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Method and apparatus for sending internet protocol packet
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An Internet protocol and network element technology, applied in the field of communication, can solve problems such as increasing router overhead, and achieve the effect of reducing overhead
Active Publication Date: 2014-06-04
HUAWEI TECH CO LTD
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Abstract
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Problems solved by technology
[0004] The local device communicates with the remote device that is not on the same network segment as the local device through the router. The router needs to discover the local device through the routing protocol, and dynamically establish and maintain the destination IP address in the routing forwarding table according to the information provided by the routing message. The entry of the local device increases the overhead of the router
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Embodiment 1
[0041] The embodiment of the present invention provides a method for sending IP packets, which can be used in mobile IP scenarios, see figure 2 , figure 2 It is a flowchart of a method for sending an IP packet provided by an embodiment of the present invention, and the method includes:
[0042] 201: The control plane of the router acquires the IP address and the media access control MAC address of the first network element through the point-to-point protocol PPPoE on the Ethernet.
[0043] During specific implementation, the first network element may be a fixed network element or a mobile network element. Wherein, the fixed network element may be a router or a switch. A mobile network element may be a mobile terminal or a virtual machine. The mobile terminal may be a mobile phone, a personal digital assistant (Personal Digital Assistant, PDA) or a portable personal computer (Portable Personal Computer, Portable PC). The first network element may be directly connected to th...
Embodiment 2
[0075] The embodiment of the present invention provides another method for sending IP packets, which can be used in mobile IP scenarios, see image 3 , image 3 It is a flowchart of a method for sending an IP packet provided by an embodiment of the present invention, and the method includes:
[0076] 301: The control plane of the first network element obtains the IP address and the MAC address of the router through PPPoE.
[0077] Regarding the control plane of the first network element obtaining the IP address and MAC address of the router through PPPoE, please refer to 201 in Embodiment 1 for details.
[0078] The IP address of the router may be an IP address of an interface of the router, or may be an IP address of a service of the router. The service may be a video stream service of the router, or an audio stream service of the router. When the IP address of the router is the IP address of the interface of the router, the interface of the router may be a physical interf...
Embodiment 3
[0094] An embodiment of the present invention provides a device for sending IP packets, which can be used in a mobile IPscenario. The means for sending IP packets may be figure 1 in the router. see Figure 4 , Figure 4 It is a schematic diagram of a device for sending IP packets provided by an embodiment of the present invention; the device includes:
[0095] The first obtaining unit 401 is used for the control plane of the router to obtain the IP address and the MAC address of the first network element through PPPoE.
[0096] During specific implementation, the first network element may be a fixed network element or a mobile network element. Wherein, the fixed network element may be a router or a switch. A mobile network element may be a mobile terminal or a virtual machine. The mobile terminal can be a mobile phone, PDA or Portable PC. The first network element may be directly connected to the router. The first network element may also be connected to the router th...
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Abstract
An embodiment of the present invention provides a method for sending an IP packet. The method includes: acquiring, by a control plane of a router, an IP address and a MAC address of a first network element via PPPoE; sending, by the control plane of the router, the IP address of the first network element to a routing forward table to generate a first table entry; sending, by the control plane of the router, the IP address and the MAC address of the first network element to an ARP buffer table to generate a second table entry; advertising, by the router, a routing message to a neighbor router of the router; receiving a first IP packet forwarded by the neighbor router, and a source IP address of the first IP packet is the IP address of the second network element; forwarding, by the router, the first IP packet according to the first table entry and the second table entry. An embodiment of the present invention further provides a corresponding device. According to the method and the device of embodiments of the present invention, a local device communicates with a remote device via a router; there is no need for the router to discover the local device via a routing protocol and dynamically establish and maintain, according to information provided by a routing message, the destination IP address in the routing forward table, as a table entry of the local device, thereby reducing the overhead of the router.
Description
technical field [0001] The embodiments of the present invention relate to communication technologies, and in particular to a method and device for sending Internet protocol packets. Background technique [0002] Currently, the Internet connects many network elements located in different regions. In order to reduce the scale of the network and reduce the cost of management and maintenance, the router divides the entire network into different network segments. The network elements in the same network segment can communicate, and the network elements in different network segments cannot communicate directly. It is necessary for routers to forward Internet Protocol (Internet Protocol, IP) packets. By running routing protocols, such as Internal Gateway Protocol (Internal Gateway Protocol, IGP) and Border Gateway Protocol (Border Gateway Protocol, BGP), network elements in different network segments realize mutual communication. [0003] The inventor finds that the prior art has...
Claims
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Application Information
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