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   AS65000 BGP Routing Table Analysis Report












   
  BGP data obtained from AS65000
Report last updated at Sat Feb 24 03:10:12 2018 (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)707470   Change in FIB Size25   Change (%)0.004
    All BGP entries (RIB)1384264
    RIB/FIB ratio (1384264/707470)1.9566
      Valid entries1384264
      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)2855052534
    Total address space advertised (prefix length)0.58912985
    Percentage of IPv4 space advertised (2855052534/4294967295)66.474372
    Total address space advertised - corrected to 19 /8s(data)
Average address span 4036
    Average address span (as prefix size)20.0216
Average prefix length22.6574

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 aggregates376685       Specifics as % of FIB entries (376685/707470)53.2440
    Specifics as % of address span (1035114972/2855052534)36.2555    
    Specifics where AS prepended Path matches aggregate167504         AS-P_Path-Match % (167504/376685)44.47
    AS Path matches aggregate176893         AS-Path-Match % (176893/376685)46.9605
    AS Origin matches aggregate286010         AS-Origin-Match % (286010/376685)75.9282
    Root Prefixes330785
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0286391
      Root Prefixes with depth 135443
      Root Prefixes with depth 27124
      Root Prefixes with depth 31407
      Root Prefixes with depth 4322
      Root Prefixes with depth 570
      Root Prefixes with depth 621
      Root Prefixes with depth 77

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 ASes60181       ASes visible in only one AS path37644
    Origin only ASes51649         Origin ASs announced via a single AS path37305
    Transit only ASes263       Originating AS ATOM count59918
    Mixed ASes8269         Originating AS ATOM compression0.0847
    Multi-Origin Prefixes1901    
    ASes originating a single prefix22540    
    Average entries per origin AS11.8073         Maximum entries for an origin AS (AS7545)4244
    Average address range span for an origin AS47649.3297         Maximum address range for an origin AS (AS4134)119404032

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 Paths176759       Unique AS prepended Paths188300
AS Paths used in FIB93026       AS Paths using prepending42748
    AS paths associated with a single FIB entry43191       AS Paths using private ASs37
    Average AS path length5.6870         Maximum AS Path length13
    Average address weighted AS path length6.9757         Maximum prepended AS Path length37
    Average entries per AS Path4.0025       Average entries per FIB AS Path7.6051
    AS Paths per origin AS2.9500       FIB AS Paths per origin AS1.5526
      AS PATH ATOM compression0.1315    

