Configuration prerequisites – H3C Technologies H3C S12500 Series Switches User Manual
Page 230
214
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view or BGP-VPN
instance view.
•
Enter BGP view:
bgp as-number
•
Enter BGP-VPN instance view:
a.
bgp as-number
b.
ipv4-family vpn-instance
vpn-instance-name
Use either method.
3.
Configure manual route
summarization.
aggregate ip-address { mask |
mask-length } [ as-set |
attribute-policy route-policy-name
| detail-suppressed | origin-policy
route-policy-name |
suppress-policy
route-policy-name ]*
Not configured by default.
Advertising a default route to a peer or peer group
After this task is configured, the BGP router sends a default route with the next hop being itself to the
specified peer or peer group.
To advertise a default route to a peer or peer group:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter BGP view or BGP-VPN
instance view.
•
Enter BGP view:
bgp as-number
•
Enter BGP-VPN instance view:
a.
bgp as-number
b.
ipv4-family vpn-instance
vpn-instance-name
Use either method.
3.
Advertise a default route to a
peer or peer group.
peer { group-name | ip-address }
default-route-advertise
[ route-policy route-policy-name ]
Not advertised by default.
Configuring BGP route distribution/reception filtering policies
Configuration prerequisites
You must configure the following filters as needed:
•
ACL
•
IP prefix list
•
Routing policy
•
AS path list