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Parameter Notification Method, Acquisition Method and Device

A parameter and notification technology, applied in the field of communication, can solve the problems such as the inability to realize the notification of MRT capability information, and achieve the effect of realizing the notification of capability information

Inactive Publication Date: 2021-02-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a parameter notification method, acquisition method and device to at least solve the problem in the related art that the notification of part of the MRT capability information cannot be realized

Method used

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  • Parameter Notification Method, Acquisition Method and Device
  • Parameter Notification Method, Acquisition Method and Device
  • Parameter Notification Method, Acquisition Method and Device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] image 3 It is a flow chart of MRT capability delivery in a specific embodiment of the present invention, such as image 3 As shown, the process includes the following steps:

[0061] S301, the node (corresponding to the above-mentioned first node) sends MRT capability-related information (corresponding to the parameters contained in the above-mentioned non-default MRT Profile) to the IGP neighbor nodes in the same area or level through IGP extension, especially sending MRT-Blue Information specific to topology and MRT-Red topology.

[0062] Wherein, the IGP extension can be in the form of TLV (Type, Length, Value), or other forms that can be used to identify MRT capability information.

[0063] Optionally, the above MRT capability-related information includes at least one of the following:

[0064] MRT Profile ID: the node supports the identification of a specific MRT Profile;

[0065] GADAG Priority: The priority of participating in the election of GADAG root when...

Embodiment 2

[0089] This embodiment describes the establishment of the corresponding MRT Island by extending OSPF to advertise the MRT Profile using the IP tunnel forwarding mechanism. Such as Figure 6 As shown, OSPF is running in the network, and all nodes are in the same area. Each node is configured to support the same MRT Profile ID using the IP tunnel forwarding mechanism, such as 1, and configure other MRT capability parameters, especially related MRT- The exclusive loopback address in Blue topology and MRT-Red topology, such as:

[0090] On the S node:

[0091] MRT Profile ID: 1

[0092] GADAG Priority: 100

[0093] MRT-Blue loopback address: 1.1.1.9

[0094] MRT-Red loopback address: 1.1.1.10

[0095] On node A:

[0096] MRT Profile ID: 1

[0097] GADAG Priority: 100

[0098] MRT-Blue loopback address: 2.2.2.9

[0099] MRT-Red loopback address: 2.2.2.10

[0100] On node B:

[0101] MRT Profile ID: 1

[0102] GADAG Priority: 100

[0103] MRT-Blue loopback address: 3.3....

Embodiment 3

[0114] This embodiment describes the establishment of the corresponding MRT Island by extending the OSPF advertisement of the MRT Profile using the segment routing forwarding mechanism. Such as Figure 6 As shown, OSPF is running in the network, and all nodes are in the same area. Each node is configured to support the same MRT Profile ID using the segment routing forwarding mechanism, such as 2, and configure other MRT capability parameters, especially related MRT -Proprietary SRGB in Blue topology and MRT-Red topology, such as:

[0115] On the S node:

[0116] MRT Profile ID: 2

[0117] GADAG Priority: 100

[0118] MRT-Blue SRGB: [1000~1999]

[0119] MRT-Red SRGB: [2000~2999]

[0120] On node A:

[0121] MRT Profile ID: 2

[0122] GADAG Priority: 100

[0123] MRT-Blue SRGB: [1000~1999]

[0124] MRT-Red SRGB: [2000~2999]

[0125] On node B:

[0126] MRT Profile ID: 2

[0127] GADAG Priority: 100

[0128] MRT-Blue SRGB: [1000~1999]

[0129] MRT-Red SRGB: [2000~29...

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Abstract

The present invention provides a parameter notification method, acquisition method and device, wherein the parameter passing method includes: the first node determines the parameters included in the non-default maximum redundancy tree configuration information default MRT Profile; the above-mentioned first node passes the internal The gateway protocol IGP extension notifies the second node of the above parameters not included in the default MRT Profile. The present invention solves the problem in the related art that the notification of the capability information of some MRTs cannot be realized, and achieves the effect of realizing the notification of the capability information of some MRTs.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a parameter notification method, acquisition method and device. Background technique [0002] Maximally Redundant Trees (MRT for short) Fast Re-Route (FRR for short) is a relatively new FRR technology that uses two maximally different forwarding topologies for a single-point chain 100% protection against road or node failures. The MRT architecture defines two forwarding mechanisms, namely, the Label Distribution Protocol (Label Distribution Protocol, LDP for short) forwarding mechanism and the network protocol-tunnel (IP-tunnel) forwarding mechanism. The LDP forwarding mechanism uses different labels to distinguish between the default topology forwarding behavior and the MRT forwarding behavior, so that the forwarding plane can support MRT-FRR without any upgrade. The IP-tunnel forwarding mechanism needs to waste a dedicated MRT loopback (local loopback interface) address to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/707H04L12/721H04L12/745H04L12/761H04L45/24H04L45/16H04L45/28H04L45/748
CPCH04L45/12H04L45/16H04L45/22H04L45/748H04L45/484H04L45/28H04L41/0654
Inventor 彭少富金飞蔡陈然
Owner ZTE CORP