H3C Technologies H3C S10500 Series Switches - Manual (Page 270)

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3. Configure Switch C.
# Configure IP addresses for interfaces. (Details not shown)
# Configure the iBGP connection.
<SwitchC> system-view
[SwitchC] bgp 65009
[SwitchC-bgp] router-id 3.3.3.3
[SwitchC-bgp] peer 9.1.1.1 as-number 65009
# Enable GR capability for BGP.
[SwitchC-bgp] graceful-restart
4. Verify the configuration.
Ping Switch C on Switch A. Meanwhile, perform an active/standby MPU switchover on Switch B. The
ping operation is successful during the whole switchover process.
Configuring BFD for BGP
Network requirements
As shown in Figure 98 ,
• Configure OSPF as the IGP in AS 200.
• Establish two iBGP connections between Switch A and Switch C. When both links are working,
Switch C adopts the link Switch A<—>Switch B<—>Switch C to exchange packets with network
1.1.1.0/24. Configure BFD over the link. Then if the link fails, BFD can quickly detect the failure and
notify it to BGP. Then the link Switch A<—>Switch D<—>Switch C takes effect immediately.
Figure 98 Network diagram for BFD for BGP configuration
Device Interface IP address Device Interface IP address
Switch A Vlan-int100 3.0.1.1/24 Switch C Vlan-int101 3.0.2.2/24
Vlan-int200 2.0.1.1/24 Vlan-int201 2.0.2.2/24
Switch B Vlan-int100 3.0.1.2/24 Switch D Vlan-int200 2.0.1.2/24
Vlan-int101 3.0.2.1/24 Vlan-int201 2.0.2.1/24