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GSMA IR34 IMPLEMENTATION IN AMS-IX Inter-IPX
Thomas O’Sullivan
AMS-IX
i3 Workshop
Istanbul September 9th 2013
AMS-IX is
An internet exchange
A GRX exchange
An IP eXchange.
GRX exchange
‣Since 2002 AMS-IX offers its GRX platform (CUG) to
carriers that interconnect MNO’S for data roaming
purposes:
‣ Technical: GRX VLAN, GSMA supplied Root DNS and dedicated equipment and connection
‣ Administrative (‘accreditation’): Memorandum of
Understanding (MOU)
‣ AMS-IX the main GRX peering point globally,
interconnecting 25 GRX providers.
GRX members:
• Aicent• Astelnet• Belgacom ICS• CITIC Telecom• Comfone AG• Deutsche Telekom• Emirates Telecommunications• France Telecom• iBasis• MTT• MTX Communications• NTT Communications• OTEGlobe
• Portugal Telecom• SAP (form. Sybase 365)• Syniverse• Tata Communications• TDC Solutions• Tele 2• Telecom Italia Sparkle• Telefonica IWS• Telekom Austria• Telenor Global Services• TeliaSonera ICS• Telstra
http://www.ams-ix.net/services-pricing/mobile-peering/grx/grx-member-list
These 25 connect over 700 MNO’s for GRX
• Most ports are typically FE (100 Mbit/s).• Private IP network (separate from internet)• No QoS associated.• No inclusive SLA.• Best Effort basis.
GRX TrafficPeaks summer and New Years’ eve
GRX Traffic growth is 100% year on year
GRX traffic 0.1% of total AMS-IX traffic
‘Broadening the scope’
An IP eXchange
Idea in 2010: AMS-IX as a catalyst for IPX?
• Ability to provide platform performance KPI’s in accordance with IR34.
• Excellent historic ‘best effort’ track record.
• Neutral.
• Capable of handling expected traffic growth.
AMS-IX IP eXchange-Physical setup
• Minimum 2 x 1GE redundant Connections in separate co-locations.• Can be scaled to multiple 1 GE or 10GE Lags or even 100GE ports.• 10GE / 100GE ports are connected to 2 Edge switches via a photonic switch which
adds further resilience.
• Private IP network, separate ports, no ISP tagging.• IPX Service include Service Communities.• For GRX, requirement still for MOU.• No marking done by AMS-IX, eg priority.• IPV4 and IPV6 supported.• Inclusive SLA based on IR34 recommendations.
AMS-IX IP eXchange logical setup
IR34: Service Communities
• Service Communities isolated from each other using separate VLANs.• Service Communities you connected to is a matter of choice.
Traffic Classes in IR34
• 4 defined: - Conversational, streaming, Interactive,
background• AMS-IX only focuses on the KPI’s that
apply to the highest class : (‘conversational’ /EF )
- Provides highest KPI’s
- In line with AMS-IX policy of non intrusive
IR.34 QoS Parameters
• Service Availability • Packet loss • Delay• Jitter
• Every switch in I-IPX network has a measurement probe attached• The probes use IEEE 802.1ag Connection Fault Management with ITU-TY.1731
Delay Measurements (OAM for short)• Probe measurement done on a separate VLAN.• Frames sent out 10 times second for delay and jitter.• Frames sent once per second for frame loss.
AMS-IX IP eXchange-IR34 Measurement
Availability:
The proportion of time that the AMS-IX switching platform is considered available to the member on a monthly basis:
GSMA IR.34 : 99.995% per month
AMS-IX SLA : 99.995% per month.
Roundtrip Delay (RDA) :
Intra-continental traffic inside North-Europe = maximum RTD of 40 mille-seconds.(EF)
AMS-IX SLA : <0.5 mille-seconds 1 way
(< 1 mille-second 2 way)
Jitter :
• Intra-continent Jitter Value - 5mS per GRX/IPX Provider (maximum of 2 involved in the service delivery chain)
• Inter-continent Jitter Value - 10mS per GRX/IPX Provider (maximum of 2 involved in the service delivery chain)
• AMS-IX : < 0.1 milleseconds
Packet Loss:
The ratio of dropped packets sent from from source to destination in percentages on a monthly basis:
< 0.1% Highest service ( EF +AF4)
AMS-SLA : <0.05 %
I-IPX SLA Reporting
• Inter-IPX connections have inclusive SLA.• Provide Monthly Service Reports.
- performance and availability• Continuously monitor the platform.• Real time performance graphs on website.• High Service Credits given:
e.g. 100% for > 22 minutes downtime• Service Credits also given for packet loss, delay
and jitter.
AMS-IX Inter-IPX ServiceCurrent Happenings
• Currently service very reliable, no service credits given.• Inter-IPX offered in Hong Kong and Caribbean AMS-IX
exchanges.• Currently 12 Providers have signed up to I-IPX
platform.• Others expected to follow soon.• LTE seems to be the main driver for current
momentum.
I-IPX Contracts signed:
• Aicent• Belgacom ICS• Comfone AG• Deutsche Telekom• Emirates
Telecommunications• iBasis• MTT
• Syniverse• Tata Communications• Telefonica IWS• Telenor Global Services• Telstra• Vodafone/SAP
List to be more easily available on AMS-IX website
AMS-IX is not providing End to End Solution for I-IPX but as an IP eXchange
• Seamless and transparent connection.• IR34 based accountable SLA’s.• Multiple peering partners in private
network.• Scalable network.• Neutral party.
Summary