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   AS65000 BGP Routing Table Analysis Report












   
  BGP data obtained from AS65000
Report last updated at Sat Oct 23 20:10:11 2021 (UTC+1000).
 

Active BGP entries (FIB)


Table Size Metrics

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

FIB / RIB Table Reports (plots)Data Sets(txt)
Active BGP entries (FIB)899646   Change in FIB Size-154   Change (%)-0.017
    All BGP entries (RIB)2653355
    RIB/FIB ratio (2653355/899646)2.9493
      Valid entries2653355
      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)3072740608
    Total address space advertised (prefix length)0.48312116
    Percentage of IPv4 space advertised (3072740608/4294967295)71.542817
    Total address space advertised - corrected to 19 /8s(data)
Average address span 3415
    Average address span (as prefix size)20.2623
Average prefix length22.8004

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 aggregates480234       Specifics as % of FIB entries (480234/899646)53.3803
    Specifics as % of address span (1117499668/3072740608)36.3682    
    Specifics where AS prepended Path matches aggregate220791         AS-P_Path-Match % (220791/480234)45.98
    AS Path matches aggregate232220         AS-Path-Match % (232220/480234)48.3556
    AS Origin matches aggregate365597         AS-Origin-Match % (365597/480234)76.1289
    Root Prefixes419412
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0364845
      Root Prefixes with depth 143683
      Root Prefixes with depth 28807
      Root Prefixes with depth 31518
      Root Prefixes with depth 4415
      Root Prefixes with depth 5106
      Root Prefixes with depth 630
      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 ASes72374       ASes visible in only one AS path44626
    Origin only ASes61849         Origin ASs announced via a single AS path44155
    Transit only ASes370       Originating AS ATOM count72004
    Mixed ASes10155         Originating AS ATOM compression0.0800
    Multi-Origin Prefixes2264    
    ASes originating a single prefix25312    
    Average entries per origin AS12.4944         Maximum entries for an origin AS (AS12389)2925
    Average address range span for an origin AS42674.5821         Maximum address range for an origin AS (AS749)211326208

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 Paths229311       Unique AS prepended Paths245438
AS Paths used in FIB114084       AS Paths using prepending60991
    AS paths associated with a single FIB entry52510       AS Paths using private ASs64
    Average AS path length5.2987       Number of Prefixes with Selected AS Prepending Paths107776
      Maximum AS Path length17       Number of Prefixes with AS Prepending Paths107776
    Average address weighted AS path length6.6255         Maximum prepended AS Path length55
    Average entries per AS Path3.9233       Average entries per FIB AS Path7.8858
    AS Paths per origin AS3.1847       FIB AS Paths per origin AS1.5844
      AS PATH ATOM compression0.1268    

Prefix Length Distributions

The time trend of the distribution of BGP Table entries by address prefix length.

Prefix Length Reports (plots)Data Sets(txt)  Percentage Reports (plots)Data Sets(txt)
Prefix Count(data)   % Prefix distribution(data)
    Prefix count /816       % Prefix /80.00
    Prefix count /913       % Prefix /90.00
    Prefix count /1041       % Prefix /100.00
    Prefix count /11101       % Prefix /110.01
    Prefix count /12306       % Prefix /120.03
    Prefix count /13596       % Prefix /130.07
    Prefix count /141215       % Prefix /140.14
    Prefix count /152097       % Prefix /150.23
    Prefix count /1613646       % Prefix /161.52
    Prefix count /178414       % Prefix /170.94
    Prefix count /1814233       % Prefix /181.58
    Prefix count /1925849       % Prefix /192.87
    Prefix count /2044064       % Prefix /204.90
    Prefix count /2153255       % Prefix /215.92
    Prefix count /22109701       % Prefix /2212.19
    Prefix count /2398938       % Prefix /2311.00
    Prefix count /24525701       % Prefix /2458.43
    Prefix count /251458       % Prefix /250.16
    Prefix count /260       % Prefix /260.00
    Prefix count /270       % Prefix /270.00
    Prefix count /281       % Prefix /280.00
    Prefix count /290       % Prefix /290.00
    Prefix count /301       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /320       % Prefix /320.00

Root Prefix Length Distributions

The time trend of the distribution of Root BGP Table entries by address prefix length.

