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   AS65000 BGP Routing Table Analysis Report












   
  BGP data obtained from AS65000
Report last updated at Tue Mar 19 09:10:13 2019 (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)769705   Change in FIB Size-139   Change (%)-0.018
    All BGP entries (RIB)1504213
    RIB/FIB ratio (1504213/769705)1.9543
      Valid entries1504213
      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)2844475199
    Total address space advertised (prefix length)0.59448464
    Percentage of IPv4 space advertised (2844475199/4294967295)66.228099
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3696
    Average address span (as prefix size)20.1486
Average prefix length22.7116

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 aggregates412788       Specifics as % of FIB entries (412788/769705)53.6294
    Specifics as % of address span (1078178512/2844475199)37.9043    
    Specifics where AS prepended Path matches aggregate181340         AS-P_Path-Match % (181340/412788)43.93
    AS Path matches aggregate190024         AS-Path-Match % (190024/412788)46.0343
    AS Origin matches aggregate309529         AS-Origin-Match % (309529/412788)74.9850
    Root Prefixes356917
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0308969
      Root Prefixes with depth 138207
      Root Prefixes with depth 27787
      Root Prefixes with depth 31496
      Root Prefixes with depth 4350
      Root Prefixes with depth 571
      Root Prefixes with depth 629
      Root Prefixes with depth 78

AS Numbers

The time trend of the number of unique AS numbers advertised within the BGP table. The associated metrics characterise AS's into origin only, transit only, or mixed (origin and transit), and also look at the trends of advertised address space as related to the number of ASes.

AS Reports (plots)Data Sets(txt)  Additional Reports (plots)Data Sets(txt)
Unique ASes63871       ASes visible in only one AS path39580
    Origin only ASes54712         Origin ASs announced via a single AS path39225
    Transit only ASes277       Originating AS ATOM count63594
    Mixed ASes8882         Originating AS ATOM compression0.0826
    Multi-Origin Prefixes1921    
    ASes originating a single prefix23396    
    Average entries per origin AS12.1034         Maximum entries for an origin AS (AS34984)2060
    Average address range span for an origin AS44728.6725         Maximum address range for an origin AS (AS4134)116071424

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 Paths192648       Unique AS prepended Paths204552
AS Paths used in FIB100750       AS Paths using prepending40906
    AS paths associated with a single FIB entry46967       AS Paths using private ASs37
    Average AS path length5.5987         Maximum AS Path length14
    Average address weighted AS path length6.9845         Maximum prepended AS Path length32
    Average entries per AS Path3.9954       Average entries per FIB AS Path7.6398
    AS Paths per origin AS3.0293       FIB AS Paths per origin AS1.5843
      AS PATH ATOM compression0.1309    

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 /812       % Prefix /80.00
    Prefix count /910       % Prefix /90.00
    Prefix count /1036       % Prefix /100.00
    Prefix count /11100       % Prefix /110.01
    Prefix count /12296       % Prefix /120.04
    Prefix count /13571       % Prefix /130.07
    Prefix count /141151       % Prefix /140.15
    Prefix count /151946       % Prefix /150.25
    Prefix count /1613413       % Prefix /161.74
    Prefix count /178156       % Prefix /171.06
    Prefix count /1814120       % Prefix /181.83
    Prefix count /1926345       % Prefix /193.42
    Prefix count /2040992       % Prefix /205.33
    Prefix count /2148312       % Prefix /216.28
    Prefix count /2294985       % Prefix /2212.34
    Prefix count /2379391       % Prefix /2310.31
    Prefix count /24436564       % Prefix /2456.72
    Prefix count /251012       % Prefix /250.13
    Prefix count /26885       % Prefix /260.11
    Prefix count /27980       % Prefix /270.13
    Prefix count /28107       % Prefix /280.01
    Prefix count /2962       % Prefix /290.01
    Prefix count /3055       % Prefix /300.01
    Prefix count /317       % Prefix /310.00
    Prefix count /32197       % Prefix /320.03

