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   AS65000 BGP Routing Table Analysis Report












   
  BGP data obtained from AS65000
Report last updated at Tue Feb 7 01:15:00 2023 (UTC+1000).
 

Active BGP entries (FIB)


Table Size Metrics

The trend of the size of the BGP Forwarding Table (FIB). Also the underlying BGP Routing Table (RIB). The RIB/FIB ratio is a function of the number of BGP peering sessions at the sample point. Some RIB entries are marked as unusable as an outcome of protocol operation, and these categories of unusable advertisements are tracked.

FIB / RIB Table Reports (plots)Data Sets(txt)
Active BGP entries (FIB)943648   Change in FIB Size-83   Change (%)-0.009
    All BGP entries (RIB)2797779
    RIB/FIB ratio (2797779/943648)2.9649
      Valid entries2797779
      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)3063737728
    Total address space advertised (prefix length)0.48735435
    Percentage of IPv4 space advertised (3063737728/4294967295)71.333203
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3247
    Average address span (as prefix size)20.3356
Average prefix length22.8451

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 aggregates497933       Specifics as % of FIB entries (497933/943648)52.7668
    Specifics as % of address span (1109759937/3063737728)36.2224    
    Specifics where AS prepended Path matches aggregate224609         AS-P_Path-Match % (224609/497933)45.11
    AS Path matches aggregate237308         AS-Path-Match % (237308/497933)47.6586
    AS Origin matches aggregate386606         AS-Origin-Match % (386606/497933)77.6422
    Root Prefixes445715
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0389557
      Root Prefixes with depth 145113
      Root Prefixes with depth 29004
      Root Prefixes with depth 31510
      Root Prefixes with depth 4404
      Root Prefixes with depth 587
      Root Prefixes with depth 628
      Root Prefixes with depth 711
      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 ASes74252       ASes visible in only one AS path44650
    Origin only ASes63431         Origin ASs announced via a single AS path44198
    Transit only ASes453       Originating AS ATOM count73799
    Mixed ASes10368         Originating AS ATOM compression0.0782
    Multi-Origin Prefixes2141    
    ASes originating a single prefix25881    
    Average entries per origin AS12.7867         Maximum entries for an origin AS (AS7713)3526
    Average address range span for an origin AS41514.6239         Maximum address range for an origin AS (AS749)210705408

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 Paths238988       Unique AS prepended Paths256648
AS Paths used in FIB121766       AS Paths using prepending64911
    AS paths associated with a single FIB entry57083       AS Paths using private ASs39
    Average AS path length5.2902       Number of Prefixes with Selected AS Prepending Paths124932
      Maximum AS Path length15       Number of Prefixes with AS Prepending Paths124932
    Average address weighted AS path length6.7064         Maximum prepended AS Path length58
    Average entries per AS Path3.9485       Average entries per FIB AS Path7.7497
    AS Paths per origin AS3.2384       FIB AS Paths per origin AS1.6500
      AS PATH ATOM compression0.1290    

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 /1039       % Prefix /100.00
    Prefix count /11103       % Prefix /110.01
    Prefix count /12300       % Prefix /120.03
    Prefix count /13581       % Prefix /130.06
    Prefix count /141200       % Prefix /140.13
    Prefix count /152091       % Prefix /150.22
    Prefix count /1613527       % Prefix /161.43
    Prefix count /178377       % Prefix /170.89
    Prefix count /1814151       % Prefix /181.50
    Prefix count /1925548       % Prefix /192.71
    Prefix count /2045163       % Prefix /204.79
    Prefix count /2153736       % Prefix /215.69
    Prefix count /22111800       % Prefix /2211.85
    Prefix count /23102707       % Prefix /2310.88
    Prefix count /24563447       % Prefix /2459.71
    Prefix count /25813       % Prefix /250.09
    Prefix count /260       % Prefix /260.00
    Prefix count /278       % Prefix /270.00
    Prefix count /288       % Prefix /280.00
    Prefix count /296       % Prefix /290.00
    Prefix count /301       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /3213       % 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 /1039       % Prefix /100.01
    Prefix count /1198       % Prefix /110.02
    Prefix count /12267       % Prefix /120.06
    Prefix count /13484       % Prefix /130.11
    Prefix count /141022       % Prefix /140.23
    Prefix count /151637       % Prefix /150.37
    Prefix count /1610296       % Prefix /162.31
    Prefix count /174484       % Prefix /171.01
    Prefix count /186938       % Prefix /181.56
    Prefix count /1915059       % Prefix /193.38
    Prefix count /2019401       % Prefix /204.35
    Prefix count /2122994       % Prefix /215.16
    Prefix count /2259437       % Prefix /2213.34
    Prefix count /2341615       % Prefix /239.34
    Prefix count /24261912       % Prefix /2458.76
    Prefix count /257       % Prefix /250.00
    Prefix count /260       % Prefix /260.00
    Prefix count /270       % Prefix /270.00
    Prefix count /280       % Prefix /280.00
    Prefix count /290       % Prefix /290.00
    Prefix count /300       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /320       % Prefix /320.00

