Peer Substitute-As - HP 6125XLG Command Reference Manual

Blade switch layer 3 - ip routing
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[Sysname-bgp] peer test as-number 100
[Sysname-bgp] peer test route-update-interval 10
# In BGP-VPN instance view, specify the interval for sending the same update to peer group test as 10
seconds.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ip vpn-instance vpn1
[Sysname-bgp-vpn1] peer test route-update-interval 10

peer substitute-as

Use peer substitute-as to replace the AS number of a peer or peer group in the AS_PATH attribute with
the local AS number.
Use undo peer substitute-as to restore the default.
Syntax
peer { group-name | ip-address | ipv6-address } substitute-as
undo peer { group-name | ip-address | ipv6-address } substitute-as
Default
The AS number of a peer or peer group in the AS_PATH attribute is not replaced.
Views
BGP view, BGP-VPN instance view
Predefined user roles
network-admin
Parameters
group-name: Specifies a peer group by its name, a case-sensitive string of 1 to 47 characters. The peer
group must have been created.
ip-address: Specifies a peer by its IP address. The peer must have been created.
ipv6-address: Specifies a peer by its IPv6 address. The peer must have been created.
Usage guidelines
In MPLS L3VPN, if EBGP is used between PE and CE, sites in different geographical areas must have
different AS numbers assigned to ensure correct route advertisement. If different CEs use the same AS
number, you must configure the relevant PE to replace the AS number of the CE as its own AS number to
ensure correct advertisement of private network routes.
Examples
# In BGP view, substitute the local AS number for the AS number of peer 1.1.1.1.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] peer 1.1.1.1 substitute-as
# In BGP-VPN instance view, substitute the local AS number for the AS number of peer 1::1.
<Sysname> system-view
[Sysname] bgp 100
[Sysname-bgp] ip vpn-instance vpn1
302

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