autonomous system number

Bar Diagram Showing A 128 Kb/S Serial Link Split Into 25% Eigrp Traffic And 75% User Traffic Between R1 And R2
CCNA

How to Configure EIGRP Bandwidth Utilization

EIGRP doesn’t just calculate reachability — it also has to avoid consuming so much link bandwidth with its own routing traffic that it starves the actual user data the network exists to carry. By default, EIGRP caps itself at using half of an interface’s available bandwidth for its own hello packets and updates, but that...

Muhammad Khattak 8 min read
Diagram Showing An Autonomous System As A Group Of Networks Under One Administrative Control With A Single Routing Policy, Connected To Two Neighboring Autonomous Systems
CCNA

BGP’s ASN vs EIGRP’s “AS Number” — Same Name, Different Meaning

An Autonomous System Number (ASN) is a globally unique identifier assigned to an autonomous system — a group of networks under the administrative control of a single organization, presenting one common routing policy to the internet. The guidelines for creating, selecting, and registering an autonomous system are described in RFC 1930. This guide covers how...

Muhammad Khattak 8 min read
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