Local-As - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

local-as

Syntax
Hierarchy Level
Release Information
Description
Options
Copyright © 2010, Juniper Networks, Inc.
local-as autonomous-system <loops number> <private | alias> <no-prepend-global-as>;
[edit logical-systems logical-system-name protocols bgp],
[edit logical-systems logical-system-name protocols bgp group group-name],
[edit logical-systems logical-system-name protocols bgp group group-name neighbor address],
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols
bgp],
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols
bgp group group-name],
[edit logical-systems logical-system-name routing-instances routing-instance-name protocols
bgp group group-name neighbor address],
[edit protocols bgp],
[edit protocols bgp group group-name],
[edit protocols bgp group group-name neighbor address],
[edit routing-instances routing-instance-name protocols bgp],
[edit routing-instances routing-instance-name protocols bgp group group-name],
[edit routing-instances routing-instance-name protocols bgp group group-name neighbor
address]
Statement introduced before Junos OS Release 7.4.
Statement introduced in Junos OS Release 9.0 for EX Series switches.
alias option introduced in Junos OS Release 9.5.
option introduced in Junos OS Release 9.6.
no-prepend-global-as
Set the local AS number.
In Junos OS Release 9.1 and later, the autonomous system (AS) numeric range in
plain-number format is extended to provide BGP support for 4-byte AS numbers, as
defined in RFC 4893, BGP Support for Four-octet AS Number Space.
In Junos OS Release 9.3 and later, 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 65546 in plain-number format is represented as 1.10 in the AS-dot notation format.
alias —(Optional) Configure the local AS as an alias of the global AS number configured
for the router at the
[edit routing-options]
considers any local AS to which it is assigned as equivalent to the primary AS number
configured for the routing device. When you use the
or local) used to establish the BGP session is prepended in the AS path sent to the
BGP neighbor.
—AS number.
autonomous-system
Range: 1 through 4,294,967,295 (2
Range: 0.0 through 65535.65535 in AS-dot notation format
—(Optional) Specify the maximum number of times that the local AS
loops number
number can appear in an AS path received from a BGP peer. For
value from 1 through 10.
Chapter 79: Configuration Statements for Layer 3 Protocols
hierarchy level. As a result, a BGP peer
alias
32
– 1) in plain-number format
option, only the AS (global
, include a
number
2079