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AS65000 BGP Routing Table Analysis Report


	BGP data obtained from AS65000 Report last updated at Sun Dec 22 06:01:13 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)	993668	Change in FIB Size	-23	Change (%)	-0.002
All BGP entries (RIB)	2947439
RIB/FIB ratio (2947439/993668)	2.9662
Valid entries	2947439
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)	3118221312
Total address space advertised (prefix length)	0.46192382
Percentage of IPv4 space advertised (3118221312/4294967295)	72.601748
Total address space advertised - corrected to 19 /8s	(data)
Average address span	3138
Average address span (as prefix size)	20.3844
Average prefix length	22.8932

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	525772	Specifics as % of FIB entries (525772/993668)	52.9122
Specifics as % of address span (1152709993/3118221312)	36.9669
Specifics where AS prepended Path matches aggregate	224172	AS-P_Path-Match % (224172/525772)	42.64
AS Path matches aggregate	243321	AS-Path-Match % (243321/525772)	46.2788
AS Origin matches aggregate	405066	AS-Origin-Match % (405066/525772)	77.0421
Root Prefixes	467896
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	410666
Root Prefixes with depth 1	46121
Root Prefixes with depth 2	8997
Root Prefixes with depth 3	1596
Root Prefixes with depth 4	400
Root Prefixes with depth 5	82
Root Prefixes with depth 6	27
Root Prefixes with depth 7	6
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	76705	ASes visible in only one AS path	45867
Origin only ASes	65398	Origin ASs announced via a single AS path	45335
Transit only ASes	549	Originating AS ATOM count	76156
Mixed ASes	10758	Originating AS ATOM compression	0.0766
Multi-Origin Prefixes	1608
ASes originating a single prefix	26708
Average FIB entries per Origin AS	13.0478	Maximum entries for an origin AS (AS7713)	3694
Average address range span for an origin AS	40945.1824	Maximum address range for an origin AS (AS749)	228418048

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	248602	Unique AS prepended Paths	267719
AS Paths used in FIB	127935	AS Paths using prepending	70451
AS paths associated with a single FIB entry	60792	AS Paths using private ASs	52
Average AS path length	5.2664	Number of Prefixes with Selected AS Prepending Paths	149590
Maximum AS Path length	14	Number of Prefixes with AS Prepending Paths	149590
Average address weighted AS path length	6.6712	Maximum prepended AS Path length	133
Average entries per AS Path	3.9970	Average entries per FIB AS Path	7.7670
AS Paths per origin AS	3.2644	FIB AS Paths per origin AS	1.6799
AS PATH ATOM compression	0.1288

