Route optimizing method, system and access network unit in switching process
A technology for accessing network elements and switching processes, which is applied in the field of communications and can solve problems such as low processing performance and poor real-time performance.
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Embodiment 1
[0073] Such as figure 1 In the schematic diagram of handover management in the shown prior art 1 scenario, the access service router (ASR) is an access gateway, responsible for service functions such as host access management and handover management, and sending and receiving data packets of the host; the mapping server (ILR) The corresponding relationship between the identity identifier AID of the host and the location identifier RID is saved. The access management of HOST1 is performed by the access gateway ASR1, and the access management of HOST3 is performed by the access gateway ASR3. The access gateway ASR1 allocates a location identifier RID1 (11 in the figure) to HOST1. The host HOST1 is in data communication with the communication peer HOST3. At this time, HOST1 uses the encapsulation of the location identifier RID1 to send and receive data with the communication peer. The sending and receiving path of the data message is shown in Figure 12, and is forwarded via ASR...
Embodiment 2
[0104] Figure 4 It is a schematic diagram of LISP-based network topology in prior art 2. The devices in the LISP system include host, border routers ITR, ETR and core routers. A tunnel router (TR) is deployed at the edge of the network site. The router at the entrance of the tunnel is called the Ingress Tunnel Router (ITR for short), and the router at the exit of the tunnel is called the Egress Tunnel Router (ETR for short). The ITR in LISP is responsible for data encapsulation and mapping search, and searches for the corresponding RLOC information according to the destination EID information. A layer of LISP header is encapsulated outside the original host message. ETR in LISP is responsible for the decapsulation of datagrams. LISP ALT plane MAP server / MAP Resolver saves the mapping relationship of EID-to-RLOC.
[0105] The data forwarding process of the LISP protocol is as follows: Figure 5 shown. The encapsulation of the LISP data message is completed on the ingress...
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