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 /814       % Prefix /80.00
    Prefix count /911       % Prefix /90.00
    Prefix count /1037       % Prefix /100.01
    Prefix count /11100       % Prefix /110.01
    Prefix count /12292       % Prefix /120.04
    Prefix count /13563       % Prefix /130.08
    Prefix count /141101       % Prefix /140.16
    Prefix count /151911       % Prefix /150.27
    Prefix count /1613381       % Prefix /161.89
    Prefix count /177943       % Prefix /171.12
    Prefix count /1813846       % Prefix /181.96
    Prefix count /1925629       % Prefix /193.62
    Prefix count /2039630       % Prefix /205.60
    Prefix count /2146189       % Prefix /216.53
    Prefix count /2286112       % Prefix /2212.17
    Prefix count /2372198       % Prefix /2310.21
    Prefix count /24396048       % Prefix /2455.98
    Prefix count /25894       % Prefix /250.13
    Prefix count /26627       % Prefix /260.09
    Prefix count /27704       % Prefix /270.10
    Prefix count /2874       % Prefix /280.01
    Prefix count /2941       % Prefix /290.01
    Prefix count /3053       % Prefix /300.01
    Prefix count /3114       % Prefix /310.00
    Prefix count /3258       % 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 /814       % Prefix /80.00
    Prefix count /95       % Prefix /90.00
    Prefix count /1037       % Prefix /100.01
    Prefix count /1193       % Prefix /110.03
    Prefix count /12253       % Prefix /120.08
    Prefix count /13457       % Prefix /130.14
    Prefix count /14954       % Prefix /140.29
    Prefix count /151538       % Prefix /150.46
    Prefix count /1610007       % Prefix /163.03
    Prefix count /174400       % Prefix /171.33
    Prefix count /187343       % Prefix /182.22
    Prefix count /1915074       % Prefix /194.56
    Prefix count /2018748       % Prefix /205.67
    Prefix count /2121614       % Prefix /216.53
    Prefix count /2246313       % Prefix /2214.00
    Prefix count /2327217       % Prefix /238.23
    Prefix count /24176679       % Prefix /2453.41
    Prefix count /257       % Prefix /250.00
    Prefix count /2610       % Prefix /260.00
    Prefix count /2714       % Prefix /270.00
    Prefix count /282       % Prefix /280.00
    Prefix count /291       % Prefix /290.00
    Prefix count /303       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /322       % 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 111776       % Addresses at AS distance 10.0
    Addresses at AS distance 2102253728       % Addresses at AS distance 22.6
    Addresses at AS distance 31007762940       % Addresses at AS distance 325.9
    Addresses at AS distance 41510752128       % Addresses at AS distance 438.8
    Addresses at AS distance 5952393237       % Addresses at AS distance 524.5
    Addresses at AS distance 6255775937       % Addresses at AS distance 66.6
    Addresses at AS distance 739384256       % Addresses at AS distance 71.0
    Addresses at AS distance 815183776       % Addresses at AS distance 80.4
    Addresses at AS distance 95252224       % Addresses at AS distance 90.1
    Addresses at AS distance 101380608       % Addresses at AS distance 100.0
    Addresses at AS distance 1116640       % Addresses at AS distance 110.0
    Addresses at AS distance 120       % Addresses at AS distance 120.0
     
Cumulative Address by AS distance(data)   Cumulative % Address by AS distance(data)
    Addresses reachable within 0 AS hops256       % Addresses reachable within 0 AS hops0
    Addresses reachable within 1 AS hops12032       % Addresses reachable within 1 AS hops0
    Addresses reachable within 2 AS hops102265760       % Addresses reachable within 2 AS hops2
    Addresses reachable within 3 AS hops1110028700       % Addresses reachable within 3 AS hops28
    Addresses reachable within 4 AS hops2620780828       % Addresses reachable within 4 AS hops67
    Addresses reachable within 5 AS hops3573174065       % Addresses reachable within 5 AS hops91
    Addresses reachable within 6 AS hops3828950002       % Addresses reachable within 6 AS hops98
    Addresses reachable within 7 AS hops3868334258       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops3883518034       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops3888770258       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops3890150866       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops3890167506       % Addresses reachable within 11 AS hops100
    Addresses reachable within 12 AS hops3890167506       % 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 hops4       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops94       % ASes reachable at 2 AS hops0
    ASes reachable at 3 AS hops1298       % ASes reachable at 3 AS hops2
    ASes reachable at 4 AS hops19521       % ASes reachable at 4 AS hops32
    ASes reachable at 5 AS hops26610       % ASes reachable at 5 AS hops44
    ASes reachable at 6 AS hops10216       % ASes reachable at 6 AS hops16
    ASes reachable at 7 AS hops1957       % ASes reachable at 7 AS hops3
    ASes reachable at 8 AS hops339       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops113       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops27       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops1       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops0       % ASes reachable at 12 AS hops0
     
