/CPN 1 2 N /CPN GigaPoP /CPN 2 1 Backbone structure of CNGI
structure of CERNET2 Gigapop NOC End network other CNGI backbone International Next Generation Research Networks IX Gigapop CERNET2 backbone Access Network
User network IPv4 user network CERNET2 IPv6 backbone IPv4 User network GE 10GE CERNET IPv4 backbone CWDM IPv6 user network GE IPv6 user network tunnel IPv6 user network tunnel
Application available for v6 DNSDNS FTPFTP WWWWWW TELNETTELNET StreamingStreaming BBSBBS NTPNTP GO gameGO game And others
Pro & Con High bandwidth – we do this way at this stageHigh bandwidth – we do this way at this stage QoS -QoS - Security – Source address authorizationSecurity – Source address authorization E2E – no NAT hopefullyE2E – no NAT hopefully Connectivity to v4 world - yesConnectivity to v4 world - yes More applications – still need time to proveMore applications – still need time to prove Free of charge - noFree of charge - no User number growth rate – we will seeUser number growth rate – we will see
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