Line card --- warp and weft yarn are all strand yarn

 1. Thread card belongs to khaki Fabric. If the warp direction is thread and the weft direction is yarn, it is called half thread card; If the warp direction is thread instead of yarn, it is called full thread card. ban xian ka and quan xian ka twill the direction is right oblique. This is twill the biggest difference. The style of all cotton line card is similar to that of yarn card, which has the characteristics of uniform and smooth cloth surface, simplicity and softness, stable setting, moisture absorption and wear resistance, etc. Most of them are casual pants, especially after ironing-free treatment, they are soft and comfortable, the feature of no creases is more prominent, and it has become the preferred fabric for casual long shorts at present.

 2. The line card for a switch, router or a device interface between the access line of other network devices and the access device. Digital and analog line cards with multiple speeds can be used to connect cable or optical fiber line. Digital line cards provide data packet forwarding, ping response, and packet sharding for data networks. Line cards mainly focus on the following aspects:

 3. Such as FIFO and Modified Deficit Round Robin congestion control, such as weighted random early detection ( WRED: Weighted Random Early Detection) other features, such as Access Lists (ACLs:Access Lists), and promised Access rates ( CAR: Committed Access Rate) and data flow statistics. Each digital packet line card can be divided into three main parts:

 4. Physical Layer Interface Module (Physical Layer Interface Module) is a hardware Module used to terminate Physical connections (related media, asynchronous transfer mode ATM, SONET <POS:Packet-over-SONET>, Ethernet Switching Engine-the forwarding Engine is a Switching Fabric. Data packets are provided in advance during LC transmission to the destination. It is mainly responsible for searching, rewriting, Buffering, congestion control, and other operations of data packets. Fabric Interface (Fabric Interface)-the switch Interface (FIC) provides data packets in advance for the transmission process from the Switching Fabric to the LC on the destination. It is mainly responsible for exchanging authorization requests, exchanging queues, and multicast replication.

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