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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Thu Apr 25 11:01:08 2024 (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)	970254	Change in FIB Size	28	Change (%)	0.003
All BGP entries (RIB)	2873270
RIB/FIB ratio (2873270/970254)	2.9614
Valid entries	2873270
Suppressed RIB entries	0
Damped entries	0
History entries	0

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)	3028945024
Total address space advertised (prefix length)	0.50383175
Percentage of IPv4 space advertised (3028945024/4294967295)	70.523122
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3122
Average address span (as prefix size)	20.3922
Average prefix length	22.8818

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 aggregates	509028	Specifics as % of FIB entries (509028/970254)	52.4634
Specifics as % of address span (1114096989/3028945024)	36.7817
Specifics where AS prepended Path matches aggregate	227108	AS-P_Path-Match % (227108/509028)	44.62
AS Path matches aggregate	244442	AS-Path-Match % (244442/509028)	48.0213
AS Origin matches aggregate	390092	AS-Origin-Match % (390092/509028)	76.6347
Root Prefixes	461226
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	404497
Root Prefixes with depth 1	45937
Root Prefixes with depth 2	8744
Root Prefixes with depth 3	1509
Root Prefixes with depth 4	413
Root Prefixes with depth 5	85
Root Prefixes with depth 6	32
Root Prefixes with depth 7	8
Root Prefixes with depth 8	1

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 ASes	75943	ASes visible in only one AS path	45896
Origin only ASes	64828	Origin ASs announced via a single AS path	45389
Transit only ASes	530	Originating AS ATOM count	75413
Mixed ASes	10585	Originating AS ATOM compression	0.0777
Multi-Origin Prefixes	2263
ASes originating a single prefix	26483
Average FIB entries per Origin AS	12.8659	Maximum entries for an origin AS (AS54994)	678
Average address range span for an origin AS	40164.7597	Maximum address range for an origin AS (AS749)	228483328

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 Paths	247970	Unique AS prepended Paths	267011
AS Paths used in FIB	124501	AS Paths using prepending	69874
AS paths associated with a single FIB entry	58890	AS Paths using private ASs	39
Average AS path length	5.3057	Number of Prefixes with Selected AS Prepending Paths	132798
Maximum AS Path length	14	Number of Prefixes with AS Prepending Paths	132798
Average address weighted AS path length	6.7130	Maximum prepended AS Path length	58
Average entries per AS Path	3.9128	Average entries per FIB AS Path	7.7931
AS Paths per origin AS	3.2882	FIB AS Paths per origin AS	1.6509
AS PATH ATOM compression	0.1283

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 /8	16	% Prefix /8	0.00
Prefix count /9	14	% Prefix /9	0.00
Prefix count /10	37	% Prefix /10	0.00
Prefix count /11	95	% Prefix /11	0.01
Prefix count /12	299	% Prefix /12	0.03
Prefix count /13	582	% Prefix /13	0.06
Prefix count /14	1197	% Prefix /14	0.12
Prefix count /15	2111	% Prefix /15	0.22
Prefix count /16	13329	% Prefix /16	1.37
Prefix count /17	8336	% Prefix /17	0.86
Prefix count /18	13976	% Prefix /18	1.44
Prefix count /19	25112	% Prefix /19	2.59
Prefix count /20	44930	% Prefix /20	4.63
Prefix count /21	52784	% Prefix /21	5.44
Prefix count /22	113223	% Prefix /22	11.67
Prefix count /23	103617	% Prefix /23	10.68
Prefix count /24	589860	% Prefix /24	60.79
Prefix count /25	727	% Prefix /25	0.07
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	2	% Prefix /27	0.00
Prefix count /28	1	% Prefix /28	0.00
Prefix count /29	1	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	5	% Prefix /32	0.00

