CN102377626A - Dual-homing-supporting ring networking method based on virtual private local area network service (VPLS) and Ethernet automatic protection switching (EAPS) - Google Patents
Dual-homing-supporting ring networking method based on virtual private local area network service (VPLS) and Ethernet automatic protection switching (EAPS) Download PDFInfo
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- CN102377626A CN102377626A CN2010102575560A CN201010257556A CN102377626A CN 102377626 A CN102377626 A CN 102377626A CN 2010102575560 A CN2010102575560 A CN 2010102575560A CN 201010257556 A CN201010257556 A CN 201010257556A CN 102377626 A CN102377626 A CN 102377626A
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Abstract
The invention discloses a dual-homing-supporting ring networking method based on virtual private local area network service (VPLS) and Ethernet automatic protection switching (EAPS). The method comprises the following steps that: an EAPS ring comprises a master node and more than one transmission node, and two ports of two VPLS transmission nodes are taken as two ports of a transmission node on the EAPS ring; a message for controlling a virtual local area network (VLAN) is transmitted to one VPLS transmission node from the master node on the EAPS ring, and the VPLS transmission node transmits the message to the other VPLS transmission node by a virtual switching instance (VSI) of the VPLS; and the other VPLS transmission node transmits the message for controlling the VLAN to another transmission node on the EAPS ring. By the method, the limitation that each node is required to be physical equipment is broken, and an EAPS protocol can be realized in a cross-network way.
Description
Technical field
The present invention relates to the link layer protocol and the VPLS agreement of Ethernet ring.
Background technology
EAPS (Ethernet Automatic Protection Switching, Ethernet automatic protection switching) is the Ethernet automatic protection switching scheme with considerable influence of the Internet engineering duty group (IETF) in issue in 2003.The RFC 3619 of IETF has defined EAPS, and the protected field of EAPS is confined in the scope of an annular networking.This technological operation principle is: the physical rings at ether node and link composition is online; Can create some territories (Domain), each territory is controlled the protection of one group of service traffics among the VLAN and is switched, the territory by one control VLAN (Control VLAN), one group protected VLAN (Protected VLAN) to form; Control VLAN is used for communicating control information; User's business is propagated in the VLAN in protection, through to protection VLAN carry out the loop beta pruning, can realize the two layer services protection of service traffics.For each territory; A node on the ring is appointed as host node; Send looped network and perfect probe message, and responsible loop beta pruning, promptly by the obstruction (Block) and the deoppilation (unblock) of protection VLAN group; All the other nodes assist host node to carry out the monitoring of loop circuit state and under the control of host node, carry out switching services as transmission node.
In a territory, an interface in two interfaces of host node on a ring is appointed as main interface, another interface is auxilliary interface.Host node periodically sends looped network along contrary direction and perfects probe message in control VLAN; Ring under normal circumstances can be received this probe message on auxilliary interface; Just on auxilliary interface, block being organized of this territory by protection VLAN; Please join shown in Figure 1ly, the direction of arrow among Fig. 1 representes to control the sending direction of VLAN, and small circle representes that port gets clogged.
When the ring fracture, the node that breaks is adjacent detects event of failure, just sends alarm information to host node.Host node is received alarm information, perhaps in the timer expiry time n of detect cycle (perfect doubly), does not receive on the satellite interface and perfects probe message, then starts the ring switching process; Block by protection VLAN in the satellite interface cancellation, and send refresh message at the left and right both direction that revolves, the notification transmission node refreshes the MAC table; Business continues again, please join shown in Figure 2, wherein; The direction of arrow is represented link down warning message sending direction, X symbolic representation link down.
After ring recovered, host node was received again on satellite interface and is perfected probe message, blocks the group by protection VLAN again, sends refresh message, and the notification transmission node refreshes MAC table, the normal office direction of business recovery.
The shortcoming of above prior art is that every equipment on the ring must be an actual physical equipment.
Summary of the invention
In view of this, the present invention seeks to be to cancel the restriction that each node must be a physical equipment.