Root Prefix Length Reports (plots)Data Sets(txt)  Percentage Reports (plots)Data Sets(txt)
Root Prefix Count(data)   % Prefix distribution(data)
    Prefix count /816       % Prefix /80.00
    Prefix count /99       % Prefix /90.00
    Prefix count /1041       % Prefix /100.01
    Prefix count /1195       % Prefix /110.02
    Prefix count /12271       % Prefix /120.06
    Prefix count /13495       % Prefix /130.12
    Prefix count /141035       % Prefix /140.25
    Prefix count /151649       % Prefix /150.39
    Prefix count /1610341       % Prefix /162.47
    Prefix count /174444       % Prefix /171.06
    Prefix count /186851       % Prefix /181.63
    Prefix count /1915188       % Prefix /193.62
    Prefix count /2019515       % Prefix /204.65
    Prefix count /2122285       % Prefix /215.31
    Prefix count /2258236       % Prefix /2213.89
    Prefix count /2338511       % Prefix /239.18
    Prefix count /24240416       % Prefix /2457.32
    Prefix count /2514       % Prefix /250.00
    Prefix count /260       % Prefix /260.00
    Prefix count /270       % Prefix /270.00
    Prefix count /280       % Prefix /280.00
    Prefix count /290       % Prefix /290.00
    Prefix count /300       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /320       % Prefix /320.00

AS Diameter Reports

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

AS Diameter Reports (plots)Data Sets(txt)  Percentage Reports (plots)Data Sets(txt)
Addresses by AS distance(data)   Address percentage by AS distance(data)
    Addresses at AS distance 0256       % Addresses at AS distance 00.0
    Addresses at AS distance 176288       % Addresses at AS distance 10.0
    Addresses at AS distance 2216607632       % Addresses at AS distance 25.2
    Addresses at AS distance 31306812292       % Addresses at AS distance 331.2
    Addresses at AS distance 41765735168       % Addresses at AS distance 442.1
    Addresses at AS distance 5763688448       % Addresses at AS distance 518.2
    Addresses at AS distance 684938624       % Addresses at AS distance 62.0
    Addresses at AS distance 721159936       % Addresses at AS distance 70.5
    Addresses at AS distance 812405376       % Addresses at AS distance 80.3
    Addresses at AS distance 912055552       % Addresses at AS distance 90.3
    Addresses at AS distance 106724864       % Addresses at AS distance 100.2
    Addresses at AS distance 1130464       % Addresses at AS distance 110.0
    Addresses at AS distance 125376       % Addresses at AS distance 120.0
    Addresses at AS distance 130       % Addresses at AS distance 130.0
    Addresses at AS distance 140       % Addresses at AS distance 140.0
    Addresses at AS distance 150       % Addresses at AS distance 150.0
    Addresses at AS distance 160       % Addresses at AS distance 160.0
     
Cumulative Address by AS distance(data)   Cumulative % Address by AS distance(data)
    Addresses reachable within 0 AS hops256       % Addresses reachable within 0 AS hops0
    Addresses reachable within 1 AS hops76544       % Addresses reachable within 1 AS hops0
    Addresses reachable within 2 AS hops216684176       % Addresses reachable within 2 AS hops5
    Addresses reachable within 3 AS hops1523496468       % Addresses reachable within 3 AS hops36
    Addresses reachable within 4 AS hops3289231636       % Addresses reachable within 4 AS hops78
    Addresses reachable within 5 AS hops4052920084       % Addresses reachable within 5 AS hops96
    Addresses reachable within 6 AS hops4137858708       % Addresses reachable within 6 AS hops98
    Addresses reachable within 7 AS hops4159018644       % Addresses reachable within 7 AS hops99
    Addresses reachable within 8 AS hops4171424020       % Addresses reachable within 8 AS hops99
    Addresses reachable within 9 AS hops4183479572       % Addresses reachable within 9 AS hops99
    Addresses reachable within 10 AS hops4190204436       % Addresses reachable within 10 AS hops99
    Addresses reachable within 11 AS hops4190234900       % Addresses reachable within 11 AS hops99
    Addresses reachable within 12 AS hops4190240276       % Addresses reachable within 12 AS hops100
    Addresses reachable within 13 AS hops4190240276       % Addresses reachable within 13 AS hops100
    Addresses reachable within 14 AS hops4190240276       % Addresses reachable within 14 AS hops100
    Addresses reachable within 15 AS hops4190240276       % Addresses reachable within 15 AS hops100
    Addresses reachable within 16 AS hops4190240276       % Addresses reachable within 16 AS hops100
     
