Bgp Configuration Examples; Clearing Bgp Information; Bgp Basic Configuration - 3Com S7906E Configuration Manual

Reset the BGP connections to a peer
group
Reset all iBGP connections
Reset all IPv4 unicast BGP connections

Clearing BGP Information

To do...
Clear dampened MBGP routing
information and release suppressed
routes
Clear route flap information

BGP Configuration Examples

BGP Basic Configuration

Network requirements
In the following network, run eBGP between Switch A and Switch B and iBGP between Switch B and
Switch C so that Switch C can access the network 8.1.1.0/24 connected to Router A.
Figure 1-20 Network diagram for BGP basic configuration (on switches)
Configuration procedure
1) Configure IP addresses for interfaces (omitted)
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 ensure that Switch B can communicate with Switch C through
loopback interfaces.
# Configure Switch B.
To do... Use the command...
reset bgp group group-name
reset bgp internal
reset bgp ipv4 all
Use the command...
reset bgp dampening [ ip-address [ mask |
mask-length ] ]
reset bgp flap-info [ ip-address
[ mask-length | mask ] | as-path-acl
as-path-acl-number | regexp
as-path-regular-expression ]
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