What is autonomous system in BGP?

What is the difference between ASN and IP?

My thinking is that with IP a router can pass traffic off, if you have an IP for something you should be able to set up ports on the same network and just use it to communicate and have a server set up as well.

So what about ASN's? Does having an IP for the subnet require a full service layer which allows someone to come through and do traffic?
It's just my theory, not sure if it'll even work at all. My ISP's DHCP assigns a 192.168.10.123 IP to one of their clients and 192.234 to another.

No, a single asn=IP number will not route traffic. You can assign several IP numbers to your subnet without any "service layer" to it, eg: asn-ip range subnet ip dns-ip. 1 192.0 - 192.255 172.42 8.2
The router assigned to the subnet knows that a specific IP addresses is mapped to an ASN, but it does not know that the IP is mapping to any particular service.

What is autonomous system in BGP?

Question: ?

Answer: Autonomous System (AS) defines the scope of IP address space. It is a grouping of IP address space and can be assigned to different autonomous systems. Autonomous system gives unique and distinct identifier for IP address space. You can assign this identifier in two ways:

You can assign this identifier in a way that will be used by all BGP peers and network devices. You can create one or more ASes with separate BGP neighbors, each of which will operate as a single AS with a different address space. In the first method, the assigned number is called as Autonomous System Number (ASN). For example: Autonomous System Number 1 is assigned from 100.0 to 127.255

Autonomous System Number 2 is assigned from 128.0 to 191.255

Autonomous System Number 3 is assigned from 192.0 to 223.255

Autonomous System Number 4 is assigned from 224.0 to 239.255

Autonomous System Number 5 is assigned from 240.0 to 255.255

The second method, which creates separate ASes, is commonly used in larger networks. In this case, the assigned number is called as Autonomous System Identifier (ASID). For example:

ASID 1 is assigned from 100.255 ASID 2 is assigned from 128.255 ASID 3 is assigned from 192.255 ASID 4 is assigned from 224.255 ASID 5 is assigned from 240.255 What are Network Design Principles in BGP? Question: What are Network Design Principles in BGP? Answer: BGP network design principles are very important in every network. They are mainly for achieving the best possible network behavior by maximizing the benefits of BGP.

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