Rip is characterized as what type of routing protocol

They are separated by different classful network addresses When R1 forwards an update to R2, RIPv1 does not include the subnet mask information with the update; it only forwards the class B network address R2 receives and processes the update. It then creates and adds an entry for the class B Figure R2 Adds the Entry for When R3 forwards an update to R2, it also does not include the subnet mask information and therefore only forwards the classful network address R2 receives and processes the update and adds another entry for the classful network address When there are two entries with identical metrics in the routing table, the router shares the load of the traffic equally among the two links.

This is known as load balancing. Discontiguous networks have a negative impact on a network. For example, a ping to This pattern would continue until the ping command is done. Modern networks no longer use classful IP addressing and the subnet mask cannot be determined by the value of the first octet.

IPv6 routing protocols are classless. The distinction whether a routing protocol is classful or classless typically only applies to IPv4 routing protocols.

All IPv6 routing protocols are considered classless because they include the prefix-length with the IPv6 address. Figures through illustrate how classless routing solves the issues created with classful routing. Figure R2 Adds the Entry for the Figure Entry for the In the discontiguous network design of Figure , the classless protocol RIPv2 has been implemented on all three routers.

In Figure , R2 receives, processes, and adds two entries in the routing table. The first line displays the classful network address This is known as the parent route. The second entry displays the VLSM network address This is referred to as the child route. Parent routes never include an exit interface or next-hop IP address. R2 receives, processes, and adds another child route entry There are cases when a routing protocol learns of more than one route to the same destination.

To select the best path, the routing protocol must be able to evaluate and differentiate between the available paths. This is accomplished through the use of routing metrics.

A metric is a measurable value that is assigned by the routing protocol to different routes based on the usefulness of that route. Routing protocols determine the best path based on the route with the lowest cost.

Different routing protocols use different metrics. The metric used by one routing protocol is not comparable to the metric used by another routing protocol. Two different routing protocols might choose different paths to the same destination. For example, assume that PC1 wants to send a packet to PC2. In Figure , the RIP routing protocol has been enabled on all routers and the network has converged.

RIP makes a routing protocol decision based on the least number of hops. Therefore, when the packet arrives on R1, the best route to reach the PC2 network would be to send it directly to R2 even though the link is much slower that all other links. In Figure , the OSPF routing protocol has been enabled on all routers and the network has converged. OSPF makes a routing protocol decision based on the best bandwidth.

Therefore, when the packet arrives on R1, the best route to reach the PC2 network would be to send it to R3, which would then forward it to R2.

Intermediate system-to-intermediate system IS-IS differentiate among levels such as level 1and level 2. The routing protocol can be changed without contacting the intra area routing protocol. Bitcoin Trading Australia. Your email address will not be published. There are three major types of routing protocols. Ask the Community. Need to Contact Support? See Support Options. Contact Support. Select a product or category below for specific instructions. N Routers. RIPv2 is a little more sophisticated than this and sends its routing table on to a multicast address.

RIPv2 also uses authentication to keep data more secure and chooses a subnet mask and gateway for future traffic. The main limitation of RIP is that it has a maximum hop count of 15 which makes it unsuitable for larger networks.

See also: LAN Monitoring tools. IGRP was designed to build on the foundations laid down on RIP to function more effectively within larger connected networks and removed the 15 hop cap that was placed on RIP.

IGRP uses metrics such as bandwidth, delay, reliability, and load to compare the viability of routes within the network. IGRP is ideal for larger networks because it broadcasts updates every 90 seconds and has a maximum hop count of This allows it to sustain larger networks than a protocol like RIP. IGRP is also widely used because it is resistant to routing loops because it updates itself automatically when route changes occur within the network. The SPF routing algorithm is used to calculate the shortest path spanning-tree to ensure efficient data transmission of packets.

OSPF routers maintain databases detailing information about the surrounding topology of the network. LSAs are packets that detail information about how many resources a given path would take.

OSPF also uses the Dijkstra algorithm to recalculate network paths when the topology changes. This protocol is also relatively secure as it can authenticate protocol changes to keep data secure. Topology changes are tracked and OSPF can recalculate compromised packet routes if a previously-used route has been blocked. Exterior Gateway Protocol or EGP is a protocol that is used to exchange data between gateway hosts that neighbor each other within autonomous systems.

In other words, EGP provides a forum for routers to share information across different domains. The most high profile example of an EGP is the internet itself. The routing table of the EGP protocol includes known routers, route costs, and network addresses of neighboring devices. The EGP protocol works by keeping a database of nearby networks and the routing paths it could take to reach them.

This route information is sent on to connected routers. Once it arrives, the devices can update their routing tables and undertake more informed path selection throughout the network. Neighbors are queried for a route and when a change occurs the router notifies its neighbors about the change.

This has the end result of making neighboring routers aware of what is going on in nearby devices. Packet transmissions are made more effective because routes are recalculated to speed up the convergence process.

Border Gateway Protocol or BGP is the routing protocol of the internet that is classified as a distance path vector protocol. However many administrators choose to change routing decisions to criteria in line with their needs.

The best routing path selection algorithm can be customized by changing the BGP cost community attribute. BGP only sends updated router table data when something changes.