Bad routes update

Masaki Hirabaru masaki@merit.edu
Tue, 03 Aug 1999 13:38:30 -0400


I recently updated our routing report. Let me explain some on
this since it's intended to help hardening efforts on 6bone.

1) I added availability in most routes. For example, the route is
seen in total 6 hours a day, the availability will be 25%. If
there is a path that's availability is close to 100% but some of
alternative paths are flapping, it probably would be OK in terms
of the stability of the prefix.

2) I added a check of AS numbers. 

<< Reserved, Private, or Invalid AS Numbers:
<< Format: AS-Path (Bad-AS-Numbers -- Availability)
<< --------------------------------
<<   7610 1849 1103 65502 (65502 -- 100%)
<<   7610 1849 786 1103 65502 2839 5609 1225 237 2500 2500 2500 109 4608 (65502 -- 42%)

3) This check may be too restrictive (if the sites are intended
   to do so.)

<< Prefixes from Different Origin AS:
<< Format: Prefix path AS-Path (Origin-AS -- Availability)
<< --------------------------------
<<   AMS-IX (3ffe:3000::/24) path 1225 1849 1890 (NLNET -- 42%)
<<   AMS-IX (3ffe:3000::/24) path 2839 5623 (ATT-LABS-EUROPE -- 99%)
<<   VIAGENIE (3ffe:b00::/24) path 10566 (VIAGENIE -- 100%)
<<  VIAGENIE (3ffe:b00::/24) path 7081 293 6509 ( -- 46%)

Basically, our report follows the 6bone routing RFC and the new
hardening draft being discussed here.

