is similar to television broadcasting in that it delivers data from one single source to everybody on the network, whether they want to receive it ornot. Unlike television broadcasts, though, using broadcasting for video can cause network storms, so it is not recommended for IP networking (see...
John F.Buford, ...Eng KeongLua, inP2P Networking and Applications, 2009 Terminology ▪ Unicast. A means of point-to-point communication. In unicast, data is delivered from a sender node to one specific receiver node. That is, if a node wants to send the same information to many destina...
Each OSPF interface must belong to an area, meaning that a link (or network segment) belongs to only one area. Before understanding OSPF areas, you need to get to know two concepts: router type and route type. Router Types Figure 5-18 shows common router types involved in OSPF. Figure ...
Each OSPF interface must belong to an area, meaning that a link (or network segment) belongs to only one area. Before understanding OSPF areas, you need to get to know two concepts: router type and route type. Router Types Figure 5-18 shows common router types involved in OSPF. Figure ...
Administrative distance is a rating of the trustworthiness of a routing information source, an integer between 0 and 255, with a higher value meaning a lower trust rating. An administrative distance of 255 means the routing information source cannot be trusted at a...
Each OSPF interface must belong to an area, meaning that a link (or network segment) belongs to only one area. Before understanding OSPF areas, you need to get to know two concepts: router type and route type. Router Types Figure 5-18 shows common router types involved in OSPF. Figure ...
The IP addresses and router IDs of the routers are shown in Figure 6-12. Figure 6-12 DR/BDR election networking DR and BDR Are Properly Elected on the Network Assume that interfaces on R1 to R4 are configured. Only OSPF configurations are provided here. Configuration of R1 # ospf 1 ...
The IP addresses and router IDs of the routers are shown in Figure 6-12. Figure 6-12 DR/BDR election networking DR and BDR Are Properly Elected on the Network Assume that interfaces on R1 to R4 are configured. Only OSPF configurations are provided here. Configuration of R1 # ospf 1 ...
Each OSPF interface must belong to an area, meaning that a link (or network segment) belongs to only one area. Before understanding OSPF areas, you need to get to know two concepts: router type and route type. Router Types Figure 5-18 shows common router types involved in OSPF. Figure ...
OSPF resolves this problem by partitioning an AS into different areas. An area is regarded as a logical group of routers and is identified by an area ID. A router, not a link, resides at the border of an area. Each OSPF interface must belong to an area, meaning that a link (or net...