bgp口字形选路
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bgp口字形选路
口字形BGP 选路配置案例
1 组网拓扑：
2 组网搭建：
利用H3CSE 虚拟实验室拓扑来搭建共用路由器4台。
3实验目的RT9 发布的9.9.9.9 的BGP 路由沿着一条路径转发到让RT10 10.10.10.10
4 组网配置脚本:
RT1:
di cur
#
version 5.20, Alpha 1011
#
sysname rt1
#
password-control login-attempt 3 exceed lock-time 120
#
undo voice vlan mac-address 00e0-bb00-0000
#
ipsec cpu-backup enable
#
undo cryptoengine enable
#
firewall enable
#
domain default enable system
#
vlan 1
#
domain system
access-limit disable
state active
idle-cut disable
self-service-url disable
#
acl number 2000
rule 0 deny source 9.9.9.9 0
#
interface Ethernet0/1/0
port link-mode route
#
interface Serial0/2/0
link-protocol ppp
ip address 10.1.12.1 255.255.255.0 # interface Serial0/2/1
link-protocol ppp
ip address 10.1.100.1 255.255.255.0 # interface Serial0/2/2
link-protocol ppp
#
interface Serial0/2/3
link-protocol ppp
ip address 10.1.19.1 255.255.255.0 # interface NULL0
#
interface Ethernet0/4/0
port link-mode bridge
#
interface Ethernet0/4/1
port link-mode bridge
#
interface Ethernet0/4/2
port link-mode bridge
#
interface Ethernet0/4/3
port link-mode bridge
#
interface Ethernet0/4/4
port link-mode bridge
#
interface Ethernet0/4/5
port link-mode bridge
#
interface Ethernet0/4/6
port link-mode bridge
#
interface Ethernet0/4/7
port link-mode bridge
#
bgp 200
default local-preference 200 undo synchronization
peer 10.1.19.9 as-number 100 group 200 internal
peer 10.1.100.10 group 200 #
load xml-configuration
#
user-interface con 0
user-interface vty 0 4
#
return
RT9
dis cur
#
version 5.20, Alpha 1011
#
sysname rt2009
#
password-control login-attempt 3 exceed lock-time 120 # undo voice vlan mac-address 00e0-bb00-0000
#
ipsec cpu-backup enable
#
undo cryptoengine enable
#
domain default enable system
#
vlan 1
#
domain system
access-limit disable
state active
idle-cut disable
self-service-url disable
#
interface Ethernet0/1/0
port link-mode route
#
interface Serial0/2/0
link-protocol ppp
ip address 10.1.19.9 255.255.255.0 # interface Serial0/2/1
link-protocol ppp
ip address 10.1.89.9 255.255.255.0 # interface NULL0
#
interface LoopBack0
ip address 9.9.9.9 255.255.255.255 # interface Ethernet0/4/0
port link-mode bridge
#
interface Ethernet0/4/1
port link-mode bridge
#
interface Ethernet0/4/2
port link-mode bridge
#
interface Ethernet0/4/3
port link-mode bridge
#
interface Ethernet0/4/4
port link-mode bridge
#
interface Ethernet0/4/5
port link-mode bridge
#
interface Ethernet0/4/6
port link-mode bridge
#
interface Ethernet0/4/7
port link-mode bridge
#
bgp 100
undo synchronization
peer 10.1.89.8 as-number 200
peer 10.1.19.1 as-number 200
#
ip community-list 1 permit 11
#
load xml-configuration
#
user-interface con 0
user-interface vty 0 4
#
return
RT8
di cur
#
version 5.20, Alpha 1011
#
sysname rt8
#
password-control login-attempt 3 exceed lock-time 120 # undo voice vlan mac-address 00e0-bb00-0000
#
ipsec cpu-backup enable
#
undo cryptoengine enable
#
domain default enable system
#
vlan 1
#
domain system
access-limit disable
state active
idle-cut disable
self-service-url disable
#
interface Ethernet0/1/0
port link-mode route
#
interface Serial0/2/0
link-protocol ppp
#
interface Serial0/2/1
link-protocol ppp
#
interface Serial0/2/2
link-protocol ppp
#
interface Serial0/2/3
link-protocol ppp
ip address 10.1.89.8 255.255.255.0 # interface NULL0
#
interface Ethernet0/4/0
port link-mode bridge
#
interface Ethernet0/4/1
port link-mode bridge
#
interface Ethernet0/4/2
port link-mode bridge
#
interface Ethernet0/4/3
port link-mode bridge
#
interface Ethernet0/4/4
port link-mode bridge
#
interface Ethernet0/4/5
port link-mode bridge
#
interface Ethernet0/4/6
port link-mode bridge
#
interface Ethernet0/4/7
port link-mode bridge
#
bgp 200
undo synchronization
peer 10.1.100.10 as-number 200 peer 10.1.89.9 as-number 100 undo peer 10.1.100.10 enable group 200 internal peer 10.1.80.10 group 200
peer 10.1.80.10 next-hop-local
#
load xml-configuration
#
user-interface con 0
user-interface vty 0 4
#
return
RT10
di cur
#
version 5.20, Alpha 1011
#
sysname rt10
#
password-control login-attempt 3 exceed lock-time 120 # undo voice vlan mac-address 00e0-bb00-0000
#
ipsec cpu-backup enable
#
undo cryptoengine enable
#
domain default enable system
#
gvrp
#
vlan 1
#
domain system
access-limit disable
state active
idle-cut disable
self-service-url disable
#
interface Serial0/2/0
link-protocol ppp
#
interface Serial0/2/1
link-protocol ppp
ip address 10.1.100.10 255.255.255.0 #
interface Serial0/2/2
link-protocol ppp
#
interface Serial0/2/3
link-protocol ppp
#
interface Serial0/2/4
link-protocol ppp
#
interface Serial0/2/5
link-protocol ppp
#
interface Serial0/2/6
link-protocol ppp
#
interface Serial0/2/7
link-protocol ppp
#
interface Serial0/2/8
link-protocol ppp
ip address 10.1.80.10 255.255.255.0
#
interface NULL0
#
interface LoopBack0
ip address 10.10.10.10 255.255.255.255 # interface Ethernet0/4/0
port link-mode bridge
#
interface Ethernet0/4/1
port link-mode bridge
#
interface Ethernet0/4/2
port link-mode bridge
#
interface Ethernet0/4/3
port link-mode bridge
#
interface Ethernet0/4/4
port link-mode bridge
#
interface Ethernet0/4/5
port link-mode bridge
#
interface Ethernet0/4/6
port link-mode bridge
#
interface Ethernet0/4/7
port link-mode bridge
#
bgp 200
network 10.10.10.10 255.255.255.255 undo synchronization group 200 internal
peer 10.1.100.1 group 200 peer 10.1.80.8 group 200 #
ip as-path 1 deny 1
#
load xml-configuration #
user-interface con 0
user-interface vty 0 4
#
return。