Command Manual – MPLS
Quidway S8500 Series Routing Switches
Chapter 2 BGP/MPLS VPN Configuration Commands
Huawei Technologies Proprietary
2-47
Description
Use the
peer vpn-instance substitute-as
command to enable the BGP AS number
substitution on the PE.
Use the
undo peer vpn-instance substitute-as
command to disable the function.
By default, the BGP AS number substitution function is disabled.
After this function is enabled, when the PE advertises the specified peer the route
information and the routed AS path has the same AS number as that of the peer, the AS
number in the AS path will be replaced by the AS number of the PE before being
advertised.
These commands take effect once being executed.
Example
# Enable the BGP AS number substitution for the peer group 20.
[Quidway-bgp-af-vpn] peer 20 vpn-instance vrf1 substitute-as
2.1.57 policy vpn-target
Syntax
policy vpn-target
undo policy vpn-target
View
BGP-VPNv4 subaddress family view
Parameter
None
Description
Use the
policy vpn-target
command to configure to filter the VPN-target extended
community attributes of received routing information.
Use the
undo policy vpn-target
command to cancel the setting.
By default, the filtering of VPN-target extended community attribute is conducted.
Example
# Filter the VPN-target extended community attributes of the received routing
information.
[Quidway-bgp-af-vpn] policy vpn-target
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