Layer 2 multicast forwarding link failure positioning method and equipment
A Layer 2 multicast and fault location technology, applied in the field of communication, can solve problems such as no multicast service detection
Inactive Publication Date: 2014-11-05
HUAWEI TECH CO LTD
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there is no detection for the multicast service in the VPLS network in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0032] figure 1 It is a flow chart of an embodiment of the method for locating the fault of the Layer 2 multicast forwarding link of the present invention, such as figure 1 As shown, the method of the present embodiment includes:
[0033] 101. Receive a first detection packet sent by a detection initiation device designated by a user; the first ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a layer 2 multicast forwarding link failure positioning method and layer 2 multicast forwarding link failure positioning equipment. The method comprises the following steps of: receiving a first detection message from detection initiation equipment specified by a user, wherein the first detection message comprises a virtual switch instance (VSI) and diagnosis assistant information, and the diagnosis assistant information comprises a multicast address, a destination equipment address and a time to live (TTL); acquiring a multicast forwarding table entry corresponding to the multicast address and the VSI, transmitting the first detection message to equipment on a layer 2 multicast forwarding link corresponding to the multicast forwarding table entry according to the TTL which is N, adding one to the TTL to obtain the updated TTL if a response message is received from the equipment of the Nth hop and the address of the equipment of the Nth hop is judged not to be the destination equipment address; transmitting a second detection message to the equipment on the layer 2 multicast forwarding link according to the updated TTL; and if the response message is not received from the equipment of the (N+1)th hop, determining a failing position between the equipment of the (N+1)th hop and the equipment of the Nth hop, wherein the N is an integer more than or equal to 1.
Description
technical field [0001] The embodiments of the present invention relate to communication technologies, and in particular to a method and equipment for fault location of a Layer 2 multicast forwarding link. Background technique [0002] Virtual Private LAN Service (VPLS for short) is a layer-2 virtual private network (Virtual Private Network; VPN for short) based on Multi-Protocol Label Switching (MPLS for short) and Ethernet technology technology. With the development of Ethernet technology, Ethernet has not only become the dominant local area network (Local Area Network; LAN for short) technology, but also is increasingly applied to Metropolitan Area Network (Metropolitan Area Network; MAN for short) as an access technology. and Wide Area Network (Wide Area Network; WAN for short). For example, the VPLS mainly connects multiple Ethernet LAN network segments through a Packet Switched Network (PSN for short), so that they work like a LAN. Therefore, using VPLS technology, s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/723H04L12/18H04L45/16H04L45/50
Inventor 翁煜
Owner HUAWEI TECH CO LTD