       % ASes reachable at 5 AS hops40
    ASes reachable at 6 AS hops5935       % ASes reachable at 6 AS hops8
    ASes reachable at 7 AS hops1012       % ASes reachable at 7 AS hops1
    ASes reachable at 8 AS hops241       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops138       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops92       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops25       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops1       % 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 hops4       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops168       Cumulative % ASes by AS hops 20.2
    ASes reachable by 3 AS hops5831       Cumulative % ASes by AS hops 38.1
    ASes reachable by 4 AS hops34982       Cumulative % ASes by AS hops 448.8
    ASes reachable by 5 AS hops64267       Cumulative % ASes by AS hops 589.6
    ASes reachable by 6 AS hops70202       Cumulative % ASes by AS hops 697.9
    ASes reachable by 7 AS hops71214       Cumulative % ASes by AS hops 799.3
    ASes reachable by 8 AS hops71455       Cumulative % ASes by AS hops 899.6
    ASes reachable by 9 AS hops71593       Cumulative % ASes by AS hops 999.8
    ASes reachable by 10 AS hops71685       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops71710       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops71711       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 Updates1488   New Entries66   Removed Entries117   Updated Entries1305
     Report     Report     Report 
    Address Span2201600       Address Span87296       Address Span175872       Address Span1938432
    Average address span per update1479       Avg Span1322       Avg Span1503       Avg Span1485
    Average prefix size updated23.64       Average prefix size23.35       Average prefix size22.72       Average prefix size23.74
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /14 total2         Prefix /14 announcements0         Prefix /14 withdrawals0         Prefix /14 path updates2
      Prefix /15 total1         Prefix /15 announcements0         Prefix /15 withdrawals0         Prefix /15 path updates1
      Prefix /16 total3         Prefix /16 announcements0         Prefix /16 withdrawals1         Prefix /16 path updates2
      Prefix /17 total4         Prefix /17 announcements1         Prefix /17 withdrawals0         Prefix /17 path updates3
      Prefix /18 total7         Prefix /18 announcements1         Prefix /18 withdrawals0         Prefix /18 path updates6
      Prefix /19 total57         Prefix /19 announcements1         Prefix /19 withdrawals2         Prefix /19 path updates54
      Prefix /20 total42         Prefix /20 announcements2         Prefix /20 withdrawals6         Prefix /20 path updates34
      Prefix /21 total24         Prefix /21 announcements0         Prefix /21 withdrawals1         Prefix /21 path updates23
      Prefix /22 total148         Prefix /22 announcements7         Prefix /22 withdrawals51         Prefix /22 path updates90
      Prefix /23 total70         Prefix /23 announcements3         Prefix /23 withdrawals3         Prefix /23 path updates64
      Prefix /24 total654         Prefix /24 announcements51         Prefix /24 withdrawals53         Prefix /24 path updates550
      Prefix /25 total476         Prefix /25 announcements0         Prefix /25 withdrawals0         Prefix /25 path updates476
      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 total1.00         Prefix /14 announcements0.00         Prefix /14 withdrawals0.00         Prefix /14 path updates1.14
      Prefix /15 total0.29         Prefix /15 announcements0.00         Prefix /15 withdrawals0.00         Prefix /15 path updates0.33
      Prefix /16 total0.13         Prefix /16 announcements0.00         Prefix /16 withdrawals0.56         Prefix /16 path updates0.10
      Prefix /17 total0.28         Prefix /17 announcements1.59         Prefix /17 withdrawals0.00         Prefix /17 path updates0.24
      Prefix /18 total0.29         Prefix /18 announcements0.95         Prefix /18 withdrawals0.00         Prefix /18 path updates0.29
      Prefix /19 total1.32         Prefix /19 announcements0.52         Prefix /19 withdrawals0.59         Prefix /19 path updates1.42
      Prefix /20 total0.58         Prefix /20 announcements0.62         Prefix /20 withdrawals1.04         Prefix /20 path updates0.53
      Prefix /21 total0.27         Prefix /21 announcements0.00         Prefix /21 withdrawals0.14         Prefix /21 path updates0.30
      Prefix /22 total0.81         Prefix /22 announcements0.86         Prefix /22 withdrawals3.54         Prefix /22 path updates0.56
      Prefix /23 total0.43         Prefix /23 announcements0.42         Prefix /23 withdrawals0.24         Prefix /23 path updates0.45
      Prefix /24 total0.75         Prefix /24 announcements1.32         Prefix /24 withdrawals0.78         Prefix /24 path updates0.72
      Prefix /25 total202.33         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates230.70
      Prefix /26 total0.00         Prefix /26 announcements100.00         Prefix /26 withdrawals100.00         Prefix /26 path updates100.00
      Prefix /27 total0.00         Prefix /27 announcements100.00         Prefix /27 withdrawals100.00         Prefix /27 path updates100.00
      Prefix /28 total0.00         Prefix /28 announcements0.00         Prefix /28 withdrawals0.00         Prefix /28 path updates0.00
      Prefix /29 total0.00         Prefix /29 announcements100.00         Prefix /29 withdrawals100.00         Prefix /29 path updates100.00
