Bgp Confederation Configuration Example - H3C LS-5100-16P-SI-OVS-H3 Configuration

Routing
H3C Low-End Ethernet Switches Configuration Examples

2.1.5 BGP Confederation Configuration Example

I. Network requirements
1) Requirement analysis
BGP runs in a large AS of a company. As the number of IBGP peers increases rapidly in
the AS, more network resources for BGP communication are occupied. The customer
hopes to reduce IBGP peers and decrease the CPU and network resources
consumption of BGP without affecting device performance.
Based on user requirements, configure a BGP confederation to achieve the goal.
2) Network diagram
Figure 2-5
Device
Switch A
Switch B
Switch C
Switch D
Switch E
Figure 2-5 Network diagram for BGP AS confederation configuration
3) Configuration plan
Split AS 100 into three sub-ASs: AS 1001, AS 1002, and AS 1003.
Run EBGP between AS 1001, AS1002, and AS 1003.
AS 1001, AS1002, and AS 1003 are fully meshed within themselves by running
IBGP.
Run EBGP between AS 100 and AS 200.
II. Configuration procedure
# Configure Switch A.
shows the network diagram.
Interface
Vlan-int 10
Vlan-int 50
Vlan-int 10
Vlan-int 10
Vlan-int 20
Vlan-int 30
Vlan-int 20
Vlan-int 30
Vlan-int 40
Chapter 2 Configuration Examples
IP address
172.68.10.1/24
10.1.1.1/24
172.68.10.2/24
172.68.10.3/24
172.68.1.1/24
156.10.1.1/24
172.68.1.2/24
156.10.1.2/24
8.1.1.1/24
2-9
AS
100
200