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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Fri Apr 18 22:01:09 2025 (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)	1006097	Change in FIB Size	40	Change (%)	0.004
All BGP entries (RIB)	2979137
RIB/FIB ratio (2979137/1006097)	2.9611
Valid entries	2979137
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)	3108296576
Total address space advertised (prefix length)	0.46652298
Percentage of IPv4 space advertised (3108296576/4294967295)	72.370669
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3089
Average address span (as prefix size)	20.4071
Average prefix length	22.9054

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	528263	Specifics as % of FIB entries (528263/1006097)	52.5062
Specifics as % of address span (1143333474/3108296576)	36.7833
Specifics where AS prepended Path matches aggregate	230619	AS-P_Path-Match % (230619/528263)	43.66
AS Path matches aggregate	251684	AS-Path-Match % (251684/528263)	47.6437
AS Origin matches aggregate	405453	AS-Origin-Match % (405453/528263)	76.7521
Root Prefixes	477834
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	420513
Root Prefixes with depth 1	46199
Root Prefixes with depth 2	9003
Root Prefixes with depth 3	1612
Root Prefixes with depth 4	392
Root Prefixes with depth 5	81
Root Prefixes with depth 6	28
Root Prefixes with depth 7	5
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	77061	ASes visible in only one AS path	46588
Origin only ASes	65648	Origin ASs announced via a single AS path	46053
Transit only ASes	558	Originating AS ATOM count	76503
Mixed ASes	10855	Originating AS ATOM compression	0.0760
Multi-Origin Prefixes	1765
ASes originating a single prefix	26772
Average FIB entries per Origin AS	13.1511	Maximum entries for an origin AS (AS7713)	3673
Average address range span for an origin AS	40629.7345	Maximum address range for an origin AS (AS749)	228349440

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	251133	Unique AS prepended Paths	270519
AS Paths used in FIB	126181	AS Paths using prepending	70620
AS paths associated with a single FIB entry	59472	AS Paths using private ASs	40
Average AS path length	5.2654	Number of Prefixes with Selected AS Prepending Paths	152076
Maximum AS Path length	13	Number of Prefixes with AS Prepending Paths	152076
Average address weighted AS path length	6.6613	Maximum prepended AS Path length	131
Average entries per AS Path	4.0062	Average entries per FIB AS Path	7.9734
AS Paths per origin AS	3.2827	FIB AS Paths per origin AS	1.6494
AS PATH ATOM compression	0.1254