In order to realize aforementioned goal of the invention; The invention provides a kind of based on the dual-homed looped network method of the support of VPLS and EAPS; May further comprise the steps: comprise host node on the EAPS ring, transmit contact more than one, be used as two ports of two VPLS transmission nodes two ports of a transmission contact; The message of control VLAN sends to one of them VPLS transmission node from the host node on the EAPS ring, and aforementioned one of them VPLS transmission node sends to another VPLS transmission node through the VSI of VPLS; Aforementioned another VPLS transmission node sends to another transmission node on the EAPS ring to the message of aforementioned control VLAN again.
Further, send the message of controlling VLAN according to the VPLS agreement between said two VPLS transmission nodes.
Further; When receiving the renewal MAC message of EAPS between said two VPLS transmission nodes; With reference to the MAC address entries of VPLS protocol update all VSI on the EAPS interface, and the MAC table of this VSI of renewal of the equipment of notice this VSI of existence in the VPLS network, business is continued again.
Further, two VPLS transmission nodes are invented a transmission contact on the EAPS ring.
Further, be a three-layer network between two VPLS transmission nodes.
Further, through said VSI, the actual access link of VPLS is mapped to each bar void chains.
Compared to prior art; The present invention invents the logical physical transfer node of a Daepori through VPLS technology and two VPLS transmission node equipment; Make the EAPS message between two VPLS transmission nodes, to transmit; Having cancelled each node must be the restriction of physical equipment, can realize the EAPS agreement by across a network.
Description of drawings
Fig. 1 is the principle schematic of EAPS ring.
Fig. 2 is the sketch map of the EAPS ring when sending network failure.
Fig. 3 is the sketch map based on the dual-homed looped network method of the support of VPLS and EAPS provided by the invention.
Embodiment
Specifically introduce embodiments of the invention with reference to the accompanying drawings, structure or function identical among the figure mark with identical numeral.Should be noted that the purpose of accompanying drawing just is convenient to the explanation to the specific embodiment of the invention, is not a kind of unnecessary narration or limitation of the scope of the invention.
It must be the restriction of physical equipment that the present invention has cancelled each node, uses the VPLS network to come a virtual physical equipment.
See also Fig. 3, wherein, the EAPS ring comprises host node 1, more than one transmission node.Specifically, EAPS ring has only a host node 1, and other node of EAPS ring is attached to node (transmission node).Each transmission node all has two contacts (port).Do not represent in esse physical connection, do not represent virtual networking with the dotted line of arrow with the solid line of arrow.Two equipment 2 in the right; Between 3 (i.e. two VPLS transmission nodes) is a three-layer network, and the present invention can regard this three-layer network as a virtual transmission node, two VPLS (Virtual Private Lan Serverice; VPLS) transmission node (equipment 2; 3) two ports are as two ports of a transmission node on the EAPS ring, in other words, and similar two ports with a conventional transmission node of these two VPLS ports.The message of the control VLAN (solid line of band arrow among Fig. 3; The dotted line of band arrow is all represented the sending direction of message) send to the bottom-right VPLS equipment 2 of Fig. 3 after; This equipment 2 is through a VSI (the virtual switching instance of VPLS; Virtual switch instance) send to top-right VPLS equipment 3, this equipment 3 sends to transmission node (equipment 4) to the message of this control VLAN again.Through said VSI, can the actual access link of VPLS be mapped to each bar void and chain.
The wherein operation that need carry out of two VPLS transmission nodes (equipment 2,3):
Send the message of control VLAN according to the VPLS agreement;
When receiving the renewal MAC message of EAPS, with reference to the MAC address entries of VPLS protocol update all VSI on the EAPS interface, and the MAC table of this VSI of renewal of the equipment of notice this VSI of existence in the VPLS network, business is continued again.
