Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for suppressing same-link conflicts

A link and virtual link technology, applied in the FCoE field, which can solve the problems of virtual link flapping, VFC interface same-link conflict, and same-link conflict.

Active Publication Date: 2015-12-16
XINHUASAN INFORMATION TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Similarly, if at least two VFC interfaces are physically connected to the same VFC interface at the opposite end through a switching device with similar characteristics to the Transit switch due to improper networking, at least two VFC interfaces will also have same-link conflicts. , resulting in the oscillation of the virtual link
[0017] It can be seen that for each VFC interface of an FCF, no matter whether its opposite end is the VN interface of the ENode or the VFC interface of other FCFs, there may be conflicts on the same link

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
  • Method and device for suppressing same-link conflicts
  • Method and device for suppressing same-link conflicts
  • Method and device for suppressing same-link conflicts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] As mentioned in the background technology section, before the VFC interface establishes a valid virtual link with the peer, it will broadcast the FIPDiscoveryAdvertisements message to the peer; moreover, the VFC interface that establishes a valid virtual link with the peer will also be valid for keeping alive broadcasts the FIPDiscoveryAdvertisements message to the peer end.

[0082] It can be seen that when at least two VFC interfaces are interconnected with the same peer and have the same link conflict, the FIPDiscoveryAdvertisements message broadcast by each VFC interface can not only be received by the peer, but also It can also be received by other VFC interfaces that conflict with it on the same link.

[0083] Therefore, in this embodiment, the unique identifier of the VFC interface is carried in the FIPDiscoveryAdvertisements message broadcast by any VFC interface, so that each VFC interface that conflicts with the same link can notify each other of their unique ...

Embodiment 2

[0146] In practical applications, each FCF may continuously create a new VFC interface, and the newly created VFC interface will inevitably broadcast a FIPDiscoveryAdvertisements message with its unique identifier.

[0147] Therefore, when the existing at least two VFC interfaces are interconnected with the same peer and have the same link conflict, if the newly created VFC interface is also interconnected with the peer and is connected to the existing at least If two VFC interfaces have the same link conflict, the FIPDiscoveryAdvertisements message broadcast on the newly created VFC interface will inevitably lead to the re-election of each VFC interface. In particular, if the unique identifier of the newly created VFC interface has a higher priority than the unique identifier of the VFC interface that has established a valid virtual link, it will cause the virtual link to flap.

[0148] In order to avoid the occurrence of the above situation, on the basis of the first embodim...

Embodiment 3

[0202] In the second embodiment above, the link validity identifier is used as a restriction condition for interface election, but in this embodiment, the interface election is not restricted, but the link validity identifier is used as a supplementary condition for interface election. That is, when the priority of the unique identifier carried in the FIPDiscoveryAdvertisements message received by the VFC interface is lower than that of the unique identifier of the VFC interface, the link validity identifier is identified.

[0203] That is to say, compared with the second embodiment, this embodiment mainly changes the recognition timing of the link validity identifier, but can still produce an effect similar to that of the second embodiment.

[0204] Still referring to Example 2 such as Figure 10 In the example shown, after VFC3 becomes Up after creation and before sending out the FIPDiscoveryAdvertisements message for the first time, the FIPDiscoveryAdvertisements message peri...

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 method and device for suppressing same-link conflict. Based on the technical solution provided by the present invention, the FCF can use the FIP discovery notification message to notify the unique identifier of each VFC interface to the outside. Therefore, when there are at least two VFC interfaces interconnected with the same peer, each of the VFC interfaces can learn the unique identifiers of other VFC interfaces based on the above notification, and compare the priority of the unique identifiers To realize the election of virtual link control rights for the same peer, so that only one elected VFC interface can establish a valid virtual link with the peer, while other VFC interfaces will be suppressed, and the elected After the VFC interface establishes a valid virtual link with the opposite end, it can continue to suppress other VFC interfaces by notifying other VFC interfaces, so that it can suppress the same link conflict immediately after the election is completed.

Description

technical field [0001] The present invention relates to FCoE (FibreChannelOverEthernet, Fiber Channel Over Ethernet) technology, in particular to a method and device for suppressing same-link conflicts. Background technique [0002] The FCoE technology is a technology for running the FC (FibreChannel, Fiber Channel) protocol suite based on the Ethernet. In the FCoE system, ENodes (Ethernet nodes) such as servers and storage devices are connected to FCFs (FCoE Forwarders, FCoE switches) through virtual links, and then connected to the FC network through the FCF. [0003] see figure 1 , the ENode has an Ethernet interface, and the Ethernet interface of the ENode carries a VN (VirtualN, virtual N node) port, the FCF also has an Ethernet interface, and the Ethernet interface of the FCF carries a VFC (VirtualFC, virtual fiber channel) port; The ENode and the FCF form a physical link at the Ethernet layer through their respective Ethernet interfaces, and based on the physical li...

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): H04L12/703H04Q11/00H04L45/28
Inventor 张长君
Owner XINHUASAN INFORMATION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com