Juniper J2300 User Manual page 373

Figure 91: Typical Network Using BGP Confederations
To configure the BGP confederations shown in Figure 91:
1.
2.
3.
4.
Table 128: Configuring BGP Confederations
Task
Navigate to the Routing-options level
in the configuration hierarchy.
Set the AS number to the sub-AS
number 64512.
The sub-AS number is a unique AS
number that is usually taken from the
pool of private AS numbers—64512
through 65535.
Navigate to the Confederation level in
the configuration hierarchy.
Set the confederation number to the AS
number 17.
Sub-AS 64512
EBGP
IGP
AS 17
Navigate to the top of the configuration hierarchy in either the J-Web or CLI
configuration editor.
Perform the configuration tasks described in Table 128.
If you are finished configuring the network, commit the configuration.
To check the configuration, see "Verifying a BGP Configuration" on page 344.
J-Web Configuration Editor
In the configuration editor hierarchy,
select Routing-options.
1.
In the AS Number box, enter the
sub-AS number.
2.
Click OK.
In the configuration
editor hierarchy, select
Routing-options>Confederation.
In the Confederation as box, enter 17.
Configuring BGP Networks with a Configuration Editor
Configuring BGP Sessions
Sub-AS 64513
IGP
CLI Configuration Editor
From the top of the configuration
hierarchy, enter
edit routing-options
Set the sub-AS number:
set autonomous-system 64512
From the top of the configuration
hierarchy, enter
edit routing-options confederation
Set the confederation AS number:
set 17
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