Bfd For Bgp Configuration Example - HP HPE FlexNetwork 7500 series Configuration Manual

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BFD for BGP configuration example

Network requirements
As shown in
Establish two IBGP connections between Switch A and Switch C. When both paths operate
correctly, Switch C uses the path Switch A<—>Switch B<—>Switch C to exchange packets
with network 1.1.1.0/24.
Configure BFD over the path. When the path fails, BFD can quickly detect the failure and notify
it to BGP. Then, the path Switch A<—>Switch D<—>Switch C takes effect immediately.
Figure 77 Network diagram
AS 100
1.1.1.0/24
Table 19 Interface and IP address assignment
Device
Switch A
Switch B
Configuration procedure
1.
Configure IP addresses for interfaces. (Details not shown.)
2.
Configure OSPF to ensure that Switch A and Switch C are reachable to each other. (Details not
shown.)
3.
Configure BGP on Switch A:
# Establish two IBGP connections to Switch C.
<SwitchA> system-view
[SwitchA] bgp 200
[SwitchA-bgp-default] peer 3.0.2.2 as-number 200
[SwitchA-bgp-default] peer 2.0.2.2 as-number 200
[SwitchA-bgp-default] address-family ipv4 unicast
[SwitchA-bgp-default-ipv4] peer 3.0.2.2 enable
Figure
77, configure OSPF as the IGP in AS 200.
Vlan-int100
Switch A
Interface
IP address
Vlan-int100
3.0.1.1/24
Vlan-int200
2.0.1.1/24
Vlan-int100
3.0.1.2/24
Vlan-int101
3.0.2.1/24
Switch B
Vlan-int100
Vlan-int101
AS 200
Vlan-int200
Vlan-int201
Vlan-int200
Vlan-int201
Switch D
Device
Switch C
Switch D
345
Vlan-int101
AS 300
Switch C
Interface
IP address
Vlan-int101
3.0.2.2/24
Vlan-int201
2.0.2.2/24
Vlan-int200
2.0.1.2/24
Vlan-int201
2.0.2.1/24

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