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 /8	16	% Prefix /8	0.00
Prefix count /9	9	% Prefix /9	0.00
Prefix count /10	37	% Prefix /10	0.01
Prefix count /11	89	% Prefix /11	0.02
Prefix count /12	265	% Prefix /12	0.06
Prefix count /13	484	% Prefix /13	0.10
Prefix count /14	1028	% Prefix /14	0.22
Prefix count /15	1653	% Prefix /15	0.36
Prefix count /16	10198	% Prefix /16	2.21
Prefix count /17	4410	% Prefix /17	0.96
Prefix count /18	6820	% Prefix /18	1.48
Prefix count /19	14898	% Prefix /19	3.23
Prefix count /20	19128	% Prefix /20	4.15
Prefix count /21	22892	% Prefix /21	4.96
Prefix count /22	59745	% Prefix /22	12.95
Prefix count /23	41256	% Prefix /23	8.94
Prefix count /24	278287	% Prefix /24	60.34
Prefix count /25	11	% Prefix /25	0.00
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	0	% Prefix /27	0.00
Prefix count /28	0	% Prefix /28	0.00
Prefix count /29	0	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	0	% Prefix /32	0.00

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 0	256	% Addresses at AS distance 0	0.0
Addresses at AS distance 1	70400	% Addresses at AS distance 1	0.0
Addresses at AS distance 2	217589947	% Addresses at AS distance 2	5.3
Addresses at AS distance 3	1165946114	% Addresses at AS distance 3	28.1
Addresses at AS distance 4	1844887328	% Addresses at AS distance 4	44.5
Addresses at AS distance 5	696629632	% Addresses at AS distance 5	16.8
Addresses at AS distance 6	156874880	% Addresses at AS distance 6	3.8
Addresses at AS distance 7	43240192	% Addresses at AS distance 7	1.0
Addresses at AS distance 8	9721344	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	7968512	% Addresses at AS distance 9	0.2
Addresses at AS distance 10	101120	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	12288	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	0	% Addresses at AS distance 12	0.0
Addresses at AS distance 13	0	% Addresses at AS distance 13	0.0

Cumulative Address by AS distance	(data)	Cumulative % Address by AS distance	(data)
Addresses reachable within 0 AS hops	256	% Addresses reachable within 0 AS hops	0
Addresses reachable within 1 AS hops	70656	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	217660603	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1383606717	% Addresses reachable within 3 AS hops	33
Addresses reachable within 4 AS hops	3228494045	% Addresses reachable within 4 AS hops	77
Addresses reachable within 5 AS hops	3925123677	% Addresses reachable within 5 AS hops	94
Addresses reachable within 6 AS hops	4081998557	% Addresses reachable within 6 AS hops	98
Addresses reachable within 7 AS hops	4125238749	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4134960093	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4142928605	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4143029725	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4143042013	% Addresses reachable within 11 AS hops	100
Addresses reachable within 12 AS hops	4143042013	% Addresses reachable within 12 AS hops	100
Addresses reachable within 13 AS hops	4143042013	% Addresses reachable within 13 AS hops	100

ASes by AS distance	(data)	% ASes by AS hops	(data)
ASes reachable at 0 AS hops	1	% ASes reachable at 0 AS hops	0
ASes reachable at 1 AS hops	2	% ASes reachable at 1 AS hops	0
ASes reachable at 2 AS hops	206	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	8319	% ASes reachable at 3 AS hops	10
ASes reachable at 4 AS hops	29138	% ASes reachable at 4 AS hops	38
ASes reachable at 5 AS hops	28463	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7697	% ASes reachable at 6 AS hops	10
ASes reachable at 7 AS hops	1632	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	332	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	140	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	9	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	4	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	0	% ASes reachable at 12 AS hops	0
ASes reachable at 13 AS hops	0	% ASes reachable at 13 AS hops	0

