BGP Path Attributes and BGP Administrative Distance

BGP Path Attributes and BGP Administrative Distance

BGP Path Attributes

BGP uses BGP Path Attributes to determine the Best Path to a destination. According to BGP Best Path Algorithm, BGP Path Attributes are used to determine the BGP Best Path selection.

With these Path Attributes, network administrators can manage the BGP Traffic and determine way of the BGP traffic flow.

BGP Path Attributes divide into two groups. These classes are Well-Known and Optional path attributes. These two groups divide also into two subgroups again. These four BGP Path Attribute sub groups are:

* Well-Known Mandatory
* Well-Known Discretionary
* Optional Transtive
* Optional Non-Transitive

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Other BGP Overview Lessons:

BGP – Part 1
BGP – Part 2 (BGP Peers, BGP Sessions, BGP Messages)
BGP – Part 3 (IBGP, IBGP Topologies and EBGP)
BGP – Part 4 (BGP Administrative Distance and BGP Path Attributes)
BGP – Part 5 (Packet Tracer BGP Configuration Example)

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