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DHCP, Dynamic Host Allocation Agreement

DHCP dynamic host allocation protocol, widely used in the usual Internet, such as the router for home Internet is a DHCP server. When we set the client to automatically acquire the IP address, the DHCP server assigns the IP address to the client according to the DHCP protocol. The ONU can also be... Read More

The Dying gasp of ONU

 Dying gasp Is that when the system voltage of the system cannot meet the normal operation of the system, the system will automatically send a signal to the terminal, telling the tip that the ONU may not work properly, and the terminal will give a response to release the channel originally arrang... Read More

VLAN ” Virtual LAN

The VLAN (Virtual Local Area Network) is named “Virtual LAN” in Chinese. A VLAN divides a physical LAN into multiple logical LANs, and each VLAN is a broadcast domain. Hosts in VLAN can communicate with messages through the traditional Ethernet communication mode, but between hosts in... Read More

The Calibration of the Optical Power Meter

 For optical communication, testing the optical power is an essential step in building the optical environment. The level of optical power affects the performance of the receiving device. Too low light power will make the device impossible to identify, and too high light power will damage the dev... Read More

VLAN Isolation Function of Ethernet Switch

Before understanding, switch VLAN isolation function, we first to understand the ethernet switch: Ethernet switch is based on Ethernet transmission data switch, Ethernet switch each port can be connected to the host, generally work in full duplex mode, can connect to the port at the same time, ma... Read More

Transfeceiver LFP and FEF Function

 Optical fiber transceiver is a flexible and effective photoelectric conversion device that plays an important role in multi-protocol photoelectric hybrid LAN. Now, in order to better detect and eliminate link faults, some optical fiber transceivers have link failover (LFP) and remote fault (FEF)... Read More