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   AS65000 BGP Routing Table Analysis Report












   
  BGP data obtained from AS65000
Report last updated at Wed Jul 6 12:10:14 2022 (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)924657   Change in FIB Size6   Change (%)0.001
    All BGP entries (RIB)2747918
    RIB/FIB ratio (2747918/924657)2.9718
      Valid entries2747918
      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)3068516864
    Total address space advertised (prefix length)0.48510563
    Percentage of IPv4 space advertised (3068516864/4294967295)71.444476
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3319
    Average address span (as prefix size)20.3039
Average prefix length22.8272

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 aggregates489428       Specifics as % of FIB entries (489428/924657)52.9308
    Specifics as % of address span (1126582059/3068516864)36.7142    
    Specifics where AS prepended Path matches aggregate211981         AS-P_Path-Match % (211981/489428)43.31
    AS Path matches aggregate223335         AS-Path-Match % (223335/489428)45.6318
    AS Origin matches aggregate379712         AS-Origin-Match % (379712/489428)77.5828
    Root Prefixes435229
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0379748
      Root Prefixes with depth 144628
      Root Prefixes with depth 28830
      Root Prefixes with depth 31489
      Root Prefixes with depth 4410
      Root Prefixes with depth 588
      Root Prefixes with depth 627
      Root Prefixes with depth 78
      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 ASes73613       ASes visible in only one AS path43942
    Origin only ASes62853         Origin ASs announced via a single AS path43478
    Transit only ASes414       Originating AS ATOM count73199
    Mixed ASes10346         Originating AS ATOM compression0.0792
    Multi-Origin Prefixes2011    
    ASes originating a single prefix25689    
    Average entries per origin AS12.6321         Maximum entries for an origin AS (AS8551)4011
    Average address range span for an origin AS41920.2020         Maximum address range for an origin AS (AS749)211397632

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 Paths238292       Unique AS prepended Paths255656
AS Paths used in FIB121940       AS Paths using prepending67158
    AS paths associated with a single FIB entry57416       AS Paths using private ASs53
    Average AS path length5.2943       Number of Prefixes with Selected AS Prepending Paths122783
      Maximum AS Path length14       Number of Prefixes with AS Prepending Paths122783
    Average address weighted AS path length6.7152         Maximum prepended AS Path length63
    Average entries per AS Path3.8804       Average entries per FIB AS Path7.5829
    AS Paths per origin AS3.2554       FIB AS Paths per origin AS1.6659
      AS PATH ATOM compression0.1319    

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 /13593       % Prefix /130.06
    Prefix count /141207       % Prefix /140.13
    Prefix count /152113       % Prefix /150.23
    Prefix count /1613574       % Prefix /161.47
    Prefix count /178392       % Prefix /170.91
    Prefix count /1814158       % Prefix /181.53
    Prefix count /1925439       % Prefix /192.75
    Prefix count /2045229       % Prefix /204.89
    Prefix count /2153322       % Prefix /215.77
    Prefix count /22110354       % Prefix /2211.93
    Prefix count /23101106       % Prefix /2310.93
    Prefix count /24547815       % Prefix /2459.25
    Prefix count /25793       % Prefix /250.09
    Prefix count /262       % Prefix /260.00
    Prefix count /274       % Prefix /270.00
    Prefix count /281       % Prefix /280.00
    Prefix count /298       % Prefix /290.00
    Prefix count /308       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /3259       % Prefix /320.01

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 /12269       % Prefix /120.06
    Prefix count /13490       % Prefix /130.11
    Prefix count /141023       % Prefix /140.24
    Prefix count /151626       % Prefix /150.37
    Prefix count /1610312       % Prefix /162.37
    Prefix count /174468       % Prefix /171.03
    Prefix count /186881       % Prefix /181.58
    Prefix count /1915058       % Prefix /193.46
    Prefix count /2019474       % Prefix /204.47
    Prefix count /2122898       % Prefix /215.26
    Prefix count /2259006       % Prefix /2213.56
    Prefix count /2340960       % Prefix /239.41
    Prefix count /24252586       % Prefix /2458.04
    Prefix count /2516       % 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 171168       % Addresses at AS distance 10.0
    Addresses at AS distance 2216019482       % Addresses at AS distance 25.1
    Addresses at AS distance 31136857613       % Addresses at AS distance 327.1
    Addresses at AS distance 41920909060       % Addresses at AS distance 445.8
    Addresses at AS distance 5760173312       % Addresses at AS distance 518.1
    Addresses at AS distance 6100796928       % Addresses at AS distance 62.4
    Addresses at AS distance 727652608       % Addresses at AS distance 70.7
    Addresses at AS distance 815166464       % Addresses at AS distance 80.4
    Addresses at AS distance 910829568       % Addresses at AS distance 90.3
    Addresses at AS distance 106587648       % Addresses at AS distance 100.2
    Addresses at AS distance 1134560       % Addresses at AS distance 110.0
    Addresses at AS distance 12256       % Addresses at AS distance 120.0
    Addresses at AS distance 130       % Addresses at AS distance 130.0
     