Cumulative ASes by AS hops	(data)	Cumulative % ASes by AS hops	(data)
ASes reachable by 0 AS hops	1	Cumulative % ASes by AS hops 0	0.0
ASes reachable by 1 AS hops	3	Cumulative % ASes by AS hops 1	0.0
ASes reachable by 2 AS hops	209	Cumulative % ASes by AS hops 2	0.3
ASes reachable by 3 AS hops	8528	Cumulative % ASes by AS hops 3	11.2
ASes reachable by 4 AS hops	37666	Cumulative % ASes by AS hops 4	49.6
ASes reachable by 5 AS hops	66129	Cumulative % ASes by AS hops 5	87.1
ASes reachable by 6 AS hops	73826	Cumulative % ASes by AS hops 6	97.2
ASes reachable by 7 AS hops	75458	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	75790	Cumulative % ASes by AS hops 8	99.8
ASes reachable by 9 AS hops	75930	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	75939	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	75943	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	75943	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	75943	Cumulative % ASes by AS hops 13	100.0

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 Reports	Data	Announce	Data	Withdraw	Data	Path Chg	Data
Table Updates	2233	New Entries	189	Removed Entries	159	Updated Entries	1885
		Report		Report		Report
Address Span	2284288	Address Span	285440	Address Span	235776	Address Span	1763072
Average address span per update	1022	Avg Span	1510	Avg Span	1482	Avg Span	935
Average prefix size updated	23.52	Average prefix size	23.59	Average prefix size	23.55	Average prefix size	23.51
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /15 total	1	Prefix /15 announcements	1	Prefix /15 withdrawals	0	Prefix /15 path updates	0
Prefix /16 total	7	Prefix /16 announcements	1	Prefix /16 withdrawals	2	Prefix /16 path updates	4
Prefix /17 total	8	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	8
Prefix /18 total	7	Prefix /18 announcements	1	Prefix /18 withdrawals	2	Prefix /18 path updates	4
Prefix /19 total	21	Prefix /19 announcements	0	Prefix /19 withdrawals	2	Prefix /19 path updates	19
Prefix /20 total	71	Prefix /20 announcements	0	Prefix /20 withdrawals	2	Prefix /20 path updates	69
Prefix /21 total	96	Prefix /21 announcements	8	Prefix /21 withdrawals	0	Prefix /21 path updates	88
Prefix /22 total	179	Prefix /22 announcements	10	Prefix /22 withdrawals	9	Prefix /22 path updates	160
Prefix /23 total	142	Prefix /23 announcements	11	Prefix /23 withdrawals	7	Prefix /23 path updates	124
Prefix /24 total	1441	Prefix /24 announcements	157	Prefix /24 withdrawals	135	Prefix /24 path updates	1149
Prefix /25 total	260	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	260
Prefix /26 total	0	Prefix /26 announcements	0	Prefix /26 withdrawals	0	Prefix /26 path updates	0
Prefix /27 total	0	Prefix /27 announcements	0	Prefix /27 withdrawals	0	Prefix /27 path updates	0
Prefix /28 total	0	Prefix /28 announcements	0	Prefix /28 withdrawals	0	Prefix /28 path updates	0
Prefix /29 total	0	Prefix /29 announcements	0	Prefix /29 withdrawals	0	Prefix /29 path updates	0
