Dcn packet processing method, network device, and network system

Patent metadata

Field	Value
Publication number	US-2019319829-A1
Application number	US-201916453692-A
Country	US
Kind code	A1
Filing date	Jun 26, 2019
Priority date	Dec 26, 2016
Publication date	Oct 17, 2019
Grant date	—

Abstract

This application provides a DCN packet processing method, a network device, and a network system. The DCN packet processing method includes: generating, by a network device, a first DCN packet whose destination address is an IP address of an NMS, loading the first DCN packet into a Flex Eth overhead multiframe, and sending, over a physical link, the Flex Eth overhead multiframe to a network device that has accessed a network, so that the network device that has accessed the network extracts the first DCN packet, and sends the first DCN packet to the NMS based on the destination address, so as to enable the NMS to perceive that a new network device accesses the network.

First claim

What is claimed is:

1 . A data communication network (DCN) packet processing method, wherein the method comprises:
generating, by a first network device, a first DCN packet, wherein a destination address of the first DCN packet is an IP address of a network management system (NMS), a next hop through which the first DCN packet passes to arrive at the destination address of the first DCN packet is a second network device, and the first network device and the second network device are connected by using a physical link; loading, by the first network device, the first DCN packet into a flexible Ethernet (Flex Ethernet) overhead multiframe; and sending, by the first network device, the Flex Ethernet overhead multiframe to the second network device by using the physical link, so that the second network device extracts the first DCN packet from the Flex Ethernet overhead multiframe, and forwards the first DCN packet to the NMS.

2 . The data communication network DCN packet processing method according to claim 1 , wherein the loading, by the first network device, the first DCN packet into a flexible Ethernet Flex Ethernet overhead multiframe comprises:
loading, by the first network device, the first DCN packet on a section management channel of the Flex Ethernet overhead multiframe; or loading, by the first network device, the first DCN packet on a shim to shim management channel of the Flex Ethernet overhead multiframe; or splitting, by the first network device, the first DCN packet and loading the first DCN packet on a section management channel and a shim to shim management channel of the flexible Ethernet Flex Ethernet overhead multiframe.

3 . The data communication network DCN packet processing method according to claim 1 , further comprising:
generating, by the first network device, a second DCN packet, wherein a destination address of the second DCN packet is the IP address of the NMS, a next hop through which the second DCN packet passes to arrive at the destination address of the first DCN packet is the second network device; monitoring, by the first network device, a state of a Flex Ethernet client, and determining that the state of the Flex Ethernet client is a conducted state; and sending, by the first network device, the second DCN packet to the second network device through the Flex Ethernet client.

4 . The data communication network DCN packet processing method according to claim 1 , further comprising:
buffering, by the first network device, the first DCN packet; or buffering, by the first network device, the second DCN packet.

5 . A network device, used as a first network device, wherein the first network device comprises:
a memory comprising instructions; one or more processors coupled to the memory, wherein the instructions cause the first network device to be configured to: generate a first data communication network (DCN) packet, wherein a destination address of the first DCN packet is an IP address of a network management system (NMS), a next hop through which the first DCN packet passes to arrive at the destination address of the first DCN packet is a second network device, and the first network device and the second network device are connected by using a physical link; load the first DCN packet into a flexible Ethernet (Flex Ethernet) overhead multiframe; and send the Flex Ethernet overhead multiframe to the second network device over the physical link, so that the second network device extracts the first DCN packet from the Flex Ethernet overhead multiframe, and forwards the first DCN packet to the NMS.

6 . The network device according to claim 5 , wherein the instructions cause the first network device to be configured to: load the first DCN packet on a section management channel of the flexible Ethernet Flex Ethernet overhead multiframe; or load the first DCN packet on a shim to shim management channel of the Flex Ethernet overhead multiframe; or load the first DCN packet on a section management channel and a shim to shim management channel of the flexible Ethernet Flex Ethernet overhead multiframe.

7 . The network device according to claim 5 , wherein the instructions cause the first network device to be configured to:
generate a second DCN packet, wherein a destination address of the second DCN packet is the IP address of the NMS, a next hop through which the second DCN packet passes to arrive at the destination address of the first DCN packet is the second network device; and monitor a state of a Flex Ethernet client, determine that the state of the Flex Ethernet client is a conducted state, and send the second DCN packet to the second network device through the Flex Ethernet client.

8 . The network device according to claim 5 , wherein the instructions cause the first network device to be configured to:
buffer the first DCN packet.

9 . A network device, used as a second network device, wherein the second network device comprises:
a memory comprising instructions; one or more processors coupled to the memory, wherein the instructions cause the first network device to be configured to: receive a flexible Ethernet (Flex Ethernet) overhead multiframe sent by a first network device over a physical link, and extract a first data communication network (DCN) packet from the Flex Ethernet overhead multiframe, wherein a destination address of the first DCN packet is an IP address of a network management system (NMS), the second network device is a next hop through which the first DCN packet passes to arrive at the destination address of the first DCN packet, and the second network device and the first network device are connected by using the physical link; and send the first DCN packet to the NMS based on the destination address.

10 . The network device according to claim 9 , wherein the instructions cause the second network device to be configured to: extract the first DCN packet from a section management channel of the Flex Ethernet overhead multiframe; or extract the first DCN packet from a shim to shim management channel of the Flex Ethernet overhead multiframe; or extract the first DCN packet from a section management channel and a shim to shim management channel of the Flex Ethernet overhead multiframe.

11 . The network device according to claim 9 , wherein the instructions cause the second network device to be configured to:
buffer the first DCN packet.

Assignees

• Huawei Tech Co Ltd

Inventors

• Li Xiaodi
• Gao Chuan

Classifications

• H04L12/2856 Primary

  Access arrangements, e.g. Internet access (asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W) · CPC title

• H04L41/0246 Primary

  Exchanging or transporting network management information using the Internet; Embedding network management web servers in network elements; Web-services-based protocols · CPC title

• H04L61/10 Primary

  of different types · CPC title

• H04J3/1652

  Optical Transport Network [OTN] · CPC title

• H04L41/0893

  Assignment of logical groups to network elements · CPC title