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The Cisco Internetwork Operating System enables network administrators to modify the distance by changing the distance value in sub-router configuration mode. In the example below, RIP's administrative distance is changed to 89 so that it used in preference to OSPF.
The router type is an attribute of an OSPF process. A given physical router may have one or more OSPF processes. For example, a router that is connected to more than one area, and which receives routes from a BGP process connected to another AS, is both an area border router and an autonomous system boundary router.
Enhanced Interior Gateway Routing Protocol (EIGRP) is an advanced distance-vector routing protocol that is used on a computer network for automating routing decisions and configuration. The protocol was designed by Cisco Systems as a proprietary protocol, available only on Cisco routers.
The technique was later adapted for use in the contemporary link-state routing protocols IS-IS and OSPF. Cisco literature refers to Enhanced Interior Gateway Routing Protocol (EIGRP) as a "hybrid" protocol, [12] despite the fact it distributes routing tables instead of topology maps. However, it does synchronize routing tables at start-up as ...
Link-state routing protocols such as Open Shortest Path First (OSPF) and Intermediate System to Intermediate System (IS-IS) elect a designated router on every link to perform flooding of topology information. In wireless ad hoc networks, there is different notion of a link, packets can and do go out the same interface; hence, a different ...
The link-state ID is the router ID of the described ASBR for type 4 LSAs. In OSPFv3 Inter-Area-Router-LSAs have been renamed. 5 AS-external-LSAs Autonomous System Boundary Router's (ASBR) routing domain these LSAs contain information imported into OSPF from other routing processes. They are flooded to all areas unchanged (except stub and NSSA ...
On the Internet, routers forward data packets between computer networks. [1] [2] In order for a router to determine where to forward each packet, it may use: default or static routes that are manually configured, [3] [4] on-demand routing, [5] dynamic routing protocols, [6] or; Policy-based routing. [7]
Packet Tracer is a cross-platform visual simulation tool designed by Cisco Systems that allows users to create network topologies and imitate modern computer networks.The software allows users to simulate the configuration of Cisco routers and switches using a simulated command line interface.