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Method and device for extending switch port

A port expansion and switch technology, applied in the field of switch port expansion, can solve problems such as inability to perceive, and achieve the effect of improving centralized management capabilities

Active Publication Date: 2011-08-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In virtualization applications, if a virtual switch that does not support the PE function is used on the server, or there is an ordinary blade switch that does not support the PE function on the server rack, the CB will not be able to perceive each VM (Virtual Machine, virtual machine) virtual ports in the network, and thus cannot control and manage the virtual ports in the network well

Method used

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  • Method and device for extending switch port

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In Embodiment 1 of the present invention, the PE Broker learns that the virtual port not perceived by the CB is activated through the received VDP (Virtual Station Interface Discovery and Configuration Protocol, virtual station interface discovery and configuration protocol) control signaling. The corresponding virtual port configuration process is as follows: Figure 4 As shown, including the following operations:

[0048] When a virtual port not perceived by the CB is started, perform S401, PE Broker receives a VDP request message sent by a virtual switch connected to the virtual port, and the VDP request message requests to generate an association for the virtual port, and the VDP request message carries the MAC address and VLAN information of the virtual port, etc.;

[0049] S402, PE Broker receives the above-mentioned VDP request message, then learns that a virtual port that has not been perceived by the CB has been started, and applies for a new s-tag to the CB; ...

Embodiment 2

[0056] In Embodiment 2 of the present invention, the PE Broker learns that the virtual port not perceived by the CB is activated by listening to the data message. The corresponding virtual port configuration process is as follows: Figure 5 As shown, including the following operations:

[0057] S501. The PE Broker detects the data message, and obtains the source MAC address by parsing the data message;

[0058] S502. PE Broker searches in the stored correspondence table between the MAC address and svid. If the above source MAC address is not found, it means that the virtual port of the source MAC address has not been sensed by the CB and has been started. Obtain the above source MAC address as an unregistered port. The MAC address of the CB-aware port;

[0059] S503, PE Broker applies to CB for a new s-tag;

[0060] S504. After receiving the request for applying for a new s-tag, the CB returns a response message to the PE Broker, and carries the newly allocated svid in the ...

Embodiment 3

[0066] In Embodiment 3 of the present invention, the PE Broker learns that the virtual port that is not perceived by the CB is activated through the information received from the management plane. The corresponding virtual port configuration process is as follows: Figure 6 As shown, including the following operations:

[0067] The VM and the management device exchange information through the management plane, and the management device may be a network management device supporting SNMP or other network management protocols. There is a switch that does not support PE between the VM and the PE. Therefore, the PE Broker is set between the switch that does not support PE and the bottom PE device, or is integrated on the bottom PE device.

[0068] S601. The PE Broker receives a virtual port discovery message sent by the management device, and the message carries virtual port startup information;

[0069] After the management device learns that the virtual port of the VM is activa...

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Abstract

The invention provides a method for extending a switch port, comprising the following steps: acquiring a media access control (MAC) address of a port which is perceived by uncontrolled bridging equipment; applying for a new tag to controlled bridging equipment, such as a service virtual local area network (VLAN) tag (s-tag); and storing a correspondence between the MAC address of the port which is perceived by the uncontrolled bridging equipment and a VLAN identification (ID) value in the applied s-tag. The embodiment of the invention also provides a device for extending the switch port. After the device for extending the switch port perceives that the port which is not perceived by a controlling bridge (CB) starts, the s-tag is applied for the port to the CB and the correspondence between the VLAN ID value in the s-tag and the MAC address of the virtual port is stored, so that the CB can indirectly perceive and control each port in a network by the device, thus improving the centralized management capacity of the network in which extended virtual local area network (E-VLAN) Bridge architecture is used.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular to a method and device for port expansion of a switch. Background technique [0002] The main purpose of Bridge Port Extension (BPE, Bridge Port Extension) is to aggregate complex Bridge control plane functions to a smaller number of Bridges, thereby reducing the management and operation costs of a large number of Bridges in a DC (Data Center, data center) network. The bridge port extension defines a new logical Bridge——E-VLAN Bridge (extended Virtual Local Area Network Bridge, extended virtual local area network bridge). E-VLAN Bridge can be divided into PE (Port Extender, port extension device) and There are two types of CB (Controlling Bridge, control bridge equipment). Among them, PE is responsible for simple data forwarding, and CB is responsible for complex control functions. CB manages multiple and multi-layer PEs, and can sense, control...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/46H04L12/04H04L49/111
Inventor 李晋殷悦厉益舟
Owner HUAWEI TECH CO LTD
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