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PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 1
Peering in BrazilPTT.br
IETF 88th – ISOC Panel
Regional Interconnection Overview
Vancouver, BC, Canada
November 6, 2013
Eduardo Ascenço Reis <[email protected]>
PTT.br Engineering Team <[email protected]>
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 2
Summary
The purpose of this presentation is to highlight peering in Brazil
considering the regional interconnection scenario.
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 3
CGI.br - The Brazilian Internet Steering Committee
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 4
CGI.br - The Brazilian Internet Steering Committee
The Brazilian Internet Steering Committee (CGI.br) was created by
Interministerial Ordinance 147, of May 31st, 1995, which was amended by
Presidential Decree 4,829 of September 3rd, 2003,
with the purpose of coordinating and integrating all Internet service initiatives in Brazil,
as well as promoting technical quality, innovation and the dissemination of
the services available.
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 5
NIC.br - The Brazilian Network Information Center
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 6
.brDomains / IP / ASN
Registration
Authoritative Name SystemsDNS.br
NIC.br divisions / activitiesRegistro.brCERT.brCetic.brCeptro.br
PTT.br / IPv6.br/ SIMET.nic.br / etc
R$
Brazilians(persons or companies)
Return BenefitsHelp Improve Internet
CGI.br – NIC.br – PTT.br - Financial Model
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 7
IXP - Internet eXchange Point
PTT – Ponto de Troca de Tráfego
Reference Name
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 8
Year Location (City/State) Event
1989 São Paulo / SP .br TLD Activation
1991 São Paulo / SP
1996 São Paulo / SP PTT ANSP/FAPESP Operation Start
1997 São Paulo / SP Registro.br Operation Start (Brazil NIR)
2000 Porto Alegre / RS PTT RSIX Operation Start (RNP UFRGS)
2000 São Paulo / SP PTT OPTiX-LA Operation Start (Optiglobe Inc, now Tivit)
2002 Curitiba / PR PTT PriX Operation Start (RNP UFPR)
2002 Brasilia / DF PTT FIX Operation Start (RNP)
2004 São Paulo / SP PTTMetro (CGI.br)
2004 Rio de Janeiro / RJ PTTMetro (CGI.br)
2004 Brasilia / DF PTT FIX move to PTTMetro (CGI.br)
2004 Barueri / SP PTT ANSP/FAPESP moved to NAP do Brasil (Terremark Latin America)
2005 Curitiba / PR PTT PRIX moved to PTTMetro (CGI.br)
Brazil First Connection to Internet via FAPESP (Dawn of Brazil Internet)
Brazilian PTT History and Internet Key Points
From Peering in Brazil presentation @ LACNIC XI / Salvador, BA – Brazil - Interconnection Schemes and Strategies for ISPs Tutorial
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 9
PTT Close Proliferation Problem (e.g. São Paulo city in the past) - 1/3
City Area
PTTOptix-LA
PTTDiveo
PTTANSP/FAPEP
PTTTelcomp
CustomerAS
Too many ConnectionsHigh Cost
From Peering in Brazil presentation @ LACNIC XI / Salvador, BA – Brazil - Interconnection Schemes and Strategies for ISPs Tutorial
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 10
PTT Close Proliferation Problem (e.g. São Paulo city in the past) - 2/3
City Area
PTTOptix-LA
PTTDiveo
PTTANSP/FAPEP
PTTTelcomp
CustomerAS
?