--
Masaki

>> From: owner-6bone-routing-report@merit.edu
>> Subject: 08/02/99 6Bone Routing Report
>> Date: Tue, 3 Aug 1999 02:28:34 -0400 (EDT)
>> Message-ID: <199908030628.CAA22524@zounds.merit.net>
>>
>> Subject: 08/02/99 6Bone Routing Report
>> From: owner-6bone-routing-report@merit.edu
>> To: 6bone-routing-report@merit.edu
>> Date: Tue, 3 Aug 1999 02:28:34 -0400 (EDT)
>> 
>> See http://www.merit.edu/ipma for a more detailed report on routing 
>> problems and recommendations on ways service providers can limit the 
>> spread of invalid routing information.
>> Send comments and questions to ipma-support@merit.edu
>> 
>> To unsubscribe from this list, send mail to 
>>     6bone-routing-report-request@merit.edu.
>> A hypermail archive is available at
>>     http://www.merit.net/mail.archives/html/6bone-routing-report/
>> 
>> Also see http://www.caida.org for more information about Internet 
>> statistics collection research efforts.
>> 
>> ---------------------------------------------
>> This report is for 08/02/99, peering with
>>   VIAGENIE (AS10566)  CISCO (AS109)  IDIR (AS11264)  CICNET (AS1225)  WIDE (AS2500)  SICS (AS2839)  TELEBIT (AS3263)  ETRI (AS3559)  CERNET (AS4538)  EWD-3COM (AS561)  MSR-REDMOND (AS5761)  UUNET-US (AS704)  CAIRN (AS7081)  NUS-IRDU (AS7610)
>> ---------------------------------------------
>> 
>> Size of 6Bone Routing Table:
>> 	Max = 202, Min = 53, Average = 201
>> 	74 Unique Autonomous System (AS) numbers
>> 
>> BGP4+ Traffic Summary:  
>> 	Announcements = 235874    Withdraws = 15683   Unique Routes = 92
>> 
>> Reserved, Private, or Invalid AS Numbers:
>> Format: AS-Path (Bad-AS-Numbers -- Availability)
>> --------------------------------
>>   7610 1849 1103 65502 (65502 -- 100%)
>>   7610 1849 786 1103 65502 2839 5609 1225 237 2500 2500 2500 109 4608 (65502 -- 42%)
>> 
>> Non-6Bone Prefixes (outside of 3ffe::/16):
>> Format: Prefix path AS-Path (Origin-AS -- Availability)
>> --------------------------------
>>   0000::/0 path 1225 33 109 237 5761 (MSR-REDMOND -- 0%)
>>   1000::/3 path 1225 33 109 237 5761 (MSR-REDMOND -- 0%)
>>   2010::/16 path 5761 (MSR-REDMOND -- 100%)
>> 
>> Poorly Aggregated Prefixes (>24 in 3ffe:0000::/17 or >28 in 3ffe:8000::/17):
>> Format: Prefix path AS-Path (Origin-AS -- Availability)
>> --------------------------------
>>   STUBA (3ffe:2200::/24) had 7 route(s)
>>     3ffe:2280:4:2::/64 path 109 3462 3263 2852 (CESNET -- 97%)
>>     3ffe:2280:4:3::/64 path 109 3462 3263 2852 (CESNET -- 97%)
>>     3ffe:2200:0:8007::/64 path 109 3462 3263 2852 (CESNET -- 97%)
>>     3ffe:2280:4:5::/64 path 109 3462 3263 2852 (CESNET -- 97%)
>>     3ffe:2280:4:6::/64 path 109 3462 3263 2852 (CESNET -- 97%)
>>     3ffe:2280:4:601::/64 path 109 3462 3263 2852 (CESNET -- 97%)
>>     3ffe:2280:3::/48 path 2839 1849 786 5623 222 ( -- 99%)
>>     3ffe:2280:3::/48 path 7610 1849 1103 65502 ( -- 57%)
>> 
>>   CICNET (3ffe:900::/24) had 3 route(s)
>>     3ffe:900:1::/48 path 1225 1312 (LORE/VT -- 100%)
>>     3ffe:900:2::/48 path 1225 3899 (CHICO -- 100%)
>>     3ffe:902::/32 path 1225 8664 (ICM-PL -- 99%)
>> 
>>   SMS (3ffe:2600::/24) had 3 route(s)
>>     3ffe:2610:2::/48 path 2839 3274 8432 (TF-INET-DEV -- 97%)
>>     3ffe:2610:5::/48 path 2839 3274 5469 (AHLSTROM -- 97%)
>>     3ffe:2620::/32 path 2839 1741 (FUNET/OTOL -- 79%)
>> 
>>   UUNET-UK (3ffe:1100::/24) had 2 route(s)
>>     3ffe:1108:40a::/48 path 1225 4556 5539 (SPACENET-DE -- 100%)
>>     3ffe:1108:1400::/40 path 704 (UUNET-US -- 100%)
>> 
>>   SWITCH (3ffe:2000::/24) had 2 route(s)
>>     3ffe:202a:1::/64 path 10566 1930 559 1836 (SIMULTAN -- 99%)
>>     3ffe:2024:1::/48 path 10566 1930 559 1205 (TK-LINZ/JKU-LINZ -- 99%)
>> 
>>   GRNET (3ffe:2d00::/24) had 2 route(s)
>>     3ffe:2d00:3::/48 path 1225 48 1752 5408 8643 (UOA -- 95%)
>>     3ffe:2d00:2::/48 path 1225 48 1752 5408 3323 (NTUA -- 99%)
>> 
>>   SPRINT (3ffe:2900::/24) had 1 route(s)
>>     3ffe:2900:5::/48 path 1225 1312 (LORE/VT -- 100%)
>> 
>>   SICS (3ffe:200::/24) had 1 route(s)
>>     3ffe:200:2::/48 path 7610 1849 1103 65502 ( -- 57%)
>> 
>>   JANET (3ffe:2100::/24) had 1 route(s)
