netwyman

Routing is a process in which the layer 3 devices (either router or layer 3 switch) finds the optimal path to deliver a packet from one network to another. Dynamic routing protocols uses metric, cost and hop count to identify the best path from the path available for destination network. Below are the types of Routing Protocol: - Distance Vector Routing Protocol RIP IGRP - Link State Routing Protocol OSPF IS-IS - Advanced Distance vector routing protocol EIGRP Distance Vector Routing Protocol: Distance vector protocols usually send the complete routing table to each neighbor (a neighbor is directly connected router that runs the same routing protocol). They employ some version of Bellman-Ford algorithm to calculate the best routes. Compared with link state routing protocols. Distance vector protocols are easier to configure and require little management, but are susceptible to routing loops and converge slower than the link s...

Access control list (ACL) is a list of permissions attached to an object. An ACL specifies which users or system processes are granted access to objects, as well as what operations are allowed on given objects or you can say for each rule we have two conditions and that is Permit or Deny. Access List Access-list (ACL) is a set of rules defined for controlling the network traffic and reducing network attack. ACLs are used to filter traffic based on the set of rules defined for the incoming or out going of the network. Types of ACL: Standard Access List: Extended Access List: Standard Access List- These are the Access-list which are made using the source IP address only. These ACLs permit or deny the entire protocol suite. They don’t distinguish between the IP traffic such as TCP, UDP, Https etc. By using numbers 1-99 or 1300-1999, router will understand it as a standard ACL and the specified address as source IP address. Extended Access List- These are the ACL which uses b...

Dynamic routing Protocol performs the same function as static routing Protocol does. In dynamic routing Protocol, if the destination is unreachable then an another entry, in the routing table, to the same destination can be used. One of the routing Protocol is EIGRP. EIGRP: Enhanced Interior Gateway Routing Protocol (EIGRP)  is a dynamic routing Protocol which is used to find the best path between any two layer 3 device to deliver the packet. EIGRP works on network layer Protocol of osi model and uses the protocol number 88.It uses metric to find out best path between two layer 3 device (router or layer 3 switch) operating EIGRP.   EIGRP uses the Diffusing-Update Algorithm (DUAL) to determine the most efficient ( least cost ) route to a destination. A DUAL  finite state machine  contains decision information used by the algorithm to determine the least-cost route (which considers distance and whether a destination path is loop-free). Routers running EIGR...

Routing Protocol : A  routing protocol  is an algorithm that gives a  Router  the ability to learn (dynamically) about specific existing networks around it (or even the Internet). Practically, these  routing protocols  help routers learn dynamically about each other without the need for an administrator to intervene. How Routing Protocol Works? In all network the Routing Protocol perform below functions: 1.     Discovery  – identify other routers on the network 2.     Route management  – keep track of all the possible destinations (for network messages) along with some data describing the pathway of each 3.     Path determination  – make dynamic decisions for where to send each network message A few routing protocols (called link-state protocols) enable a router to build and track a full map of all network links in a region while others (called distance...