AS10533 BGP Table Data

   
  BGP data obtained from AS10533.
Report last updated at Sun Jul 28 10:00:03 2013 (Eastern Time).
 
Other BGP Metrics (Graphs & Data)
Refs to Related Work (Papers & Links)

Prefix /28 total


1 Year Report


14 Day Report


2 Day Report


The reports are organized in the table in two parts:


Table Size Metrics

The trend of the size of the BGP Forwarding Table (FIB) and the underlying BGP Routing Table (RIB). The RIB/FIB ration 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)412
    All BGP entries (RIB)838
    RIB/FIB ratio (838/412)2.0340
      Valid entries838
      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)2409841
    Percentage of IPv4 space advertised (2409841/4294967295)0.056108
    Total address space advertised - corrected to 19 /8s321176945 2409841
Average address span 5849
    Average address span (as prefix size)19.4860
Average prefix length22.7427

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 aggregates75       Specifics as % of FIB entries (75/412)18.2039
    Specifics as % of address span (287488/2409841)11.9297    
    Specifics where AS prepended Path matches aggregate71         AS-P_Path-Match % (71/75)94.67
    AS Path matches aggregate71         AS-Path-Match % (71/75)94.6667
    AS Origin matches aggregate71         AS-Origin-Match % (71/75)94.6667
    Root Prefixes337
Root Prefix Tree Depth(data)
      Root Prefixes with depth 0319
      Root Prefixes with depth 116
      Root Prefixes with depth 22

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 ASes94       ASes visible in only one AS path78
    Origin only ASes77         Origin ASs announced via a single AS path77
    Transit only ASes1    
    Mixed ASes15    
    Multi-Origin Prefixes6    
    ASes originating a single prefix39    
    Average entries per origin AS4.4783         Maximum entries for an origin AS (AS10533)93
    Average address range span for an origin AS26193.9239         Maximum address range for an origin AS (AS239)264704

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 Paths98       Unique AS prepended Paths100
AS Paths used in FIB93       AS Paths using prepending15
    AS paths associated with a single FIB entry39       AS Paths using private ASs1
    Average AS path length2.9660         Maximum AS Path length5
    Average address weighted AS path length3.8380         Maximum prepended AS Path length9
    Average entries per AS Path4.2041    
    AS Paths per origin AS1.0652    

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 /1631       % Prefix /167.52
    Prefix count /175       % Prefix /171.21
    Prefix count /1815       % Prefix /183.64
    Prefix count /1910       % Prefix /192.43
    Prefix count /2013       % Prefix /203.16
    Prefix count /219       % Prefix /212.18
    Prefix count /2217       % Prefix /224.13
    Prefix count /2335       % Prefix /238.50
    Prefix count /24259       % Prefix /2462.86
    Prefix count /252       % Prefix /250.49
    Prefix count /266       % Prefix /261.46
    Prefix count /277       % Prefix /271.70
    Prefix count /280       % Prefix /280.00
    Prefix count /292       % Prefix /290.49
    Prefix count /300       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /321       % Prefix /320.24

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 /1631       % Prefix /169.20
    Prefix count /172       % Prefix /170.59
    Prefix count /188       % Prefix /182.37
    Prefix count /194       % Prefix /191.19
    Prefix count /2012       % Prefix /203.56
    Prefix count /216       % Prefix /211.78
    Prefix count /2217       % Prefix /225.04
    Prefix count /2331       % Prefix /239.20
    Prefix count /24208       % Prefix /2461.72
    Prefix count /252       % Prefix /250.59
    Prefix count /266       % Prefix /261.78
    Prefix count /277       % Prefix /272.08
    Prefix count /280       % Prefix /280.00
    Prefix count /292       % Prefix /290.59
    Prefix count /300       % Prefix /300.00
    Prefix count /310       % Prefix /310.00
    Prefix count /321       % Prefix /320.30

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 01792       % Addresses at AS distance 00.1
    Addresses at AS distance 1127632       % Addresses at AS distance 14.7
    Addresses at AS distance 21280161       % Addresses at AS distance 247.5
    Addresses at AS distance 31287232       % Addresses at AS distance 347.7
    Addresses at AS distance 4512       % Addresses at AS distance 40.0
     
