Unlock instant, AI-driven research and patent intelligence for your innovation.

Consultation method of node association channel capability and node device

A node device and node technology, applied in the field of communication, can solve problems such as wrong forwarding, nodes not being able to understand the associated channel capabilities, message loss, etc.

Active Publication Date: 2012-11-07
HUAWEI TECH CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prerequisite for realizing the transmission of special messages in the associated channel is the negotiation of the associated channel capability between nodes at the LSP level. If the associated channel is used directly without negotiation, some nodes that do not support the associated channel capability will receive special messages. will be discarded or forwarded to the user side, resulting in the loss or wrong forwarding of packets transmitted through the associated channel
[0008] The inventor found that since there is no negotiation mechanism for the associated channel capabilities between nodes at the LSP level, the nodes cannot know the associated channel capabilities of other nodes, so that it is impossible to avoid the loss or wrong forwarding of special messages transmitted through the associated channels

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Consultation method of node association channel capability and node device
  • Consultation method of node association channel capability and node device
  • Consultation method of node association channel capability and node device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see figure 2 , figure 2 It is a flowchart of a method for negotiating node-associated channel capabilities provided by Embodiment 1 of the present invention. Such as figure 2 As shown, the method may include:

[0031] 201: The node receives the Path message carrying the channel capability associated with the upstream node sent by the upstream node;

[0032] For example, in the Path message sent by the upstream node, the Path message may contain a certain number of variable-length object (object) fields, and the object field may carry the channel capability associated with the upstream node.

[0033] Wherein, the upstream node may include one or more nodes located upstream of the node. If there are multiple upstream nodes, the object field in the Path message received by the node may carry the associated channel capabilities of multiple upstream nodes.

[0034] It should be noted that the nodes described in this embodiment and subsequent embodiments may be Label S...

Embodiment 2

[0075] Below to figure 1 The shown example uses the Path message and the Resv message to establish the LSP, and introduces the method for negotiating the node-associated channel capability provided by the embodiment of the present invention. The node described in the embodiment of the present invention is the LSR on the LSP established by using the Path message and the Resv message.

[0076] Such as figure 1 As shown, the first node 1 assembles a path message, and the Path message carries the associated channel capability of the first node 1 and sends it to the intermediate node 2;

[0077] The associated channel capability described in the embodiment of the present invention may include: the support capability of the reserved label 13, the support capability of the associated channel, and the support of the associated channel type (such as OAM, automatic protection switching, management control channel, command control channel, etc.) Capability, and OAM tool types such as L...

Embodiment 3

[0128] see image 3 , image 3 It is a flowchart of a method for negotiating node-associated channel capabilities provided by Embodiment 3 of the present invention. Such as image 3 As shown, the method may include:

[0129] 301: Receive the Path message carrying the channel capability associated with the upstream node sent by the upstream node;

[0130] For example, in the Path message sent by the upstream node, the Path message may contain a certain number of variable-length object (object) fields, and the object field may carry the channel capability associated with the upstream node.

[0131] 302: Create a new Path message and send it to the downstream node, the newly created Path message includes the associated channel capability of the upstream node;

[0132] For example, 302 can include:

[0133] Create a new Path message;

[0134] Write the associated channel capability of the upstream node in the variable-length target object field in the newly created Path mess...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a consultation method of node association channel capability and a node device, which relates to the technical field of communications, wherein the consultation method of the capability of the node association channel comprises the following steps of: receiving a Path message sent by an upstream node and carrying with upstream node association channel capability; creating a Path message which comprises the upstream node association channel capability, and sending the Path message to a downstream node; receiving a Resv message sent by the downstream node and carrying with downstream node association channel capability information; and creating a Resv message which comprises the downstream node association channel capability, and sending the Resv message to the upstream node. The embodiment of the invention can realize association channel capability consultation between nodes at a label switch path (LSP) level, so that the nodes at the LSP level can know about the association channel capability of other nodes, and the missing or mistake retransmission of special messages transmitted through an association channel can be avoided.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for negotiating node-associated channel capabilities and node equipment. Background technique [0002] Resource Reservation Protocol-Traffic Engineering based on traffic engineering extension (RSVP-TE, Resource Reservation Protocol-Traffic Engineering), as a supplementary protocol of Resource Reservation Protocol (RSVP), is used for Multi-Protocol Label Switching (MPLS, Multi-Protocol Label Switch) network Establish Label Switched Paths (LSP, Label Switched Paths). [0003] The LSP established by RSVP-TE has the function of resource reservation, so that the services transmitted on the LSP can be guaranteed. figure 1 This is a schematic diagram of establishing an LSP using RSVP-TE. Such as figure 1 As shown, when RSVP-TE is used to establish an LSP, two messages are mainly relied on, namely the Path (Path) message and the Reservation (Resv) message; the establis...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/20H04W28/26H04W88/14H04L12/54H04L47/724
CPCH04L69/24H04L47/748H04L12/5695H04L47/724H04L29/06537H04L47/70
Inventor 国辛纯
Owner HUAWEI TECH CO LTD