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[Idr] Measurements on Regular, Extended, and Large Communities

"Sriram, Kotikalapudi (Fed)" <kotikalapudi.sriram@nist.gov> Fri, 24 April 2020 13:14 UTC

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From: "Sriram, Kotikalapudi (Fed)" <kotikalapudi.sriram@nist.gov>
To: GROW WG <grow@ietf.org>, "idr@ietf.org" <idr@ietf.org>
CC: "draft-heitz-idr-wklc@ietf.org" <draft-heitz-idr-wklc@ietf.org>, "Hannachi, Lilia (IntlAssoc)" <lilia.hannachi@nist.gov>
Thread-Topic: Measurements on Regular, Extended, and Large Communities
Thread-Index: AQHWGe3MXOXky3BBr0yxtCqjBaxXEqiIN71N
Date: Fri, 24 Apr 2020 13:14:28 +0000
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Subject: [Idr] Measurements on Regular, Extended, and Large Communities
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Please see measurements below on Regular, Extended (EC), and Large Communities (LC).
Analysis is based on data from many newer Routeviews collectors. 
** Question: Any insights why we don't see any ECs at all? **
OTOH, we do see good numbers of LCs even though there is no IANA registry for them yet.
Distribution of path lengths in updates with Communities/LCs is also shown below.

Sriram

P.S. Thank you to Lilia Hannachi (NIST) for the detailed analysis.

*********************************************************************
Community ANALYSIS (Collector : napafrica 2020-04-02:00)
*********************************************************************
# Updates = 479381 (Total)
# COMMUNITY = 329323 (68%)
  (AS path length distribution = 2:11504  3:114361  4:120531  5:49992  6:17917  7:3974  8:1623  9:584  10:130  11:268  12:62  13:2)
# LARGE_COMMUNITY = 49515 (10%)
  (AS path length distribution = 2:4004  3:22893  4:16388  5:4966  6:864  7:313  8:42  10:22  11:1)
# EXTENDED COMMUNITIES = 0 (0%)

*********************************************************************
Community ANALYSIS (Collector : amsix 2020-04-02:08)
*********************************************************************
# Updates = 395487 (Total)
# COMMUNITY = 115900 (29%)
  (AS path length distribution = 2:6038  3:28532  4:42006  5:23086  6:7958  7:2333  8:425  9:98  10:90  11:45  12:19  13:6)
# LARGE_COMMUNITY = 11530 (2%)
  (AS path length distribution = 2:1321  3:4583  4:3871  5:1467  6:214  7:55  8:15  9:4)
# EXTENDED COMMUNITIES = 0 (0%)

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