routing stats
Philip Smith
pfs at cisco.com
Fri Sep 15 05:15:48 EDT 2000
Hi,
Some of you might be aware that I've been posting stats from the Internet
routing table to the AsiaPacific Operators list (apops at lists.apnic.net) and
to the RIPE Routing WG (routing-wg at ripe.net). I've also been producing
stats covering ARIN's region, but so far have not posted them anywhere
apart from the APNIC web site.
Basically I am examining the view of the Internet routing table as obtained
from NSPIXP2 in Tokyo, mostly for the benefit of the AP region's ISPs. At
the start of this year I extended it to cover the three RIR operating regions.
Would it be interesting/appropriate if I posted the American summary to
this list? It is no more intrusive than the CIDR Report which Tony Bates
posts on a weekly basis to NANOG, and gives what I believe is a view which
is more focused on the region covered by ARIN. I've included a sample
output at the end of this e-mail, fyi.
More information is displayed in graphical form on the APNIC web page,
specifically:
http://www.apnic.net/stats/bgp
best wishes!
philip
--
Americas and Southern Africa Report 15 Sep, 2000
Analysis Summary
----------------
BGP routing table entries examined: 88606
Origin ASes present in the Internet Routing Table: 8488
Origin ASes announcing only one prefix: 2868
Transit ASes present in the Internet Routing Table: 1158
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 17
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 1
Number of addresses announced to Internet: 1155310504
Equivalent to 68 /8s, 220 /16s and 163 /24s
Percentage of available address space announced: 31.2
Percentage of allocated address space announced: 61.1
Percentage of available address space allocated: 51.0
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 60482
Prefixes being announced from the ARIN address blocks: 41206
ARIN Region origin ASes present in the Internet Routing Table: 5124
ARIN Region origin ASes announcing only one prefix: 1424
ARIN Region transit ASes present in the Internet Routing Table: 554
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 162718893
Equivalent to 9 /8s, 178 /16s and 228 /24s
Percentage of available ARIN address space announced: 74.6
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407
ARIN Address Blocks 63/8, 64/7, 66/8, 199/8, 200/8, 204/6, 208/7 and 216/8
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2004 3396 UUNET Technologies, Inc.
1 929 4512 BBN Planet
7018 850 3002 AT&T
816 757 189 UUNET Canada4
2914 708 1336 Verio, Inc.
7046 700 525 UUNET Technologies, Inc.
1239 680 1585 Sprint ICM-Inria
3561 620 1535 Cable & Wireless USA
174 610 2741 PSINet Inc.
705 553 34 UUNET Technologies, Inc.
1785 553 786 Sprint ICM
3549 492 411 Frontier GlobalCenter
209 471 539 Qwest
271 467 380 BCnet Backbone
3908 444 277 Supernet, Inc.
3602 427 78 Sprint Canada
4293 417 63 Cable & Wireless USA
2548 414 520 Digital Express Group, Inc.
577 318 289 Bell Canada
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2004 3396 UUNET Technologies, Inc.
1 929 4512 BBN Planet
1221 907 975 Telstra
7018 850 3002 AT&T
816 757 189 UUNET Canada4
2914 708 1336 Verio, Inc.
7046 700 525 UUNET Technologies, Inc.
1239 680 1585 Sprint ICM-Inria
3561 620 1535 Cable & Wireless USA
174 610 2741 PSINet Inc.
705 553 34 UUNET Technologies, Inc.
1785 553 786 Sprint ICM
3549 492 411 Frontier GlobalCenter
209 471 539 Qwest
271 467 380 BCnet Backbone
2764 463 130 connect.com.au pty ltd
3908 444 277 Supernet, Inc.
3602 427 78 Sprint Canada
4293 417 63 Cable & Wireless USA
List of Illegal AS's (Global)
-----------------------------
Bad AS Designation Network Transit AS Description
64602 PRIVATE 63.236.57.0/24 209 Qwest
64512 PRIVATE 64.44.159.0/24 7309 The Virtual Marketin
64605 PRIVATE 208.47.206.0/24 209 Qwest
Advertised IANA Reserved Addresses
----------------------------------
Network Origin AS Description
220.10.56.0/24 3215 RAIN
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:4 /10:5 /11:9 /12:26
/13:56 /14:177 /15:289 /16:6632 /17:932 /18:1814
/19:5891 /20:3658 /21:3758 /22:5700 /23:7611 /24:51032
/25:248 /26:277 /27:85 /28:72 /29:98 /30:119
/31:0 /32:92
End of report
--------------------------------------------------------
Philip Smith ph: +61 7 3238 8200
Consulting Engineering, Office of the CTO, Cisco Systems
--------------------------------------------------------
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