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发明公开
CN108459851A 实现端到端MPLS二层专线的方法、装置及计算机程序产品 有权 转让

实现端到端MPLS二层专线的方法、装置及计算机程序产品
摘要：
本发明实施例中提供了一种实现端到端MPLS二层专线的方法，所述方法包括：接收第一帧数据；在所述第一帧数据的二层头前面依次设置MPLS内层标签、MPLS外层标签和第二二层头生成第二帧数据；取出所述第二帧数据的MPLS外层标签，在所述第二帧数据的MPLS外层标签上压入新的MPLS标签后再重新插入至所述第二帧数据中生成第三帧数据，根据所述第三帧数据的MPLS内层标签和压入新的MPLS标签后生成的新的MPLS外层标签确定出口后剔除，剩余的数据部分和第一二层头组成的第一帧数据通过所述确定的出口发送至外部网络。本发明还提供了一种实现端到端MPLS二层专线的装置及计算机程序产品。本发明可应用在所有支持P4语言的网络设备上，通用性强。
摘要（英）：

The embodiment of the invention provides a method for realizing an end-to-end MPLS two-layer special line. The method comprises the steps that first frame data is received; an MPLS inner-layer tag, anMPLS outer-layer tag and second frame data generated by a second two-layer header are sequentially arranged in front of a first two-layer header of the first frame data; an MPLS outer-layer tag of the second frame data is extracted, and after a new MPLS tag is pressed into the MPLS outer-layer tag of the second frame data, the generated tag is inserted into the second frame data again to generatethird frame data; after an exit is determined according to an MPLS inner-layer tag of the third frame data and a new MPLS outer-layer tag generated after a new MPLS tag is pressed into the MPLS inner-layer tag, the new MPLS outer-layer tag is removed, and the first frame data composed of the remaining data part and the first two-layer header is sent to an external network through the determined exit. The invention furthermore provides a device for realizing the end-to-end MPLS two-layer special line and a computer program product. The method and the device can be applied to all network devices supporting a P4 language and have high universality.

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