>>     3ffe:2100:1:17::/64 path 1225 1275 (JOIN -- 99%)
>> 
>>   VBNS (3ffe:2800::/24) had 1 route(s)
>>     3ffe:2802::/32 path 1225 1312 (LORE/VT -- 100%)
>> 
>>   JOIN (3ffe:400::/24) had 1 route(s)
>>     3ffe:400:1c0::/48 path 1225 48 8319 (REGIO-DE -- 99%)
>> 
>>   NTT-ECL (3ffe:1800::/24) had 1 route(s)
>>     3ffe:1810::/64 path 1225 1849 5623 1103 2839 224 4697 (NTT-ECL -- 57%)
>> 
>>   ATT-LABS-EUROPE (3ffe:1d00::/24) had 1 route(s)
>>     3ffe:1d01:3::/48 path 2839 1849 786 1103 222 ( -- 99%)
>>     3ffe:1d01:3::/48 path 7610 1849 1103 65502 ( -- 57%)
>> 
>>   UNI-C (3ffe:1400::/24) had 1 route(s)
>>     3ffe:1402:1:1::/64 path 1225 1849 5539 1273 (ECRC -- 99%)
>> 
>>   NRL (3ffe:f00::/24) had 1 route(s)
>>     3ffe:f00:2::/48 path 1225 48 11261 (ASCI -- 100%)
>> 
>>   INR (3ffe:2400::/24) had 1 route(s)
>>     3ffe:2401::/32 path 109 2895 2118 (STC-IPNG -- 95%)
>> 
>>   CISCO (3ffe:c00::/24) had 1 route(s)
>>     3ffe:c00:800f::/48 path 7610 1849 786 1103 65502 2839 5609 1225 237 2500 2500 2500 109 4608 (APNIC -- 42%)
>> 
>> Prefixes from Different Origin AS:
>> Format: Prefix path AS-Path (Origin-AS -- Availability)
>> --------------------------------
>>   AMS-IX (3ffe:3000::/24) path 1225 1849 1890 (NLNET -- 42%)
>>   AMS-IX (3ffe:3000::/24) path 2839 5623 (ATT-LABS-EUROPE -- 99%)
>>   VIAGENIE (3ffe:b00::/24) path 10566 (VIAGENIE -- 100%)
>>   VIAGENIE (3ffe:b00::/24) path 7081 293 6509 ( -- 46%)
>> 
>> The Top Five Most Active Prefixes:
>> Format: AS-Path (Announce/Withdraw -- Availability)
>> ----------------------------------
>> 1. ANSNET (3ffe:d00::/24) had 37100 BGP+ updates (78 unique aspaths)
>>   2839 5609 1673 (28051/15 -- 94%)
>>   7610 1849 33 5609 1673 (5/1 -- 72%)
>>   1225 5609 1673 (547/1 -- 47%)
>>   109 1225 5609 1673 (539/0 -- 47%)
>>   10566 561 5609 1673 (1421/22 -- 46%)
>>   109 4556 5609 1673 (537/2 -- 45%)
>>   1225 4556 5609 1673 (539/1 -- 45%)
>>   7081 6175 1849 145 293 1673 (1/0 -- 31%)
>>   561 6175 4556 5609 1673 (765/4 -- 30%)
>>   5761 6175 4556 5609 1673 (293/258 -- 25%)
>>   7081 293 33 5609 1673 (2/0 -- 21%)
>>   ...Truncated...
>> 
>> 2. EWD-3COM (3ffe:1900::/24) had 8209 BGP+ updates (14 unique aspaths)
>>   561 (1483/0 -- 100%)
>>   10566 561 (15/2 -- 99%)
>>   1225 5609 561 (18/1 -- 99%)
>>   7081 6175 561 (14/0 -- 83%)
>>   5761 6175 561 (1464/1421 -- 79%)
>>   2839 5609 561 (576/1 -- 67%)
>>   109 6175 561 (81/72 -- 61%)
>>   7610 1849 6175 561 (1482/1464 -- 44%)
>>   2500 2500 2500 109 6175 561 (29/29 -- 0%)
>>   2500 2500 2500 33 5609 561 (16/16 -- 0%)
>>   2839 3274 6175 561 (3/0 -- 0%)
>>   ...Truncated...
>> 
>> 3. BAY (3ffe:1300::/24) had 8187 BGP+ updates (27 unique aspaths)
>>   10566 6175 10318 (2958/0 -- 99%)
>>   1225 6175 10318 (17/0 -- 99%)
>>   561 6175 10318 (1479/0 -- 99%)
>>   109 33 10318 (14/0 -- 99%)
>>   5761 6175 10318 (19/1 -- 99%)
>>   7081 145 10318 (2881/0 -- 95%)
>>   7610 1849 33 10318 (11/1 -- 95%)
>>   2839 1849 6175 10318 (51/0 -- 46%)
>>   2839 1849 33 10318 (456/0 -- 42%)
>>   2839 5609 33 10318 (75/0 -- 10%)
>>   7081 6175 10318 (85/0 -- 4%)
>>   ...Truncated...
>> 
>> 4. STUBA (3ffe:2200::/24) had 8116 BGP+ updates (13 unique aspaths)
>>   109 6175 1849 2607 (8/0 -- 100%)
>>   1225 6175 1849 2607 (13/0 -- 100%)
>>   561 6175 1849 2607 (1483/0 -- 100%)
>>   7081 6175 1849 2607 (2956/0 -- 100%)
>>   10566 6175 1849 2607 (2958/0 -- 100%)
>>   5761 6175 1849 2607 (16/1 -- 99%)
>>   2839 1849 786 1103 2607 (554/0 -- 99%)
>>   7610 1849 1103 1835 2607 (0/0 -- 57%)
>>   7610 1849 786 1103 2607 (9/0 -- 42%)
>>   2500 2500 2500 109 6175 1849 2607 (38/38 -- 1%)
>>   2500 2500 2500 33 1849 786 1103 2607 (13/12 -- 0%)
>>   ...Truncated...
>> 
>> 5. SMS (3ffe:2600::/24) had 5331 BGP+ updates (11 unique aspaths)
>>   7081 6175 3274 (714/55 -- 100%)
>>   10566 6175 3274 (1411/5 -- 100%)
>>   7610 1849 6175 3274 (9/0 -- 100%)
>>   109 6175 3274 (8/0 -- 100%)
>>   1225 1103 3274 (13/0 -- 100%)
>>   561 6175 3274 (1483/0 -- 100%)
>>   5761 6175 3274 (19/1 -- 99%)
>>   2839 3274 (702/5 -- 96%)
>>   2839 1103 3274 (182/6 -- 3%)
>>   2500 2500 2500 109 6175 3274 (38/38 -- 1%)
>>   2500 2500 2500 33 1849 6175 3274 (10/9 -- 0%)
>>