ASes by AS distance(data)   % ASes by AS hops(data)
    ASes reachable at 0 AS hops1       % ASes reachable at 0 AS hops0
    ASes reachable at 1 AS hops3       % ASes reachable at 1 AS hops0
    ASes reachable at 2 AS hops169       % ASes reachable at 2 AS hops0
    ASes reachable at 3 AS hops5969       % ASes reachable at 3 AS hops8
    ASes reachable at 4 AS hops29560       % ASes reachable at 4 AS hops40
    ASes reachable at 5 AS hops29167       % ASes reachable at 5 AS hops40
    ASes reachable at 6 AS hops5986       % ASes reachable at 6 AS hops8
    ASes reachable at 7 AS hops1059       % ASes reachable at 7 AS hops1
    ASes reachable at 8 AS hops244       % ASes reachable at 8 AS hops0
    ASes reachable at 9 AS hops118       % ASes reachable at 9 AS hops0
    ASes reachable at 10 AS hops91       % ASes reachable at 10 AS hops0
    ASes reachable at 11 AS hops7       % 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
    ASes reachable at 15 AS hops0       % ASes reachable at 15 AS hops0
    ASes reachable at 16 AS hops0       % ASes reachable at 16 AS hops0
     
Cumulative ASes by AS hops(data)   Cumulative % ASes by AS hops(data)
    ASes reachable by 0 AS hops1       Cumulative % ASes by AS hops 00.0
    ASes reachable by 1 AS hops4       Cumulative % ASes by AS hops 10.0
    ASes reachable by 2 AS hops173       Cumulative % ASes by AS hops 20.2
    ASes reachable by 3 AS hops6142       Cumulative % ASes by AS hops 38.5
    ASes reachable by 4 AS hops35702       Cumulative % ASes by AS hops 449.3
    ASes reachable by 5 AS hops64869       Cumulative % ASes by AS hops 589.6
    ASes reachable by 6 AS hops70855       Cumulative % ASes by AS hops 697.9
    ASes reachable by 7 AS hops71914       Cumulative % ASes by AS hops 799.4
    ASes reachable by 8 AS hops72158       Cumulative % ASes by AS hops 899.7
    ASes reachable by 9 AS hops72276       Cumulative % ASes by AS hops 999.9
    ASes reachable by 10 AS hops72367       Cumulative % ASes by AS hops 10100.0
    ASes reachable by 11 AS hops72374       Cumulative % ASes by AS hops 11100.0
    ASes reachable by 12 AS hops72374       Cumulative % ASes by AS hops 12100.0
    ASes reachable by 13 AS hops72374       Cumulative % ASes by AS hops 13100.0
    ASes reachable by 14 AS hops72374       Cumulative % ASes by AS hops 14100.0
    ASes reachable by 15 AS hops72374       Cumulative % ASes by AS hops 15100.0
    ASes reachable by 16 AS hops72374       Cumulative % ASes by AS hops 16100.0

