Method and Device for Flow Path Negotiation in Link Aggregation Group

• US 20150381474A1
• Filed: 09/27/2013
• Published: 12/31/2015
• Est. Priority Date: 10/19/2012
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: AO, Ting, WEI, Yuehua, YU, Jinghai
• Granted Patent: US 9,736,060 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 45/245 Link aggregation, e.g. trunking
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: Y02D 30/50 in wire-line communication networks, e.g. low power modes or reduced link rate

Abstract

Provided are a method and device for negotiating a traffic path in an LAG, wherein the method includes that an aggregation port acquires indication information, wherein the indication information is used for indicating one or more groups of services or sessions needing to be borne by the aggregation ports, each group of the services or sessions includes one or more services or sessions; the aggregation port determines multiple groups of services or sessions to be borne, and/or services or sessions currently being borne by the aggregation port; an aggregation group portal to which the aggregation port belongs, performs traffic distribution according to services or sessions currently being borne by each aggregation port which belongs to the aggregation group portal. It is solved the problem in the related art that the same service or session cannot be transmitted bi-directionally on the same path, thus implementing the protection on the interconnect interface.

Claims

1. A method for negotiating a traffic path in a Link Aggregation Group (LAG), comprising:

acquiring, by an aggregation port, indication information, wherein the indication information is used for indicating one or more groups of services or sessions needing to be borne by the aggregation port, and each group of the services or sessions comprises one or more services or sessions;

determining, by the aggregation port, multiple groups of services or sessions needing to be borne by the aggregation port, and/or services or sessions currently being borne by the aggregation port;

performing, by an aggregation group portal to which the aggregation port belongs, traffic distribution according to services or sessions currently being borne by each aggregation port which belongs to the aggregation group portal.

2. The method according to claim 1, wherein the services or sessions currently being borne by the aggregation port are one group of services or sessions with a highest priority among the multiple groups of services or sessions, wherein multiple aggregation ports in the aggregation port sequence are sequenced according to priorities for bearing the services or sessions, and the multiple groups of services or sessions needing to be borne by the aggregation port are formed by services or sessions corresponding to aggregation ports with different priorities in all aggregation port sequences.

3. The method according to claim 1, wherein in the aggregation group portal to which the aggregation port belongs, each service or session corresponds to one aggregation port sequence, wherein the aggregation port sequence is formed by sequencing aggregation ports in the aggregation group portal, wherein the multiple groups of services or sessions needing to be borne by the aggregation port are determined according to that the each service or session in the aggregation group portal corresponds to one aggregation port sequence.

7. The method according to claim 1, wherein the aggregation group portal to which the aggregation port belongs, according to a predetermined strategy, modifies or sets the multiple groups of services or sessions needing to be borne by the aggregation port, and/or determines the services or sessions currently being borne by the aggregation port.

8. The method according to claim 1, wherein determining, by the aggregation port, the multiple groups of services or sessions needing to be borne by the aggregation port comprises:

modifying, by the aggregation group portal to which the aggregation port belongs, according to a predetermined strategy, the multiple groups of services or sessions needing to be borne by the aggregation port;

determining, by the aggregation port, according to the multiple groups of services or sessions modified by the aggregation group portal, the multiple groups of services or sessions needing to be borne by the aggregation port.

9. The method according to claim 7, wherein modifying, by the aggregation group portal, according to the predetermined strategy, the multiple groups of services or sessions needing to be borne by the aggregation port comprises:

based on that the multiple groups of services or sessions currently being borne by the aggregation port are inconsistent with the services or sessions indicated in the indication information, judging, by the aggregation group portal to which the aggregation port belongs, whether the multiple groups of services or sessions currently being borne by the aggregation port need to be modified, by comparing a priority of the aggregation group portal with a priority of an aggregation group portal to which an opposite-end aggregation port of the aggregation port belongs;

or

judging, by the aggregation group portal to which the aggregation port belongs, according to a master-slave relationship, whether the multiple groups of services or sessions currently being borne by the aggregation port need to be modified according to the indication information;

wherein judging, by the aggregation group portal to which the aggregation port belongs, according to priority relationship or master-slave relationship of the aggregation group portal, whether the multiple groups of services or sessions currently being borne by the aggregation port need to be modified according to the indication information comprises;

based on that the priority of the aggregation group portal to which the aggregation port belongs is lower than the priority of the aggregation group portal to which the opposite-end aggregation port of the aggregation port belongs, or the aggregation group portal to which the aggregation port belongs is subordinate to the aggregation group portal to which the opposite-end aggregation port of the aggregation port belongs, modifying, by the aggregation group portal, according to the indication information, the multiple groups of services or sessions currently being borne by the aggregation port.

11. The method according to claim 7, wherein setting, by the aggregation group portal to which the aggregation port belongs, according to the predetermined strategy, the multiple groups of services or sessions needing to be borne by the aggregation port comprises:

based on that services or sessions currently being borne by the aggregation port have not been formed on the aggregation port, setting, by the aggregation group portal to which the aggregation port belongs, according to the indication information, the multiple groups of services or sessions currently being borne by the aggregation port.

12. The method according to claim 1, wherein the method further comprises:

when one or more aggregation links corresponding to the aggregation port malfunction or are unavailable, or are separated from an aggregation link group, shielding, by the aggregation group portal to which the aggregation port belongs, the aggregation port corresponding to the one or more aggregation links from an aggregation port sequence, which corresponds to the services or sessions currently being borne by the aggregation port.