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	16	% Prefix /9	0.00
Prefix count /10	41	% Prefix /10	0.00
Prefix count /11	93	% Prefix /11	0.01
Prefix count /12	300	% Prefix /12	0.03
Prefix count /13	584	% Prefix /13	0.06
Prefix count /14	1226	% Prefix /14	0.12
Prefix count /15	2169	% Prefix /15	0.22
Prefix count /16	13993	% Prefix /16	1.39
Prefix count /17	8431	% Prefix /17	0.84
Prefix count /18	14040	% Prefix /18	1.40
Prefix count /19	25130	% Prefix /19	2.50
Prefix count /20	45650	% Prefix /20	4.54
Prefix count /21	53288	% Prefix /21	5.30
Prefix count /22	114192	% Prefix /22	11.35
Prefix count /23	106624	% Prefix /23	10.60
Prefix count /24	619465	% Prefix /24	61.57
Prefix count /25	801	% Prefix /25	0.08
Prefix count /26	0	% Prefix /26	0.00
Prefix count /27	1	% Prefix /27	0.00
Prefix count /28	1	% Prefix /28	0.00
Prefix count /29	2	% Prefix /29	0.00
Prefix count /30	0	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	34	% 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	41	% Prefix /10	0.01
Prefix count /11	86	% Prefix /11	0.02
Prefix count /12	264	% Prefix /12	0.06
Prefix count /13	489	% Prefix /13	0.10
Prefix count /14	1045	% Prefix /14	0.22
Prefix count /15	1665	% Prefix /15	0.35
Prefix count /16	11054	% Prefix /16	2.31
Prefix count /17	4469	% Prefix /17	0.94
Prefix count /18	6917	% Prefix /18	1.45
Prefix count /19	14775	% Prefix /19	3.09
Prefix count /20	18943	% Prefix /20	3.96
Prefix count /21	22447	% Prefix /21	4.70
Prefix count /22	59425	% Prefix /22	12.44
Prefix count /23	42772	% Prefix /23	8.95
Prefix count /24	293406	% Prefix /24	61.40
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	4864	% Addresses at AS distance 1	0.0
Addresses at AS distance 2	252932261	% Addresses at AS distance 2	5.9
Addresses at AS distance 3	1149722780	% Addresses at AS distance 3	27.0
Addresses at AS distance 4	1990567073	% Addresses at AS distance 4	46.8
Addresses at AS distance 5	652447488	% Addresses at AS distance 5	15.3
Addresses at AS distance 6	176962048	% Addresses at AS distance 6	4.2
Addresses at AS distance 7	20136704	% Addresses at AS distance 7	0.5
Addresses at AS distance 8	8481280	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	272896	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	94208	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	6912	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	1280	% Addresses at AS distance 12	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	5120	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	252937381	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1402660161	% Addresses reachable within 3 AS hops	32
Addresses reachable within 4 AS hops	3393227234	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4045674722	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4222636770	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4242773474	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4251254754	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4251527650	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4251621858	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4251628770	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4251630050	% Addresses reachable within 12 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	364	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9495	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	28879	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28882	% ASes reachable at 5 AS hops	37
ASes reachable at 6 AS hops	7399	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1565	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	389	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	67	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	18	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	0	% ASes reachable at 11 AS hops	0
ASes reachable at 12 AS hops	0	% ASes reachable at 12 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	367	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9862	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	38741	Cumulative % ASes by AS hops 4	50.3
ASes reachable by 5 AS hops	67623	Cumulative % ASes by AS hops 5	87.8
ASes reachable by 6 AS hops	75022	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	76587	Cumulative % ASes by AS hops 7	99.4
ASes reachable by 8 AS hops	76976	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	77043	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	77061	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	77061	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	77061	Cumulative % ASes by AS hops 12	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	1360	New Entries	155	Removed Entries	112	Updated Entries	1093
		Report		Report		Report
Address Span	2394627	Address Span	73216	Address Span	46595	Address Span	2274816
Average address span per update	1760	Avg Span	472	Avg Span	416	Avg Span	2081
Average prefix size updated	23.62	Average prefix size	23.45	Average prefix size	23.91	Average prefix size	23.62
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /15 total	1	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	1
Prefix /16 total	23	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	23
Prefix /17 total	2	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	2
Prefix /18 total	3	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	3
Prefix /19 total	6	Prefix /19 announcements	0	Prefix /19 withdrawals	0	Prefix /19 path updates	6
Prefix /20 total	27	Prefix /20 announcements	0	Prefix /20 withdrawals	2	Prefix /20 path updates	25
Prefix /21 total	43	Prefix /21 announcements	7	Prefix /21 withdrawals	3	Prefix /21 path updates	33
Prefix /22 total	107	Prefix /22 announcements	18	Prefix /22 withdrawals	5	Prefix /22 path updates	84
Prefix /23 total	101	Prefix /23 announcements	28	Prefix /23 withdrawals	7	Prefix /23 path updates	66