Cumulative ASes by AS hops(data)   Cumulative % ASes by AS hops(data)
    ASes reachable by 0 AS hops1       Cumulative % ASes by AS hops 00.0
    ASes reachable by 1 AS hops5       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops99       Cumulative % ASes by AS hops 20.2
    ASes reachable by 3 AS hops1397       Cumulative % ASes by AS hops 32.3
    ASes reachable by 4 AS hops20918       Cumulative % ASes by AS hops 434.8
    ASes reachable by 5 AS hops47528       Cumulative % ASes by AS hops 579.0
    ASes reachable by 6 AS hops57744       Cumulative % ASes by AS hops 696.0
    ASes reachable by 7 AS hops59701       Cumulative % ASes by AS hops 799.2
    ASes reachable by 8 AS hops60040       Cumulative % ASes by AS hops 899.8
    ASes reachable by 9 AS hops60153       Cumulative % ASes by AS hops 9100.0
    ASes reachable by 10 AS hops60180       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops60181       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops60181       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 Updates1619   New Entries153   Removed Entries126   Updated Entries1340
     Report     Report     Report 
    Address Span1351160       Address Span620544       Address Span87296       Address Span643320
    Average address span per update834       Avg Span4055       Avg Span692       Avg Span480
    Average prefix size updated24.70       Average prefix size21.86       Average prefix size23.35       Average prefix size25.15
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /16 total9         Prefix /16 announcements6         Prefix /16 withdrawals0         Prefix /16 path updates3
      Prefix /17 total0         Prefix /17 announcements0         Prefix /17 withdrawals0         Prefix /17 path updates0
      Prefix /18 total2         Prefix /18 announcements1         Prefix /18 withdrawals0         Prefix /18 path updates1
      Prefix /19 total6         Prefix /19 announcements0         Prefix /19 withdrawals2         Prefix /19 path updates4
      Prefix /20 total26         Prefix /20 announcements9         Prefix /20 withdrawals5         Prefix /20 path updates12
      Prefix /21 total149         Prefix /21 announcements75         Prefix /21 withdrawals3         Prefix /21 path updates71
      Prefix /22 total62         Prefix /22 announcements5         Prefix /22 withdrawals14         Prefix /22 path updates43
      Prefix /23 total52         Prefix /23 announcements3         Prefix /23 withdrawals15         Prefix /23 path updates34
      Prefix /24 total463         Prefix /24 announcements54         Prefix /24 withdrawals87         Prefix /24 path updates322
      Prefix /25 total269         Prefix /25 announcements0         Prefix /25 withdrawals0         Prefix /25 path updates269
      Prefix /26 total253         Prefix /26 announcements0         Prefix /26 withdrawals0         Prefix /26 path updates253
      Prefix /27 total245         Prefix /27 announcements0         Prefix /27 withdrawals0         Prefix /27 path updates245
      Prefix /28 total28         Prefix /28 announcements0         Prefix /28 withdrawals0         Prefix /28 path updates28
      Prefix /29 total10         Prefix /29 announcements0         Prefix /29 withdrawals0         Prefix /29 path updates10
      Prefix /30 total29         Prefix /30 announcements0         Prefix /30 withdrawals0         Prefix /30 path updates29
      Prefix /31 total4         Prefix /31 announcements0         Prefix /31 withdrawals0         Prefix /31 path updates4
      Prefix /32 total12         Prefix /32 announcements0         Prefix /32 withdrawals0         Prefix /32 path updates12
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 total0.29         Prefix /16 announcements2.07         Prefix /16 withdrawals0.00         Prefix /16 path updates0.12
      Prefix /17 total0.00         Prefix /17 announcements0.00         Prefix /17 withdrawals0.00         Prefix /17 path updates0.00
      Prefix /18 total0.06         Prefix /18 announcements0.33         Prefix /18 withdrawals0.00         Prefix /18 path updates0.04
      Prefix /19 total0.10         Prefix /19 announcements0.00         Prefix /19 withdrawals0.44         Prefix /19 path updates0.08
      Prefix /20 total0.29         Prefix /20 announcements1.05         Prefix /20 withdrawals0.71         Prefix /20 path updates0.16
      Prefix /21 total1.41         Prefix /21 announcements7.51         Prefix /21 withdrawals0.36         Prefix /21 path updates0.81
      Prefix /22 total0.31         Prefix /22 announcements0.27         Prefix /22 withdrawals0.91         Prefix /22 path updates0.26
      Prefix /23 total0.31         Prefix /23 announcements0.19         Prefix /23 withdrawals1.17         Prefix /23 path updates0.25
      Prefix /24 total0.51         Prefix /24 announcements0.63         Prefix /24 withdrawals1.23         Prefix /24 path updates0.43
      Prefix /25 total131.48         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates158.86
      Prefix /26 total176.33         Prefix /26 announcements0.00         Prefix /26 withdrawals0.00         Prefix /26 path updates213.04
      Prefix /27 total152.07         Prefix /27 announcements0.00         Prefix /27 withdrawals0.00         Prefix /27 path updates183.74
      Prefix /28 total165.34         Prefix /28 announcements0.00         Prefix /28 withdrawals0.00         Prefix /28 path updates199.77
      Prefix /29 total106.58         Prefix /29 announcements0.00         Prefix /29 withdrawals0.00         Prefix /29 path updates128.77
      Prefix /30 total239.10         Prefix /30 announcements0.00         Prefix /30 withdrawals0.00         Prefix /30 path updates288.89
      Prefix /31 total124.85         Prefix /31 announcements0.00         Prefix /31 withdrawals0.00         Prefix /31 path updates150.85
      Prefix /32 total90.41         Prefix /32 announcements0.00         Prefix /32 withdrawals0.00         Prefix /32 path updates109.23

