Routing priority

Routing priority

As mentioned earlier, each routing protocol has its own standards to measure the quality of routing (some use next hops, some use bandwidth, and some use delays, which are generally quantified by metric Metric in routing data), And each routing protocol tries to send the routing that it thinks is the best to the routing table, so we can get different routes to the same target network from different protocols.

Although each routing protocol gives metric values, due to the different meanings of the metric values ​​used in each protocol, there is no comparability between them. This requires a strategy to decide which route to use. According to the strategy to determine the optimal route, we add it to the routing table and use it to forward packets. Generally, we use routing priority to judge the quality of routes obtained by different routing protocols. Each routing protocol has its own priority. When the routing between different routing protocols conflicts, the route obtained by the routing protocol with the highest priority is selected. The routing priority is an empirical value obtained based on factors such as the advantages and disadvantages of the routing algorithm, and can also be manually modified by the network administrator.

In the above figure, the three routing protocols RIP, OSPF, and IGRP each obtained a route to the target network 10.0.0.0. We assume that the order of routing priority among the three protocols is OSPF> IGRP> RIP, and finally select the OSPF route as the optimal route.

Flex PCB Assembly = Flex Printed Circuit Board Assembly, which means the PCB Board is flexible. Normally, flex PCB is made with PI or ultra-thin FR4 and it's very thin. Normally, Flexible PCB would need carriers for SMT assembly if by machine. Zhongfeng would manufacture the PCB boards follow the design file, source the components follow the BOM file and do the PCB Assembly job using carriers to follow the assembly drawing and the pick&place file. After PCB assembly done, the components would be mounted on the PCB boards tightly and connected each other through the copper circuits. We call such board as PCBA board or flex PCBA board.

Depends on the components assembly types, it have THT PCB assembly, SMT PCB Assembly , one sided SMT and THT PCB assembly, two sided SMT and THT PCB assembly.

Depends on the PCB type, it have Rigid PCB Assembly, Flex PCB assembly and Flex-Rigid PCB Assembly.

Also we would call some PCB assembly types as Prototype PCB Assembly, Mass PCB Assembly , Turnkey PCB Assembly, LED PCB Assembly and BGA PCB Assembly , etc.

With our 15years professional experience, we are available for all types of PCB assembly service from prototype to mass production, available for 01005, 0201, 0.3mm BGA, 0.3mm QFP.

PCB Assembly Capabilities

PCB Assembly Products Show

PCB SMT Assembly Factory Show

Flex PCB Assembly

Flex PCB Assembly,Flexible PCB Assembly,Quick Flexible PCB Assembly,Flexible PCB Assembly Prototype

ZhongFeng Electronic Technology Co., Limited , https://www.dopcba.com