Information Technology Reference
In-Depth Information
Figure 7-4
Prefix Advertisement for Internal Peers
R3
R4
AS 200
Client
172.16.0.0/16
R6
RR
Client
R5
R7
eBGP
R8
AS 300
Physical
iBGP
•
Rule 7
—If a prefix comes to an RR from a client, the RR reflects the route to all other
clients and nonclients.
In Figure 7-5, the prefix 172.16.0.0/16 is advertised to R5 (RR) by R7 (client), and R5
readvertises or reflects the prefix to R6 (client), R3 (nonclient), and R4 (nonclient). As
always, R5 advertises the prefix to its external peer, R8 (Rule 2).
Figure 7-5
Prefix Advertisement for RR Clients
R3
R4
AS 200
Client
R6
RR
Client
172.16.0.0/16
R5
R7
eBGP
R8
AS 300
Physical
iBGP