Prefix /30 total	0	Prefix /30 announcements	0	Prefix /30 withdrawals	0	Prefix /30 path updates	0
Prefix /31 total	0	Prefix /31 announcements	0	Prefix /31 withdrawals	0	Prefix /31 path updates	0
Prefix /32 total	0	Prefix /32 announcements	0	Prefix /32 withdrawals	0	Prefix /32 path updates	0
Update rate, normalized by prefix count		Announce		Withdraw		Path Chg
Prefix /8 total	0.00	Prefix /8 announcements	0.00	Prefix /8 withdrawals	0.00	Prefix /8 path updates	0.00
Prefix /9 total	0.00	Prefix /9 announcements	0.00	Prefix /9 withdrawals	0.00	Prefix /9 path updates	0.00
Prefix /10 total	0.00	Prefix /10 announcements	0.00	Prefix /10 withdrawals	0.00	Prefix /10 path updates	0.00
Prefix /11 total	0.00	Prefix /11 announcements	0.00	Prefix /11 withdrawals	0.00	Prefix /11 path updates	0.00
Prefix /12 total	0.00	Prefix /12 announcements	0.00	Prefix /12 withdrawals	0.00	Prefix /12 path updates	0.00
Prefix /13 total	0.00	Prefix /13 announcements	0.00	Prefix /13 withdrawals	0.00	Prefix /13 path updates	0.00
Prefix /14 total	0.00	Prefix /14 announcements	0.00	Prefix /14 withdrawals	0.00	Prefix /14 path updates	0.00
Prefix /15 total	0.21	Prefix /15 announcements	2.43	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.00
Prefix /16 total	0.23	Prefix /16 announcements	0.39	Prefix /16 withdrawals	0.92	Prefix /16 path updates	0.15
Prefix /17 total	0.42	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.49
Prefix /18 total	0.22	Prefix /18 announcements	0.37	Prefix /18 withdrawals	0.87	Prefix /18 path updates	0.15
Prefix /19 total	0.36	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.49	Prefix /19 path updates	0.39
Prefix /20 total	0.69	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.27	Prefix /20 path updates	0.79
Prefix /21 total	0.79	Prefix /21 announcements	0.78	Prefix /21 withdrawals	0.00	Prefix /21 path updates	0.86
Prefix /22 total	0.69	Prefix /22 announcements	0.45	Prefix /22 withdrawals	0.49	Prefix /22 path updates	0.73
Prefix /23 total	0.60	Prefix /23 announcements	0.54	Prefix /23 withdrawals	0.41	Prefix /23 path updates	0.62
Prefix /24 total	1.06	Prefix /24 announcements	1.37	Prefix /24 withdrawals	1.40	Prefix /24 path updates	1.00
Prefix /25 total	155.39	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	184.08
Prefix /26 total	0.00	Prefix /26 announcements	100.00	Prefix /26 withdrawals	100.00	Prefix /26 path updates	100.00
Prefix /27 total	0.00	Prefix /27 announcements	0.00	Prefix /27 withdrawals	0.00	Prefix /27 path updates	0.00
Prefix /28 total	0.00	Prefix /28 announcements	0.00	Prefix /28 withdrawals	0.00	Prefix /28 path updates	0.00
Prefix /29 total	0.00	Prefix /29 announcements	0.00	Prefix /29 withdrawals	0.00	Prefix /29 path updates	0.00
Prefix /30 total	0.00	Prefix /30 announcements	100.00	Prefix /30 withdrawals	100.00	Prefix /30 path updates	100.00
Prefix /31 total	0.00	Prefix /31 announcements	100.00	Prefix /31 withdrawals	100.00	Prefix /31 path updates	100.00
Prefix /32 total	0.00	Prefix /32 announcements	0.00	Prefix /32 withdrawals	0.00	Prefix /32 path updates	0.00

