	AS2 IPv6 BGP Table Data
	BGP data obtained from AS2. Report last updated at Thu May 15 20:45:04 2008 (Australian Eastern Time).		Other BGP Metrics

Active BGP entries (FIB)

Table Size Metrics

The trend of the size of the BGP Forwarding Table (FIB) and 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)	1274	Change in FIB Size	-3	Change (%)	-0.235
All BGP entries (RIB)	6789
RIB/FIB ratio (6789/1274)	5.3289
Valid entries	6789

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 (/64 equiv)	178305582366722
Total address space advertised (prefix)	16.6587
Percentage of IPv6 space advertised (178305582366722/18446744073709551615)	0.000967
Average address span	139957286002
Average address span (as prefix size)	26.9738
Average prefix length	36.6405

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	239	Specifics as % of FIB entries (239/1274)	18.7598
Specifics as % of address span (60069384455/178305582366722)	0.0337
Specifics where AS prepended Path matches aggregate	52	AS-P_Path-Match % (52/239)	21.76
AS Path matches aggregate	52	AS-Path-Match % (52/239)	21.7573
AS Origin matches aggregate	84	AS-Origin-Match % (84/239)	35.1464
Root Prefixes	1035
Root Prefix Tree Depth	(data)
Root Prefixes with depth 0	1033
Root Prefixes with depth 1	2

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	980	ASes visible in only one AS path	730
Origin only ASes	711	Origin ASs announced via a single AS path	684
Transit only ASes	32	Originating AS ATOM count	948
Mixed ASes	237	Originating AS ATOM compression	0.7441
Multi-Origin Prefixes	6
ASes originating a single prefix	821
Average entries per origin AS	1.3439	Maximum entries for an origin AS (AS33)	34
Average address range span for an origin AS	188086057348.8629
Maximum address range for an origin AS (AS5511)	35188667056128
Maximum address range (prefix length) for an origin AS (AS5511)	19.00
Average address range span for an origin AS (pfx length)	26.5474

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	5515	Unique AS prepended Paths	5517
AS Paths used in FIB	1000	AS Paths using prepending	118
AS paths associated with a single FIB entry	893	AS Paths using private ASs	9
Average AS path length	4.4553	Maximum AS Path length	14
Average address weighted AS path length	3.4675	Maximum prepended AS Path length	14
Average entries per AS Path	0.2310	Average entries per FIB AS Path	1.2740
AS Paths per origin AS	5.8175	FIB AS Paths per origin AS	1.0549
AS PATH ATOM compression	0.7849

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 /19	2	% Prefix /19	0.16
Prefix count /20	4	% Prefix /20	0.31
Prefix count /21	3	% Prefix /21	0.24
Prefix count /22	1	% Prefix /22	0.08
Prefix count /24	1	% Prefix /24	0.08
Prefix count /26	5	% Prefix /26	0.39
Prefix count /27	3	% Prefix /27	0.24
Prefix count /28	6	% Prefix /28	0.47
Prefix count /30	2	% Prefix /30	0.16
Prefix count /31	1	% Prefix /31	0.08
Prefix count /32	803	% Prefix /32	63.03
Prefix count /33	7	% Prefix /33	0.55
Prefix count /34	12	% Prefix /34	0.94
Prefix count /35	40	% Prefix /35	3.14
Prefix count /36	6	% Prefix /36	0.47
Prefix count /40	27	% Prefix /40	2.12
Prefix count /42	2	% Prefix /42	0.16
Prefix count /44	7	% Prefix /44	0.55
Prefix count /45	2	% Prefix /45	0.16
Prefix count /46	1	% Prefix /46	0.08
Prefix count /47	4	% Prefix /47	0.31
Prefix count /48	324	% Prefix /48	25.43
Prefix count /52	1	% Prefix /52	0.08
Prefix count /56	1	% Prefix /56	0.08
Prefix count /64	9	% Prefix /64	0.71