AS Diameter Reports

The time trend of the reacahbility of addresses and AS's using AS distance from the sample point to the origin AS as the diameter metric.

AS Diameter Reports (plots)Data Sets(txt)  Percentage Reports (plots)Data Sets(txt)
Addresses by AS distance(data)   Address percentage by AS distance(data)
    Addresses at AS distance 0256       % Addresses at AS distance 00.0
    Addresses at AS distance 170912       % Addresses at AS distance 10.0
    Addresses at AS distance 2210032830       % Addresses at AS distance 25.0
    Addresses at AS distance 31154404579       % Addresses at AS distance 327.7
    Addresses at AS distance 41867924256       % Addresses at AS distance 444.8
    Addresses at AS distance 5735011968       % Addresses at AS distance 517.6
    Addresses at AS distance 6140668160       % Addresses at AS distance 63.4
    Addresses at AS distance 734690304       % Addresses at AS distance 70.8
    Addresses at AS distance 821679616       % Addresses at AS distance 80.5
    Addresses at AS distance 97931904       % Addresses at AS distance 90.2
    Addresses at AS distance 10705024       % Addresses at AS distance 100.0
    Addresses at AS distance 11350208       % Addresses at AS distance 110.0
    Addresses at AS distance 1227136       % Addresses at AS distance 120.0
    Addresses at AS distance 13512       % Addresses at AS distance 130.0
    Addresses at AS distance 140       % Addresses at AS distance 140.0
     
Cumulative Address by AS distance(data)   Cumulative % Address by AS distance(data)
    Addresses reachable within 0 AS hops256       % Addresses reachable within 0 AS hops0
    Addresses reachable within 1 AS hops71168       % Addresses reachable within 1 AS hops0
    Addresses reachable within 2 AS hops210103998       % Addresses reachable within 2 AS hops5
    Addresses reachable within 3 AS hops1364508577       % Addresses reachable within 3 AS hops32
    Addresses reachable within 4 AS hops3232432833       % Addresses reachable within 4 AS hops77
    Addresses reachable within 5 AS hops3967444801       % Addresses reachable within 5 AS hops95
    Addresses reachable within 6 AS hops4108112961       % Addresses reachable within 6 AS hops98
    Addresses reachable within 7 AS hops4142803265       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4164482881       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4172414785       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4173119809       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4173470017       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4173497153       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops4173497665       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops4173497665       % Addresses reachable within 14 AS hops100
     
ASes by AS distance(data)   % ASes by AS hops(data)
    ASes reachable at 0 AS hops1       % ASes reachable at 0 AS hops0
    ASes reachable at 1 AS hops2       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops221       % ASes reachable at 2 AS hops0
    ASes reachable at 3 AS hops7068       % ASes reachable at 3 AS hops9
    ASes reachable at 4 AS hops29782       % ASes reachable at 4 AS hops40
    ASes reachable at 5 AS hops28271       % ASes reachable at 5 AS hops38
    ASes reachable at 6 AS hops6911       % ASes reachable at 6 AS hops9
    ASes reachable at 7 AS hops1454       % ASes reachable at 7 AS hops1
    ASes reachable at 8 AS hops355       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops143       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops33       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops11       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops0       % ASes reachable at 12 AS hops0
    ASes reachable at 13 AS hops0       % ASes reachable at 13 AS hops0
    ASes reachable at 14 AS hops0       % ASes reachable at 14 AS hops0
     
