Configuring Bgp As Number Substitution And Soo Attribute - HP HPE FlexNetwork MSR Router Series Configuration Manual

Step
9. (Optional.) Configure
filtering of received
routes.
Configuring BGP AS number substitution and
SoO attribute
When CEs at different sites have the same AS number, configure the BGP AS number substitution
function to avoid route loss.
When a PE uses different interfaces to connect different CEs in a site, the BGP AS number
substitution function introduces a routing loop. To remove the routing loop, configure the SoO
attribute on the PE.
For more information about the BGP AS number substitution function and the SoO attribute, see
"BGP AS number substitution and SoO
To configure BGP AS number substitution and SoO attribute:
Step
1. Enter system view.
2. Enter BGP view.
3. Enter BGP-VPN instance
view.
4. Enable the BGP AS number
substitution function.
5. Enter BGP-VPN IPv6 unicast
address family view.
6. (Optional.) Configure the
SoO attribute for a BGP peer
or peer group.
For more information about the commands in this section, see Layer 3—IP Routing Command
Reference.
Displaying and maintaining IPv6 MPLS L3VPN
You can soft-reset or reset BGP sessions to apply new BGP configurations. A soft reset operation
updates BGP routing information without tearing down BGP connections. A reset operation updates
BGP routing information by tearing down, and then re-establishing BGP connections. Soft reset
requires that BGP peers have route refresh capability.
Execute the following commands in user view to soft reset or reset BGP connections:
Task
Manually soft reset BGP sessions for
VPNv6 address family.
Reset BGP sessions for VPNv6
address family.
Command
filter-policy { acl6-number | prefix-list
ipv6-prefix-name } import
attribute."
Command
system-view
bgp as-number
ip vpn-instance
vpn-instance-name
peer { group-name | ipv6-address
[ prefix-length ] } substitute-as
address-family ipv6 [ unicast ]
peer { group-name | ipv6-address
[ prefix-length ] } soo site-of-origin
Command
refresh bgp { ip-address [ mask-length ] | all | external | group
group-name | internal } { export | import } vpnv6
reset bgp { as-number | ip-address [ mask-length ] | all | external
| internal | group group-name } vpnv6
355
Remarks
By default, BGP does not filter
received routes.
Remarks
N/A
N/A
N/A
By default, BGP AS number
substitution is disabled.
N/A
By default, the SoO attribute is not
configured.