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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Sun Dec 10 14:01:08 2023 (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)	941900	Change in FIB Size	20	Change (%)	0.002
All BGP entries (RIB)	2811709
RIB/FIB ratio (2811709/941900)	2.9851
Valid entries	2811709
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)	3049014528
Total address space advertised (prefix length)	0.49430412
Percentage of IPv4 space advertised (3049014528/4294967295)	70.990402
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3237
Average address span (as prefix size)	20.3396
Average prefix length	22.8587

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	485998	Specifics as % of FIB entries (485998/941900)	51.5976
Specifics as % of address span (1100445392/3049014528)	36.0918
Specifics where AS prepended Path matches aggregate	228462	AS-P_Path-Match % (228462/485998)	47.01
AS Path matches aggregate	244000	AS-Path-Match % (244000/485998)	50.2060
AS Origin matches aggregate	369437	AS-Origin-Match % (369437/485998)	76.0162
Root Prefixes	455902
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	401362
Root Prefixes with depth 1	44682
Root Prefixes with depth 2	8045
Root Prefixes with depth 3	1367
Root Prefixes with depth 4	332
Root Prefixes with depth 5	75
Root Prefixes with depth 6	29
Root Prefixes with depth 7	9
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	75255	ASes visible in only one AS path	46276
Origin only ASes	64337	Origin ASs announced via a single AS path	45790
Transit only ASes	480	Originating AS ATOM count	74775
Mixed ASes	10438	Originating AS ATOM compression	0.0794
Multi-Origin Prefixes	1977
ASes originating a single prefix	26757
Average FIB entries per Origin AS	12.5965	Maximum entries for an origin AS (AS7713)	3603
Average address range span for an origin AS	40775.8546	Maximum address range for an origin AS (AS749)	228560128

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	246238	Unique AS prepended Paths	265093
AS Paths used in FIB	120667	AS Paths using prepending	69525
AS paths associated with a single FIB entry	57498	AS Paths using private ASs	39
Average AS path length	5.3511	Number of Prefixes with Selected AS Prepending Paths	135955
Maximum AS Path length	13	Number of Prefixes with AS Prepending Paths	135955
Average address weighted AS path length	6.7477	Maximum prepended AS Path length	57
Average entries per AS Path	3.8252	Average entries per FIB AS Path	7.8058
AS Paths per origin AS	3.2931	FIB AS Paths per origin AS	1.6137
AS PATH ATOM compression	0.1281

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	38	% Prefix /10	0.00
Prefix count /11	99	% Prefix /11	0.01
Prefix count /12	299	% Prefix /12	0.03
Prefix count /13	584	% Prefix /13	0.06
Prefix count /14	1194	% Prefix /14	0.13
Prefix count /15	2093	% Prefix /15	0.22
Prefix count /16	13470	% Prefix /16	1.43
Prefix count /17	8329	% Prefix /17	0.88
Prefix count /18	13883	% Prefix /18	1.47
Prefix count /19	25209	% Prefix /19	2.68
Prefix count /20	44545	% Prefix /20	4.73
Prefix count /21	52098	% Prefix /21	5.53
Prefix count /22	111269	% Prefix /22	11.81
Prefix count /23	100299	% Prefix /23	10.65
Prefix count /24	567714	% Prefix /24	60.27
Prefix count /25	735	% 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	1	% Prefix /29	0.00
Prefix count /30	5	% Prefix /30	0.00
Prefix count /31	0	% Prefix /31	0.00
Prefix count /32	4	% 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	38	% Prefix /10	0.01
Prefix count /11	93	% Prefix /11	0.02
Prefix count /12	262	% Prefix /12	0.06
Prefix count /13	484	% Prefix /13	0.11
Prefix count /14	1026	% Prefix /14	0.23
Prefix count /15	1648	% Prefix /15	0.36
Prefix count /16	10354	% Prefix /16	2.27
Prefix count /17	4459	% Prefix /17	0.98
Prefix count /18	6816	% Prefix /18	1.50
Prefix count /19	15068	% Prefix /19	3.31
Prefix count /20	19139	% Prefix /20	4.20
Prefix count /21	22763	% Prefix /21	4.99
Prefix count /22	59964	% Prefix /22	13.15
Prefix count /23	41774	% Prefix /23	9.16
Prefix count /24	271981	% Prefix /24	59.66
Prefix count /25	8	% 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	70912	% Addresses at AS distance 1	0.0
Addresses at AS distance 2	213499926	% Addresses at AS distance 2	5.1
Addresses at AS distance 3	1107754778	% Addresses at AS distance 3	26.7
Addresses at AS distance 4	1816774432	% Addresses at AS distance 4	43.8
Addresses at AS distance 5	758954752	% Addresses at AS distance 5	18.3
Addresses at AS distance 6	181642368	% Addresses at AS distance 6	4.4
Addresses at AS distance 7	52047104	% Addresses at AS distance 7	1.3
Addresses at AS distance 8	10734080	% Addresses at AS distance 8	0.3
Addresses at AS distance 9	7798528	% Addresses at AS distance 9	0.2
Addresses at AS distance 10	169984	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	12800	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	0	% 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	71168	% Addresses reachable within 1 AS hops	0
Addresses reachable within 2 AS hops	213571094	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1321325872	% Addresses reachable within 3 AS hops	31
Addresses reachable within 4 AS hops	3138100304	% Addresses reachable within 4 AS hops	75
Addresses reachable within 5 AS hops	3897055056	% Addresses reachable within 5 AS hops	93
Addresses reachable within 6 AS hops	4078697424	% Addresses reachable within 6 AS hops	98
Addresses reachable within 7 AS hops	4130744528	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4141478608	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4149277136	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4149447120	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4149459920	% Addresses reachable within 11 AS hops	100
Addresses reachable within 12 AS hops	4149459920	% 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	212	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	7550	% ASes reachable at 3 AS hops	10
ASes reachable at 4 AS hops	27177	% ASes reachable at 4 AS hops	36
ASes reachable at 5 AS hops	29440	% ASes reachable at 5 AS hops	39
ASes reachable at 6 AS hops	8604	% ASes reachable at 6 AS hops	11
ASes reachable at 7 AS hops	1742	% ASes reachable at 7 AS hops	2
ASes reachable at 8 AS hops	320	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	171	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	32	% 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