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	42	% Prefix /10	0.00
Prefix count /11	93	% Prefix /11	0.01
Prefix count /12	311	% Prefix /12	0.03
Prefix count /13	592	% Prefix /13	0.06
Prefix count /14	1232	% Prefix /14	0.12
Prefix count /15	2185	% Prefix /15	0.22
Prefix count /16	14022	% Prefix /16	1.41
Prefix count /17	8377	% Prefix /17	0.84
Prefix count /18	13983	% Prefix /18	1.41
Prefix count /19	25117	% Prefix /19	2.53
Prefix count /20	45706	% Prefix /20	4.60
Prefix count /21	53399	% Prefix /21	5.37
Prefix count /22	113857	% Prefix /22	11.46
Prefix count /23	105103	% Prefix /23	10.58
Prefix count /24	608906	% Prefix /24	61.28
Prefix count /25	690	% 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	17	% 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	42	% Prefix /10	0.01
Prefix count /11	86	% Prefix /11	0.02
Prefix count /12	274	% Prefix /12	0.06
Prefix count /13	494	% Prefix /13	0.11
Prefix count /14	1046	% Prefix /14	0.22
Prefix count /15	1678	% Prefix /15	0.36
Prefix count /16	11008	% Prefix /16	2.35
Prefix count /17	4424	% Prefix /17	0.95
Prefix count /18	6872	% Prefix /18	1.47
Prefix count /19	14798	% Prefix /19	3.16
Prefix count /20	18954	% Prefix /20	4.05
Prefix count /21	21958	% Prefix /21	4.69
Prefix count /22	58606	% Prefix /22	12.53
Prefix count /23	41526	% Prefix /23	8.88
Prefix count /24	286095	% Prefix /24	61.14
Prefix count /25	10	% 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	253087906	% Addresses at AS distance 2	5.9
Addresses at AS distance 3	1175614727	% Addresses at AS distance 3	27.5
Addresses at AS distance 4	1974822688	% Addresses at AS distance 4	46.2
Addresses at AS distance 5	654767648	% Addresses at AS distance 5	15.3
Addresses at AS distance 6	174359040	% Addresses at AS distance 6	4.1
Addresses at AS distance 7	27444224	% Addresses at AS distance 7	0.6
Addresses at AS distance 8	10066560	% Addresses at AS distance 8	0.2
Addresses at AS distance 9	599552	% Addresses at AS distance 9	0.0
Addresses at AS distance 10	88832	% Addresses at AS distance 10	0.0
Addresses at AS distance 11	8960	% Addresses at AS distance 11	0.0
Addresses at AS distance 12	256	% Addresses at AS distance 12	0.0
Addresses at AS distance 13	256	% 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	253158562	% Addresses reachable within 2 AS hops	5
Addresses reachable within 3 AS hops	1428773289	% Addresses reachable within 3 AS hops	33
Addresses reachable within 4 AS hops	3403595977	% Addresses reachable within 4 AS hops	79
Addresses reachable within 5 AS hops	4058363625	% Addresses reachable within 5 AS hops	95
Addresses reachable within 6 AS hops	4232722665	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	4260166889	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	4270233449	% Addresses reachable within 8 AS hops	99
Addresses reachable within 9 AS hops	4270833001	% Addresses reachable within 9 AS hops	99
Addresses reachable within 10 AS hops	4270921833	% Addresses reachable within 10 AS hops	99
Addresses reachable within 11 AS hops	4270930793	% Addresses reachable within 11 AS hops	99
Addresses reachable within 12 AS hops	4270931049	% Addresses reachable within 12 AS hops	99
Addresses reachable within 13 AS hops	4270931305	% 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	361	% ASes reachable at 2 AS hops	0
ASes reachable at 3 AS hops	9430	% ASes reachable at 3 AS hops	12
ASes reachable at 4 AS hops	29108	% ASes reachable at 4 AS hops	37
ASes reachable at 5 AS hops	28237	% ASes reachable at 5 AS hops	36
ASes reachable at 6 AS hops	7570	% ASes reachable at 6 AS hops	9
ASes reachable at 7 AS hops	1488	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	398	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	92	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	16	% ASes reachable at 10 AS hops	0
ASes reachable at 11 AS hops	2	% 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	364	Cumulative % ASes by AS hops 2	0.5
ASes reachable by 3 AS hops	9794	Cumulative % ASes by AS hops 3	12.8
ASes reachable by 4 AS hops	38902	Cumulative % ASes by AS hops 4	50.7
ASes reachable by 5 AS hops	67139	Cumulative % ASes by AS hops 5	87.5
ASes reachable by 6 AS hops	74709	Cumulative % ASes by AS hops 6	97.4
ASes reachable by 7 AS hops	76197	Cumulative % ASes by AS hops 7	99.3
ASes reachable by 8 AS hops	76595	Cumulative % ASes by AS hops 8	99.9
ASes reachable by 9 AS hops	76687	Cumulative % ASes by AS hops 9	100.0
ASes reachable by 10 AS hops	76703	Cumulative % ASes by AS hops 10	100.0
ASes reachable by 11 AS hops	76705	Cumulative % ASes by AS hops 11	100.0
ASes reachable by 12 AS hops	76705	Cumulative % ASes by AS hops 12	100.0
