3Com Switch 4800G 24-Port - BGP Configuration Examples

BGP Configuration Examples 395
Resetting BGP
Connections
Clearing BGP
Information
BGP Configuration
Examples
BGP Basic Configuration Network requirements
In the following figure are all BGP switches. Between Switch A and Switch B is an
EBGP connection. IBGP speakers Switch B, Switch C and Switch D are fully
meshed.
Network diagram
Figure 130 Network diagram for BGP basic configuration
To do… Use the command… Remarks
Reset all BGP connections reset bgp all Available in
user view
Reset the BGP connections to an AS reset bgp as-number
Reset the BGP connection to a peer reset bgp ip-address
[ flap-info ]
Reset all EBGP connections reset bgp external
Reset the BGP connections to a peer group reset bgp group group-name
Reset all IBGP connections reset bgp internal
Reset all IPv4 unicast BGP connections reset bgp ipv4 all
To do… Use the 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 [ regexp
as-path-regexp | as-path-acl
as-path-acl-number | ip-address
[ mask | mask-length ]]
Device Interface IP address Device Interface IP address
Switch A Vlan-int100 8.1.1.1/8 Switch D Vlan-int400 9.1.1.2/24
Vlan-int200 200.1.1.2/24 Vlan-int500 9.1.2.2/24
Switch B Vlan-int400 9.1.1.1/24 Switch C Vlan-int500 9.1.2.1/24
Vlan-int200 200.1.1.1/24 Vlan-int300 9.1.3.2/24
Vlan-int300 9.1.3.1/24
Vlan-int200
Switch A
AS 65008
Vlan-int200
Vlan-int100
Vlan-int300
Vlan-int400
Vlan-int400
Vlan-int500
Vlan-int500Vlan-int300
Switch C
Switch B
Switch D
AS 65009