| 释义 |
router
rout·er 1 R0324700 (rou′tər)n. One that routs, especially a machine tool that mills out the surface of metal or wood.
rout·er 2 R0324800 (ro͞o′tər, rou′-)n.1. One that routes, especially one who prepares shipments for distribution and delivery.2. (rou′tər) Computers a. A device in a network that handles message transfers between computers. b. See gateway.router (ˈraʊtə) n (Tools) any of various tools or machines for hollowing out, cutting grooves, etc
router (ˈruːtə) n (Computer Science) computing a device that allows packets of data to be moved efficiently between two points on a networkrout•er (ˈraʊ tər)
n. 1. any of various tools or machines for routing, hollowing out, or furrowing. 2. Also called rout′er plane`. a plane for cutting interior angles, as at the bottom of a groove. [1840–50] Thesaurus| Noun | 1. | router - a worker who routes shipments for distribution and deliveryskilled worker, skilled workman, trained worker - a worker who has acquired special skills | | 2. | router - (computer science) a device that forwards data packets between computer networksdevice - an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures | | 3. | router - a power tool with a shaped cutter; used in carpentry for cutting groovespower tool - a tool driven by a motor |
Translations
router
router1 any of various tools or machines for hollowing out, cutting grooves, etc.
router2 Computing a device that allows packets of data to be moved efficiently between two points on a network router[′rau̇d·ər] (communications) A device that selects an appropriate pathway for a message and routes the message accordingly. (design engineering) A chisel with a curved point for cleaning out features such as grooves and mortises on wood members. router plane (mechanical engineering) A machine tool with a rapidly rotating vertical spindle and cutter for making furrows, mortises, and similar grooves. router1. A router plane. 2. A machine tool having a rapidly revolving vertical spindle and cutter; used for routing, cutting mortises, etc. 3. A chisel having a curved point; used for cleaning out grooves, mortises, etc.router (networking)/roo't*/ A device which forwards packetsbetween networks. The forwarding decision is based onnetwork layer information and routing tables, oftenconstructed by routing protocols.
Unix manual page: route(8).
See also bridge, gateway, Exterior Gateway Protocol,Interior Gateway Protocol, flapping router.routerA device that forwards data from one network to another. Based on an internal routing table and the address of the destination network in the incoming packet, the router determines whether to send the packet out or keep it within the network. The traffic traversing a router is formatted in a routable protocol, the global standard being TCP/IP, or simply IP (see TCP/IP and routable protocol).
At Home
In the home or small office, a "wireless router" or "wireless gateway" is used to manage Internet traffic. The wireless router contains a built-in Ethernet switch and Wi-Fi access point (see wireless router), and the wireless gateway also includes a modem (see cable/DSL gateway). Both router and gateway have a single port to the Internet.
In a Company
In the enterprise, routers in the local network (LAN) are dedicated to packet forwarding and connect to stand-alone modems and Wi-Fi access points. Although routers do have built-in Ethernet ports, they are often connected to additional Ethernet switches to reach more computers and printers. See Ethernet switch and access point.
Routers in the Core
Within a large enterprise, routers separate local area networks (LANs) into subnetworks (subnets) to balance traffic within workgroups and to filter traffic for security purposes and policy management. They also forward packets between the company's LANs and external networks (WANs), as well as to the Internet. Factors such as traffic load, external line costs and congestion may be taken into consideration to determine which port to forward to. See LAN and WAN.
Within the Internet, very large-scale routers do all the packet switching between the national and regional backbones and are typically connected via optical fibers. Measured in millions of packets per second (see PPS), large routers handle enormous amounts of traffic. See packet switching, Ethernet, SONET, edge router and collapsed backbone.
Specialized Machines or Regular PCs
Routers are dedicated communications devices, and the major router vendors for enterprises and service providers are Cisco, Alcatel-Lucent, Huawei, Juniper and ZTE. Linksys, NETGEAR and D-Link make popular consumer routers. However, a Windows PC can be turned into a router with software such as NAT32 (www.nat32.com).
Router Terminology
Routers used to be called "gateways," which is why the term "default gateway" means the router in your network (see default gateway). For more details on the routable protocol layer, see OSI model and TCP/IP abc's. See layer 3 switch, route server, router cluster and routing protocol.
 | | Route Forwarding |
|---|
| Routing tables hold the data for making forwarding decisions. Although this is a simple example, routing tables become very complex. Static routing uses fixed tables, but dynamic routing uses routing protocols that let routers exchange data with each other. |
 | | Route Forwarding |
|---|
| Routing tables hold the data for making forwarding decisions. Although this is a simple example, routing tables become very complex. Static routing uses fixed tables, but dynamic routing uses routing protocols that let routers exchange data with each other. |
 | | Cisco Routers |
|---|
| For years, Cisco has been the leading router vendor, and these high-end, carrier-grade 7600 models process up to 30 million packets per second (pps). Cisco also makes faster routers as well as smaller routers for less intensive applications. (Image courtesy of Cisco Systems, Inc.) |
 | | Cisco Routers |
|---|
| For years, Cisco has been the leading router vendor, and these high-end, carrier-grade 7600 models process up to 30 million packets per second (pps). Cisco also makes faster routers as well as smaller routers for less intensive applications. (Image courtesy of Cisco Systems, Inc.) |
MedicalSeePPSLegalSeeBridgeFinancialSeeLanAcronymsSeeRrouter
Words related to routernoun a worker who routes shipments for distribution and deliveryRelated Words- skilled worker
- skilled workman
- trained worker
noun (computer science) a device that forwards data packets between computer networksRelated Words- device
- computer science
- computing
noun a power tool with a shaped cutterRelated Words |