FIB Update Rate Reports Updates per hour (Measurement Period 1 hrs 0 mins)	Data	Announce Rate	Data	Withdraw Rate	Data	Path Chg Rate	Data
Table Updates	2233.000	New Entries	189.000	Removed Entries	159.000	Updated Entries	1885.000
Address Span	2284288.000	Address Span	285440.000	Address Span	235776.000	Address Span	1763072.000
Average address span per update	1022.000	Avg Span	1510.000	Avg Span	1482.000	Avg Span	935.000
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /1 update rate	0.000	Prefix /1 announcements	0.000	Prefix /1 withdrawals	0.000	Prefix /1 path updates	0.000
Prefix /2 update rate	0.000	Prefix /2 announcements	0.000	Prefix /2 withdrawals	0.000	Prefix /2 path updates	0.000
Prefix /3 update rate	0.000	Prefix /3 announcements	0.000	Prefix /3 withdrawals	0.000	Prefix /3 path updates	0.000
Prefix /4 update rate	0.000	Prefix /4 announcements	0.000	Prefix /4 withdrawals	0.000	Prefix /4 path updates	0.000
Prefix /5 update rate	0.000	Prefix /5 announcements	0.000	Prefix /5 withdrawals	0.000	Prefix /5 path updates	0.000
Prefix /6 update rate	0.000	Prefix /6 announcements	0.000	Prefix /6 withdrawals	0.000	Prefix /6 path updates	0.000
Prefix /7 update rate	0.000	Prefix /7 announcements	0.000	Prefix /7 withdrawals	0.000	Prefix /7 path updates	0.000
Prefix /8 update rate	0.000	Prefix /8 announcements	0.000	Prefix /8 withdrawals	0.000	Prefix /8 path updates	0.000
Prefix /9 update rate	0.000	Prefix /9 announcements	0.000	Prefix /9 withdrawals	0.000	Prefix /9 path updates	0.000
Prefix /10 update rate	0.000	Prefix /10 announcements	0.000	Prefix /10 withdrawals	0.000	Prefix /10 path updates	0.000
Prefix /11 update rate	0.000	Prefix /11 announcements	0.000	Prefix /11 withdrawals	0.000	Prefix /11 path updates	0.000
Prefix /12 update rate	0.000	Prefix /12 announcements	0.000	Prefix /12 withdrawals	0.000	Prefix /12 path updates	0.000
Prefix /13 update rate	0.000	Prefix /13 announcements	0.000	Prefix /13 withdrawals	0.000	Prefix /13 path updates	0.000
Prefix /14 update rate	0.000	Prefix /14 announcements	0.000	Prefix /14 withdrawals	0.000	Prefix /14 path updates	0.000
Prefix /15 update rate	1.000	Prefix /15 announcements	1.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	0.000
Prefix /16 update rate	7.000	Prefix /16 announcements	1.000	Prefix /16 withdrawals	2.000	Prefix /16 path updates	4.000
Prefix /17 update rate	8.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	8.000
Prefix /18 update rate	7.000	Prefix /18 announcements	1.000	Prefix /18 withdrawals	2.000	Prefix /18 path updates	4.000
Prefix /19 update rate	21.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	2.000	Prefix /19 path updates	19.000
Prefix /20 update rate	71.000	Prefix /20 announcements	0.000	Prefix /20 withdrawals	2.000	Prefix /20 path updates	69.000
Prefix /21 update rate	96.000	Prefix /21 announcements	8.000	Prefix /21 withdrawals	0.000	Prefix /21 path updates	88.000
Prefix /22 update rate	179.000	Prefix /22 announcements	10.000	Prefix /22 withdrawals	9.000	Prefix /22 path updates	160.000
Prefix /23 update rate	142.000	Prefix /23 announcements	11.000	Prefix /23 withdrawals	7.000	Prefix /23 path updates	124.000
Prefix /24 update rate	1441.000	Prefix /24 announcements	157.000	Prefix /24 withdrawals	135.000	Prefix /24 path updates	1149.000
Prefix /25 update rate	260.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	260.000
Prefix /26 update rate	0.000	Prefix /26 announcements	0.000	Prefix /26 withdrawals	0.000	Prefix /26 path updates	0.000
Prefix /27 update rate	0.000	Prefix /27 announcements	0.000	Prefix /27 withdrawals	0.000	Prefix /27 path updates	0.000
Prefix /28 update rate	0.000	Prefix /28 announcements	0.000	Prefix /28 withdrawals	0.000	Prefix /28 path updates	0.000
Prefix /29 update rate	0.000	Prefix /29 announcements	0.000	Prefix /29 withdrawals	0.000	Prefix /29 path updates	0.000
Prefix /30 update rate	0.000	Prefix /30 announcements	0.000	Prefix /30 withdrawals	0.000	Prefix /30 path updates	0.000
Prefix /31 update rate	0.000	Prefix /31 announcements	0.000	Prefix /31 withdrawals	0.000	Prefix /31 path updates	0.000
Prefix /32 update rate	0.000	Prefix /32 announcements	0.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	0.000