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	215	Cumulative % ASes by AS hops 2	0.3
ASes reachable by 3 AS hops	7765	Cumulative % ASes by AS hops 3	10.3
ASes reachable by 4 AS hops	34942	Cumulative % ASes by AS hops 4	46.4
ASes reachable by 5 AS hops	64382	Cumulative % ASes by AS hops 5	85.6
ASes reachable by 6 AS hops	72986	Cumulative % ASes by AS hops 6	97.0
ASes reachable by 7 AS hops	74728	Cumulative % ASes by AS hops 7	99.3
ASes reachable by 8 AS hops	75048	Cumulative % ASes by AS hops 8	99.7
ASes reachable by 9 AS hops	75219	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	75251	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	75255	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	75255	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	1821	New Entries	232	Removed Entries	210	Updated Entries	1379
		Report		Report		Report
Address Span	1666689	Address Span	87296	Address Span	77824	Address Span	1501569
Average address span per update	915	Avg Span	376	Avg Span	370	Avg Span	1088
Average prefix size updated	23.71	Average prefix size	23.78	Average prefix size	23.80	Average prefix size	23.68
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /15 total	2	Prefix /15 announcements	0	Prefix /15 withdrawals	0	Prefix /15 path updates	2
Prefix /16 total	6	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	6
Prefix /17 total	4	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	4
Prefix /18 total	4	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	4
Prefix /19 total	10	Prefix /19 announcements	0	Prefix /19 withdrawals	0	Prefix /19 path updates	10
Prefix /20 total	26	Prefix /20 announcements	4	Prefix /20 withdrawals	3	Prefix /20 path updates	19
Prefix /21 total	36	Prefix /21 announcements	2	Prefix /21 withdrawals	3	Prefix /21 path updates	31
Prefix /22 total	135	Prefix /22 announcements	6	Prefix /22 withdrawals	7	Prefix /22 path updates	122
Prefix /23 total	153	Prefix /23 announcements	17	Prefix /23 withdrawals	7	Prefix /23 path updates	129
Prefix /24 total	1181	Prefix /24 announcements	203	Prefix /24 withdrawals	190	Prefix /24 path updates	788
Prefix /25 total	263	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	263
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	1	Prefix /32 announcements	0	Prefix /32 withdrawals	0	Prefix /32 path updates	1
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	0.49	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.65
Prefix /16 total	0.23	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.30
Prefix /17 total	0.25	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.33
Prefix /18 total	0.15	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.20
Prefix /19 total	0.21	Prefix /19 announcements	0.00	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.27
Prefix /20 total	0.30	Prefix /20 announcements	0.36	Prefix /20 withdrawals	0.30	Prefix /20 path updates	0.29
Prefix /21 total	0.36	Prefix /21 announcements	0.16	Prefix /21 withdrawals	0.26	Prefix /21 path updates	0.41
Prefix /22 total	0.63	Prefix /22 announcements	0.22	Prefix /22 withdrawals	0.28	Prefix /22 path updates	0.75
Prefix /23 total	0.79	Prefix /23 announcements	0.69	Prefix /23 withdrawals	0.31	Prefix /23 path updates	0.88
Prefix /24 total	1.08	Prefix /24 announcements	1.45	Prefix /24 withdrawals	1.50	Prefix /24 path updates	0.95
Prefix /25 total	185.08	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	244.40
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	0.00	Prefix /30 withdrawals	0.00	Prefix /30 path updates	0.00
Prefix /31 total	0.00	Prefix /31 announcements	100.00	Prefix /31 withdrawals	100.00	Prefix /31 path updates	100.00
Prefix /32 total	129.31	Prefix /32 announcements	0.00	Prefix /32 withdrawals	0.00	Prefix /32 path updates	170.76