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 /19	2	% Prefix /19	0.24
Prefix count /20	4	% Prefix /20	0.48
Prefix count /21	3	% Prefix /21	0.36
Prefix count /22	1	% Prefix /22	0.12
Prefix count /24	1	% Prefix /24	0.12
Prefix count /26	5	% Prefix /26	0.61
Prefix count /27	3	% Prefix /27	0.36
Prefix count /28	6	% Prefix /28	0.73
Prefix count /30	2	% Prefix /30	0.24
Prefix count /32	798	% Prefix /32	96.73
Prefix count /33	2	% Prefix /33	0.00
Prefix count /34	6	% Prefix /34	0.00
Prefix count /35	20	% Prefix /35	0.00
Prefix count /44	3	% Prefix /44	0.00
Prefix count /46	1	% Prefix /46	0.00
Prefix count /47	2	% Prefix /47	0.00
Prefix count /48	174	% Prefix /48	0.00
Prefix count /64	2	% Prefix /64	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	536870912	% Addresses at AS distance 0	0
Addresses at AS distance 1	17611514642689	% Addresses at AS distance 1	9
Addresses at AS distance 2	79642671910916	% Addresses at AS distance 2	44
Addresses at AS distance 3	61842917949444	% Addresses at AS distance 3	34
Addresses at AS distance 4	18952239644672	% Addresses at AS distance 4	10
Addresses at AS distance 5	245938782208	% Addresses at AS distance 5	0
Addresses at AS distance 6	35471163392	% Addresses at AS distance 6	0
Addresses at AS distance 7	34360393728	% Addresses at AS distance 7	0
Addresses at AS distance 8	393216	% Addresses at AS distance 8	0
Addresses at AS distance 9	0	% Addresses at AS distance 9	0
Addresses at AS distance 10	0	% Addresses at AS distance 10	0
Addresses at AS distance 11	0	% Addresses at AS distance 11	0
Addresses at AS distance 12	0	% Addresses at AS distance 12	0
Addresses at AS distance 13	0	% Addresses at AS distance 13	0

Cumulative Address by AS distance	(data)	Cumulative % Address by AS distance	(data)
Addresses reachable within 0 AS hops	536870912	% Addresses reachable within 0 AS hops	0
Addresses reachable within 1 AS hops	17612051513601	% Addresses reachable within 1 AS hops	9
Addresses reachable within 2 AS hops	97254723424517	% Addresses reachable within 2 AS hops	54
Addresses reachable within 3 AS hops	159097641373961	% Addresses reachable within 3 AS hops	89
Addresses reachable within 4 AS hops	178049881018633	% Addresses reachable within 4 AS hops	99
Addresses reachable within 5 AS hops	178295819800841	% Addresses reachable within 5 AS hops	99
Addresses reachable within 6 AS hops	178331290964233	% Addresses reachable within 6 AS hops	99
Addresses reachable within 7 AS hops	178365651357961	% Addresses reachable within 7 AS hops	99
Addresses reachable within 8 AS hops	178365651751177	% Addresses reachable within 8 AS hops	100
Addresses reachable within 9 AS hops	178365651751177	% Addresses reachable within 9 AS hops	100
Addresses reachable within 10 AS hops	178365651751177	% Addresses reachable within 10 AS hops	100
Addresses reachable within 11 AS hops	178365651751177	% Addresses reachable within 11 AS hops	100
Addresses reachable within 12 AS hops	178365651751177	% Addresses reachable within 12 AS hops	100
Addresses reachable within 13 AS hops	178365651751177	% 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	7	% ASes reachable at 1 AS hops	0
ASes reachable at 2 AS hops	109	% ASes reachable at 2 AS hops	11
ASes reachable at 3 AS hops	493	% ASes reachable at 3 AS hops	50
ASes reachable at 4 AS hops	245	% ASes reachable at 4 AS hops	25
ASes reachable at 5 AS hops	81	% ASes reachable at 5 AS hops	8
ASes reachable at 6 AS hops	26	% ASes reachable at 6 AS hops	2
ASes reachable at 7 AS hops	13	% ASes reachable at 7 AS hops	1
ASes reachable at 8 AS hops	5	% ASes reachable at 8 AS hops	0
ASes reachable at 9 AS hops	0	% ASes reachable at 9 AS hops	0
ASes reachable at 10 AS hops	0	% 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
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
ASes reachable by 1 AS hops	8	Cumulative % ASes by AS hops 1	0
ASes reachable by 2 AS hops	117	Cumulative % ASes by AS hops 2	11
ASes reachable by 3 AS hops	610	Cumulative % ASes by AS hops 3	62
ASes reachable by 4 AS hops	855	Cumulative % ASes by AS hops 4	87
ASes reachable by 5 AS hops	936	Cumulative % ASes by AS hops 5	95
ASes reachable by 6 AS hops	962	Cumulative % ASes by AS hops 6	98
ASes reachable by 7 AS hops	975	Cumulative % ASes by AS hops 7	99
ASes reachable by 8 AS hops	980	Cumulative % ASes by AS hops 8	100
ASes reachable by 9 AS hops	980	Cumulative % ASes by AS hops 9	100
ASes reachable by 10 AS hops	980	Cumulative % ASes by AS hops 10	100
ASes reachable by 11 AS hops	980	Cumulative % ASes by AS hops 11	100
ASes reachable by 12 AS hops	980	Cumulative % ASes by AS hops 12	100
ASes reachable by 13 AS hops	980	Cumulative % ASes by AS hops 13	100

