Method for solving mapping failure
A mapping relationship and router technology, applied in the network field, can solve problems such as mapping relationship failure, achieve the effect of saving network resources, avoiding mapping relationship, and shortening packet forwarding delay
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Embodiment 1
[0046] exist Figure 4 In , it is assumed that node B is a mobile node, and node A is the communication peer of mobile node B. The access router of node A is AR0; the mobile node B initially accesses the network through access router AR1, and then successively accesses the network through access routers AR2, AR3, . . . , ARk.
[0047] When the mobile node moves from the access router AR1 to the access router AR2, the access router AR1 sets a pointer for the mobile node B to point to the access router AR2, and sets a timer "clock 1" for the pointer, as in Figure 4 (a) shown. Similarly, when the mobile node B moves to the access router AR3, the access router AR2 sets a pointer for the mobile node B to point to the access router AR3, and sets a timer "clock 2" for the pointer, such as Figure 4 (b) shown. Similarly, when the mobile node B moves to the access router AR4, the access router AR3 sets a pointer for the mobile node B to point to the access router AR4, and sets a ti...
Embodiment 2
[0055] The present invention can be used not only in the manner shown in Embodiment 1, but also in other manners. Such as Figure 5 As shown, in this embodiment, there are several mobility management domains in the network. Within each mobility management domain, each mobile node has a local anchor. For different mobile nodes, their local anchor points may be different. When a mobile node (such as Figure 5 Mobile Node B) different access routers in the mobility management domain (such as Figure 5 When moving between access routers AR2 and AR3), each access router reports to its local anchor that it is the current access router of the mobile node, such as Figure 5 Shown in (1) and (3). When its local anchor discovers that a mobile node accesses the mobility management domain for the first time, it registers the mapping relationship of the mobile node with the mapping system, and makes the mapping relationship point to the anchor point. exist Figure 5 In , the local a...
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