ASes reachable by 13 AS hops	76705	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	7938	New Entries	98	Removed Entries	127	Updated Entries	7713
		Report		Report		Report
Address Span	7652225	Address Span	77569	Address Span	51968	Address Span	7522688
Average address span per update	963	Avg Span	791	Avg Span	409	Avg Span	975
Average prefix size updated	23.31	Average prefix size	23.49	Average prefix size	23.70	Average prefix size	23.30
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	11	Prefix /16 announcements	0	Prefix /16 withdrawals	0	Prefix /16 path updates	11
Prefix /17 total	26	Prefix /17 announcements	0	Prefix /17 withdrawals	0	Prefix /17 path updates	26
Prefix /18 total	33	Prefix /18 announcements	0	Prefix /18 withdrawals	0	Prefix /18 path updates	33
Prefix /19 total	124	Prefix /19 announcements	4	Prefix /19 withdrawals	0	Prefix /19 path updates	120
Prefix /20 total	209	Prefix /20 announcements	3	Prefix /20 withdrawals	0	Prefix /20 path updates	206
Prefix /21 total	275	Prefix /21 announcements	2	Prefix /21 withdrawals	9	Prefix /21 path updates	264
Prefix /22 total	995	Prefix /22 announcements	3	Prefix /22 withdrawals	2	Prefix /22 path updates	990
Prefix /23 total	976	Prefix /23 announcements	14	Prefix /23 withdrawals	7	Prefix /23 path updates	955
Prefix /24 total	5049	Prefix /24 announcements	71	Prefix /24 withdrawals	109	Prefix /24 path updates	4869
Prefix /25 total	237	Prefix /25 announcements	0	Prefix /25 withdrawals	0	Prefix /25 path updates	237
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	1	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	0.11	Prefix /15 announcements	0.00	Prefix /15 withdrawals	0.00	Prefix /15 path updates	0.12
Prefix /16 total	0.10	Prefix /16 announcements	0.00	Prefix /16 withdrawals	0.00	Prefix /16 path updates	0.10
Prefix /17 total	0.39	Prefix /17 announcements	0.00	Prefix /17 withdrawals	0.00	Prefix /17 path updates	0.40
Prefix /18 total	0.30	Prefix /18 announcements	0.00	Prefix /18 withdrawals	0.00	Prefix /18 path updates	0.30
Prefix /19 total	0.62	Prefix /19 announcements	1.61	Prefix /19 withdrawals	0.00	Prefix /19 path updates	0.62
Prefix /20 total	0.57	Prefix /20 announcements	0.67	Prefix /20 withdrawals	0.00	Prefix /20 path updates	0.58
Prefix /21 total	0.64	Prefix /21 announcements	0.38	Prefix /21 withdrawals	1.32	Prefix /21 path updates	0.64
Prefix /22 total	1.09	Prefix /22 announcements	0.27	Prefix /22 withdrawals	0.14	Prefix /22 path updates	1.12
Prefix /23 total	1.16	Prefix /23 announcements	1.35	Prefix /23 withdrawals	0.52	Prefix /23 path updates	1.17
Prefix /24 total	1.04	Prefix /24 announcements	1.18	Prefix /24 withdrawals	1.40	Prefix /24 path updates	1.03
Prefix /25 total	43.00	Prefix /25 announcements	0.00	Prefix /25 withdrawals	0.00	Prefix /25 path updates	44.25
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	7.36	Prefix /32 announcements	596.44	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	7935.795	New Entries	97.973	Removed Entries	126.965	Updated Entries	7710.858
Address Span	7650100.000	Address Span	77547.461	Address Span	51953.570	Address Span	7520599.000
Average address span per update	962.733	Avg Span	790.780	Avg Span	408.886	Avg Span	974.729
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	1.999	Prefix /15 announcements	0.000	Prefix /15 withdrawals	0.000	Prefix /15 path updates	1.999
Prefix /16 update rate	10.997	Prefix /16 announcements	0.000	Prefix /16 withdrawals	0.000	Prefix /16 path updates	10.997
Prefix /17 update rate	25.993	Prefix /17 announcements	0.000	Prefix /17 withdrawals	0.000	Prefix /17 path updates	25.993
Prefix /18 update rate	32.991	Prefix /18 announcements	0.000	Prefix /18 withdrawals	0.000	Prefix /18 path updates	32.991
Prefix /19 update rate	123.966	Prefix /19 announcements	3.999	Prefix /19 withdrawals	0.000	Prefix /19 path updates	119.967
Prefix /20 update rate	208.942	Prefix /20 announcements	2.999	Prefix /20 withdrawals	0.000	Prefix /20 path updates	205.943
Prefix /21 update rate	274.924	Prefix /21 announcements	1.999	Prefix /21 withdrawals	8.998	Prefix /21 path updates	263.927
Prefix /22 update rate	994.724	Prefix /22 announcements	2.999	Prefix /22 withdrawals	1.999	Prefix /22 path updates	989.725
Prefix /23 update rate	975.729	Prefix /23 announcements	13.996	Prefix /23 withdrawals	6.998	Prefix /23 path updates	954.735
Prefix /24 update rate	5047.598	Prefix /24 announcements	70.980	Prefix /24 withdrawals	108.970	Prefix /24 path updates	4867.648
Prefix /25 update rate	236.934	Prefix /25 announcements	0.000	Prefix /25 withdrawals	0.000	Prefix /25 path updates	236.934
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	1.000	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

