ethernet performance measurement on the ams-ix platform

AMS-IX Tech Meeting - June 9th 2011

Ethernet Performance Measurement

michiel.appelman@ams-ix.net

2Tech Meeting - June 9th 2011

Agenda

• Need• Ethernet OAM• AMS-IX Setup• Challenges• Next up

2

3Tech Meeting - June 9th 2011

Agenda

• Need• Ethernet OAM• AMS-IX Setup• Challenges• Next up

3

4Tech Meeting - June 9th 2011

Need• Inter-IPX End-to-End QoS

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5Tech Meeting - June 9th 2011

Requirements

• End-to-End SLA’s– Delay– Jitter– Frame Loss

• Presentable Data

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6Tech Meeting - June 9th 2011

Agenda

• Need• Ethernet OAM• AMS-IX Setup• Challenges• Next up

6

7Tech Meeting - June 9th 2011

Ethernet OAM

• Standards:– IEEE 802.3ah Ethernet in the First Mile

• Single link

– IEEE 802.1ag Connection Fault Management• End-to-End Fault Signaling

– ITU-T Y.1731 Ethernet OAM• Adds Performance Measurements

– MEF Technical Specification 17• Still in Phase 1

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8Tech Meeting - June 9th 2011

OAM Definitions

9Tech Meeting - June 9th 2011

OAM Domains

10Tech Meeting - June 9th 2011

Y.1731

• Auto-Discovery of Peer-MEPs– Multicast CCM-messages– Include Frame Loss Counters

• Unicast Delay & Jitter messages• Multicast or Unicast

– Link Trace Messages– Loopback Messages

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11Tech Meeting - June 9th 2011

Agenda

• Need• Ethernet OAM • AMS-IX Setup• Challenges• Next up

11

12Tech Meeting - June 9th 2011

AMS-IX Setup

• 1 MEG -- 26 MEPs– One connected to each PE– 1 CCM message per second– 10 Delay messages per second

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13Tech Meeting - June 9th 2011

Platform

14Tech Meeting - June 9th 2011

Hardware

EtherNID-GE (1GbE)

MetroNODE-CE (10GbE)

Tech Meeting - June 9th 2011

16Tech Meeting - June 9th 2011

Data Gathering

• MRTG polls every minute• RRDtool• Synleaf Realtime Statistics

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17Tech Meeting - June 9th 2011

Agenda

• Need• Ethernet OAM • AMS-IX Setup• Challenges• Next up

17

18Tech Meeting - June 9th 2011

Challenges

• Time Synchronization– Essential for One Way Delay

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19Tech Meeting - June 9th 2011

Challenges (cont.)

• VPLS CPU Protection– Multicast to CPU– Potentially dropped– Flood Multicast

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20Tech Meeting - June 9th 2011

Challenges (cont.)

• Load Balancing– Entropy?– Same path, same link...

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21Tech Meeting - June 9th 2011

Challenges (cont.)

• Internal Procedures– Maintenance Windows– Trouble Tickets– Service Managers– etc..

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22Tech Meeting - June 9th 2011

Agenda

• Need• Ethernet OAM• AMS-IX Setup• Challenges• Next up

22

23Tech Meeting - June 9th 2011

Next up

• Working with Accedian– Specific paths– Lower Thresholds– Getting Realtime Values

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24Tech Meeting - June 9th 2011

Results

25Tech Meeting - June 9th 2011

Results

26Tech Meeting - June 9th 2011

Results

27Tech Meeting - June 9th 2011

Questions ?

http://stats.ams-ix.net

michiel.appelman@ams-ix.net