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What do routers used to select best paths for outgoing data packets?
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How does a router know of path to destination network?
How does a router know of paths to destination networks? (Choose two.) • inspection of the destination IP address in data packets ARP requests from connected routers manual configuration of routes • updates from other routers DHCP information broadcasts updates from the SMTP management information base
21 what types of routing protocols allows routers to exchange information about best paths with their neighboring routers only?
distance vector routing
Difference betweeb Load balancing and Load sharing?
Load sharing is the ability to distribute outgoing traffic (or influence the flow of incoming traffic) over multiple paths. Load balancing is the ability to split the load toward the same destination (host or IP ) over multiple paths>>.In regard to CISCO Routers:Load sharing means one can split the traffic from a network to be transported by different routers (paths). That's exactly what Cisco does with MHSRP. The document on Configuring Multichassis Multilink PPP states that when it tells it to configure half of the hosts with one default gateway and the second half with the other. What happens, for instance, if the first half of the hosts are off? Will the traffic of the second half be transported by both routers?On the other hand, load balancing means distributing the traffic evenly and dynamically among different paths to avoid link congestion and saturation. This can be done in a packet-by-packet basis or per destination in a round-robin fashion. The packets sent by a host follow different paths to the same destination. All paths belong to all hosts. And this is not what MHSRP does.
What type of routing protocol advertises only new paths to other routers on the network?
link-state routing protocol
What are the basic function of a router?
is a networking device whose software and hardware are usually tailored to the tasks of routing and forwarding information. For example, on the internet, information is directed to various paths by routers. Routers connect two or more logical subnets, which do not necessarily map one-to-one to the physical interfaces of the router
What is the difference between routing and forwarding?
routing refers to deciding the route of the packet from one system (a computer) to another system (a computer). It involves many intermediate routers and routing table knowledge.forwarding is a rather simple process of passing a packet from one port/interface to another port /interface. It generally involves one of the routers and routers forwarding table informationThat's what they called call forwarding service in telecommunication.
When should routers be configured to use routing protocols?
It will use the A-D path only. It will use the path A-D, and the paths A-C-D and A-B-D will be retained as the backup paths. It will use all the paths equally in a round-robin fashion. The traffic will be load-balanced between A-B-D and A-C-D.
What are two ways that a router can learn of the paths to destination networks?
Update from other routersARP request from connected routers
What statement is true regarding how packets will travel from the 172.16.1.0 16 network to the 192.168.200.0 24 network?
The router installs all the equal cost paths in the routing table and performs equal cost load balancing to send packets out multiple exit interfaces.
What does the network layer do Where does it sit in relationship to the other four layers of your simplified network model?
Is the layer that provides data routing paths for network communication. Data is transferred in the form of packets via logical network paths in an ordered format controlled by the network layer.
What do Cisco load balancers do?
Cisco load balancers allows a router to use multiple destination paths to a destination when forwarding packets. It is part of the wireless internet service provider network.
What is dynamic routing?
Routing refers to the process of moving packets of information across a network. Static and dynamic routing are the two types of routing algorithms used for this transfer of information.The term routing encapsulates two tasks. These tasks are deciding the paths for data transferred and sending the packets on these paths. The routing is a process that is a function carried out at layer 3 of the OSI reference model. The routing algorithm decides the output line to transfer the incoming packets. The routing algorithms are based on the routing protocol that uses metrics to assess whether a particular path is the optimal path available for transfer of the data packets. The metrics used for evaluating the paths are bandwidth, delay and reliability. The routing algorithms use these protocols to determine an optimal path from the source to the destination. The routing tables maintain all the information related to routing. There are various routing algorithms and depending on these routing algorithms, the information stored in the routing table varies. Every router has its own routing table and it fills this table with the required information to calculate the optimal path between the source router and the destination router. To understand the basic points of static vs dynamic routing, let us get to know what are routing tables.Routing tableA routing table is a document stored in the router or a network computer. The routing table is stored in the form of a database or is simply a file stored in the router. The data entered in the routing table is referred to when the best possible path to transfer information across two computers in a network is to be determined. The two classifications, viz., static and dynamic routing, are based on the way in which the routing tables are updated every time they are used. The routers in which the data is stored and updated manually are called static routers. On the other hand, the routers in which the information is changed dynamically, by the router itself, are referred to as dynamic routers. Let us compare the two types of routing algorithms based on the static and dynamic routing algorithm used, in the static vs. dynamic routing section given below.Static Vs. Dynamic RoutingStatic routing manually sets up the optimal paths between the source and the destination computers. On the other hand, the dynamic routing uses dynamic protocols to update the routing table and to find the optimal path between the source and the destination computers.The routers that use the static routing algorithm do not have any controlling mechanism if any faults in the routing paths. These routers do not sense the faulty computers encountered while finding the path between two computers or routers in a network. The dynamic routing algorithms are used in the dynamic routers and these routers can sense a faulty router in the network. Also, the dynamic router eliminates the faulty router and finds out another possible optimal path from the source to the destination. If any router is down or faulty due to certain reasons, this fault is circulated in the entire network. Due to this quality of the dynamic routers, they are also called adaptive routers.The static routing is suitable for very small networks and they cannot be used in large networks. As against this, dynamic routing is used for larger networks. The manual routing has no specific routing algorithm. The dynamic routers are based on various routing algorithms like OSPF (Open Shortest Path First), IGRP (Interior Gateway Routing Protocol) and RIP (Routing Information Protocol).The static routing is the simplest way of routing the data packets from a source to a destination in a network. The dynamic routing uses complex algorithms for routing the data packets.The static routing has the advantage that it requires minimal memory. Dynamic router, however, have quite a few memory overheads, depending on the routing algorithms used.The network administrator finds out the optimal path and makes the changes in the routing table in the case of static routing. In the dynamic routing algorithm, the algorithm and the protocol is responsible for routing the packets and making the changes accordingly in the routing table.Nowadays, the static routing is seldom used. With the technological advancements, the dynamic routing is used to route the packets in the network, efficiently. Thus, the above algorithm explains routing, routing tables and static vs dynamic routing.