      Prefix /30 total0.00         Prefix /30 announcements100.00         Prefix /30 withdrawals100.00         Prefix /30 path updates100.00
      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 Updates1487.587   New Entries65.982   Removed Entries116.968   Updated Entries1304.638
    Address Span2200988.500       Address Span87271.758       Address Span175823.156       Address Span1937893.750
    Average address span per update1478.589       Avg Span1321.633       Avg Span1502.583       Avg Span1484.588
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 rate1.999         Prefix /14 announcements0.000         Prefix /14 withdrawals0.000         Prefix /14 path updates1.999
      Prefix /15 update rate1.000         Prefix /15 announcements0.000         Prefix /15 withdrawals0.000         Prefix /15 path updates1.000
      Prefix /16 update rate2.999         Prefix /16 announcements0.000         Prefix /16 withdrawals1.000         Prefix /16 path updates1.999
      Prefix /17 update rate3.999         Prefix /17 announcements1.000         Prefix /17 withdrawals0.000         Prefix /17 path updates2.999
      Prefix /18 update rate6.998         Prefix /18 announcements1.000         Prefix /18 withdrawals0.000         Prefix /18 path updates5.998
      Prefix /19 update rate56.984         Prefix /19 announcements1.000         Prefix /19 withdrawals1.999         Prefix /19 path updates53.985
      Prefix /20 update rate41.988         Prefix /20 announcements1.999         Prefix /20 withdrawals5.998         Prefix /20 path updates33.991
      Prefix /21 update rate23.993         Prefix /21 announcements0.000         Prefix /21 withdrawals1.000         Prefix /21 path updates22.994
      Prefix /22 update rate147.959         Prefix /22 announcements6.998         Prefix /22 withdrawals50.986         Prefix /22 path updates89.975
      Prefix /23 update rate69.981         Prefix /23 announcements2.999         Prefix /23 withdrawals2.999         Prefix /23 path updates63.982
      Prefix /24 update rate653.818         Prefix /24 announcements50.986         Prefix /24 withdrawals52.985         Prefix /24 path updates549.847
      Prefix /25 update rate475.868         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates475.868
      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 Changes422   Origin Paths62   NextHop Paths129   Transit Paths140   Paths73   Paths18
 Report
      /14 Tot2         /14 Org0         /14 Nxt1         /14 Trn1         /14 Fst0         /14 Prp0
      /15 Tot1         /15 Org0         /15 Nxt1         /15 Trn0         /15 Fst0         /15 Prp0
      /16 Tot2         /16 Org0         /16 Nxt2         /16 Trn0         /16 Fst0         /16 Prp0
      /17 Tot3         /17 Org0         /17 Nxt3         /17 Trn0         /17 Fst0         /17 Prp0
      /18 Tot6         /18 Org0         /18 Nxt3         /18 Trn3         /18 Fst0         /18 Prp0
      /19 Tot54         /19 Org0         /19 Nxt22         /19 Trn3         /19 Fst16         /19 Prp13
      /20 Tot34         /20 Org0         /20 Nxt12         /20 Trn4         /20 Fst14         /20 Prp4
      /21 Tot23         /21 Org0         /21 Nxt9         /21 Trn5         /21 Fst7         /21 Prp2
      /22 Tot90         /22 Org1         /22 Nxt44         /22 Trn13         /22 Fst22         /22 Prp10
      /23 Tot64         /23 Org0         /23 Nxt18         /23 Trn4         /23 Fst40         /23 Prp2
      /24 Tot550         /24 Org2         /24 Nxt320         /24 Trn125         /24 Fst79         /24 Prp24
      /25 Tot476         /25 Org65         /25 Nxt22         /25 Trn0         /25 Fst389         /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 /845       % AS's announcing span of /80.0006
    AS's announcing span of /977       % AS's announcing span of /90.0011
    AS's announcing span of /10104       % AS's announcing span of /100.0015
    AS's announcing span of /11174       % AS's announcing span of /110.0024
    AS's announcing span of /12250       % AS's announcing span of /120.0035
    AS's announcing span of /13429       % AS's announcing span of /130.0060
    AS's announcing span of /14843       % AS's announcing span of /140.0118
    AS's announcing span of /151721       % AS's announcing span of /150.0241
    AS's announcing span of /161865       % AS's announcing span of /160.0262
    AS's announcing span of /172438       % AS's announcing span of /170.0342
    AS's announcing span of /183779       % AS's announcing span of /180.0530
    AS's announcing span of /195084       % AS's announcing span of /190.0713
    AS's announcing span of /207590       % AS's announcing span of /200.1065
    AS's announcing span of /2110342       % AS's announcing span of /210.1451
    AS's announcing span of /2212236       % AS's announcing span of /220.1716
    AS's announcing span of /237713       % AS's announcing span of /230.1082
    AS's announcing span of /2416541       % AS's announcing span of /240.2320
    AS's announcing span of /2516       % 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 /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.

°Ăi °Ăi °Ăi
AS Connectivity ReportData
AS Adjacency Count119818
Average AS Connectivity Degree (239636/71711)3.3417
Average AS Connectivity IN:OUT Degree0.1588
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 Path478797Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path466268Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin330231Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation330245Report (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 Mon Jun 21 01:10:11 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