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 /812       % Prefix /80.00
    Prefix count /95       % Prefix /90.00
    Prefix count /1036       % Prefix /100.01
    Prefix count /1193       % Prefix /110.03
    Prefix count /12256       % Prefix /120.07
    Prefix count /13467       % Prefix /130.13
    Prefix count /14976       % Prefix /140.27
    Prefix count /151572       % Prefix /150.44
    Prefix count /169950       % Prefix /162.79
    Prefix count /174431       % Prefix /171.24
    Prefix count /187350       % Prefix /182.06
    Prefix count /1914955       % Prefix /194.19
    Prefix count /2018864       % Prefix /205.29
    Prefix count /2121799       % Prefix /216.11
    Prefix count /2251184       % Prefix /2214.34
    Prefix count /2330782       % Prefix /238.62
    Prefix count /24194146       % Prefix /2454.40
    Prefix count /2513       % Prefix /250.00
    Prefix count /264       % Prefix /260.00
    Prefix count /2712       % Prefix /270.00
    Prefix count /282       % Prefix /280.00
    Prefix count /292       % Prefix /290.00
    Prefix count /303       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /323       % 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 18192       % Addresses at AS distance 10.0
    Addresses at AS distance 2116210832       % Addresses at AS distance 23.0
    Addresses at AS distance 31009570209       % Addresses at AS distance 325.7
    Addresses at AS distance 41637549730       % Addresses at AS distance 441.7
    Addresses at AS distance 5910593682       % Addresses at AS distance 523.2
    Addresses at AS distance 6191424778       % Addresses at AS distance 64.9
    Addresses at AS distance 735657024       % Addresses at AS distance 70.9
    Addresses at AS distance 813811392       % Addresses at AS distance 80.4
    Addresses at AS distance 96548608       % Addresses at AS distance 90.2
    Addresses at AS distance 101249056       % Addresses at AS distance 100.0
    Addresses at AS distance 1128672       % Addresses at AS distance 110.0
    Addresses at AS distance 121024       % Addresses at AS distance 120.0
    Addresses at AS distance 13256       % 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 hops8448       % Addresses reachable within 1 AS hops0
    Addresses reachable within 2 AS hops116219280       % Addresses reachable within 2 AS hops2
    Addresses reachable within 3 AS hops1125789489       % Addresses reachable within 3 AS hops28
    Addresses reachable within 4 AS hops2763339219       % Addresses reachable within 4 AS hops70
    Addresses reachable within 5 AS hops3673932901       % Addresses reachable within 5 AS hops93
    Addresses reachable within 6 AS hops3865357679       % Addresses reachable within 6 AS hops98
    Addresses reachable within 7 AS hops3901014703       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops3914826095       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops3921374703       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops3922623759       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops3922652431       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops3922653455       % Addresses reachable within 12 AS hops99
    Addresses reachable within 13 AS hops3922653711       % 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 hops262       % ASes reachable at 2 AS hops0
    ASes reachable at 3 AS hops3125       % ASes reachable at 3 AS hops4
    ASes reachable at 4 AS hops19543       % ASes reachable at 4 AS hops30
    ASes reachable at 5 AS hops29166       % ASes reachable at 5 AS hops45
    ASes reachable at 6 AS hops9808       % ASes reachable at 6 AS hops15
    ASes reachable at 7 AS hops1397       % ASes reachable at 7 AS hops2
    ASes reachable at 8 AS hops363       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops160       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops40       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops3       % ASes reachable at 11 AS hops0
    ASes reachable at 12 AS hops1       % 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 hops265       Cumulative % ASes by AS hops 20.4
    ASes reachable by 3 AS hops3390       Cumulative % ASes by AS hops 35.3
    ASes reachable by 4 AS hops22933       Cumulative % ASes by AS hops 435.9
    ASes reachable by 5 AS hops52099       Cumulative % ASes by AS hops 581.6
    ASes reachable by 6 AS hops61907       Cumulative % ASes by AS hops 696.9
    ASes reachable by 7 AS hops63304       Cumulative % ASes by AS hops 799.1
    ASes reachable by 8 AS hops63667       Cumulative % ASes by AS hops 899.7
    ASes reachable by 9 AS hops63827       Cumulative % ASes by AS hops 999.9
    ASes reachable by 10 AS hops63867       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops63870       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops63871       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops63871       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 Updates3760   New Entries169   Removed Entries318   Updated Entries3273
     Report     Report     Report 
    Address Span3159088       Address Span393728       Address Span126976       Address Span2638384
