Multicast method in EVI network and edge device ED

An edge device and multicast technology, applied in the field of communication network, can solve the problem of not being able to receive multicast data from multicast sources

Active Publication Date: 2014-08-27
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0055] This application provides a multicast method and an edge device ED in an EVI network to solve the p...

Method used

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  • Multicast method in EVI network and edge device ED
  • Multicast method in EVI network and edge device ED
  • Multicast method in EVI network and edge device ED

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] The multicast method in the EVI network of Embodiment 1 of the present application can be performed by any ED in the EVI network, such as Figure 4 As shown, the method includes the following steps:

[0078] Step S401, create a designated router port for each local VLAN, and configure the corresponding relationship between the VLAN and the designated router port in the local multicast listening table, wherein the designated router port corresponding to a VLAN is the following in the VLAN One of the ports: an Ethernet port or a virtual port connected to a multicast query device or a DR; the virtual port may be an empty interface, for example, but not an EVI-Link port.

[0079] Wherein, the multicast snooping table may specifically be an IGMP Snooping table, and the multicast query device is a device enabled with a multicast query function, for example, an IGMP querier or an MLD querier. The DR may be the DR in the PIM protocol.

[0080] In the step S401, there are main...

Embodiment 2

[0185] by image 3 The shown EVI network is taken as an example to illustrate the method in the first embodiment. Wherein, the ports on each device are shown in Table 3.

[0186] For static configuration mode:

[0187] in such as image 3 In the shown EVI network, IGMP Snooping is enabled on edge devices ED1-ED4, and PIM and IGMP are enabled on routers R1 and R2.

[0188] The creation mode of configuring the designated router port on ED1 is the static configuration mode, and the designated router port corresponding to VLAN 100 on ED1 is configured as the Ethernet port eth1 connected to R1 as the DR. Therefore, after steps 11-12 are adopted, IGMP on ED1 Table 8-1 lists the snooping entries. Table 4-2, 4-3, and 4-4 list the IGMPSnooping entries on ED2 to ED4.

[0189] Table 8-1

[0190] VLAN ID

DR-port

R-port

H-port

100

eth1(S)

eth1, EVI-Link12

G1: EVI-Link14

[0191] Wherein, S indicates that the designated router port is cre...

Embodiment 3

[0212] Regarding the method in the first embodiment above, this embodiment provides an edge device ED in an EVI network to which the method can be applied.

[0213] like Figure 5 As shown, the following modules are included in this ED:

[0214] Create configuration module 10, be used for each VLAN of this equipment to create a designated router port, the correspondence between VLAN and designated router port is configured in the multicast listening table of this equipment, wherein, the designated router port corresponding to a VLAN is One of the following ports in the VLAN: the Ethernet port or virtual port connected to the multicast query device or DR;

[0215] Receiving module 20, for receiving EVI message;

[0216] The decapsulation module 30 is used to decapsulate the EVI message to obtain a multicast data message after the receiving module 20 receives the EVI message that encapsulates the multicast data message, and the multicast data message includes Group informatio...

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Abstract

The application discloses a multicast method in an EVI network and an edge device ED. The method comprises the following steps: a designated router port is created for each local VLAN, and correspondence between VLAN and the designated router port is configured to a local IGMP Snooping table; after an EVI message is received, the EVI message is decapsulated to obtain a multicast data message; and according to VLAN information carried in the EVI message, a matching table entry is found from the IGMP Snooping table, the multicast data message is duplicated according to a multicast router port contained in the matching table entry and a multicast member port corresponding to group information, and the duplicated multicast data message is forwarded according to the multicast router port and the multicast member port, wherein if an designated router port exists in the matching table entry and the multicast member port contains EVI-Link ports, the duplicated multicast data message is packaged to an EVI message and the EVI message is forwarded according to each EVI-Link port in the multicast member port during the forward process.

Description

technical field [0001] The present application relates to the technical field of communication networks, and in particular to a multicast method and an edge device ED in an EVI network. Background technique [0002] In order to achieve high reliability and redundant deployment, and provide better services, most enterprise networks and their data centers usually deploy multiple data centers in different places (that is, different geographical locations) to achieve load sharing and high reliability, and to achieve Free migration of virtual machines between data centers. Since the migration process of the virtual machine is transparent to the user, and the IP (Internet Protocol, Internet Protocol) address cannot be changed, it is necessary to implement Layer 2 network interconnection between data centers distributed in different places. EVI (Ethernet Virtualization Interconnection, Ethernet Virtual Interconnection) is a major Layer 2 network interconnection technology. [000...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L12/46H04L12/741H04L45/16H04L45/74H04L49/111
CPCH04L12/00H04L12/6418H04L12/1836H04L12/18H04L12/4633H04L12/4641H04L45/16H04L49/201H04L49/3009H04L49/351
Inventor 林鹏程沈岭
Owner NEW H3C TECH CO LTD
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