FIB Update Rate Reports
Updates per hour
(Measurement Period 1 hrs 0 mins)
Data  Announce RateData  Withdraw RateData  Path Chg RateData
Table Updates1619.000   New Entries153.000   Removed Entries126.000   Updated Entries1340.000
    Address Span1351160.000       Address Span620544.000       Address Span87296.000       Address Span643320.000
    Average address span per update834.000       Avg Span4055.000       Avg Span692.000       Avg Span480.000
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 rate9.000         Prefix /16 announcements6.000         Prefix /16 withdrawals0.000         Prefix /16 path updates3.000
      Prefix /17 update rate0.000         Prefix /17 announcements0.000         Prefix /17 withdrawals0.000         Prefix /17 path updates0.000
      Prefix /18 update rate2.000         Prefix /18 announcements1.000         Prefix /18 withdrawals0.000         Prefix /18 path updates1.000
      Prefix /19 update rate6.000         Prefix /19 announcements0.000         Prefix /19 withdrawals2.000         Prefix /19 path updates4.000
      Prefix /20 update rate26.000         Prefix /20 announcements9.000         Prefix /20 withdrawals5.000         Prefix /20 path updates12.000
      Prefix /21 update rate149.000         Prefix /21 announcements75.000         Prefix /21 withdrawals3.000         Prefix /21 path updates71.000
      Prefix /22 update rate62.000         Prefix /22 announcements5.000         Prefix /22 withdrawals14.000         Prefix /22 path updates43.000
      Prefix /23 update rate52.000         Prefix /23 announcements3.000         Prefix /23 withdrawals15.000         Prefix /23 path updates34.000
      Prefix /24 update rate463.000         Prefix /24 announcements54.000         Prefix /24 withdrawals87.000         Prefix /24 path updates322.000
      Prefix /25 update rate269.000         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates269.000
      Prefix /26 update rate253.000         Prefix /26 announcements0.000         Prefix /26 withdrawals0.000         Prefix /26 path updates253.000
      Prefix /27 update rate245.000         Prefix /27 announcements0.000         Prefix /27 withdrawals0.000         Prefix /27 path updates245.000
      Prefix /28 update rate28.000         Prefix /28 announcements0.000         Prefix /28 withdrawals0.000         Prefix /28 path updates28.000
      Prefix /29 update rate10.000         Prefix /29 announcements0.000         Prefix /29 withdrawals0.000         Prefix /29 path updates10.000
      Prefix /30 update rate29.000         Prefix /30 announcements0.000         Prefix /30 withdrawals0.000         Prefix /30 path updates29.000
      Prefix /31 update rate4.000         Prefix /31 announcements0.000         Prefix /31 withdrawals0.000         Prefix /31 path updates4.000
      Prefix /32 update rate12.000         Prefix /32 announcements0.000         Prefix /32 withdrawals0.000         Prefix /32 path updates12.000