Cumulative Address by AS distance(data)   Cumulative % Address by AS distance(data)
    Addresses reachable within 0 AS hops1792       % Addresses reachable within 0 AS hops0
    Addresses reachable within 1 AS hops129424       % Addresses reachable within 1 AS hops4
    Addresses reachable within 2 AS hops1409585       % Addresses reachable within 2 AS hops52
    Addresses reachable within 3 AS hops2696817       % Addresses reachable within 3 AS hops99
    Addresses reachable within 4 AS hops2697329       % Addresses reachable within 4 AS hops100
     
ASes by AS distance(data)   % ASes by AS hops(data)
    ASes reachable at 0 AS hops1       % ASes reachable at 0 AS hops1
    ASes reachable at 1 AS hops14       % ASes reachable at 1 AS hops14
    ASes reachable at 2 AS hops56       % ASes reachable at 2 AS hops59
    ASes reachable at 3 AS hops21       % ASes reachable at 3 AS hops22
    ASes reachable at 4 AS hops2       % ASes reachable at 4 AS hops2
     
Cumulative ASes by AS hops(data)   Cumulative % ASes by AS hops(data)
    ASes reachable by 0 AS hops1       Cumulative % ASes by AS hops 01.1
    ASes reachable by 1 AS hops15       Cumulative % ASes by AS hops 116.0
    ASes reachable by 2 AS hops71       Cumulative % ASes by AS hops 275.5
    ASes reachable by 3 AS hops92       Cumulative % ASes by AS hops 397.9
    ASes reachable by 4 AS hops94       Cumulative % ASes by AS hops 4100.0

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 Updates0   New Entries0   Removed Entries0   Updated Entries0
     Report     Report     Report 
    Address Span0       Address Span0       Address Span0       Address Span0
    Average address span per update0       Avg Span0       Avg Span0       Avg Span0
    Average prefix size updated0.00       Average prefix size0.00       Average prefix size0.00       Average prefix size0.00
Per-Prefix updates(data)       Prefix announcements(data)       Prefix withdrawals(data)       Prefix path updates(data)
Update rate, normalized by prefix count Announce   Withdraw   Path Chg 
      Prefix /16 total0.00         Prefix /16 announcements0.00         Prefix /16 withdrawals0.00         Prefix /16 path updates0.00
      Prefix /17 total0.00         Prefix /17 announcements0.00         Prefix /17 withdrawals0.00         Prefix /17 path updates0.00
      Prefix /18 total0.00         Prefix /18 announcements0.00         Prefix /18 withdrawals0.00         Prefix /18 path updates0.00
      Prefix /19 total0.00         Prefix /19 announcements0.00         Prefix /19 withdrawals0.00         Prefix /19 path updates0.00
      Prefix /20 total0.00         Prefix /20 announcements0.00         Prefix /20 withdrawals0.00         Prefix /20 path updates0.00
      Prefix /21 total0.00         Prefix /21 announcements0.00         Prefix /21 withdrawals0.00         Prefix /21 path updates0.00
      Prefix /22 total0.00         Prefix /22 announcements0.00         Prefix /22 withdrawals0.00         Prefix /22 path updates0.00
      Prefix /23 total0.00         Prefix /23 announcements0.00         Prefix /23 withdrawals0.00         Prefix /23 path updates0.00
      Prefix /24 total0.00         Prefix /24 announcements0.00         Prefix /24 withdrawals0.00         Prefix /24 path updates0.00
      Prefix /25 total0.00         Prefix /25 announcements0.00         Prefix /25 withdrawals0.00         Prefix /25 path updates0.00
      Prefix /26 total0.00         Prefix /26 announcements0.00         Prefix /26 withdrawals0.00         Prefix /26 path updates0.00
      Prefix /27 total0.00         Prefix /27 announcements0.00         Prefix /27 withdrawals0.00         Prefix /27 path updates0.00
      Prefix /28 total0.00         Prefix /28 announcements100.00         Prefix /28 withdrawals100.00         Prefix /28 path updates100.00
      Prefix /29 total0.00         Prefix /29 announcements0.00         Prefix /29 withdrawals0.00         Prefix /29 path updates0.00
      Prefix /30 total0.00         Prefix /30 announcements100.00         Prefix /30 withdrawals100.00         Prefix /30 path updates100.00
      Prefix /31 total0.00         Prefix /31 announcements100.00         Prefix /31 withdrawals100.00         Prefix /31 path updates100.00
      Prefix /32 total0.00         Prefix /32 announcements0.00         Prefix /32 withdrawals0.00         Prefix /32 path updates0.00