    Average address span per update840       Avg Span2329       Avg Span399       Avg Span806
    Average prefix size updated24.32       Average prefix size23.03       Average prefix size23.76       Average prefix size24.44
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /14 total1         Prefix /14 announcements0         Prefix /14 withdrawals0         Prefix /14 path updates1
      Prefix /15 total0         Prefix /15 announcements0         Prefix /15 withdrawals0         Prefix /15 path updates0
      Prefix /16 total3         Prefix /16 announcements0         Prefix /16 withdrawals0         Prefix /16 path updates3
      Prefix /17 total16         Prefix /17 announcements8         Prefix /17 withdrawals0         Prefix /17 path updates8
      Prefix /18 total15         Prefix /18 announcements2         Prefix /18 withdrawals0         Prefix /18 path updates13
      Prefix /19 total29         Prefix /19 announcements1         Prefix /19 withdrawals1         Prefix /19 path updates27
      Prefix /20 total129         Prefix /20 announcements7         Prefix /20 withdrawals5         Prefix /20 path updates117
      Prefix /21 total126         Prefix /21 announcements2         Prefix /21 withdrawals3         Prefix /21 path updates121
      Prefix /22 total272         Prefix /22 announcements20         Prefix /22 withdrawals10         Prefix /22 path updates242
      Prefix /23 total190         Prefix /23 announcements17         Prefix /23 withdrawals21         Prefix /23 path updates152
      Prefix /24 total1788         Prefix /24 announcements112         Prefix /24 withdrawals278         Prefix /24 path updates1398
      Prefix /25 total287         Prefix /25 announcements0         Prefix /25 withdrawals0         Prefix /25 path updates287
      Prefix /26 total363         Prefix /26 announcements0         Prefix /26 withdrawals0         Prefix /26 path updates363
      Prefix /27 total363         Prefix /27 announcements0         Prefix /27 withdrawals0         Prefix /27 path updates363
      Prefix /28 total48         Prefix /28 announcements0         Prefix /28 withdrawals0         Prefix /28 path updates48
      Prefix /29 total25         Prefix /29 announcements0         Prefix /29 withdrawals0         Prefix /29 path updates25
      Prefix /30 total31         Prefix /30 announcements0         Prefix /30 withdrawals0         Prefix /30 path updates31
      Prefix /31 total2         Prefix /31 announcements0         Prefix /31 withdrawals0         Prefix /31 path updates2
      Prefix /32 total72         Prefix /32 announcements0         Prefix /32 withdrawals0         Prefix /32 path updates72
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 total0.18         Prefix /14 announcements0.00         Prefix /14 withdrawals0.00         Prefix /14 path updates0.20
      Prefix /15 total0.00         Prefix /15 announcements0.00         Prefix /15 withdrawals0.00         Prefix /15 path updates0.00
      Prefix /16 total0.05         Prefix /16 announcements0.00         Prefix /16 withdrawals0.00         Prefix /16 path updates0.05
      Prefix /17 total0.40         Prefix /17 announcements4.47         Prefix /17 withdrawals0.00         Prefix /17 path updates0.23
      Prefix /18 total0.22         Prefix /18 announcements0.65         Prefix /18 withdrawals0.00         Prefix /18 path updates0.22
      Prefix /19 total0.23         Prefix /19 announcements0.17         Prefix /19 withdrawals0.09         Prefix /19 path updates0.24
      Prefix /20 total0.64         Prefix /20 announcements0.78         Prefix /20 withdrawals0.30         Prefix /20 path updates0.67
      Prefix /21 total0.53         Prefix /21 announcements0.19         Prefix /21 withdrawals0.15         Prefix /21 path updates0.59
      Prefix /22 total0.59         Prefix /22 announcements0.96         Prefix /22 withdrawals0.25         Prefix /22 path updates0.60
      Prefix /23 total0.49         Prefix /23 announcements0.98         Prefix /23 withdrawals0.64         Prefix /23 path updates0.45
      Prefix /24 total0.84         Prefix /24 announcements1.17         Prefix /24 withdrawals1.54         Prefix /24 path updates0.75
      Prefix /25 total58.05         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates66.69
      Prefix /26 total83.97         Prefix /26 announcements0.00         Prefix /26 withdrawals0.00         Prefix /26 path updates96.46
      Prefix /27 total75.83         Prefix /27 announcements0.00         Prefix /27 withdrawals0.00         Prefix /27 path updates87.11
      Prefix /28 total91.83         Prefix /28 announcements0.00         Prefix /28 withdrawals0.00         Prefix /28 path updates105.50
      Prefix /29 total82.54         Prefix /29 announcements0.00         Prefix /29 withdrawals0.00         Prefix /29 path updates94.83
      Prefix /30 total115.38         Prefix /30 announcements0.00         Prefix /30 withdrawals0.00         Prefix /30 path updates132.55
      Prefix /31 total58.49         Prefix /31 announcements0.00         Prefix /31 withdrawals0.00         Prefix /31 path updates67.19
      Prefix /32 total74.82         Prefix /32 announcements0.00         Prefix /32 withdrawals0.00         Prefix /32 path updates85.95

