Autonomous System

What Is autonomous system is a collection of internet protocol(it).
Asn autonomous system number:-
A unique asn is allocated to each as for use in bgp routing.
The asn uniquely identities each network on the internet.
What is metric:-
Routers use the lowest cost routes to reach a destination and for this work. Metric takes place in routing table for sending packet’s from best path.
Routes have more than one matric.
Rip metric:-
Hop count
Shortest path
Cost
Bandwidth
Lower cost.
BGP metrics:- uses  these protocol to send data by best path.
Weigth
Local preference
Aggregate
As-path legth
Origin type,  etc.
Routing protocols:-

Some routing protocols uses ip address a, b, c,.

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