Cumulative ASes by AS hops(data)   Cumulative % ASes by AS hops(data)
    ASes reachable by 0 AS hops1       Cumulative % ASes by AS hops 00.0
    ASes reachable by 1 AS hops3       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops224       Cumulative % ASes by AS hops 20.3
    ASes reachable by 3 AS hops7292       Cumulative % ASes by AS hops 39.8
    ASes reachable by 4 AS hops37074       Cumulative % ASes by AS hops 449.9
    ASes reachable by 5 AS hops65345       Cumulative % ASes by AS hops 588.0
    ASes reachable by 6 AS hops72256       Cumulative % ASes by AS hops 697.3
    ASes reachable by 7 AS hops73710       Cumulative % ASes by AS hops 799.3
    ASes reachable by 8 AS hops74065       Cumulative % ASes by AS hops 899.7
    ASes reachable by 9 AS hops74208       Cumulative % ASes by AS hops 999.9
    ASes reachable by 10 AS hops74241       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops74252       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops74252       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops74252       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops74252       Cumulative % ASes by AS hops 14100.0

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 Updates2197   New Entries171   Removed Entries259   Updated Entries1767
     Report     Report     Report 
    Address Span3307904       Address Span125440       Address Span265472       Address Span2916992
    Average address span per update1505       Avg Span733       Avg Span1024       Avg Span1650
    Average prefix size updated23.20       Average prefix size23.26       Average prefix size23.27       Average prefix size23.19
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /16 total15         Prefix /16 announcements0         Prefix /16 withdrawals1         Prefix /16 path updates14
      Prefix /17 total10         Prefix /17 announcements0         Prefix /17 withdrawals0         Prefix /17 path updates10
      Prefix /18 total23         Prefix /18 announcements0         Prefix /18 withdrawals2         Prefix /18 path updates21
      Prefix /19 total38         Prefix /19 announcements2         Prefix /19 withdrawals1         Prefix /19 path updates35
      Prefix /20 total83         Prefix /20 announcements7         Prefix /20 withdrawals10         Prefix /20 path updates66
      Prefix /21 total107         Prefix /21 announcements10         Prefix /21 withdrawals18         Prefix /21 path updates79
      Prefix /22 total287         Prefix /22 announcements23         Prefix /22 withdrawals19         Prefix /22 path updates245
      Prefix /23 total292         Prefix /23 announcements13         Prefix /23 withdrawals33         Prefix /23 path updates246
      Prefix /24 total1053         Prefix /24 announcements116         Prefix /24 withdrawals175         Prefix /24 path updates762
      Prefix /25 total289         Prefix /25 announcements0         Prefix /25 withdrawals0         Prefix /25 path updates289
      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 total0.48         Prefix /16 announcements0.00         Prefix /16 withdrawals0.27         Prefix /16 path updates0.55
      Prefix /17 total0.51         Prefix /17 announcements0.00         Prefix /17 withdrawals0.00         Prefix /17 path updates0.64
      Prefix /18 total0.70         Prefix /18 announcements0.00         Prefix /18 withdrawals0.51         Prefix /18 path updates0.79
      Prefix /19 total0.64         Prefix /19 announcements0.43         Prefix /19 withdrawals0.14         Prefix /19 path updates0.73
      Prefix /20 total0.79         Prefix /20 announcements0.86         Prefix /20 withdrawals0.81         Prefix /20 path updates0.78
      Prefix /21 total0.86         Prefix /21 announcements1.03         Prefix /21 withdrawals1.22         Prefix /21 path updates0.79
      Prefix /22 total1.10         Prefix /22 announcements1.14         Prefix /22 withdrawals0.62         Prefix /22 path updates1.17
      Prefix /23 total1.22         Prefix /23 announcements0.70         Prefix /23 withdrawals1.17         Prefix /23 path updates1.28
      Prefix /24 total0.80         Prefix /24 announcements1.14         Prefix /24 withdrawals1.13         Prefix /24 path updates0.72
      Prefix /25 total152.68         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates189.84
      Prefix /26 total0.00         Prefix /26 announcements100.00         Prefix /26 withdrawals100.00         Prefix /26 path updates100.00
      Prefix /27 total0.00         Prefix /27 announcements0.00         Prefix /27 withdrawals0.00         Prefix /27 path updates0.00
      Prefix /28 total0.00         Prefix /28 announcements0.00         Prefix /28 withdrawals0.00         Prefix /28 path updates0.00
      Prefix /29 total0.00         Prefix /29 announcements0.00         Prefix /29 withdrawals0.00         Prefix /29 path updates0.00
      Prefix /30 total0.00         Prefix /30 announcements0.00         Prefix /30 withdrawals0.00         Prefix /30 path updates0.00
      Prefix /31 total0.00         Prefix /31 announcements100.00         Prefix /31 withdrawals100.00         Prefix /31 path updates100.00
