Information processing method, device and system

Patent metadata

Field	Value
Publication number	US-9755970-B2
Application number	US-201314401661-A
Country	US
Kind code	B2
Filing date	May 15, 2013
Priority date	May 18, 2012
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

A method for processing information is provided. The method includes: a first member in an equipment group learns forwarding information when forwarding traffic, wherein an ESADI instance based on the equipment group is created on each member in the equipment group; when learning new forwarding information, the first member generates an ESADI frame by utilizing the ESADI instance created thereon, wherein the ESADI frame carries the new forwarding information; and the first member transmits the ESADI frame to a TRILL network where it is.

First claim

What is claimed is:

1. A method for processing information, comprising:
a first member in an equipment group learning forwarding information when traffic is forwarded, wherein an End Station Address Distribution Information (ESADI) instance based on the equipment group has been created on each member in the equipment group;
when the first member has learnt new forwarding information, the first member generating an ESADI frame by utilizing the ESADI instance created on the first member, wherein the ESADI frame carries the new forwarding information, and the new forwarding information comprises far-end MAC address information, and a specific Identifier (ID) is set in the frame header of the ESADI frame and is configured to indicate that the ESADI frame is only configured for the group-based ESADI instance; and
the first member transmitting the ESADI frame to a Transparent Interconnection over Lots of Links (TRILL)-network in which the first member is located.

2. The method according to claim 1 , after the first member transmitting the ESADI frame to a Transparent Interconnection over Lots of Links (TRILL) network in which the first member is located, further comprising:
other members in the same equipment group with the first member in the TRILL network receiving the ESADI frame; and
the other members processing the ESADI frame to learn the new forwarding information according to the ESADI instance based on the equipment.

3. The method according to claim 2 , wherein the new forwarding information is stored in the payload information of the ESADI frame in a Type-Length-Value (TLV) format.

4. The method according to claim 2 , wherein the equipment group is a Virtual Routing Bridge, or a logic unit consisting of a plurality of Routing Bridges.

5. The method according to claim 1 , wherein a value of the specific ID is 0xFFF or 0x000 when the specific ID is a Virtual Local Area Network (VLAN) ID field in the frame header of the ESADI frame.

6. The method according to claim 1 , wherein the ESADI frame carries an equipment group ID, and the equipment group ID is configured to indicate that the payload information of the ESADI frame can be shared in the equipment group identified by the equipment group ID.

7. The method according to claim 1 , wherein the new forwarding information is stored in the payload information of the ESADI frame in a Type-Length-Value (TLV) format.

8. The method according to claim 7 , wherein the new forwarding information comprises: Media Control Access (MAC) information and/or an Operation Administration Maintenance (OAM) message.

9. The method according to claim 8 , wherein the first member sets an equipment ID field in the payload information to be a Nickname of an egress of a Routing Bridge (RBridge) over which the MAC information is output when the new forwarding information is the MAC information.

10. The method according to claim 9 , wherein the first member directly reaches the equipment represented by the MAC information without passing through the other RBridges when the Nickname is 0.

11. The method according to claim 10 , wherein the first member puts a TRILL header and a subsequent content of the TRILL header in the OAM message in the payload information when the new forwarding information is the OAM message.

12. The method according to claim 1 , wherein the equipment group is a Virtual Routing Bridge, or a logic unit consisting of a plurality of Routing Bridges.

13. A method for processing information, comprising:
receiving, by other members in an equipment group, an End Station Address Distribution Information (ESADI) frame from a first member in the same equipment group, wherein an ESADI instance based on the equipment group is created on each member in the equipment group, and the ESADI frame is generated by the first member by utilizing the ESADI instance created on the first member, and the ESADI frame carries new forwarding information learnt by the first member, and the new forwarding information comprises far-end MAC address information, and a specific Identifier (ID) is set in the frame header of the ESADI frame and is configured to indicate that the ESADI frame is only configured for the group-based ESADI instance; and
transmitting, by the other members, the ESADI frame to the ESADI instance based on the equipment group for processing to learn the new forwarding information.

14. The method according to claim 13 , wherein transmitting, by the other members, the ESADI frame to the ESADI instance based on the equipment group for processing comprises:
determining, by the other members, the ESADI instance based on the equipment group according to a specific Identifier (ID) and an equipment group ID in payload information in the ESADI frame; and
transmitting, by the other members, the ESADI frame to the determined ESADI instance for processing.

15. A device for processing information, located on a member in an equipment group, and an End Station Address Distribution Information (ESADI) instance based on the equipment group has been created on each member in the same equipment group, the device comprising:
a first learning module, configured to learn forwarding information when forwarding traffic;
a generation module, configured to, when the first learning module has learnt new forwarding information, generate an ESADI frame by utilizing the ESADI instance created locally, wherein the ESADI frame carries the new forwarding information, and the new forwarding information comprises far-end MAC address information, and a specific Identifier (ID) is set in the frame header of the ESADI frame and is configured to indicate that the ESADI frame is only configured for the group-based ESADI instance; and
a transmission module, configured to transmit the ESADI frame generated by the generation module to a Transparent Interconnection over Lots of Links (TRILL) network in which the first member is located.

16. A device for processing information, located on other members except a first member in an equipment group, an End Station Address Distribution Information (ESADI) instance based on the equipment group has been created on each member in the same equipment group, the device comprising:
a receiving module, configured to receive an ESADI frame from the first member, wherein the first member generates the ESADI frame by utilizing the ESADI instance created on the first member, and the ESADI frame carries new forwarding information learnt by the first member, and the new forwarding information comprises far-end MAC address information, and a specific Identifier (ID) is set in the frame header of the ESADI frame and is configured to indicate that the ESADI frame is only configured for the group-based ESADI instance; and
a second learning module, configured to transmit the ESADI frame to the ESADI instance based on equipment group for processing to learn the new forwarding information.

17. A system for processing information, comprising:
a first member in an equipment group, configured to learn forwarding information when forwarding traffic, wherein an End Station Address Distribution Information (ESADI) instance based on the equipment group has been created on each member in the equipment group, and generate an ESADI frame by utilizing the ESADI instance created on the first member when learning new forwarding information, wherein the ESADI frame carries the new forwarding information, and the new forwarding information comprises far-end MAC address information, and a specific Identifier (ID) is set in the frame header of the ESADI frame and is configured

Assignees

• Zte Corp

Inventors

• Zhai Hongjun
• Cheng Mingjiang
• Liao ting

Classifications

• H04L45/02

  Topology update or discovery · CPC title

• H04L45/66

  Layer 2 routing, e.g. in Ethernet based MAN's · CPC title

• H04L45/74 Primary

  Address processing for routing · CPC title

• H04L45/32

  Flooding (denial of service attacks H04L63/1458) · CPC title

• H04L12/4641 Primary

  Virtual LANs, VLANs, e.g. virtual private networks [VPN] (LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272) · CPC title