Internet Traffic Routing in Thailand

1
Internet Traffic Routing in Thailand

• Aniruth Hiranraks
• THailand Internet eXange (THIX)
• Emailadmin-thix_at_cat.net.th
• Tel [phone]
• Fax [phone]

2
THIX Responsibility

• Operate
• Internaltional Internet Gateway (IIG)
• National Internet eXchange (NIX)

3
(No Transcript)
4
IIGInternational Internet Gateway
5
(No Transcript)
6
Type of IIG Connectivity

• ISP (customers)
• Peering Carriers
• Transit Carriers

7
Type of Internet Traffic

• Domestic Traffic
• Asian Traffic
• Transit Traffic

8
Controlling Internet Traffic by BGP Policy
Routing

• Assumption
• Use BGP as EGP
• Running in Default Free Zone

9
IIG Routing Policy

• Group prefix-routes by using community
• Route received from ISP/IIG customers
• Route received from Peering Carrier
• Route received from Transit Carrier

10
IIG Routing Policy

• To ISP/IIG Customers, IIG advertises
• Domestic routes (route from other ISP) with
  AS-path prepend
• Route from Peering Carrier
• Route from Transit Carrier

11
IIG Routing Policy

• To Peering Carriers, IIG advertises
• Domestic routes / routes from IIG customers

12
IIG Routing Policy

• To Transit Carriers, IIG advertises
• Domestic routes / routes from IIG customers

13
Peering arrangement

• With some peering parties, we implement as-path
  filter-list and update each party when new
  as-path is announced
• The rest, we accept all routes with TRUST
• Prefer peering link as the best path and transit
  as backup

14
Peering arrangement

• Problem
• Routes from some peering neighbors are not seen
  as best path
• Result in unbalance traffic, in/out traffic uses
  different routes, high delay

15
Peering Issue

• FAQ
• Give content or take content
• Reminder
• Internet is 2-way communication
• Both parties get benefit from the peering link
• Why pay for third-party?

16
Suggestion

• More coordination among peering parties