R3303-HP HSR6800 Routers Layer 3 - IP Routing Configuration Guide

269
# Configure the IBGP connection.
<RouterC> system-view
[RouterC] bgp 65009
[RouterC-bgp] router-id 3.3.3.3
[RouterC-bgp] peer 9.1.1.1 as-number 65009
# Enable GR capability for BGP.
[RouterC-bgp] graceful-restart
4. Verify the configuration:
Ping Router C on Router A. Meanwhile, perform an active/standby switchover on Router B. The
ping operation is successful during the whole switchover process.
BFD for BGP configuration
Network requirements
As shown in Figure 82,
• Configure OSPF as the IGP in AS 200.
• Establish two IBGP connections between Router A and Router C. When both links are working,
Router C adopts the link Router A<—>Router B<—>Router 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 Router A<—>Router D<—>Router C takes effect immediately.
Figure 82 Network diagram
Configuration procedure
1. Configure IP addresses for interfaces. (Details not shown.)
2. Configure OSPF so that Router A and Router C are reachable to each other. (Details not shown.)
3. Configure BGP on Router A:
# Establish two IBGP connections to Router C.
<RouterA> system-view
[RouterA] bgp 200
[RouterA-bgp] peer 3.0.2.2 as-number 200
[RouterA-bgp] peer 2.0.2.2 as-number 200
[RouterA-bgp] quit
GE2/1/1
2.0.1.1/24
GE2/1/2
2.0.2.2/24
Router A Router C
AS 200
Router D
GE2/1/1
2.0.1.2/24
GE2/1/2
2.0.2.1/24
GE2/1/2
3.0.1.1/24
GE2/1/2
3.0.1.2/24
GE2/1/1
3.0.2.1/24
GE2/1/1
3.0.2.2/24
Router B
AS 100 AS 300
1.1.1.0/24