LINE CARD
Computer Mother Board and Gaming Computer System Manufacturing Services
Line card refers to the device interface between the access line and access equipment of a switch, router, or other network device. It features various-rate digital and analog line cards that can be used to connect cable or fiber optic lines. Digital line cards primarily provide functions such as packet forwarding, ping responses, and packet fragmentation for data networks. The key aspects focused on by line cards include:
Queueing: Utilizing strategies such as First In, First Out (FIFO), Modified Deficit Round Robin (MDRR), etc.
Congestion Control: Implementing congestion control mechanisms like Weighted Random Early Detection (WRED).
Other Features: Including functionalities such as Access Lists (ACLs), Committed Access Rate (CAR), and data flow statistics.
Each digital packet line card is typically divided into three main parts:
Physical Layer Interface Module: A hardware module responsible for terminating physical connections, supporting various media and asynchronous transmission modes, such as asynchronous transfer mode (ATM), synchronous optical networking (SONET), Ethernet, etc.
Switching Engine: Responsible for preprocessing packets from the switching fabric to the line card during the transmission process. Main responsibilities include packet lookup, rewriting, buffering, and congestion control operations.
Fabric Interface: The Fabric Interface ASIC (FIA) provides packet preprocessing from the switching fabric to the line card in advance. Its main tasks include switch authorization requests, switch queuing, multicast replication, and other operations.
PRIME Technology has over 30 years of experience in the design and manufacturing of digital line cards, meeting customer needs with advanced technology and excellent manufacturing capabilities. If you have any requirements related to the design and manufacturing of line cards, please feel free to contact us. We look forward to providing you with professional solutions.
