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Clearing bgp information, Bgp configuration examples, Bgp basic configuration example – H3C Technologies H3C SR8800 User Manual

Page 255: Network requirements, Configuration procedure

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Task Command

Remarks

Reset all IPv4 unicast BGP connections.

reset bgp ipv4 all

Available in user
view

Clearing BGP information

Task Command

Remarks

Clear dampened MBGP routing
information and release suppressed
routes.

reset bgp dampening [ ip-address [ mask |
mask-length
] ]

Available in
user view

Clear route flap information.

reset bgp flap-info [ ip-address [ mask-length |
mask
] | as-path-acl as-path-acl-number |

regexp as-path-regular-expression ]

Available in
user view

BGP configuration examples

BGP basic configuration example

Network requirements

In

Figure 90

, run EBGP between Router A and Router B and IBGP between Router B and Router C so that

Router C can access the network 8.1.1.0/24 connected to Router A.

Figure 90 Network diagram

Configuration procedure

1.

Configure IP addresses for interfaces. (Details not shown)

2.

Configure IBGP:

{

To prevent route flapping caused by port state changes, this example uses loopback interfaces

to establish IBGP connections.

{

Because loopback interfaces are virtual interfaces, you need to use the peer connect-interface
command to specify the loopback interface as the source interface for establishing BGP

connections.

{

Enable OSPF in AS 65009 to make sure that Router B can communicate with Router C through
loopback interfaces.

# Configure Router B.

system-view

[RouterB] bgp 65009