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	7321	New Entries	810	Removed Entries	5524	Updated Entries	987
		Report		Report		Report
Address Span	61374148	Address Span	2	Address Span	1401816107	Address Span	2954525335
Average address span per update	8383	Avg Span	0	Avg Span	253768	Avg Span	2993440
Average prefix size updated	45.64	Average prefix size	128.76	Average prefix size	35.24	Average prefix size	35.59
Per-Prefix updates	(data)	Prefix announcements	(data)	Prefix withdrawals	(data)	Prefix path updates	(data)
Prefix /16 total	4	Prefix /16 announcements	0	Prefix /16 withdrawals	4	Prefix /16 path updates	0
Prefix /19 total	10	Prefix /19 announcements	0	Prefix /19 withdrawals	9	Prefix /19 path updates	1
Prefix /20 total	24	Prefix /20 announcements	0	Prefix /20 withdrawals	20	Prefix /20 path updates	4
Prefix /21 total	16	Prefix /21 announcements	0	Prefix /21 withdrawals	14	Prefix /21 path updates	2
Prefix /22 total	6	Prefix /22 announcements	0	Prefix /22 withdrawals	5	Prefix /22 path updates	1
Prefix /24 total	6	Prefix /24 announcements	0	Prefix /24 withdrawals	5	Prefix /24 path updates	1
Prefix /26 total	29	Prefix /26 announcements	0	Prefix /26 withdrawals	24	Prefix /26 path updates	5
Prefix /27 total	17	Prefix /27 announcements	0	Prefix /27 withdrawals	15	Prefix /27 path updates	2
Prefix /28 total	36	Prefix /28 announcements	0	Prefix /28 withdrawals	30	Prefix /28 path updates	6
Prefix /30 total	11	Prefix /30 announcements	0	Prefix /30 withdrawals	10	Prefix /30 path updates	1
Prefix /31 total	5	Prefix /31 announcements	0	Prefix /31 withdrawals	5	Prefix /31 path updates	0
Prefix /32 total	4590	Prefix /32 announcements	2	Prefix /32 withdrawals	3897	Prefix /32 path updates	691
Prefix /33 total	36	Prefix /33 announcements	0	Prefix /33 withdrawals	32	Prefix /33 path updates	4
Prefix /34 total	63	Prefix /34 announcements	0	Prefix /34 withdrawals	56	Prefix /34 path updates	7
Prefix /35 total	222	Prefix /35 announcements	0	Prefix /35 withdrawals	185	Prefix /35 path updates	37
Prefix /36 total	34	Prefix /36 announcements	0	Prefix /36 withdrawals	30	Prefix /36 path updates	4
Prefix /40 total	90	Prefix /40 announcements	0	Prefix /40 withdrawals	75	Prefix /40 path updates	15
Prefix /42 total	9	Prefix /42 announcements	0	Prefix /42 withdrawals	9	Prefix /42 path updates	0
Prefix /44 total	35	&

AS2 IPv6 BGP Table Data