FIB Update Rate Reports
Updates per hour
(Measurement Period 1 hrs 0 mins)
Data  Announce RateData  Withdraw RateData  Path Chg RateData
Table Updates0.000   New Entries0.000   Removed Entries0.000   Updated Entries0.000
    Address Span0.000       Address Span0.000       Address Span0.000       Address Span0.000
    Average address span per update0.000       Avg Span0.000       Avg Span0.000       Avg Span0.000
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 rate0.000         Prefix /16 announcements0.000         Prefix /16 withdrawals0.000         Prefix /16 path updates0.000
      Prefix /17 update rate0.000         Prefix /17 announcements0.000         Prefix /17 withdrawals0.000         Prefix /17 path updates0.000
      Prefix /18 update rate0.000         Prefix /18 announcements0.000         Prefix /18 withdrawals0.000         Prefix /18 path updates0.000
      Prefix /19 update rate0.000         Prefix /19 announcements0.000         Prefix /19 withdrawals0.000         Prefix /19 path updates0.000
      Prefix /20 update rate0.000         Prefix /20 announcements0.000         Prefix /20 withdrawals0.000         Prefix /20 path updates0.000
      Prefix /21 update rate0.000         Prefix /21 announcements0.000         Prefix /21 withdrawals0.000         Prefix /21 path updates0.000
      Prefix /22 update rate0.000         Prefix /22 announcements0.000         Prefix /22 withdrawals0.000         Prefix /22 path updates0.000
      Prefix /23 update rate0.000         Prefix /23 announcements0.000         Prefix /23 withdrawals0.000         Prefix /23 path updates0.000
      Prefix /24 update rate0.000         Prefix /24 announcements0.000         Prefix /24 withdrawals0.000         Prefix /24 path updates0.000
      Prefix /25 update rate0.000         Prefix /25 announcements0.000         Prefix /25 withdrawals0.000         Prefix /25 path updates0.000
      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 Changes0   Origin Paths0   NextHop Paths0   Transit Paths0   Paths0   Paths0
 Report

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 /132       % AS's announcing span of /130.0217
    AS's announcing span of /144       % AS's announcing span of /140.0435
    AS's announcing span of /1515       % AS's announcing span of /150.1630
    AS's announcing span of /166       % AS's announcing span of /160.0652
    AS's announcing span of /172       % AS's announcing span of /170.0217
    AS's announcing span of /185       % AS's announcing span of /180.0543
    AS's announcing span of /192       % AS's announcing span of /190.0217
    AS's announcing span of /208       % AS's announcing span of /200.0870
    AS's announcing span of /2110       % AS's announcing span of /210.1087
    AS's announcing span of /2210       % AS's announcing span of /220.1087
    AS's announcing span of /230       % AS's announcing span of /230.0000
    AS's announcing span of /2424       % AS's announcing span of /240.2609
    AS's announcing span of /251       % AS's announcing span of /250.0109
    AS's announcing span of /262       % AS's announcing span of /260.0217
    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 /321       % AS's announcing span of /320.0109

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 roiginating 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
Average AS Connectivity Degree (198/94)2.1064
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
AS Adjacencies(data)
AS Adjacencies - downstream(data)
AS Adjacencies - upstream(data)
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 Path285Report (sort by %reduction)Report (sort by reduction)
    Aggregation using AS Path285Report (sort by %reduction)Report (sort by reduction)
    Aggregation using AS Origin285Report (sort by %reduction)Report (sort by reduction)
Prefix Length Filtered Aggregation Summary(data)
    Prefix length filtered237Report (sort by %reduction)Report (sort by reduction)
    Prefix length filtered, Aggregation by prepended AS Path185Report (sort by %reduction)Report (sort by reduction)
    Prefix length filtered, Aggregation by AS Path185Report (sort by %reduction)Report (sort by reduction)
    Prefix length filtered, Aggregation by AS Origin185Report (sort by %reduction)Report (sort by reduction)

BGP Table
BGP Table
Table Summary Report


BGP Reports

Report Index


BGP data obtained from the boundary of AS10533.

Report last updated at Sun Jul 28 10:00:03 2013 (Eastern Time).

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

BGP table analyser written and maintained by Geoff Huston, APNIC.


Related Work: