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IOAM information processing method and device

A processing method, information adding technology, applied in the field of network communication

Active Publication Date: 2020-06-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] IOAM-related drafts are used in the network to use the general routing encapsulation protocol (GRE, Generic Routing Encapsulation), Internet Protocol Version 6 (IPV6, Internet Protocol Version 6), Virtual Extended Local Area Network (VXLAN, Virtual Extensible Local Area Network (LAN, Local Area Network)), Network Service Host (NSH, Network Service Host) and Segment Routing (SR, Segment Routing) are explained as the method of transmission protocol, but the current draft has not yet proposed an IOAM solution for the scenario of tunnel splicing

Method used

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  • IOAM information processing method and device

Examples

Experimental program
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Effect test

example 1

[0062] In this example, as shown in Figure 1(b), egress gateway 1 of data center network 1 and egress gateway 2 of data center network 2 spliced ​​different types of tunnels respectively, and egress gateway 1 does not support adding IOAM information to tunnel type 2 .

[0063] The method includes:

[0064] Step 300, the egress gateway 1 receives the data message carrying the IOAM information sent from the access gateway 1, and the original outer tunnel header is encapsulated into a tunnel header corresponding to tunnel type 1, and the original outer tunnel header carries the IOAM information.

[0065] In this step, the situation that there are other network device nodes between the access gateway 1 and the egress gateway 1 is also within the protection scope of this patent.

[0066] Step 301, egress gateway 1 determines whether egress gateway 1 is the termination point of the current tunnel (that is, a tunnel of tunnel type 1) according to the original outer layer tunnel head...

example 2

[0075] In this example, as shown in Figure 1(b), egress gateway 1 of data center network 1 and egress gateway 2 of data center network 2 splice different types of tunnels respectively, and egress gateway 1 supports adding IOAM information to tunnel type 2.

[0076] The method includes:

[0077] Step 400, the egress gateway 1 receives the data packet carrying the IOAM information sent from the access gateway 1, and the original outer tunnel header is encapsulated into a tunnel header corresponding to tunnel type 1, and the original outer tunnel header carries the IOAM information.

[0078] In this step, the situation that there are other network device nodes between the access gateway 1 and the egress gateway 1 is also within the protection scope of this patent.

[0079] Step 401, egress gateway 1 determines whether egress gateway 1 is the termination point of the current tunnel (that is, a tunnel of tunnel type 1) according to the original outer layer tunnel header of the data...

example 3

[0088] In this example, as shown in Figure 3(b), the egress gateway 1 of the data center network 1 and the egress gateway 2 of the data center network 2 are spliced ​​with different types of tunnels, that is, the tunnel type between the access gateway and the egress gateway is VXLAN tunnel type, the tunnel type between egress gateways is Multi-Protocol Label Switching (MPLS, Multi-Protocol Label Switching) tunnel type, and egress gateway 1 does not support adding IOAM information to MPLS tunnels.

[0089] The method includes:

[0090] Step 500, the egress gateway 1 receives the data message carrying the IOAM information sent from the access gateway 1, the original outer tunnel header is encapsulated into a tunnel header corresponding to the VXLAN tunnel type, and the original outer tunnel header carries the IOAM information.

[0091] In this step, the situation that there are other network device nodes between the access gateway 1 and the egress gateway 1 is also within the pr...

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Abstract

The embodiment of the invention discloses a processing method and device for in-band operation management and maintenance IOAM information. The processing method for the IOAM information comprises thesteps: receiving a data message; when it is determined that the node is the end point of the current tunnel according to the original outer-layer tunnel head of the data message, stripping the original outer-layer tunnel head of the data message, and determining the tunnel type of an exit; adding the IOAM information in the data message and the IOAM information of the node into the data message according to whether the tunnel type of the exit of the node supports the addition of the IOAM information or not; and packaging a new outer-layer tunnel header corresponding to the tunnel type of theexit for the data message, and sending the new outer-layer tunnel header to the next node. According to the embodiment of the invention, the transmission of the IOAM information in a tunnel splicing scene is realized, and the loss of the IOAM information caused by tunnel termination is avoided, so that the IOAM information is continuously acquired to provide decision guidance for a network.

Description

technical field [0001] Embodiments of the present invention relate to but are not limited to network communication technologies, especially a method and device for processing in-band OAM (Operations Administration and Maintenance) (IOAM, In-band OAM or In-situ OAM) information. Background technique [0002] While the data center network puts forward higher requirements for delay, packet loss, forwarding path and reliability, etc., it also urgently needs a network visualization technology that can continuously obtain network operation data, so as to provide support for network troubleshooting, network planning and traffic scheduling. Superior provides decision-making guidance. [0003] In-band OAM is an in-band OAM technology that solves data center network visualization. With the development of technologies such as large capacity, high speed, programming chips, and P4 (Programming Protocol-Independent Packet Processors), in-band OAM technology is gradually being used. propo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/46
CPCH04L41/0246H04L12/4633H04L12/4641H04L41/0213H04L41/34
Inventor 王同乐
Owner ZTE CORP
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