What Is The Difference Between Interior And Exterior Routing Protocols?

What Is The Difference Between Interior And Exterior Routing Protocols
Interior and Exterior Gateway Protocols Gateway protocols from the exterior are used to connect the various Autonomous Systems (ASs). The majority of the time, a basic definition of the border router describes it as a router with a foot in two worlds: one leading to the Internet and the other located within the organization (hence the name, border router ).

Figure 6.7 depicts four separate ASs supported by the routers in their respective clouds. Within each cloud, a single router connects to the ISP and its AS. These are the border routers for each autonomous system, and they must execute both the outside gateway protocol (in this example, BGP) and the inner gateway protocol.

There may be other setups, such as several pathways to the Internet, but this example clarifies the concept. Relationships between interior and outside routing assignments are depicted in Figure 6.7. Each router utilizing an outside routing protocol keeps the ASs apart from one another.

This also results in the ability to safeguard a segment of the network from potential mistakes or misconfigurations. Let’s begin by discussing interior routing protocols, their primary categories of distance vector and connection state, and the significance of their operation. This will be a brief overview designed to give you a fundamental knowledge of the topic.

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What distinguishes Exterior Gateway Protocol EGP from Interior Gateway Protocol?

Hi * What is the protocol for the Interior gateway? The interior gateway protocols are essentially the routing protocols used internally within a firm and not over the Internet to exchange information within the same autonomous system. These protocols include RIP, OSPF, EIGRP, and IS-IS.

  • What is the protocol for the Exterior Gateway? EGP is typically used on the Internet, and BGP is the sole protocol categorized as EGP between various AS.
  • Although BGP is documented as iBGP (routers sharing the same AS) and eBGP (communication between distinct AS), it is still considered an EGP.
  • What differentiates IGP and EGP? Exterior Gateway Protocol and Interior Gateway protocols are used to send data packets across networks employing routable protocols such as Internet Protocol; they are distinct from one another.
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Interior Gateway Protocol is utilized to route packets across networks with the same autonomic system number. While the external Gateway Protocol is capable of passing data packets to networks with different autonomous system numbers, the exterior Gateway Protocol cannot.

What differentiates routing protocols from one another?

A Routed Protocol is a network protocol that may be used to transmit user data from one network to another. Routed Protocol transports user traffic including e-mails, file transfers, and web traffic, among others. Routed protocols employ an addressing scheme (for instance, IP Address) that may address a specific network and a host (computer, server, network printer, etc.) within that network.

In other words, the address used by a Routed Protocol (for instance, IP (Internet Protocol)) consists of both a network address and a host (a machine within the network) component. IP (Internet Protocol) is the most commonly employed Routed Protocol. Internet’s routing protocol is IP (either IPv4 or IPv6).

Other Routed protocols are being phased out in the networking sector. A Routed Protocol is a fundamental component of the network protocol suite and is present on every network-communicating device (Example, Routers, Switches, Computers etc).

What is the difference between the outside gateway routing protocol EGP and the interior gateway routing protocol IGP?

Multiple Areas Connected by Routers Comprise an OSPF AS – AS border routers running OSPF learn about external routes using exterior gateway protocols (EGPs), such as Exterior Gateway Protocol (EGP) or Border Gateway Protocol (BGP), or by configuration information. For further information on these protocols.

Dissimilarities between OSPF and BGP

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OSPF is a sort of hierarchical network architecture or topology. OSPF favors the quickest path above the shortest one. Open Shortest Path First uses the Internet protocol: BGP is a mesh topology or design type. Border gateway protocol favors the optimal route.

S. No. OSPF BGP
1. OSPF stands for Open Shortest Path First. BGP stands for Border Gateway Protocol.
2. The implementation of OSPF is easy. While the implementation of BGP is difficult.
3. OSPF is a fast concurrence. While BGP is a slow concurrence.
4. OSPF is type of hierarchical network topology or design. While it is the type of mesh topology or design.
5. It is also called as internal gateway protocol. While it is called as external gateway protocol.
6. In OSPF internet protocol is used. While in this, Transmission control protocol is used.
7. It works in 89 port number. While it works in 179 port number.
8. OSPF is a Link State type. While it is a Vector State type.
9. In OSPF Dijkstra algorithm is used. While in this Best path algorithm is used.
10. OSPF prefers fastest path rather than shortest path. While It prefers best path.
11. It requires device resources- CPU and memory. It relies for the device resources type on the size of routing table, although it scales better.
12. Its metric is determined by bandwidth. Its metric is determined using AS path, IGP-Metric, Next Hop, Weight, etc.
13. It is used mainly for small networks that can be managed centrally. It is for large networks such as Internet.
14. It prefers fastest path over shortest path. It prefers best path.
15. The training cost involved is less. The training cost is comparatively more than OSPF.
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Distinction between OSPF and BGP

What are the many kinds of routing?

Static Routing is one of the three kinds of routing. Standard Routing. Adaptive Routing.