Cumulative Address by AS distance(data)   Cumulative % Address by AS distance(data)
    Addresses reachable within 0 AS hops256       % Addresses reachable within 0 AS hops0
    Addresses reachable within 1 AS hops71424       % Addresses reachable within 1 AS hops0
    Addresses reachable within 2 AS hops216090906       % Addresses reachable within 2 AS hops5
    Addresses reachable within 3 AS hops1352948519       % Addresses reachable within 3 AS hops32
    Addresses reachable within 4 AS hops3273857579       % Addresses reachable within 4 AS hops78
    Addresses reachable within 5 AS hops4034030891       % Addresses reachable within 5 AS hops96
    Addresses reachable within 6 AS hops4134827819       % Addresses reachable within 6 AS hops98
    Addresses reachable within 7 AS hops4162480427       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4177646891       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4188476459       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4195064107       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4195098667       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4195098923       % Addresses reachable within 12 AS hops100
    Addresses reachable within 13 AS hops4195098923       % Addresses reachable within 13 AS hops100
     
ASes by AS distance(data)   % ASes by AS hops(data)
    ASes reachable at 0 AS hops1       % ASes reachable at 0 AS hops0
    ASes reachable at 1 AS hops2       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops226       % ASes reachable at 2 AS hops0
    ASes reachable at 3 AS hops6743       % ASes reachable at 3 AS hops9
    ASes reachable at 4 AS hops28749       % ASes reachable at 4 AS hops39
    ASes reachable at 5 AS hops28590       % ASes reachable at 5 AS hops38
    ASes reachable at 6 AS hops7245       % ASes reachable at 6 AS hops9
    ASes reachable at 7 AS hops1448       % ASes reachable at 7 AS hops1
    ASes reachable at 8 AS hops350       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops166       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops88       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops5       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops0       % ASes reachable at 12 AS hops0
    ASes reachable at 13 AS hops0       % ASes reachable at 13 AS hops0
     
Cumulative ASes by AS hops(data)   Cumulative % ASes by AS hops(data)
    ASes reachable by 0 AS hops1       Cumulative % ASes by AS hops 00.0
    ASes reachable by 1 AS hops3       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops229       Cumulative % ASes by AS hops 20.3
    ASes reachable by 3 AS hops6972       Cumulative % ASes by AS hops 39.5
    ASes reachable by 4 AS hops35721       Cumulative % ASes by AS hops 448.5
    ASes reachable by 5 AS hops64311       Cumulative % ASes by AS hops 587.4
    ASes reachable by 6 AS hops71556       Cumulative % ASes by AS hops 697.2
    ASes reachable by 7 AS hops73004       Cumulative % ASes by AS hops 799.2
    ASes reachable by 8 AS hops73354       Cumulative % ASes by AS hops 899.6
    ASes reachable by 9 AS hops73520       Cumulative % ASes by AS hops 999.9
    ASes reachable by 10 AS hops73608       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops73613       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops73613       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops73613       Cumulative % ASes by AS hops 13100.0

