A Method of Realizing Connectivity Detection Based on Data Link Layer Ethernet MAC Address
A technology of connectivity detection and MAC address, which is applied in the field of communication, can solve problems such as inability to realize connectivity detection at the data link layer, complex protocol configuration, etc., and achieve the effect of easy implementation and expansion, and less CPU resource occupation
Active Publication Date: 2016-03-23
FENGHUO COMM SCI & TECH CO LTD
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Problems solved by technology
As we all know, the ping and trace commands are common commands for network connectivity detection, but these commands can only test whether the peer is reachable through the IPv4 address or IPv6 address, and cannot implement connectivity detection on the data link layer.
There are also many protocols for connectivity detection on the data link layer, such as CFM, Y1731 and other protocols, but the configuration of these protocols is relatively complicated, and requires devices with high CPU processing capabilities or hardware support capabilities, and some low-end devices cannot support them.
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[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention, but the examples cited are not intended to limit the present invention.
[0024] Such as figure 1 As shown, the method for realizing connectivity detection based on the data link layer Ethernet MAC address of the present invention includes:
[0025] Step 101: The initiating end of the connectivity detection operation constructs a connectivity detection request message, which includes the initiation time, the process ID of the sender, the serial number, etc., and configures the destination MAC address, VLAN, priority and other fields for the process, and sets it The data message type is the request data message type;
[0026] Step 102: Encapsulate the connectivity detection request packet into a common message header that can carry multiple protocols. The common m...
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The invention discloses a method for realizing connectivity detection based on the Ethernet MAC address of the data link layer, which includes: a connectivity detection operation initiator constructs a connectivity detection request message, and sets destination MAC address, VLAN and priority fields; Encapsulating the connectivity detection request message into a public header carrying multiple protocols; generating a connectivity detection Ethernet data frame; searching the MAC address forwarding table according to the destination MAC address to determine the outgoing port, if the outgoing port is found, only Send a connectivity detection Ethernet frame to the found port; after receiving the message, the receiving end exchanges the source MAC address and destination MAC address in the data message to generate a connectivity detection reply message, and then sends the connectivity detection reply message ; The initiator receives the connectivity detection reply message within the specified time and outputs the connectivity detection result. The invention does not require configuration, occupies less CPU resources, and is easy to implement and expand.
Description
Technical field [0001] The invention relates to the field of communication technology, in particular to a method for realizing connectivity detection based on a data link layer Ethernet MAC address. Background technique [0002] Connectivity failure is the most common type of network failure. As we all know, the ping and trace commands are a common type of network connectivity detection commands, but these types of commands can only test whether the peer is reachable through the IPv4 address or the IPv6 address, and cannot achieve connectivity detection on the data link layer. There are also many connectivity detection protocols at the data link layer, such as CFM, Y1731 and other protocols, but the configuration of these protocols is more complicated and requires higher CPU processing capabilities or hardware support capabilities, which some low-end devices cannot support . How to apply connectivity detection to the data link layer simply and effectively without configuration ...
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IPC IPC(8): H04L12/741H04L29/12H04L12/46H04L45/74
Inventor 李松华韩倩
Owner FENGHUO COMM SCI & TECH CO LTD