314
273BCreating a sham link
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter OSPFv3 view.
ospfv3
[ process-id |
vpn-instance
vpn-instance-name ] *
N/A
3. Enter OSPFv3 area view.
area
area-id N/A
4. Configure an OSPFv3
sham link.
sham-link
source-ipv6-address
destination-ipv6-address [
cost
cost-value |
dead
dead-interval |
hello
hello-interval |
instance
instance-id |
ipsec-profile
profile-name |
keychain
keychain-name |
retransmit
retrans-interval |
trans-delay
delay ] *
By default, no sham links exist.
108B
Configuring BGP AS number substitution and
SoO attribute
When CEs at different sites have the same AS number, configure the BGP AS number substitution
feature to avoid route loss.
When a PE uses different interfaces to connect different CEs in a site, the BGP AS number
substitution feature 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 feature and the SoO attribute, see
"
844HBGP AS number substitution and SoO attribute."
To configure BGP AS number substitution and SoO attribute:
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter BGP instance view.
bgp
as-number [
instance
instance-name ]
[
multi-session-thread
]
N/A
3. Enter BGP-VPN instance
view.
ip vpn-instance
vpn-instance-name
N/A
4. Enable the BGP AS number
substitution feature.
peer
{ group-name | ipv6-address
[ prefix-length ] }
substitute-as
By default, BGP AS number
substitution is disabled.
5. Enter BGP-VPN IPv6 unicast
address family view.
address-family ipv6
[
unicast
]
N/A
6. (Optional.) Configure the
SoO attribute for a BGP peer
or peer group.
peer
{ group-name | ipv6-address
[ prefix-length ] }
soo
site-of-origin
By default, the SoO attribute is not
configured.
For more information about the commands in this section, see Layer 3—IP Routing Command
Reference.
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