From Peering in Brazil presentation @ LACNIC XI / Salvador, BA – Brazil - Interconnection Schemes and Strategies for ISPs Tutorial
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 11
PTT Close Proliferation Problem (e.g. São Paulo city in the past) - 3/3
City Area
PTTOptix-LA
PTTDiveo
PTTANSP/FAPEP
PTTTelcomp
CustomerAS
ISPNSP
IP Transit
From Peering in Brazil presentation @ LACNIC XI / Salvador, BA – Brazil - Interconnection Schemes and Strategies for ISPs Tutorial
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 12
PTTMetro – Brazilian Metropolitan IXP Project
PTTMetro (PTT- Internet Exchange Point) is the project of the
Brazilian Internet Steering Committee (CGI.br) that provides the
necessary infrastructure for the direct interconnection between the
diverse networks that operate in a metropolitan region.
http://cgi.br/
http://www.cgi.br/internacional/
http://ptt.br/
From Peering in Brazil presentation @ LACNIC XI / Salvador, BA – Brazil - Interconnection Schemes and Strategies for ISPs Tutorial
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 13
PTTMetro – PTT.br – Project # Operation
PTTMetro
CGI.br project started in 2004 and is still active.
PTT.br
Operation division responsible to deploy and maintain PTTMetro locations.
PTT.br has a partnership to support its operation with entities that host PIX
on all locations. Not complete list of PIX's hosts types:● National Education and Research Network (RNP)● Academic (e.g. Universities)● Information Technology Government Companies (e.g. Procempa, Prodest, Prodepa)● Internet Data Centers (IDC)● Internet Service Providers (ISP)● Internet Network Providers (NSP)
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 14
PTTMetro/PTT.br - Financial Model HighLights
PTTMetro / PTT.br costs are sustained by CGI.br / NIC.br, despite
Autonomous Systems (AS) participants needs for ports (number and capacity).
Each participant AS has only costs to reach one or more Interconnection Points (PIX)
of a specific PTT.br location in order to access its peering fabric.
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 15
IXP
PIX B
Router
Router
RouterRouter
AS A
AS C
AS BAS D
PIX A
PIX C
PIXCentral
PIX D
PIX: Interconnection Point
PTTMetro/PTT.br - Regional Metro Ethernet Non-Blocking Switch/Peering Fabric
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 16
PIX CentralC1
PIX CentralC2
PIXRemote
PTTMetro/PTT.br – High Availability Network Topology Model
PIX: Interconnection Point
Dark Fiber Pair
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 17
PTTMetro/PTT.br – Operational Responsibilities
NIC.br
PTT.br is responsible for:
Installation, Management, Administration, Monitoring and Supporting all IX locations.
Always keeping Neutrality and High Quality as main targets.
Highlight: PTT.br is responsible to provide enough capacity to sustain bandwidth demand
on connection between PIX: (e.g. 1GE, 10GE, nx 10GE with DWDM).
PIX
Each entity that hosts a PTT.br PIX is responsible to provide continuous and high quality:● IDC Infrastructure
Rack Space, Electrical Energy, Refrigeration, Physical Security,
Operational Hand, etc● Dark Fiber Pair (preferably redundant) to Central PIX
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 18
PTTMetro/PTT.br – São Paulo – PIX Topology
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 19
PTT.br – Actual Domain of Operation
BRAZIL
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 20
PTT.br Locations after PTTMetro Project was Started in 2004
● Brasília● Rio de Janeiro● São Paulo
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 21
PTT.br Locations Currently in Operation
Each location is an independent IX
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 22
PTT.br Locations Currently in Operation – Two Recently Activated
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 23
All PTTMetro Locations are Isolated
The main purpose for PTTMetro locations is to allow the local traffic to
stay on the location.
The Brazilian Internet Steering Committee do not intend to interconnect PTTMetro
Locations and compete with telecommunications companies.
PTTMetro project stimulates and support inter locations transport services done
by participants companies.