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 Updates2623   New Entries241   Removed Entries234   Updated Entries2148
     Report     Report     Report 
    Address Span3041664       Address Span118528       Address Span476416       Address Span2446720
    Average address span per update1159       Avg Span491       Avg Span2035       Avg Span1139
    Average prefix size updated23.39       Average prefix size23.49       Average prefix size22.85       Average prefix size23.44
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /13 total1         Prefix /13 announcements0         Prefix /13 withdrawals0         Prefix /13 path updates1
      Prefix /14 total0         Prefix /14 announcements0         Prefix /14 withdrawals0         Prefix /14 path updates0
      Prefix /15 total1         Prefix /15 announcements0         Prefix /15 withdrawals0         Prefix /15 path updates1
      Prefix /16 total5         Prefix /16 announcements0         Prefix /16 withdrawals2         Prefix /16 path updates3
      Prefix /17 total1         Prefix /17 announcements0         Prefix /17 withdrawals0         Prefix /17 path updates1
      Prefix /18 total1         Prefix /18 announcements0         Prefix /18 withdrawals0         Prefix /18 path updates1
      Prefix /19 total54         Prefix /19 announcements0         Prefix /19 withdrawals28         Prefix /19 path updates26
      Prefix /20 total151         Prefix /20 announcements5         Prefix /20 withdrawals6         Prefix /20 path updates140
      Prefix /21 total68         Prefix /21 announcements3         Prefix /21 withdrawals13         Prefix /21 path updates52
      Prefix /22 total238         Prefix /22 announcements32         Prefix /22 withdrawals18         Prefix /22 path updates188
      Prefix /23 total243         Prefix /23 announcements30         Prefix /23 withdrawals14         Prefix /23 path updates199
      Prefix /24 total1587         Prefix /24 announcements171         Prefix /24 withdrawals153         Prefix /24 path updates1263
      Prefix /25 total273         Prefix /25 announcements0         Prefix /25 withdrawals0         Prefix /25 path updates273
      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 total0.59         Prefix /13 announcements0.00         Prefix /13 withdrawals0.00         Prefix /13 path updates0.73
      Prefix /14 total0.00         Prefix /14 announcements0.00         Prefix /14 withdrawals0.00         Prefix /14 path updates0.00
      Prefix /15 total0.17         Prefix /15 announcements0.00         Prefix /15 withdrawals0.00         Prefix /15 path updates0.20
      Prefix /16 total0.13         Prefix /16 announcements0.00         Prefix /16 withdrawals0.58         Prefix /16 path updates0.10
      Prefix /17 total0.04         Prefix /17 announcements0.00         Prefix /17 withdrawals0.00         Prefix /17 path updates0.05
      Prefix /18 total0.02         Prefix /18 announcements0.00         Prefix /18 withdrawals0.00         Prefix /18 path updates0.03
      Prefix /19 total0.75         Prefix /19 announcements0.00         Prefix /19 withdrawals4.35         Prefix /19 path updates0.44
      Prefix /20 total1.18         Prefix /20 announcements0.42         Prefix /20 withdrawals0.52         Prefix /20 path updates1.33
      Prefix /21 total0.45         Prefix /21 announcements0.22         Prefix /21 withdrawals0.96         Prefix /21 path updates0.42
      Prefix /22 total0.76         Prefix /22 announcements1.11         Prefix /22 withdrawals0.64         Prefix /22 path updates0.73
      Prefix /23 total0.85         Prefix /23 announcements1.14         Prefix /23 withdrawals0.55         Prefix /23 path updates0.85
      Prefix /24 total1.02         Prefix /24 announcements1.20         Prefix /24 withdrawals1.10         Prefix /24 path updates0.99
      Prefix /25 total121.36         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates148.20
      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 announcements0.00         Prefix /32 withdrawals0.00         Prefix /32 path updates0.00

