Communication method based on cascade connection of multiple IAD devices

Abstract

The invention discloses a communication method based on cascade connection of multiple IAD devices, and relates to the technical field of network communication, and the method sequentially comprises the following steps: a master device sends a query packet of slave device MAC = 0; the slave device receives the query packet and sends a query response packet with a slave device MAC; the master device receives the query response packet and sends a query packet with slave device MAC; the slave device receives the query packet with the slave device MAC and sends a request IP address packet; the master device receives the request IP address packet and sends an allocated internal IP address packet; the slave device receives the internal IP address packet, sets corresponding parameters, sets a slave device mode, restarts the call processing module, and correspondingly adds 1 to the number of restarts; the master device sends a query packet with a slave device MAC; the slave device receives thequery packet and sends a query response packet with a slave device MAC; and the main device receives the query response packet, identifies the number of ports, sets corresponding parameters, and registers to the SIP server. Compared with a traditional scheme, rapid networking can be achieved, and cost and IPV4 address resources are saved.

Description

Technical field [0001] The present invention relates to the technical field of network communication, in particular to a communication method based on cascading multiple IAD devices. Background technique [0002] At present, many companies have introduced integrated access devices (IAD devices) to implement VOIP phone functions, such as the instructions attached figure 1 As shown, since each IAD device needs to be configured with an IPV4 address, and most IAD devices are implemented using the IPV4 protocol, and one IAD device needs to be assigned an IPV4 address, how many units are in parallel? IAD devices need to allocate how many IPV4 addresses. In this case, a switch or router is required to connect multiple IAD devices. With the increase in the scale of enterprises and the increase in the number of phones, more IAD devices need to be added, which means that more IPV4 addresses need to be allocated. However, because the current IPV4 addresses are already saturated, and IPV6 ha...

AI Technical Summary

Problems solved by technology

As the scale of the enterprise increases and the number of telephones increases, more IAD devices need to be added, that is to say, more IPV4 addresses need to be allocated, but because the current IPV4 addresses are already saturated, and IPV6 has not been adopted on a large scale, and It takes more time, manpower, material and financial resources to replace the IPV6 system

In order to realize the expansion function as soon as possible, and if the IPV4 address cannot be added, the only way is to replace the IAD device with more ports. In this case, the original small port device cannot continue to be used, resulting in waste, while the large port device is more expensive.

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