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NE20E-S2 V800R010C10SPC500 Feature Description - NAT and IPv6 Transition 01

This is NE20E-S2 V800R010C10SPC500 Feature Description - NAT and IPv6 Transition
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MAP-T/MAP-E Packet Processing

MAP-T/MAP-E Packet Processing

IPv6 single-stack is deployed on networks within a MAP domain. Service traffic sent by IPv6 terminals is carried over native IPv6.

To carry service traffic of IPv4 terminals, an IPv6 tunnel is established between a MAP-CE and a MAP-BR or between MAP-CEs. IPv4 packets can be encapsulated in either MPA-E or MAP-T mode:
  • MAP-T: a translation mode that translates an IPv4 header into an IPv6 header. Packets contain only an IPv6 header.
  • MAP-E: an encapsulation mode that adds an IPv6 header into each IPv4 packet. The IPv6 header is outer, and the IPv4 header is inner.
Figure 3-2 Basic MAP-T/MAP-E architecture

MAP-T data processing

Figure 3-3 MAP-T Data Processing Flowchart

MAP-E data processing

Figure 3-4 MAP-E Data Processing Flowchart
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Updated: 2019-01-02

Document ID: EDOC1100055472

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