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 Changes554   Origin Paths176   NextHop Paths120   Transit Paths217   Paths30   Paths11
 Report
      /16 Tot3         /16 Org0         /16 Nxt0         /16 Trn0         /16 Fst3         /16 Prp0
      /17 Tot0         /17 Org0         /17 Nxt0         /17 Trn0         /17 Fst0         /17 Prp0
      /18 Tot1         /18 Org0         /18 Nxt1         /18 Trn0         /18 Fst0         /18 Prp0
      /19 Tot4         /19 Org0         /19 Nxt1         /19 Trn1         /19 Fst2         /19 Prp0
      /20 Tot12         /20 Org0         /20 Nxt9         /20 Trn1         /20 Fst2         /20 Prp0
      /21 Tot71         /21 Org0         /21 Nxt18         /21 Trn21         /21 Fst32         /21 Prp0
      /22 Tot43         /22 Org0         /22 Nxt15         /22 Trn13         /22 Fst8         /22 Prp7
      /23 Tot34         /23 Org0         /23 Nxt12         /23 Trn6         /23 Fst13         /23 Prp3
      /24 Tot322         /24 Org5         /24 Nxt140         /24 Trn22         /24 Fst141         /24 Prp14
      /25 Tot269         /25 Org66         /25 Nxt20         /25 Trn0         /25 Fst183         /25 Prp0
      /26 Tot253         /26 Org69         /26 Nxt13         /26 Trn0         /26 Fst171         /26 Prp0
      /27 Tot245         /27 Org63         /27 Nxt12         /27 Trn0         /27 Fst170         /27 Prp0
      /28 Tot28         /28 Org3         /28 Nxt8         /28 Trn0         /28 Fst17         /28 Prp0
      /29 Tot10         /29 Org3         /29 Nxt4         /29 Trn0         /29 Fst3         /29 Prp0
      /30 Tot29         /30 Org6         /30 Nxt8         /30 Trn0         /30 Fst15         /30 Prp0
      /31 Tot4         /31 Org3         /31 Nxt0         /31 Trn0         /31 Fst1         /31 Prp0
      /32 Tot12         /32 Org8         /32 Nxt1         /32 Trn0         /32 Fst3         /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 /56       % AS's announcing span of /50.0001
    AS's announcing span of /69       % AS's announcing span of /60.0002
    AS's announcing span of /726       % AS's announcing span of /70.0004
    AS's announcing span of /842       % AS's announcing span of /80.0007
    AS's announcing span of /976       % AS's announcing span of /90.0013
    AS's announcing span of /10108       % AS's announcing span of /100.0018
    AS's announcing span of /11177       % AS's announcing span of /110.0030
    AS's announcing span of /12219       % AS's announcing span of /120.0037
    AS's announcing span of /13445       % AS's announcing span of /130.0074
    AS's announcing span of /14859       % AS's announcing span of /140.0144
    AS's announcing span of /151742       % AS's announcing span of /150.0291
    AS's announcing span of /161799       % AS's announcing span of /160.0301
    AS's announcing span of /172270       % AS's announcing span of /170.0379
    AS's announcing span of /183590       % AS's announcing span of /180.0600
    AS's announcing span of /194730       % AS's announcing span of /190.0790
    AS's announcing span of /206142       % AS's announcing span of /200.1026
    AS's announcing span of /217937       % AS's announcing span of /210.1326
    AS's announcing span of /229550       % AS's announcing span of /220.1596
    AS's announcing span of /236055       % AS's announcing span of /230.1012
    AS's announcing span of /2414036       % AS's announcing span of /240.2346
    AS's announcing span of /2515       % AS's announcing span of /250.0003
    AS's announcing span of /264       % AS's announcing span of /260.0001
    AS's announcing span of /274       % AS's announcing span of /270.0001
    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 Count98149
Average AS Connectivity Degree (196298/60181)3.2618
Average AS Connectivity IN:OUT Degree0.1467
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 Path387205Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path377486Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin268949Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation268963Report (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 Sat Feb 24 03:10:12 2018 (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