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A message generation method, processing method and device

A message processing and message technology, which is applied in the field of communication, can solve the problems of unreported long messages, low transmission efficiency, limited number of SIDlists, etc.

Active Publication Date: 2022-07-22
HUAWEI TECH CO LTD
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Problems solved by technology

[0004] However, at present, the number of SID lists carried in the messages exchanged between the controller and the head node is limited, and the transmission efficiency is low. When the number of SID lists exceeds the number of SID lists that can be carried in the message, the SID list may be truncated As a result, the data is lost or the message is too long to be reported, which leads to the failure of message transmission

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  • A message generation method, processing method and device
  • A message generation method, processing method and device
  • A message generation method, processing method and device

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Embodiment Construction

[0057] see figure 1 , the figure is a schematic diagram of the format of the length-type-value (type-length-value, TLV) field of the SID list carried in a traditional message. The TLV field includes four sub TLV (sub TLV) fields (the four sub TLV fields are figure 1 The type of the first sub TLV field is 1205, indicating that the sub TLV field is a sub TLV related to the SR Segment list; the type of the last three sub TLV fields is 1206, indicating that the The sub TLV field is the sub TLV for the SR segment.

[0058] The first sub TLV field also includes a length (Length) field, a flag (Flags) field, a reserved (Reserved) field, a multi-topology identifier (multi-topology identifier, MTID) field, an algorithm (Algorithm) field and a weight (Weight) field. field. The first sub TLV field occupies a total of 16 bytes. The Flags field carries attribute information and / or status information of the segment list, for example, whether the path corresponding to the SID list is an ...

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Abstract

The embodiments of the present application disclose a message generation method, processing method and device. The method includes: a first device obtains a segment identification list SID list, the SID list includes multiple segment identification SIDs, the first N bits of the multiple SIDs are the same, and the N is a positive integer; the first device A first message is generated according to the SID list, the first message includes a first part and a second part, the first part includes the first N bits of the multiple SIDs, and the second part includes each of the multiple SIDs The N+1th bit to the 128th bit of the SID; the first device sends the first message to the second device. The method can increase the number of SID lists that can be carried in the message, and improve the efficiency of SID list transmission.

Description

technical field [0001] The present application relates to the field of communications, and in particular, to a message generation method, processing method and apparatus. Background technique [0002] Internet Protocol version 6 (IPv6) segment routing (SegmentRouting IPv6, SRv6) is a protocol designed based on the concept of source routing to forward IPv6 data packets on the network. The protocol defines a forwarding path represented by a segment list (segment list, SID list). A SID list includes multiple segment identifiers (segment identifiers, SIDs), and each SID respectively represents a node or link on the forwarding path. The SID list of ordered SIDs can represent the nodes or links that pass through in sequence on the forwarding path. [0003] In the SRv6 network, the controller can calculate the SID list and deliver the SID list to the forwarding device in the network. The forwarding device also needs to report the state or policy information of each SID in the SI...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L69/06H04L69/22
CPCH04L69/06H04L69/22H04L45/50H04L45/74H04L45/34H04L45/04H04L45/72
Inventor 黎文岩王海波王丽丽
Owner HUAWEI TECH CO LTD
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