13. The method according to claim 12, wherein the method further comprises:

when the one or more aggregation links corresponding to the aggregation port are restored to be used or join the aggregation link group again, determining, by the aggregation group end point, a protection mode;

when the protection mode is a non-revertive mode, adding the aggregation port corresponding to the one or more aggregation links to the aggregation port sequence.

14. The method according to claim 12, wherein the method further comprises:

when the one or more aggregation links corresponding to the aggregation port are restored to be used or join the aggregation link group again, determining, by the aggregation group portal, a protection mode;

when the protection mode is a revertive mode, recovering the aggregation port corresponding to the one or more aggregation links in the aggregation port sequence, and/or, when the protection mode is the revertive mode, a change of the aggregation port sequence triggers a change of the services or sessions currently being borne on the aggregation port.

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18. A device for negotiating traffic path negotiation in a Link Aggregation Group (LAG), comprising an aggregation port, and an aggregation group portal to which the aggregation port belongs, wherein the aggregation port comprises:

an indication information acquiring component, configured to acquire indication information, wherein the indication information is used for indicating one or more groups of services or sessions needing to be borne by the aggregation port, and each group of the services or sessions comprises one or more services or sessions;

a determining component, configured to determine multiple groups of services or sessions needing to be borne by the aggregation port, and/or services or sessions currently being borne by the aggregation port;

the aggregation group portals comprises;

a distributing component, configured to perform traffic distribution according to services or sessions currently being borne by each aggregation port which belongs to the aggregation group portal.

19. The device according to claim 18, wherein the services or sessions currently being borne by the aggregation port is a group of services or sessions with a highest priority among the multiple groups of services or sessions, wherein multiple aggregation ports in the aggregation port sequence are sequenced according to priorities for bearing the services or sessions, and the multiple groups of services or sessions needing to be borne by the aggregation port are formed by services or sessions corresponding to aggregation ports with different priorities in all aggregation port sequences.

20. The device according to claim 18, wherein in the aggregation group portal to which the aggregation port belongs, each service or session corresponds to one aggregation port sequence, wherein the aggregation port sequence is formed by sequencing aggregation ports in the aggregation group portal, wherein the multiple groups of services or sessions needing to be borne by the aggregation port are determined according to that the each service or session in the aggregation group portal corresponds to one aggregation port sequence.

24. The device according to claim 18, wherein the aggregation group portal to which the aggregation port belongs, according to a predetermined strategy, modifies or sets, the multiple groups of services or sessions needing to be borne by the aggregation port, and/or determines the services or sessions currently being borne by the aggregation port.

25. The device according to claim 18, wherein

the aggregation group portal further comprises:

a modifying component, configured to modify according to a predetermined strategy, the multiple groups of services or sessions needing to be borne by the aggregation port;

the determining component comprises;

a determining element, configured to determine, according to the multiple groups of services or sessions modified by the modifying component, the multiple groups of services or sessions needing to be borne by the aggregation port.

26. The device according to claim 24, wherein the modifying component comprises:

a modification determining element, configured to, based on that the multiple groups of services or sessions currently being borne by the aggregation port are inconsistent with the services or sessions indicated in the indication information, judge whether the multiple groups of services or sessions currently being borne by the aggregation port need to be modified, by comparing a priority of the aggregation group portal with a priority of an aggregation group portal to which an opposite-end aggregation port of the aggregation port belongs;

or,

a modification judging element, configured to judge, according to a master-slave relationship, whether the multiple groups of services or sessions currently being borne by the aggregation port need to be modified according to the indication information;

wherein the modifying component further comprises;

a first modifying element, configured to, based on that the priority of the aggregation group portal to which the aggregation port belongs is lower than the priority of the aggregation group portal to which the opposite-end aggregation port of the aggregation port belongs, or the aggregation group portal to which the aggregation port belongs is subordinate to the aggregation group portal to which the opposite-end aggregation port of the aggregation port belongs, modify according to the indication information, the multiple groups of services or sessions currently being borne by the aggregation port.

28. The device according to claim 24, wherein the modifying component further comprises:

a second modifying element, configured to, based on that services or sessions currently being borne by the aggregation port have not been formed on the aggregation port, set according to the indication information, the multiple groups of services or sessions currently being borne by the aggregation port.

29. The device according to claim 18, wherein the aggregation group portal further comprises:

a shielding component, configured to, when one or more aggregation links corresponding to the aggregation port malfunction or are unavailable, or are separated from an aggregation link group, shield the aggregation port corresponding to the one or more aggregation links from an aggregation port sequence, which corresponds to the services or sessions currently being borne by the aggregation ports.

30. The device according to claim 29, wherein the aggregation group portal further comprises:

a first mode determining component, configured to determine, when the one or more aggregation links corresponding to the aggregation port are restored to be used or join the aggregation link group again, a protection mode;

an adding component, configured to add, when the protection mode is a non-revertive mode, the aggregation port corresponding to the one or more aggregation links to the aggregation port sequence.

31. The device according to claim 29, wherein the aggregation group portal further comprises:

a second mode determining component, configured to determine, when the one or more aggregation links corresponding to the aggregation port are restored to be used or join the aggregation link group again, a protection mode;

a recovering component, configured to recover, when the protection mode is a revertive mode, the aggregation port corresponding to the one or more aggregation links in the aggregation port sequence; and

/or when the protection mode is the revertive mode, a change of the aggregation port sequence triggers a change of the services or sessions currently being borne on the aggregation port.

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