      Prefix /32 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 Updates2197.000   New Entries171.000   Removed Entries259.000   Updated Entries1767.000
    Address Span3307904.000       Address Span125440.000       Address Span265472.000       Address Span2916992.000
    Average address span per update1505.000       Avg Span733.000       Avg Span1024.000       Avg Span1650.000
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 rate15.000         Prefix /16 announcements0.000         Prefix /16 withdrawals1.000         Prefix /16 path updates14.000
      Prefix /17 update rate10.000         Prefix /17 announcements0.000         Prefix /17 withdrawals0.000         Prefix /17 path updates10.000
      Prefix /18 update rate23.000         Prefix /18 announcements0.000         Prefix /18 withdrawals2.000         Prefix /18 path updates21.000
      Prefix /19 update rate38.000         Prefix /19 announcements2.000         Prefix /19 withdrawals1.000         Prefix /19 path updates35.000
      Prefix /20 update rate83.000         Prefix /20 announcements7.000         Prefix /20 withdrawals10.000         Prefix /20 path updates66.000
      Prefix /21 update rate107.000         Prefix /21 announcements10.000         Prefix /21 withdrawals18.000         Prefix /21 path updates79.000
      Prefix /22 update rate287.000         Prefix /22 announcements23.000         Prefix /22 withdrawals19.000         Prefix /22 path updates245.000
      Prefix /23 update rate292.000         Prefix /23 announcements13.000         Prefix /23 withdrawals33.000         Prefix /23 path updates246.000
      Prefix /24 update rate1053.000         Prefix /24 announcements116.000         Prefix /24 withdrawals175.000         Prefix /24 path updates762.000
      Prefix /25 update rate289.000         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates289.000
      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 Changes667   Origin Paths74   NextHop Paths166   Transit Paths259   Paths143   Paths25
 Report
      /16 Tot14         /16 Org0         /16 Nxt3         /16 Trn0         /16 Fst10         /16 Prp1
      /17 Tot10         /17 Org0         /17 Nxt0         /17 Trn1         /17 Fst8         /17 Prp1
      /18 Tot21         /18 Org1         /18 Nxt9         /18 Trn0         /18 Fst9         /18 Prp2
      /19 Tot35         /19 Org0         /19 Nxt17         /19 Trn4         /19 Fst13         /19 Prp1
      /20 Tot66         /20 Org0         /20 Nxt7         /20 Trn10         /20 Fst45         /20 Prp4
      /21 Tot79         /21 Org0         /21 Nxt14         /21 Trn20         /21 Fst41         /21 Prp4
      /22 Tot245         /22 Org0         /22 Nxt69         /22 Trn85         /22 Fst85         /22 Prp6
      /23 Tot246         /23 Org1         /23 Nxt29         /23 Trn34         /23 Fst151         /23 Prp31
      /24 Tot762         /24 Org10         /24 Nxt122         /24 Trn200         /24 Fst387         /24 Prp43
      /25 Tot289         /25 Org69         /25 Nxt19         /25 Trn0         /25 Fst201         /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 /60.0001
    AS's announcing span of /723       % AS's announcing span of /70.0003
    AS's announcing span of /843       % AS's announcing span of /80.0006
    AS's announcing span of /978       % 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 /11172       % AS's announcing span of /110.0023
    AS's announcing span of /12232       % AS's announcing span of /120.0031
    AS's announcing span of /13425       % AS's announcing span of /130.0058
    AS's announcing span of /14836       % AS's announcing span of /140.0113
    AS's announcing span of /151718       % AS's announcing span of /150.0233
    AS's announcing span of /161836       % AS's announcing span of /160.0249
    AS's announcing span of /172446       % AS's announcing span of /170.0332
    AS's announcing span of /183833       % AS's announcing span of /180.0520
    AS's announcing span of /195111       % AS's announcing span of /190.0693
    AS's announcing span of /207626       % AS's announcing span of /200.1034
    AS's announcing span of /2110361       % AS's announcing span of /210.1405
    AS's announcing span of /2212462       % AS's announcing span of /220.1690
    AS's announcing span of /238760       % AS's announcing span of /230.1188
    AS's announcing span of /2417634       % AS's announcing span of /240.2392
    AS's announcing span of /2515       % 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.

% %
AS Connectivity ReportData
AS Adjacency Count121818
Average AS Connectivity Degree (243636/74252)3.2812
Average AS Connectivity IN:OUT Degree0.1522
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 Path518217Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path504034Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin351602Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation351626Report (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 Feb 7 01:15:00 2023 (UTC+1000).

Data prior to 11 April 97 interpreted from data gathered by Erik-Jan Bos, SURFnet.

BGP table analyser written and maintained by Geoff Huston.


Footnote