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autonomous-system
Syntax
- autonomous-system autonomous-system <loops number> {
- independent-domain;
- }
Hierarchy Level
- [edit logical-systems logical-system-name routing-instances routing-instance-name routing-options],
- [edit logical-systems logical-system-name routing-options],
- [edit routing-instances routing-instance-name routing-options],
- [edit routing-options]
Release Information
Statement introduced before
JUNOS Release 7.4.
Description
Specify the
router’s AS number. Beginning with JUNOS Release 9.1, the numeric
range is extended to provide BGP support for 4-byte AS numbers as
defined in RFC 4893, BGP Support for Four-octet AS Number
Space.
Beginning with JUNOS Release 9.2, you can also configure a 4-byte
AS number using the AS-dot notation format of two integer values joined
by a period: <16-bit high-order value in decimal>.<16-bit low-order value in decimal>. For
example, the 4-byte AS number of 65,546 in plain-number format is
represented as 1.10 in the AS-dot notation format.
Options
-
autonomous-system—AS number. Use a number assigned to you by the Network Information
Center (NIC).
-
Range: 1 through 4,294,967,295 in plain-number format
-
Range: 0.0 through 65535.65535 in AS-dot notation format.
-
number—(Optional) Maximum
number of times this AS number can appear in an AS path.
-
Range: 1 through 10
-
Default: 1 (AS number can appear once)
 |
Note:
When you specify the same AS number in more
than one routing instance on the local router, you must configure
the same number of loops for the AS number in each instance. For example,
if you configure a value of 3 for the loops statement in
a VRF routing instance that uses the same AS number as that of the
master instance, you must also configure a value of 3 loops for the
AS number in the master instance.
Use the independent-domain option if the loops statement must be enabled only on a subset of routing instances.
|
-
The remaining statement is described separately in this chapter.
Usage Guidelines
See Configuring the AS Number.
Required Privilege Level
routing—To view this statement
in the configuration.
routing-control—To add this statement to
the configuration.
Related Topics
independent-domain
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