PTTMetro have defined some transport modes in order to optimize common
resources and reduce costs that are already in production
(e.g. Campinas <=> São Paulo by Fasternet company)
PTTMetro/PTT.br – IXP Locations
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 24
NIC.br - Brazilian AS Distribution
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 25
NIC.br - Brazilian AS Distribution
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 26
NIC.br/PTT.br – IXP Locations and Brazilian AS Distribution
Brazilian Autonomous Systems (AS) ~2200
PTT.br IXP Locations
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 27
AmericanaBelemBelo HorizonteBrasiliaCampina Grande
Campinas
CaxiasCuritiba
FlorianopolisFortalezaGoianiaLajeado Londrina
Manaus
MaringaNatal
Porto AlegreRecifeRio de JaneiroSalvadorSao Jose do Rio PretoSao Jose dos CamposSao PauloVitoria
PTT.br – Participants Distribution per Location
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 28
PTT.br – All Locations Aggregated Traffic
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 29
PTT.br – Day Sample Traffic per Location
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 30
PTT.br – All Locations Aggregated Exchanged Traffic Growth
Aug/2007
Feb/2008
Aug/2008
Feb/2009
Aug/2009
Feb/2010
Aug/2010
Feb/2011
Aug/2011
Feb/2012
Ago/2012
Fev/2013
Ago/2013
0
5
10
15
20
25
30
35
40
45
50
Peta
byte
s
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 31
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0
20
40
60
80
100
120
140
160
180
200
Week Day Comparison
PTT.br Sao Paulo
2011 2012 2013
Time
Gb
ps
PTT.br – Three Years Traffic Curve Comparison
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 32
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0
20
40
60
80
100
120
140
160
180
200
Week Day Comparison
PTT.br Sao Paulo
2011 2012 2013
Time
Gb
ps
Comercial Hours Reference (8am to 6pm)
PTT.br – Three Years Traffic Curve Comparison
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 33
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0
20
40
60
80
100
120
140
160
180
200
Week Day Comparison
PTT.br Sao Paulo
2011 2012 2013
Time
Gb
ps
Comercial Hours Reference (8am to 6pm)
PTT.br – Three Years Traffic Curve Comparison
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 34
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0
50
100
150
200
250
Sunday Comparison
PTT.br Sao Paulo
2011 2012 2013
Time
Gb
ps
PTT.br – Three Years Traffic Curve Comparison
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 35
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0
50
100
150
200
250
Sunday Comparison
PTT.br Sao Paulo
2011 2012 2013
Time
Gb
ps
PTT.br – Three Years Traffic Curve Comparison
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 36
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0,00%
1,00%
2,00%
3,00%
4,00%
5,00%
6,00%
7,00%
Week Day Relative Comparison
PTT.br Sao Paulo
2011 2013
Time
Byt
esPTT.br – Three Years Traffic Curve Comparison
Relative Analyses: per hour proportional to full day traffic exchanged
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 37
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0,00%
1,00%
2,00%
3,00%
4,00%
5,00%
6,00%
7,00%
Week Day Relative Comparison
PTT.br Sao Paulo
2011 2013
Time
Byt
esPTT.br – Three Years Traffic Curve Comparison
Relative Analyses: per hour proportional to full day traffic exchanged
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 38
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0,00%
1,00%
2,00%
3,00%
4,00%
5,00%
6,00%
7,00%
8,00%
Sunday Relative Comparison
PTT.br Sao Paulo
2011 2013
Time
Byt
esPTT.br – Three Years Traffic Curve Comparison
Relative Analyses: per hour proportional to full day traffic exchanged
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 39
0506
0708
0910
1112
1314
1516
1718
1920
2122
2300
0102
0304
0,00%
1,00%
2,00%
3,00%
4,00%
5,00%
6,00%
7,00%
8,00%
Sunday Relative Comparison
PTT.br Sao Paulo
2011 2013
Time
Byt
esPTT.br – Three Years Traffic Curve Comparison
Relative Analyses: per hour proportional to full day traffic exchanged
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 40
PTTMetro/PTT.br – Peering Agreements
Multi-Lateral Peering Agreements (MLPA)
IP (v4/v6) traffic exchange between all participants.BGP sessions established between participants and IXP route servers.Different MLPA VLANs for IPv4 and IPv6.
