Multi-address space mobile network architecture, method for registering host information, and method for sending data

A method for registering host information, comprising:

• acquiring, by a host, routable host location information in an edge network (EN) to which the host is currently added, and information of a core edge router (CER) in the EN;
• and
• sending, by the host, registration information to a core network (CN) through the CER in the EN, wherein the registration information comprises a host identifier (HI) of the host, host location information, and CER identifiers (IDs) of one or more CERs in the EN where the host is located;
• wherein a distributed hash table (DHT) is set in the CN for receiving the registration information sent by the host through the CER and a first mapping relationship between the host name and the HI is stored in a DNS in the CN;
• wherein the DHT is used to store and update a second relationship between the host identifier (HI) and a CER identifier (ID), a third relationship between the HI and host location information, and a fourth relationship between the CER ID and CER location information in the CN;
• wherein the first mapping relationship is absent from the DHT;
• and
• wherein the second mapping relationship, the third mapping relationship, and the fourth mapping relationship are absent from the DNS.

A method for sending data, comprising:

• searching for, by a source host, a host ID (HI), corresponding to the host name of a target host from a Domain Name Server (DNS), when the source host intends to send a data packet to the target host;
• searching for, by a source host, a core edge router identifier (CER ID) and host location information corresponding to the HI of the target host from a distributed hash table (DHT) set in a core network (CN) through an ingress CER of an edge network (EN) in which the source host is located according to the HI of the target host when the source host needs to send a data packet to the target host;
• sending, by the source host, the data packet to the ingress CER, wherein the data packet carries a CER ID and host location information of an egress CER corresponding to the HI of the target host;
• receiving, by the ingress CER, the data packet, and searching for the location information of the egress CER from the CN according to the CER ID of the egress CER carried in the data packet, and forwarding the received data packet to the egress CER according to the searched location information of the egress CER;
• and
• receiving, by the egress CER, the data packet, and forwarding the data packet to the target host by adopting the host location information carried in the data packet;
• wherein the DNS is used to store a first mapping relationship between a host name and a HI, the DHT is used to store and update a second mapping relationship between the HI and a CER ID, a third mapping relationship between the HI and host location information, and a fourth mapping relationship between the CER ID and CER location information in the CN;
• wherein the first mapping relationship is absent from the DHT;
• and
• wherein the second mapping relationship, the third mapping relationship, and the fourth mapping relationship are absent from the DNS.