FIB Update Rate Reports
Updates per hour
(Measurement Period 1 hrs 0 mins)
Data  Announce RateData  Withdraw RateData  Path Chg RateData
Table Updates3760.000   New Entries169.000   Removed Entries318.000   Updated Entries3273.000
    Address Span3159088.000       Address Span393728.000       Address Span126976.000       Address Span2638384.000
    Average address span per update840.000       Avg Span2329.000       Avg Span399.000       Avg Span806.000
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 rate1.000         Prefix /14 announcements0.000         Prefix /14 withdrawals0.000         Prefix /14 path updates1.000
      Prefix /15 update rate0.000         Prefix /15 announcements0.000         Prefix /15 withdrawals0.000         Prefix /15 path updates0.000
      Prefix /16 update rate3.000         Prefix /16 announcements0.000         Prefix /16 withdrawals0.000         Prefix /16 path updates3.000
      Prefix /17 update rate16.000         Prefix /17 announcements8.000         Prefix /17 withdrawals0.000         Prefix /17 path updates8.000
      Prefix /18 update rate15.000         Prefix /18 announcements2.000         Prefix /18 withdrawals0.000         Prefix /18 path updates13.000
      Prefix /19 update rate29.000         Prefix /19 announcements1.000         Prefix /19 withdrawals1.000         Prefix /19 path updates27.000
      Prefix /20 update rate129.000         Prefix /20 announcements7.000         Prefix /20 withdrawals5.000         Prefix /20 path updates117.000
      Prefix /21 update rate126.000         Prefix /21 announcements2.000         Prefix /21 withdrawals3.000         Prefix /21 path updates121.000
      Prefix /22 update rate272.000         Prefix /22 announcements20.000         Prefix /22 withdrawals10.000         Prefix /22 path updates242.000
      Prefix /23 update rate190.000         Prefix /23 announcements17.000         Prefix /23 withdrawals21.000         Prefix /23 path updates152.000
      Prefix /24 update rate1788.000         Prefix /24 announcements112.000         Prefix /24 withdrawals278.000         Prefix /24 path updates1398.000
      Prefix /25 update rate287.000         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates287.000
      Prefix /26 update rate363.000         Prefix /26 announcements0.000         Prefix /26 withdrawals0.000         Prefix /26 path updates363.000
      Prefix /27 update rate363.000         Prefix /27 announcements0.000         Prefix /27 withdrawals0.000         Prefix /27 path updates363.000
      Prefix /28 update rate48.000         Prefix /28 announcements0.000         Prefix /28 withdrawals0.000         Prefix /28 path updates48.000
      Prefix /29 update rate25.000         Prefix /29 announcements0.000         Prefix /29 withdrawals0.000         Prefix /29 path updates25.000
      Prefix /30 update rate31.000         Prefix /30 announcements0.000         Prefix /30 withdrawals0.000         Prefix /30 path updates31.000
      Prefix /31 update rate2.000         Prefix /31 announcements0.000         Prefix /31 withdrawals0.000         Prefix /31 path updates2.000
      Prefix /32 update rate72.000         Prefix /32 announcements0.000         Prefix /32 withdrawals0.000         Prefix /32 path updates72.000

