Hi, all
Now I'm reviewing BGP 4 for the upcoming BSCN test. I'm getting
nervous about it.
In p.17 of RFC1771, what does "one route" mean? What's the difference
between one route and one destination? Or should "route" be replaced
with "path" as is used in BSCN book?
An UPDATE message can advertise at most one route, which may be
described by several path attributes. All path attributes contained
in a given UPDATE messages apply to the destinations carried in the
Network Layer Reachability Information field of the UPDATE message.
But in the next paragraph, "route" is used as "destination".
An UPDATE message can list multiple routes to be withdrawn from
service. Each such route is identified by its destination
(expressed
as an IP prefix), which unambiguously identifies the route in the
context of the BGP speaker - BGP speaker connection to which it has
been previously been advertised.
I hope somebody out there will clarify this to me.
Thanks in advance.
Jaeheon
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