Prefix /24 total	772	Prefix /24 announcements	102	Prefix /24 withdrawals	92	Prefix /24 path updates	578
Prefix /25 total	272	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	272
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	3	Prefix /32 announcements	0	Prefix /32 withdrawals	3	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	0.34	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.42
Prefix /16 total	1.22	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	1.51
Prefix /17 total	0.18	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.22
Prefix /18 total	0.16	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.20
Prefix /19 total	0.18	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.22
Prefix /20 total	0.44	Prefix /20 announcements	0.00	Prefix /20 withdrawals	0.39	Prefix /20 path updates	0.50
Prefix /21 total	0.60	Prefix /21 announcements	0.85	Prefix /21 withdrawals	0.51	Prefix /21 path updates	0.57
Prefix /22 total	0.69	Prefix /22 announcements	1.02	Prefix /22 withdrawals	0.39	Prefix /22 path updates	0.68
Prefix /23 total	0.70	Prefix /23 announcements	1.70	Prefix /23 withdrawals	0.59	Prefix /23 path updates	0.57
Prefix /24 total	0.92	Prefix /24 announcements	1.07	Prefix /24 withdrawals	1.33	Prefix /24 path updates	0.86
Prefix /25 total	251.21	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	312.58
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	65.27	Prefix /32 announcements	0.00	Prefix /32 withdrawals	792.62	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	1360.000	New Entries	155.000	Removed Entries	112.000	Updated Entries	1093.000
Address Span	2394627.000	Address Span	73216.000	Address Span	46595.000	Address Span	2274816.000
Average address span per update	1760.000	Avg Span	472.000	Avg Span	416.000	Avg Span	2081.000
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	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	1.000
Prefix /16 update rate	23.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	23.000
Prefix /17 update rate	2.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	2.000
Prefix /18 update rate	3.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	3.000
Prefix /19 update rate	6.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	6.000
Prefix /20 update rate	27.000	Prefix /20 announcements	0.000	Prefix /20 withdrawals	2.000	Prefix /20 path updates	25.000
Prefix /21 update rate	43.000	Prefix /21 announcements	7.000	Prefix /21 withdrawals	3.000	Prefix /21 path updates	33.000
Prefix /22 update rate	107.000	Prefix /22 announcements	18.000	Prefix /22 withdrawals	5.000	Prefix /22 path updates	84.000
Prefix /23 update rate	101.000	Prefix /23 announcements	28.000	Prefix /23 withdrawals	7.000	Prefix /23 path updates	66.000
Prefix /24 update rate	772.000	Prefix /24 announcements	102.000	Prefix /24 withdrawals	92.000	Prefix /24 path updates	578.000
Prefix /25 update rate	272.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	272.000
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	3.000	Prefix /32 announcements	0.000	Prefix /32 withdrawals	3.000	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	536	Origin Paths	60	NextHop Paths	132	Transit Paths	163	Paths	161	Paths	20
Report
/15 Tot	1	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	1	/15 Prp	0
/16 Tot	23	/16 Org	0	/16 Nxt	0	/16 Trn	0	/16 Fst	23	/16 Prp	0
/17 Tot	2	/17 Org	0	/17 Nxt	0	/17 Trn	0	/17 Fst	2	/17 Prp	0
/18 Tot	3	/18 Org	0	/18 Nxt	1	/18 Trn	0	/18 Fst	2	/18 Prp	0
/19 Tot	6	/19 Org	0	/19 Nxt	1	/19 Trn	0	/19 Fst	5	/19 Prp	0
/20 Tot	25	/20 Org	0	/20 Nxt	7	/20 Trn	6	/20 Fst	12	/20 Prp	0
/21 Tot	33	/21 Org	0	/21 Nxt	2	/21 Trn	13	/21 Fst	18	/21 Prp	0
/22 Tot	84	/22 Org	0	/22 Nxt	17	/22 Trn	37	/22 Fst	12	/22 Prp	18
/23 Tot	66	/23 Org	0	/23 Nxt	13	/23 Trn	17	/23 Fst	34	/23 Prp	2
/24 Tot	578	/24 Org	5	/24 Nxt	153	/24 Trn	248	/24 Fst	149	/24 Prp	23
/25 Tot	272	/25 Org	59	/25 Nxt	18	/25 Trn	0	/25 Fst	195	/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	2	% AS's announcing span of /4	0.0000
AS's announcing span of /5	5	% AS's announcing span of /5	0.0001
AS's announcing span of /6	10	% 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	45	% AS's announcing span of /8	0.0006
AS's announcing span of /9	70	% AS's announcing span of /9	0.0009
AS's announcing span of /10	104	% AS's announcing span of /10	0.0014
AS's announcing span of /11	171	% AS's announcing span of /11	0.0022
AS's announcing span of /12	244	% AS's announcing span of /12	0.0032
AS's announcing span of /13	398	% AS's announcing span of /13	0.0052
AS's announcing span of /14	843	% AS's announcing span of /14	0.0110
AS's announcing span of /15	1655	% AS's announcing span of /15	0.0217
AS's announcing span of /16	1766	% AS's announcing span of /16	0.0231
AS's announcing span of /17	2449	% AS's announcing span of /17	0.0320
AS's announcing span of /18	3736	% AS's announcing span of /18	0.0489
AS's announcing span of /19	5161	% AS's announcing span of /19	0.0675
AS's announcing span of /20	7533	% AS's announcing span of /20	0.0986
AS's announcing span of /21	10440	% AS's announcing span of /21	0.1366
AS's announcing span of /22	12831	% AS's announcing span of /22	0.1679
AS's announcing span of /23	9938	% AS's announcing span of /23	0.1300
AS's announcing span of /24	18994	% AS's announcing span of /24	0.2485
AS's announcing span of /25	16	% AS's announcing span of /25	0.0002
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.

h h h

AS Connectivity Report	Data
AS Adjacency Count	129028
Average AS Connectivity Degree (258056/77061)	3.3487
Average AS Connectivity IN:OUT Degree	0.1553
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	558652	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	541584	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	380191	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	380219	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 Fri Apr 18 22:01:09 2025 (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