What is BGP attribute & How many types of attributes are
used by BGP???
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Answer Posted / shahin
BGP attributes is a metric used to describe the
characteristics of a BGP paths. Attributes are conatained in
update messages passed between BGP peers for advertise routers.
BGP attributes are broadly divided into two types -
a) Well Known
b) Optional.
Well Known attributes are divided into two types -
a) Mandatory
b) Descretionary
** Mandatory attributes are divided into three types -
a) AS Path
b) Next Hop
c) Origin
** Origin attributes divided into three types -
a) Internal(i)
b) External(e)
c) Incomplete(?)
** Descretionary attributes are divided into two types -
a) Local Preference
b) Atomic Aggregate
Optional attributes are divided into two types -
a) Transitive
b) Non Transitive
** Transitive attributes are divided into two types -
a) Aggregator
b) Community
** Community attributes are divided into for types -
a) No-export
b) No advertise
c) Internet
d) Local AS.
&& Non transitive attributes are divided into three types -
a) MED (Multi Exit Discriminator).
b) Originator
d) Cluster ID.
I'll explain all attributes on next post..!!!
| Is This Answer Correct ? | 79 Yes | 9 No |
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