299
# Verify that CE 1 can ping the IPv6 address 4::4 (loopback interface address) of CE 2. (Details not
shown.)
BFD for IPv6 BGP configuration example
Network requirements
As shown in Figure 77, configure OSPFv3 as the IGP in AS 200.
• 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 1200::0/64.
• Configure BFD over the path. When the path fails, BFD can quickly detect the failure and notify
it to IPv6 BGP. Then, the path Switch A<—>Switch D<—>Switch C takes effect immediately.
Figure 77 Network diagram
Table 18 Interface and IP address assignment
Device Interface IP address Device Interface IP address
Switch A Vlan-int100 3000::1/64 Switch C Vlan-int101 3001::3/64
Vlan-int200 2000::1/64 Vlan-int201 2001::3/64
Switch B Vlan-int100 3000::2/64 Switch D Vlan-int200 2000::2/64
Vlan-int101 3001::2/64 Vlan-int201 2001::2/64
Configuration procedure
1. Configure IPv6 addresses for interfaces. (Details not shown.)
2. Configure OSPFv3 so that Switch A and Switch C can reach each other. (Details not shown.)
3. Configure IPv6 BGP on Switch A:
# Establish two IBGP connections to Switch C.
<SwitchA> system-view
[SwitchA] bgp 200
[SwitchA-bgp] router-id 1.1.1.1
[SwitchA-bgp] peer 3001::3 as-number 200
Switch A Switch C
AS 200
Switch D
Vlan-int200
Vlan-int201
Switch B
AS 300
Vlan-int101Vlan-int100
Vlan-int100
Vlan-int101
Vlan-int200
Vlan-int201
AS 100
1200::0/64
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