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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.
The router will usually compare administrative distances to determine which protocol has the lowest value. The router prefers protocols that have a lower assigned administrative distance. For example, OSPF has a default distance of 110, so it is preferred by the router process, over RIP, which has a default distance of 120.
Examples of link-state routing protocols include Open Shortest Path First (OSPF) and Intermediate System to Intermediate System (IS-IS). [2] The link-state protocol is performed by every switching node in the network (i.e., nodes which are prepared to forward packets; in the Internet, these are called routers). [3]
Multiprotocol router - The computer running RRAS can route IP, IPX, and AppleTalk simultaneously. All routable protocols are configured from the same administrative utility. RRAS included two unicast routing protocols, Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) as well as IGMP routing and forwarding features for IP ...
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 ...
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.
A wildcard mask is a mask of bits that indicates which parts of an IP address are available for examination. In the Cisco IOS, [1] they are used in several places, for example:
Linux-based router project supporting a large set of layer-1 technologies (e.g. Ethernet LAN, Wireless LAN, ISDN, DSL, UMTS), layer-3 protocols and functionality (IPv4, IPv6, stateful packet filter), and various network-related functionality (e.g. Bridging, Bonding, VLANs; DNS, DHCPv4, DHCPv6, IPv6 RA; PPP (client+server), PPTP (client+server ...