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Message forwarding method and system in information center network

A technology of information center network and message forwarding, applied in the field of network communication

Inactive Publication Date: 2016-07-27
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the analysis, search and forwarding performance of RM for GET packets will become the bottleneck of the information center network architecture

Method used

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  • Message forwarding method and system in information center network
  • Message forwarding method and system in information center network
  • Message forwarding method and system in information center network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0105] Embodiment 1: the organization mode of the inter-domain path identification notification table (PIDTable)

[0106] The inter-domain path identification notification table (PIDTable) is obtained through mutual negotiation and calculation between resource managers. A design method of an inter-domain path identifier notification table (PIDTable) provided by an embodiment of the present invention is as follows: Figure 4 As shown, the content of the entry includes the AS number, the number of path identifier PIDs, the path identifier PID, the protocol forwarding information of the corresponding autonomous domain (such as the source and destination IP addresses in the IPv4 domain), and the forwarding port.

Embodiment 2

[0107] Embodiment 2: the organization mode of the service registry (SIDTable)

[0108] A design method of a service registry (SIDTable) provided by an embodiment of the present invention is as follows: Figure 5 As shown in , the content of the entry includes the service identifier SID, the flag bit Flag (used to distinguish whether the service is registered for this domain or for other domains), the component identifier NID or AS number of the autonomous domain, information of the autonomous domain, forwarding port, and the corresponding autonomous domain. Domain routing address information (for example, in an IPv4 domain, source and destination IP addresses are included), and entry lifetime TTL, etc.

Embodiment 3

[0110] This embodiment describes the intra-domain service parsing and forwarding mechanism, such as Image 6 shown.

[0111] When a user (Client) needs to obtain a certain service, it will first send a service request packet (GET) to the RM in the domain for service query. In this embodiment, the GET packet sent by the user is used to request the service corresponding to the service identifier SID1.

[0112] The service request packet (GET) sent by the user first arrives at the ingress border router Switch3. The border router Switch3 judges and recognizes the arriving service request packet (GET). Because it is a service request packet, according to the design of the information center network, the service request packet sent by the user does not contain any protocol headers, so the resource manager RM uses the GET packet parsing module to perform separate mapping processing of identity and location, and encapsulates the service request packet domain corresponding to the aut...

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Abstract

An embodiment of the invention provides a message forwarding method and system in an information center network. The method mainly includes that an explorer inquires a service registry managed by the explorer according to a service mark in a service request packet; the service request packet is forwarded to a corresponding outlet according to service provider information corresponding to the service mark in the service registry when that the service corresponding to the service mark is in the autonomous domain is determined through inquiry; when that the service corresponding to the service mark is not in the autonomous domain is determined through inquiry, an inter-domain path mark directing to the next autonomous domain of the service provider corresponding to the service mark and related forwarding port information are obtained and the service request packet is forwarded to the next autonomous domain. According to the embodiment of the invention, analysis, searching and forwarding in the explorer of the service request packet in the information center network are realized. Each RM only needs to manage registered information including service marks and the like, so that RM load of operation of registration, update, deletion and like of service content is reduced.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a message forwarding method and system in an information center network. Background technique [0002] Resource access and service acquisition are important core functions of Internet services. The traditional domain name system (DNS: Domain Name System) completes the mapping between domain names and host IP addresses, rather than directly facing resources; if the host address storing a certain resource changes, the corresponding resource needs to be re-registered. This analysis method makes the network insufficient support for resource mobility, reduces flexibility, and lacks description of resource characteristics, which is not conducive to users' acquisition of resources. In addition, DNS also has problems such as slow response speed, poor error correction capability, and error-prone configuration. [0003] In the process of network resource access and data acquisition, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/723H04L45/74H04L45/50
CPCH04L45/50H04L45/54H04L45/74H04L45/745H04L2212/00
Inventor 罗洪斌林怡温兴泵
Owner BEIJING JIAOTONG UNIV
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