Path Updates - Breakdown by Update Type

Examines those updates that involved a change of AS Path and breaks this down into five categories:

A change of origin AS (origin)
A change in the origin's nexthop AS (remote change)
A change in the transit AS path (transit)
A change in the firsthop AS (Local change)
A change in AS prepending (Traffic Engineering)

Total	Data	Origin	Data	Origin Next Hop	Data	Transit	Data	First Hop	Data	Prepend	Data
Total Path Changes	758	Origin Paths	64	NextHop Paths	188	Transit Paths	277	Paths	199	Paths	30
Report
/16 Tot	4	/16 Org	0	/16 Nxt	1	/16 Trn	2	/16 Fst	1	/16 Prp	0
/17 Tot	8	/17 Org	0	/17 Nxt	1	/17 Trn	2	/17 Fst	5	/17 Prp	0
/18 Tot	4	/18 Org	0	/18 Nxt	0	/18 Trn	1	/18 Fst	3	/18 Prp	0
/19 Tot	19	/19 Org	0	/19 Nxt	0	/19 Trn	3	/19 Fst	16	/19 Prp	0
/20 Tot	69	/20 Org	0	/20 Nxt	7	/20 Trn	8	/20 Fst	53	/20 Prp	1
/21 Tot	88	/21 Org	0	/21 Nxt	15	/21 Trn	35	/21 Fst	38	/21 Prp	0
/22 Tot	160	/22 Org	0	/22 Nxt	42	/22 Trn	58	/22 Fst	59	/22 Prp	1
/23 Tot	124	/23 Org	6	/23 Nxt	24	/23 Trn	37	/23 Fst	50	/23 Prp	7
/24 Tot	1149	/24 Org	8	/24 Nxt	414	/24 Trn	348	/24 Fst	325	/24 Prp	54
/25 Tot	260	/25 Org	57	/25 Nxt	19	/25 Trn	0	/25 Fst	184	/25 Prp	0
/26 Tot	0	/26 Org	0	/26 Nxt	0	/26 Trn	0	/26 Fst	0	/26 Prp	0
/27 Tot	0	/27 Org	0	/27 Nxt	0	/27 Trn	0	/27 Fst	0	/27 Prp	0
/28 Tot	0	/28 Org	0	/28 Nxt	0	/28 Trn	0	/28 Fst	0	/28 Prp	0
/29 Tot	0	/29 Org	0	/29 Nxt	0	/29 Trn	0	/29 Fst	0	/29 Prp	0
/30 Tot	0	/30 Org	0	/30 Nxt	0	/30 Trn	0	/30 Fst	0	/30 Prp	0
/31 Tot	0	/31 Org	0	/31 Nxt	0	/31 Trn	0	/31 Fst	0	/31 Prp	0
/32 Tot	0	/32 Org	0	/32 Nxt	0	/32 Trn	0	/32 Fst	0	/32 Prp	0