FIB Update Rate Reports
Updates per hour
(Measurement Period 1 hrs 0 mins)
Data  Announce RateData  Withdraw RateData  Path Chg RateData
Table Updates2623.000   New Entries241.000   Removed Entries234.000   Updated Entries2148.000
    Address Span3041664.000       Address Span118528.000       Address Span476416.000       Address Span2446720.000
    Average address span per update1159.000       Avg Span491.000       Avg Span2035.000       Avg Span1139.000
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 rate1.000         Prefix /13 announcements0.000         Prefix /13 withdrawals0.000         Prefix /13 path updates1.000
      Prefix /14 update rate0.000         Prefix /14 announcements0.000         Prefix /14 withdrawals0.000         Prefix /14 path updates0.000
      Prefix /15 update rate1.000         Prefix /15 announcements0.000         Prefix /15 withdrawals0.000         Prefix /15 path updates1.000
      Prefix /16 update rate5.000         Prefix /16 announcements0.000         Prefix /16 withdrawals2.000         Prefix /16 path updates3.000
      Prefix /17 update rate1.000         Prefix /17 announcements0.000         Prefix /17 withdrawals0.000         Prefix /17 path updates1.000
      Prefix /18 update rate1.000         Prefix /18 announcements0.000         Prefix /18 withdrawals0.000         Prefix /18 path updates1.000
      Prefix /19 update rate54.000         Prefix /19 announcements0.000         Prefix /19 withdrawals28.000         Prefix /19 path updates26.000
      Prefix /20 update rate151.000         Prefix /20 announcements5.000         Prefix /20 withdrawals6.000         Prefix /20 path updates140.000
      Prefix /21 update rate68.000         Prefix /21 announcements3.000         Prefix /21 withdrawals13.000         Prefix /21 path updates52.000
      Prefix /22 update rate238.000         Prefix /22 announcements32.000         Prefix /22 withdrawals18.000         Prefix /22 path updates188.000
      Prefix /23 update rate243.000         Prefix /23 announcements30.000         Prefix /23 withdrawals14.000         Prefix /23 path updates199.000
      Prefix /24 update rate1587.000         Prefix /24 announcements171.000         Prefix /24 withdrawals153.000         Prefix /24 path updates1263.000
      Prefix /25 update rate273.000         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates273.000
      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 Changes909   Origin Paths76   NextHop Paths256   Transit Paths319   Paths236   Paths22
 Report
      /13 Tot1         /13 Org0         /13 Nxt0         /13 Trn0         /13 Fst1         /13 Prp0
      /14 Tot0         /14 Org0         /14 Nxt0         /14 Trn0         /14 Fst0         /14 Prp0
      /15 Tot1         /15 Org0         /15 Nxt0         /15 Trn1         /15 Fst0         /15 Prp0
      /16 Tot3         /16 Org0         /16 Nxt0         /16 Trn0         /16 Fst2         /16 Prp1
      /17 Tot1         /17 Org0         /17 Nxt1         /17 Trn0         /17 Fst0         /17 Prp0
      /18 Tot1         /18 Org0         /18 Nxt0         /18 Trn1         /18 Fst0         /18 Prp0
      /19 Tot26         /19 Org0         /19 Nxt10         /19 Trn5         /19 Fst11         /19 Prp0
      /20 Tot140         /20 Org0         /20 Nxt119         /20 Trn13         /20 Fst6         /20 Prp2
      /21 Tot52         /21 Org0         /21 Nxt15         /21 Trn17         /21 Fst20         /21 Prp0
      /22 Tot188         /22 Org6         /22 Nxt69         /22 Trn43         /22 Fst70         /22 Prp0
      /23 Tot199         /23 Org0         /23 Nxt104         /23 Trn43         /23 Fst47         /23 Prp5
      /24 Tot1263         /24 Org9         /24 Nxt347         /24 Trn476         /24 Fst401         /24 Prp30
      /25 Tot273         /25 Org68         /25 Nxt20         /25 Trn0         /25 Fst185         /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 /725       % AS's announcing span of /70.0003
    AS's announcing span of /842       % 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 /10102       % AS's announcing span of /100.0014
    AS's announcing span of /11175       % AS's announcing span of /110.0024
    AS's announcing span of /12236       % AS's announcing span of /120.0032
    AS's announcing span of /13434       % AS's announcing span of /130.0059
    AS's announcing span of /14841       % AS's announcing span of /140.0115
    AS's announcing span of /151727       % AS's announcing span of /150.0236
    AS's announcing span of /161847       % AS's announcing span of /160.0253
    AS's announcing span of /172455       % AS's announcing span of /170.0336
    AS's announcing span of /183828       % AS's announcing span of /180.0524
    AS's announcing span of /195102       % AS's announcing span of /190.0698
    AS's announcing span of /207554       % AS's announcing span of /200.1033
    AS's announcing span of /2110396       % AS's announcing span of /210.1422
    AS's announcing span of /2212461       % AS's announcing span of /220.1704
    AS's announcing span of /238446       % AS's announcing span of /230.1155
    AS's announcing span of /2417336       % AS's announcing span of /240.2371
    AS's announcing span of /2517       % AS's announcing span of /250.0002
    AS's announcing span of /261       % 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 /301       % AS's announcing span of /300.0000
    AS's announcing span of /311       % 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 Count120713
Average AS Connectivity Degree (241426/73613)3.2797
Average AS Connectivity IN:OUT Degree0.1527
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 Path513521Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path501005Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin344417Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation344461Report (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 Wed Jul 6 12:10:14 2022 (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