a first look at the effects of the ebone shutdown
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A first look at the effects of the Ebone shutdown. Henk Uijterwaal and René Wilhelm RIPE NCC 24 September 2014. KPNQwest. Build a network of fibers in Europe Including take-overs and mergers Ebone network Typical dot com Huge debts Few paying customers Creative bookkeeping - PowerPoint PPT PresentationTRANSCRIPT
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Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/
A first look at the effects of the Ebone shutdown
Henk Uijterwaal and René Wilhelm
RIPE NCC
April 21, 2023
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/2
KPNQwest
• Build a network of fibers in Europe– Including take-overs and mergers– Ebone network
• Typical dot com– Huge debts– Few paying customers– Creative bookkeeping
• Filed for bankruptcy on May 31• Former Ebone network to be shut down first
– July 2, in the morning
• Next major shutdown planned for July 19
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/3
RIPE NCC Test-Traffic Measurements
• RIPE NCC Service to measure one-way delays and losses
• Measurement stations all over the world• Full mesh• Some 2,000 paths that might include the
Ebone network
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/4
TTM data
• Network alarms– Monitors incoming delays– 2 averages: Long (30 days) and short (15 minutes)– Warns operator (and us) if recent delays are
outside the expected range
• Delay and Loss plots
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/5
Delay and Loss plots, format
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/6
Delay and Loss plots, format
• Delay– Top left– X-axis: Time of day (July 02 0:00 – July 03 0:00, GMT)– Y-axis and black dots: Delay in ms for individual packets– Red dots: #hops times 10
• Delay distribution– Top right
• Loss– Bottom right– X-axis: Time of day– Y-axis: % of packets that arrived over 15 minutes = 100%-
loss
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/7
Number of alarms per day
0
100
200
300
400
500
600
700
28-Jun 29-Jun 30-Jun 1-Jul 2-Jul 3-Jul 4-Jul 5-Jul 6-Jul 7-Jul
Alarm SET Alarm CLEARED
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/8
Number of alarms per hour
0
5
10
15
20
25
30
35
7:10 8:10 9:10 10:10 11:10 12:10 13:10 14:10 15:10 16:10 17:10
July 02 Daily Average
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/9
Individual connections
• “Is the Internet still working?”• Expect:
– No connection– Rerouting– Other effects
• Went through all plots for that day
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/10
No connection
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/11
No connection (2)
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/12
No connection (3)
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/13
Major re-routing
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/14
Major re-routingMunich-New York
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/15
Major re-routingMunich – San Jose – New York
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/16
Shutdown of the wrong line
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/17
The network is getting slower
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/18
The network is getting slower (2)
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/19
Overloading of old equipment
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/20
Overloading of old equipment
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/21
Is everybody unhappy then?No, better backup path
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/22
Summary
• “The Internet is still working!”• Not as good as before though
– Connection lost on 1 path out of 2116– Lots of re-routing
• Unstable routes for 30 to 150 minutes• Sub-optimal paths afterwards
– Lots of connections became slower
• Business opportunity for 400 M€• More fun expected this Friday
Henk Uijterwaal . RIPE 42 , April 21, 2023, Amsterdam . http://www.ripe.net/test-traffic/23
Questions, Discussion