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	1821.000	New Entries	232.000	Removed Entries	210.000	Updated Entries	1379.000
Address Span	1666689.000	Address Span	87296.000	Address Span	77824.000	Address Span	1501569.000
Average address span per update	915.000	Avg Span	376.000	Avg Span	370.000	Avg Span	1088.000
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	2.000	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	2.000
Prefix /16 update rate	6.000	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	6.000
Prefix /17 update rate	4.000	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	4.000
Prefix /18 update rate	4.000	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	4.000
Prefix /19 update rate	10.000	Prefix /19 announcements	0.000	Prefix /19 withdrawals	0.000	Prefix /19 path updates	10.000
Prefix /20 update rate	26.000	Prefix /20 announcements	4.000	Prefix /20 withdrawals	3.000	Prefix /20 path updates	19.000
Prefix /21 update rate	36.000	Prefix /21 announcements	2.000	Prefix /21 withdrawals	3.000	Prefix /21 path updates	31.000
Prefix /22 update rate	135.000	Prefix /22 announcements	6.000	Prefix /22 withdrawals	7.000	Prefix /22 path updates	122.000
Prefix /23 update rate	153.000	Prefix /23 announcements	17.000	Prefix /23 withdrawals	7.000	Prefix /23 path updates	129.000
Prefix /24 update rate	1181.000	Prefix /24 announcements	203.000	Prefix /24 withdrawals	190.000	Prefix /24 path updates	788.000
Prefix /25 update rate	263.000	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	263.000
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	1.000	Prefix /32 announcements	0.000	Prefix /32 withdrawals	0.000	Prefix /32 path updates	1.000

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	532	Origin Paths	75	NextHop Paths	140	Transit Paths	203	Paths	88	Paths	26
Report
/15 Tot	2	/15 Org	0	/15 Nxt	0	/15 Trn	0	/15 Fst	2	/15 Prp	0
/16 Tot	6	/16 Org	0	/16 Nxt	1	/16 Trn	0	/16 Fst	5	/16 Prp	0
/17 Tot	4	/17 Org	0	/17 Nxt	0	/17 Trn	0	/17 Fst	4	/17 Prp	0
/18 Tot	4	/18 Org	0	/18 Nxt	0	/18 Trn	1	/18 Fst	3	/18 Prp	0
/19 Tot	10	/19 Org	0	/19 Nxt	5	/19 Trn	0	/19 Fst	5	/19 Prp	0
/20 Tot	19	/20 Org	0	/20 Nxt	7	/20 Trn	1	/20 Fst	11	/20 Prp	0
/21 Tot	31	/21 Org	0	/21 Nxt	7	/21 Trn	2	/21 Fst	21	/21 Prp	1
/22 Tot	122	/22 Org	1	/22 Nxt	25	/22 Trn	24	/22 Fst	61	/22 Prp	11
/23 Tot	129	/23 Org	1	/23 Nxt	15	/23 Trn	18	/23 Fst	31	/23 Prp	64
/24 Tot	788	/24 Org	26	/24 Nxt	196	/24 Trn	172	/24 Fst	340	/24 Prp	54
/25 Tot	263	/25 Org	60	/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	1	/32 Org	0	/32 Nxt	1	/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	24	% AS's announcing span of /7	0.0003
AS's announcing span of /8	46	% AS's announcing span of /8	0.0006
AS's announcing span of /9	75	% AS's announcing span of /9	0.0010
AS's announcing span of /10	99	% AS's announcing span of /10	0.0013
AS's announcing span of /11	168	% AS's announcing span of /11	0.0022
AS's announcing span of /12	242	% AS's announcing span of /12	0.0032
AS's announcing span of /13	400	% AS's announcing span of /13	0.0054
AS's announcing span of /14	834	% AS's announcing span of /14	0.0112
AS's announcing span of /15	1681	% AS's announcing span of /15	0.0225
AS's announcing span of /16	1768	% AS's announcing span of /16	0.0237
AS's announcing span of /17	2429	% AS's announcing span of /17	0.0325
AS's announcing span of /18	3757	% AS's announcing span of /18	0.0503
AS's announcing span of /19	5070	% AS's announcing span of /19	0.0679
AS's announcing span of /20	7269	% AS's announcing span of /20	0.0973
AS's announcing span of /21	10387	% AS's announcing span of /21	0.1390
AS's announcing span of /22	13056	% AS's announcing span of /22	0.1748
AS's announcing span of /23	9168	% AS's announcing span of /23	0.1227
AS's announcing span of /24	18203	% AS's announcing span of /24	0.2436
AS's announcing span of /25	19	% 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.

AS Connectivity Report	Data
AS Adjacency Count	122117
Average AS Connectivity Degree (244234/75255)	3.2454
Average AS Connectivity IN:OUT Degree	0.1455
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	520347	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	503815	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	360518	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	360534	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 Sun Dec 10 14:01:08 2023 (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