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 Updates1942   New Entries125   Removed Entries287   Updated Entries1530
     Report     Report     Report 
    Address Span2329984       Address Span65024       Address Span567552       Address Span1697408
    Average address span per update1199       Avg Span520       Avg Span1977       Avg Span1109
    Average prefix size updated23.51       Average prefix size23.62       Average prefix size22.90       Average prefix size23.62
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
      Prefix /15 total1         Prefix /15 announcements0         Prefix /15 withdrawals0         Prefix /15 path updates1
      Prefix /16 total3         Prefix /16 announcements0         Prefix /16 withdrawals0         Prefix /16 path updates3
      Prefix /17 total7         Prefix /17 announcements0         Prefix /17 withdrawals2         Prefix /17 path updates5
      Prefix /18 total41         Prefix /18 announcements1         Prefix /18 withdrawals22         Prefix /18 path updates18
      Prefix /19 total20         Prefix /19 announcements0         Prefix /19 withdrawals0         Prefix /19 path updates20
      Prefix /20 total44         Prefix /20 announcements1         Prefix /20 withdrawals3         Prefix /20 path updates40
      Prefix /21 total84         Prefix /21 announcements1         Prefix /21 withdrawals15         Prefix /21 path updates68
      Prefix /22 total207         Prefix /22 announcements9         Prefix /22 withdrawals28         Prefix /22 path updates170
      Prefix /23 total172         Prefix /23 announcements17         Prefix /23 withdrawals56         Prefix /23 path updates99
      Prefix /24 total864         Prefix /24 announcements96         Prefix /24 withdrawals161         Prefix /24 path updates607
      Prefix /25 total499         Prefix /25 announcements0         Prefix /25 withdrawals0         Prefix /25 path updates499
      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 total0.22         Prefix /15 announcements0.00         Prefix /15 withdrawals0.00         Prefix /15 path updates0.28
      Prefix /16 total0.10         Prefix /16 announcements0.00         Prefix /16 withdrawals0.00         Prefix /16 path updates0.13
      Prefix /17 total0.39         Prefix /17 announcements0.00         Prefix /17 withdrawals0.75         Prefix /17 path updates0.35
      Prefix /18 total1.33         Prefix /18 announcements0.51         Prefix /18 withdrawals4.85         Prefix /18 path updates0.74
      Prefix /19 total0.36         Prefix /19 announcements0.00         Prefix /19 withdrawals0.00         Prefix /19 path updates0.45
      Prefix /20 total0.46         Prefix /20 announcements0.16         Prefix /20 withdrawals0.21         Prefix /20 path updates0.53
      Prefix /21 total0.73         Prefix /21 announcements0.14         Prefix /21 withdrawals0.88         Prefix /21 path updates0.75
      Prefix /22 total0.87         Prefix /22 announcements0.59         Prefix /22 withdrawals0.80         Prefix /22 path updates0.91
      Prefix /23 total0.81         Prefix /23 announcements1.24         Prefix /23 withdrawals1.77         Prefix /23 path updates0.59
      Prefix /24 total0.76         Prefix /24 announcements1.31         Prefix /24 withdrawals0.96         Prefix /24 path updates0.68
      Prefix /25 total158.55         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates201.24
      Prefix /26 total0.00         Prefix /26 announcements100.00         Prefix /26 withdrawals100.00         Prefix /26 path updates100.00
      Prefix /27 total0.00         Prefix /27 announcements100.00         Prefix /27 withdrawals100.00         Prefix /27 path updates100.00
      Prefix /28 total0.00         Prefix /28 announcements0.00         Prefix /28 withdrawals0.00         Prefix /28 path updates0.00
      Prefix /29 total0.00         Prefix /29 announcements100.00         Prefix /29 withdrawals100.00         Prefix /29 path updates100.00
      Prefix /30 total0.00         Prefix /30 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 announcements100.00         Prefix /32 withdrawals100.00         Prefix /32 path updates100.00