Bilateral Peering Agreements (BPA)
Shared VLAN ModeIP traffic exchange only between participants.Use the same MLPA VLANs.
Dedicated VLAN ModeIP traffic exchange only between participants (e.g. Internet Transit).Use a dedicate VLAN for each peering agreement.
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 41
MLPA IPv4(e.g. VLAN tag 10)AS A AS B
MLPA IPv6(e.g. VLAN tag 20) AS C
AS DDedicated
VLAN(e.g. tag 2010)
AS E
AS FDedicated
VLAN(e.g. tag 2020)
AS G
PTTMetro/PTT.br – Logical Connection Structure per Location
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 42
PTTMetro/PTT.br – Reference Model
AS A AS BIP (v4|v6)
Fundamental Definition
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 43
PTTMetro/PTT.br – Basic Operational Model – Allowed Traffic
AS A AS BMAC A MAC B
PTT.brLocation
Peering Fabric
Allowed Frames with Ethertypes:● 0x0800 - IPv4● 0x0806 - ARP● 0x86dd - IPv6
IP (v4|v6)
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 44
PTTMetro/PTT.br – Extended Operational Model – Multiple AS per Single Port
AS A MAC A
PTT.brLocation
Peering FabricMLPA
VLAN C
AS D MAC D
NSPTransportProvider
VLANA
VLANB
VLANB
VLANA
Use Different VLAN Tags for Logical Isolation (IEEE 802.1Q)
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 45
PTTMetro - Economically Interests for Telecommunication Companies
● Reduction of Transit and Interconnection Costs
● Last/First Mile Provisioning
● IP Services InterconnectionUsing dedicated VLANs to provide L2 logical isolation for:Internet Transit (IPv4 and IPv6), Backup, Storage, VoIP, etc
● Inter Locations Transport
● Interconnection Points (PIX) Hosting
● Neutral Facilities for the Brazilian Telecommunications Agency Regulated Interconnections
PTTMetro/PTT.br – Economical Summary
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 46
PTTMetro/PTT.br – SIMET
SIMET.NIC.BR
Internet Traffic Measurement System
NIC.br AS14026 operating in most
of PTT.br locations
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 47
PTTMetro/PTT.br – SIMET
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 48
Anycast Copies at 14 PTT.br IX Locations
Root: L.root-servers.net.BR cctld: [b-f].dns.br
PTTMetro/PTT.br – Redundant Authoritative DNS Servers Service
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 49
PTTMetro/PTT.br – Redundant Authoritative DNS Servers Service
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 50
PTT.br – Participação no Euro-IX
European Internet Exchange Association (Euro-IX)
https://www.euro-ix.net/
PTT.br is an Euro-IX member since 2010
with personal attendance on meetings since 2011.
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 51
PTT.br – Participação no LAC-IX
Latino American and Caribean Internet Exchange Asociation (LAC-IX)
http://lac-ix.org/
PTT.br is a cofounder and member of LAC-IX.
LAC-IX
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 52
PTTMetro/PTT.br – PTT Forum 7 – São Paulo, Brazil
The PTT Fórum 7 event will take place in São Paulo, Brazil on the 2nd and 3rd of December 2013.
PTT Fórum normal audience is composed by Brazilian Autonomous Systems (AS) and PTTMetro/PTT.br IX participants (some of them are international companies).
The event will be translated between Portuguese and English.
The event will be part of the Brazilian Internet Infrastructure week together with an IPv6 Forum and GTER/GTS (Network Engineering, Operation and Security Working Groups).
http://ptt.br/pttforum/
PTTMetro/PTT.br - Peering in Brazil – ISOC Panel Regional Interconnection Overview – IETF 88th – PTT.br <[email protected]> - NIC.br - http://ptt.br/ 53
http://ptt.br/
PTTMetro/PTT.br – Thanks & Contact
Thanks | Obrigado