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 Reports	Data Sets(txt)	Percentage Reports	Data
Originating Addresses AS Count	(data)	Originating Addresses % AS Count	(data)
AS's announcing span of /4	1	% AS's announcing span of /4	0.0000
AS's announcing span of /5	6	% AS's announcing span of /5	0.0001
AS's announcing span of /6	9	% AS's announcing span of /6	0.0001
AS's announcing span of /7	23	% AS's announcing span of /7	0.0003
AS's announcing span of /8	47	% AS's announcing span of /8	0.0006
AS's announcing span of /9	73	% AS's announcing span of /9	0.0010
AS's announcing span of /10	101	% AS's announcing span of /10	0.0013
AS's announcing span of /11	171	% AS's announcing span of /11	0.0023
AS's announcing span of /12	244	% AS's announcing span of /12	0.0032
AS's announcing span of /13	399	% AS's announcing span of /13	0.0053
AS's announcing span of /14	850	% AS's announcing span of /14	0.0113
AS's announcing span of /15	1682	% AS's announcing span of /15	0.0223
AS's announcing span of /16	1777	% AS's announcing span of /16	0.0236
AS's announcing span of /17	2489	% AS's announcing span of /17	0.0330
AS's announcing span of /18	3758	% AS's announcing span of /18	0.0499
AS's announcing span of /19	5115	% AS's announcing span of /19	0.0679
AS's announcing span of /20	7469	% AS's announcing span of /20	0.0991
AS's announcing span of /21	10522	% AS's announcing span of /21	0.1397
AS's announcing span of /22	12676	% AS's announcing span of /22	0.1683
AS's announcing span of /23	9388	% AS's announcing span of /23	0.1246
AS's announcing span of /24	18514	% AS's announcing span of /24	0.2458
AS's announcing span of /25	21	% AS's announcing span of /25	0.0003
AS's announcing span of /26	0	% AS's announcing span of /26	0.0000
AS's announcing span of /27	0	% AS's announcing span of /27	0.0000
AS's announcing span of /28	0	% AS's announcing span of /28	0.0000
AS's announcing span of /29	0	% AS's announcing span of /29	0.0000
AS's announcing span of /30	0	% AS's announcing span of /30	0.0000
AS's announcing span of /31	0	% AS's announcing span of /31	0.0000
AS's announcing span of /32	0	% AS's announcing span of /32	0.0000

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.

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AS Connectivity Report	Data
AS Adjacency Count	125511
Average AS Connectivity Degree (251022/75943)	3.3054
Average AS Connectivity IN:OUT Degree	0.1522
AS Names
AS's ordered by Originating Address
AS's ordered by Transit Address
AS's ordered by Originating + Transit Address
AS's ordered by AS Adjacency
AS's ordered by Downstream AS Adjacency
AS's ordered by Upstream AS Adjacency
AS Adjacency
Inconsistent Origin AS Prefixes

Aggregation Reports

This set of reports lists all potential aggregation of a number of specific routes into an aggregate route. The aggregation criteria include a match of the original AS path, which may include prepended AS's, a match of the reduced AS Path, and a match on the Origin AS only. As this view is taken from a single sample point, this list is not definitive, and the report will propose potential aggregation actions which may not be feasible for the Origin AS. The report also applies a prefix length filter to all prefixes, accepting only those prefixes which pass the following ruleset:

24.0.0.0/8 accept prefix length <=20
61.0.0.0/8 accept prefix length <= 20
63.0.0.0/8 accept prefix length <= 20
64.0.0.0/8 accept prefix length <= 20
65.0.0.0/8 accept prefix length <= 20
66.0.0.0/8 accept prefix length <= 20
0.0.0.0/1 (0.0.0.0/8 through 126.0.0.0/8) accept prefix length <= 19
128.0.0.0/2 (128.0.0.0/8 through 191.0.0.0/8) accept prefix length <= 16
192.0.0.0/8 through 204.0.0.0/8 accept prefix length <=24
205.0.0.0/8 through 255.0.0.0/8 accept prefix length <=20

Aggregation possibilities are identified within this filtered prefix set.

Route Aggregation Reports	Data
Aggregation Potential Summary	(data)
Aggregation Potential Summary	(data)
Aggregation using prepended AS Path	535943	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	520222	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	365149	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	365167	Report (sort by %reduction)	Report (sort by reduction)	BGP Table

BGP Table

Table Summary Report

BGP Report

BGP data obtained from the boundary of AS65000

Report last updated at Thu Apr 25 11:01:08 2024 (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

The name is a reference to a graph of the data. If the data is a single series then this is a simple time-series plot. If the data is a multi-series vector, the first graph is a compound graph of the time series of each element in the vector, the second is a relative plot using a common start point and looking at the relative change in the value of each element of the vector. The third is a relative plot, normalizing the start point to zero and looking at the absolute change in each element of the vector. The last isa distribution graph.
The value is a reference to the text raw data file. The text file uses a column format, with the first column representing the measurement time. The time base is the number of seconds since 1 January 1970 UTC. If you wish to convert this to Microsoft Excel time format, then divide this time