FIB Update Rate Reports
Updates per hour
(Measurement Period 1 hrs 0 mins)
Data  Announce RateData  Withdraw RateData  Path Chg RateData
Table Updates1942.000   New Entries125.000   Removed Entries287.000   Updated Entries1530.000
    Address Span2329984.000       Address Span65024.000       Address Span567552.000       Address Span1697408.000
    Average address span per update1199.000       Avg Span520.000       Avg Span1977.000       Avg Span1109.000
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 rate1.000         Prefix /15 announcements0.000         Prefix /15 withdrawals0.000         Prefix /15 path updates1.000
      Prefix /16 update rate3.000         Prefix /16 announcements0.000         Prefix /16 withdrawals0.000         Prefix /16 path updates3.000
      Prefix /17 update rate7.000         Prefix /17 announcements0.000         Prefix /17 withdrawals2.000         Prefix /17 path updates5.000
      Prefix /18 update rate41.000         Prefix /18 announcements1.000         Prefix /18 withdrawals22.000         Prefix /18 path updates18.000
      Prefix /19 update rate20.000         Prefix /19 announcements0.000         Prefix /19 withdrawals0.000         Prefix /19 path updates20.000
      Prefix /20 update rate44.000         Prefix /20 announcements1.000         Prefix /20 withdrawals3.000         Prefix /20 path updates40.000
      Prefix /21 update rate84.000         Prefix /21 announcements1.000         Prefix /21 withdrawals15.000         Prefix /21 path updates68.000
      Prefix /22 update rate207.000         Prefix /22 announcements9.000         Prefix /22 withdrawals28.000         Prefix /22 path updates170.000
      Prefix /23 update rate172.000         Prefix /23 announcements17.000         Prefix /23 withdrawals56.000         Prefix /23 path updates99.000
      Prefix /24 update rate864.000         Prefix /24 announcements96.000         Prefix /24 withdrawals161.000         Prefix /24 path updates607.000
      Prefix /25 update rate499.000         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates499.000
      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 Changes480   Origin Paths58   NextHop Paths149   Transit Paths152   Paths90   Paths31
 Report
      /15 Tot1         /15 Org0         /15 Nxt1         /15 Trn0         /15 Fst0         /15 Prp0
      /16 Tot3         /16 Org0         /16 Nxt2         /16 Trn1         /16 Fst0         /16 Prp0
      /17 Tot5         /17 Org0         /17 Nxt2         /17 Trn0         /17 Fst3         /17 Prp0
      /18 Tot18         /18 Org0         /18 Nxt4         /18 Trn13         /18 Fst1         /18 Prp0
      /19 Tot20         /19 Org0         /19 Nxt14         /19 Trn6         /19 Fst0         /19 Prp0
      /20 Tot40         /20 Org0         /20 Nxt7         /20 Trn4         /20 Fst29         /20 Prp0
      /21 Tot68         /21 Org0         /21 Nxt11         /21 Trn10         /21 Fst47         /21 Prp0
      /22 Tot170         /22 Org0         /22 Nxt61         /22 Trn25         /22 Fst75         /22 Prp9
      /23 Tot99         /23 Org0         /23 Nxt40         /23 Trn29         /23 Fst21         /23 Prp9
      /24 Tot607         /24 Org1         /24 Nxt213         /24 Trn135         /24 Fst112         /24 Prp146
      /25 Tot499         /25 Org64         /25 Nxt22         /25 Trn0         /25 Fst413         /25 Prp0
      /26 Tot0         /26 Org0         /26 Nxt0         /26 Trn0         /26 Fst0         /26 Prp0
      /27 Tot0         /27 Org0         /27 Nxt0         /27 Trn0         /27 Fst0         /27 Prp0
      /28 Tot0         /28 Org0         /28 Nxt0         /28 Trn0         /28 Fst0         /28 Prp0
      /29 Tot0         /29 Org0         /29 Nxt0         /29 Trn0         /29 Fst0         /29 Prp0
      /30 Tot0         /30 Org0         /30 Nxt0         /30 Trn0         /30 Fst0         /30 Prp0
      /31 Tot0         /31 Org0         /31 Nxt0         /31 Trn0         /31 Fst0         /31 Prp0
      /32 Tot0         /32 Org0         /32 Nxt0         /32 Trn0         /32 Fst0         /32 Prp0

AS Announcement Reports

The time trend of total span of address space advertised by ASes, using truncated prefix length as the span metric.

AS Announcements ReportsData Sets(txt)  Percentage ReportsData
Originating Addresses AS Count(data)   Originating Addresses % AS Count(data)
    AS's announcing span of /41       % AS's announcing span of /40.0000
    AS's announcing span of /56       % AS's announcing span of /50.0001
    AS's announcing span of /611       % AS's announcing span of /60.0002
    AS's announcing span of /723       % AS's announcing span of /70.0003
    AS's announcing span of /844       % AS's announcing span of /80.0006
    AS's announcing span of /976       % AS's announcing span of /90.0011
    AS's announcing span of /10107       % AS's announcing span of /100.0015
    AS's announcing span of /11178       % AS's announcing span of /110.0025
    AS's announcing span of /12241       % AS's announcing span of /120.0034
    AS's announcing span of /13436       % AS's announcing span of /130.0061
    AS's announcing span of /14837       % AS's announcing span of /140.0116
    AS's announcing span of /151725       % AS's announcing span of /150.0240
    AS's announcing span of /161853       % AS's announcing span of /160.0258
    AS's announcing span of /172440       % AS's announcing span of /170.0339
    AS's announcing span of /183808       % AS's announcing span of /180.0529
    AS's announcing span of /195100       % AS's announcing span of /190.0709
    AS's announcing span of /207563       % AS's announcing span of /200.1052
    AS's announcing span of /2110358       % AS's announcing span of /210.1440
    AS's announcing span of /2212304       % AS's announcing span of /220.1711
    AS's announcing span of /237949       % AS's announcing span of /230.1105
    AS's announcing span of /2416843       % AS's announcing span of /240.2342
    AS's announcing span of /2517       % 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 Count120663
Average AS Connectivity Degree (241326/72374)3.3344
Average AS Connectivity IN:OUT Degree0.1594
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 Path485076Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Path473229Report (sort by %reduction)Report (sort by reduction)BGP Table
    Aggregation using AS Origin337161Report (sort by %reduction)Report (sort by reduction)BGP Table
    Maximal Aggregation337179Report (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 Oct 23 20:10:11 2021 (UTC+1000).

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

BGP table analyser written and maintained by Geoff Huston.


Footnote