1978

350

184

1362

Report

/15 Tot

/15 Org

/15 Nxt

/15 Trn

/15 Fst

/15 Prp

/16 Tot

/16 Org

/16 Nxt

/16 Trn

/16 Fst

/16 Prp

/17 Tot

/17 Org

/17 Nxt

/17 Trn

/17 Fst

/17 Prp

/18 Tot

/18 Org

/18 Nxt

/18 Trn

/18 Fst

/18 Prp

/19 Tot

120

/19 Org

/19 Nxt

/19 Trn

/19 Fst

/19 Prp

/20 Tot

206

/20 Org

/20 Nxt

103

/20 Trn

/20 Fst

/20 Prp

/21 Tot

264

/21 Org

/21 Nxt

115

/21 Trn

145

/21 Fst

/21 Prp

/22 Tot

990

/22 Org

/22 Nxt

257

/22 Trn

681

/22 Fst

/22 Prp

/23 Tot

955

/23 Org

/23 Nxt

252

/23 Trn

669

/23 Fst

/23 Prp

/24 Tot

4869

/24 Org

/24 Nxt

1990

/24 Trn

2607

/24 Fst

245

/24 Prp

/25 Tot

237

/25 Org

/25 Nxt

/25 Trn

/25 Fst

160

/25 Prp

/26 Tot

/26 Org

/26 Nxt

/26 Trn

/26 Fst

/26 Prp

/27 Tot

/27 Org

/27 Nxt

/27 Trn

/27 Fst

/27 Prp

/28 Tot

/28 Org

/28 Nxt

/28 Trn

/28 Fst

/28 Prp

/29 Tot

/29 Org

/29 Nxt

/29 Trn

/29 Fst

/29 Prp

/30 Tot

/30 Org

/30 Nxt

/30 Trn

/30 Fst

/30 Prp

/31 Tot

/31 Org

/31 Nxt

/31 Trn

/31 Fst

/31 Prp

/32 Tot

/32 Org

/32 Nxt

/32 Trn

/32 Fst

/32 Prp

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	22	% 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	73	% AS's announcing span of /9	0.0010
AS's announcing span of /10	105	% AS's announcing span of /10	0.0014
AS's announcing span of /11	169	% AS's announcing span of /11	0.0022
AS's announcing span of /12	238	% AS's announcing span of /12	0.0031
AS's announcing span of /13	403	% AS's announcing span of /13	0.0053
AS's announcing span of /14	832	% AS's announcing span of /14	0.0109
AS's announcing span of /15	1684	% AS's announcing span of /15	0.0221
AS's announcing span of /16	1752	% AS's announcing span of /16	0.0230
AS's announcing span of /17	2469	% AS's announcing span of /17	0.0325
AS's announcing span of /18	3726	% AS's announcing span of /18	0.0490
AS's announcing span of /19	5130	% AS's announcing span of /19	0.0674
AS's announcing span of /20	7547	% AS's announcing span of /20	0.0992
AS's announcing span of /21	10513	% AS's announcing span of /21	0.1382
AS's announcing span of /22	12774	% AS's announcing span of /22	0.1679
AS's announcing span of /23	9722	% AS's announcing span of /23	0.1278
AS's announcing span of /24	18839	% AS's announcing span of /24	0.2476
AS's announcing span of /25	18	% 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.

AS Connectivity Report	Data
AS Adjacency Count	127630
Average AS Connectivity Degree (255260/76705)	3.3278
Average AS Connectivity IN:OUT Degree	0.1533
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	559205	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Path	543592	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Aggregation using AS Origin	372368	Report (sort by %reduction)	Report (sort by reduction)	BGP Table
Maximal Aggregation	372394	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 22 06:01:13 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