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 Changes973   Origin Paths231   NextHop Paths217   Transit Paths387   Paths116   Paths22
 Report
      /14 Tot1         /14 Org0         /14 Nxt0         /14 Trn1         /14 Fst0         /14 Prp0
      /15 Tot0         /15 Org0         /15 Nxt0         /15 Trn0         /15 Fst0         /15 Prp0
      /16 Tot3         /16 Org0         /16 Nxt1         /16 Trn1         /16 Fst1         /16 Prp0
      /17 Tot8         /17 Org0         /17 Nxt3         /17 Trn4         /17 Fst0         /17 Prp1
      /18 Tot13         /18 Org0         /18 Nxt2         /18 Trn10         /18 Fst1         /18 Prp0
      /19 Tot27         /19 Org4         /19 Nxt9         /19 Trn10         /19 Fst4         /19 Prp0
      /20 Tot117         /20 Org3         /20 Nxt62         /20 Trn32         /20 Fst11         /20 Prp9
      /21 Tot121         /21 Org1         /21 Nxt32         /21 Trn60         /21 Fst27         /21 Prp1
      /22 Tot242         /22 Org1         /22 Nxt94         /22 Trn93         /22 Fst43         /22 Prp11
      /23 Tot152         /23 Org3         /23 Nxt43         /23 Trn51         /23 Fst52         /23 Prp3
      /24 Tot1398         /24 Org23         /24 Nxt720         /24 Trn346         /24 Fst287         /24 Prp22
      /25 Tot287         /25 Org65         /25 Nxt21         /25 Trn0         /25 Fst201         /25 Prp0
      /26 Tot363         /26 Org78         /26 Nxt60         /26 Trn0         /26 Fst225         /26 Prp0
      /27 Tot363         /27 Org97         /27 Nxt34         /27 Trn0         /27 Fst232         /27 Prp0
      /28 Tot48         /28 Org8         /28 Nxt17         /28 Trn0         /28 Fst23         /28 Prp0
      /29 Tot25         /29 Org7         /29 Nxt7         /29 Trn0         /29 Fst11         /29 Prp0
      /30 Tot31         /30 Org7         /30 Nxt8         /30 Trn0         /30 Fst16         /30 Prp0
      /31 Tot2         /31 Org2         /31 Nxt0         /31 Trn0         /31 Fst0         /31 Prp0
      /32 Tot72         /32 Org8         /32 Nxt1         /32 Trn0         /32 Fst63         /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 /68       % AS's announcing span of /60.0001
    AS's announcing span of /727       % AS's announcing span of /70.0004
    AS's announcing span of /838       % AS's announcing span of /80.0006
    AS's announcing span of /985       % AS's announcing span of /90.0013
    AS's announcing span of /10109       % AS's announcing span of /100.0017
    AS's announcing span of /11174       % AS's announcing span of /110.0027
    AS's announcing span of /12224       % AS's announcing span of /120.0035
    AS's announcing span of /13454       % AS's announcing span of /130.0071
    AS's announcing span of /14845       % AS's announcing span of /140.0133
    AS's announcing span of /151749       % AS's announcing span of /150.0275
    AS's announcing span of /161854       % AS's announcing span of /160.0292
    AS's announcing span of /172300       % AS's announcing span of /170.0362
    AS's announcing span of /183681       % AS's announcing span of /180.0579
    AS's announcing span of /194863       % AS's announcing span of /190.0766
    AS's announcing span of /206562       % AS's announcing span of /200.1033
    AS's announcing span of /218841       % AS's announcing span of /210.1392
    AS's announcing span of /2210660       % AS's announcing span of /220.1678
    AS's announcing span of /236399       % AS's announcing span of /230.1007
    AS's announcing span of /2414612       % AS's announcing span of /240.2300
    AS's announcing span of /2521       % AS's announcing span of /250.0003
    AS's announcing span of /267       % AS's announcing span of /260.0001
    AS's announcing span of /275       % 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 Count105319
Average AS Connectivity Degree (210638/63871)3.2979
Average AS Connectivity IN:OUT Degree0.1538
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 Path418891Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path410155Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin290301Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation290337Report (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 Mar 19 09:10:13 2019 (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