The present invention invents the logical physical transfer node of a Daepori through VPLS technology and two VPLS transmission node equipment; Make the EAPS message between two VPLS transmission nodes, to transmit; Reach these two VPLS transmission node equipment are invented the logical physical transfer node of a Daepori; Thereby cancel the restriction that each node must be a physical equipment, can realize the EAPS agreement by across a network.The passage that the present invention uses the VPLS agreement to provide becomes the physical equipment on the link layer to network virtual.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Any those of ordinary skill in the art are not breaking away under the technical scheme scope situation of the present invention, utilize the method content of above-mentioned announcement that technical scheme of the present invention is made many possible changes and modification, all belong to the scope of claims protection.
Claims (6)
1. one kind based on the dual-homed looped network method of the support of VPLS and EAPS; May further comprise the steps: comprise host node on the EAPS ring, transmit contact more than one, be used as two ports of two VPLS transmission nodes two ports of a transmission contact on the EAPS ring; The message of control VLAN sends to one of them VPLS transmission node from the host node on the EAPS ring, and aforementioned one of them VPLS transmission node sends to another VPLS transmission node through the VSI of VPLS; Aforementioned another VPLS transmission node sends to another transmission node on the EAPS ring to the message of aforementioned control VLAN again.
2. as claimed in claim 1ly it is characterized in that, send the message of control VLAN between said two VPLS transmission nodes according to the VPLS agreement based on the dual-homed looped network method of the support of VPLS and EAPS.
3. as claimed in claim 2 based on the dual-homed looped network method of the support of VPLS and EAPS; It is characterized in that; When receiving the renewal MAC message of EAPS between said two VPLS transmission nodes; With reference to the MAC address entries of VPLS protocol update all VSI on the EAPS interface, and the MAC table of this VSI of renewal of the equipment of notice this VSI of existence in the VPLS network, business is continued again.
4. as claimed in claim 1ly it is characterized in that two VPLS transmission nodes are invented a transmission contact on the EAPS ring based on the dual-homed looped network method of the support of VPLS and EAPS.
5. VPLS as claimed in claim 1 realizes it is characterized in that based on the professional method of the tree type of Ethernet, is a three-layer network between two VPLS transmission nodes.
6. VPLS as claimed in claim 1 realizes it is characterized in that based on the professional method of the tree type of Ethernet, through said VSI, the actual access link of VPLS is mapped to each bar void chains.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102575560A CN102377626A (en) | 2010-08-19 | 2010-08-19 | Dual-homing-supporting ring networking method based on virtual private local area network service (VPLS) and Ethernet automatic protection switching (EAPS) |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102575560A CN102377626A (en) | 2010-08-19 | 2010-08-19 | Dual-homing-supporting ring networking method based on virtual private local area network service (VPLS) and Ethernet automatic protection switching (EAPS) |
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| CN102377626A true CN102377626A (en) | 2012-03-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1909497A (en) * | 2006-08-24 | 2007-02-07 | 华为技术有限公司 | Method and device for improving reliability of user terminal dual attachment network in VPLS system |
| CN1972234A (en) * | 2005-11-24 | 2007-05-30 | 杭州华为三康技术有限公司 | Ring shape Ethernet and its service loading implementation method |
| US20090257348A1 (en) * | 2008-04-11 | 2009-10-15 | Stokes Olen L | Redundant ethernet automatic protection switching access to virtual private lan services |
| CN101702689A (en) * | 2009-11-30 | 2010-05-05 | 迈普通信技术股份有限公司 | Transmission control method with balanced multicast service data load and access device thereof |
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2010
- 2010-08-19 CN CN2010102575560A patent/CN102377626A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1972234A (en) * | 2005-11-24 | 2007-05-30 | 杭州华为三康技术有限公司 | Ring shape Ethernet and its service loading implementation method |
| CN1909497A (en) * | 2006-08-24 | 2007-02-07 | 华为技术有限公司 | Method and device for improving reliability of user terminal dual attachment network in VPLS system |
| US20090257348A1 (en) * | 2008-04-11 | 2009-10-15 | Stokes Olen L | Redundant ethernet automatic protection switching access to virtual private lan services |
| CN101702689A (en) * | 2009-11-30 | 2010-05-05 | 迈普通信技术股份有限公司 | Transmission control method with balanced multicast service data load and access device thereof |
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Application publication date: 20120314 |