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Relay system and switching device

A relay system and switch technology, which is applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as changes, and achieve the effect of preventing learning information

Inactive Publication Date: 2016-06-08
HITACHI METALS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the learning information of the address table may be changed unnecessarily regardless of whether the same client terminal is targeted or not.

Method used

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  • Relay system and switching device
  • Relay system and switching device
  • Relay system and switching device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0046] The overall composition of the relay system

[0047] figure 1 It is a schematic diagram showing an example of the overall configuration in the relay system according to Embodiment 1 of the present invention. figure 1 The relay system shown has a plurality (here, four) of customer networks 12a-12d, a plurality of (here, two) PB networks 11a, 11b responsible for relaying between the customer networks 12a-12d, and responsible for Relay PBB network 10 between PB networks 11a, 11b. The PB network 11a is in charge of the relay between the customer networks 12a and 12b, and the PB network 11b is in charge of the relay between the customer networks 12c and 12d. The PBB network 10 is a relay network that performs relay based on IEEE802.1ah (in other words, the PBB standard). The PB networks 11a and 11b are trunk networks to which the above-mentioned extended VLAN method is applied.

[0048] Switches SWB1 and SWB2 are respectively provided at the border between the customer n...

Embodiment approach 3

[0159] Learning the operation of the information control unit (application example [2])

[0160] Figure 11 In the relay system according to Embodiment 3 of the present invention, it represents image 3 A flowchart of an example of the processing content of the learning information control unit. Figure 11 The processing flow shown is the same as Figure 7 The processing flow shown is compared to the Figure 7 The difference is that step S301 is added between step S104 and step S201. Regarding other handling contents, with Figure 7 are the same, so detailed descriptions are omitted.

[0161] First, as Figure 11 The premise of the processing flow, image 3 Regarding the value of the mask bit 25, the learning information control unit 22 previously determines a priority value. In this premise, the learning information control unit 22, as described above, in the case where the difference in the address for encapsulation is only the mask bit 25 (step S104 (second case)), ...

Embodiment approach 4

[0181] The details of the switching device

[0182] Figure 16 It is a block diagram showing a configuration example of main parts in the switching device according to Embodiment 4 of the present invention. Figure 17 yes means Figure 16 Schematic diagram of an example of the structure of the address table. Figure 18 yes means Figure 16 Schematic diagram of an example of the structure of the MCLAG table. Figure 19 (a) means Figure 16 A schematic diagram of a configuration example of the receiving side IVID management table, Figure 19 (b) means Figure 16 Schematic diagram of a configuration example of the IVID management table on the sending side.

[0183] Figure 16 The switching device SWE shown is for example with image 3 Each of the switching devices SWE1a, SWE1b, SWE2a, and SWE2b corresponds to each other. The switching device SWE has a lower link port connected to the outside of the PBB network 10 (for example, the PB network 11 ), an upper link port con...

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Abstract

A realy system and a switching device which prevent unnecessary changing of study information of an address table are provided. An encapsulation address (BMAC) of a first switching device (SWE1a) is set so as to be different only in a mask bit (25) in comparison with that of a second switching device (SWE1B). A learning information control unit (22) of a third switching device (SWE2a) does not learn the correspondence relation between a source customer address and a source encapsulation address in a first case and a second case. The first case corresponds to a case in which an encapsulated frame is received at an upper-link port and an encapsulation address corresponding to the source customer address is acquired from an address table. The second case corresponds to a case in which a difference between the source encapsulation address and the encapsulation address acquired from the address table lies only in the mask bit (25).

Description

technical field [0001] The present invention relates to a relay system and a switch device. For example, it relates to a relay system and a switch device that operate based on the PBB (Provider Backbone Bridge) standard by setting a link aggregation group across two switch devices. . Background technique [0002] For example, Patent Document 1 shows a configuration in which node redundancy is applied to two edge switch devices installed at the boundary of a MAC-in-MAC network. In this document, when two edge switch devices respectively set the MAC addresses of their own devices / other devices as their own representative addresses / colleague representative addresses, based on the destination of the frame and the difference between their own representative addresses and colleague representative addresses contained in the sending source Composition, which controls the flow of frames. [0003] For example, when one of the two edge switch devices receives an encapsulated frame re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/933H04L45/586H04L47/41
CPCH04L49/15H04L12/4654H04L12/4658H04L12/4662H04L12/4633H04W88/04
Inventor 安多慎
Owner HITACHI METALS LTD