1.13.3 配置OSPF发布聚合路由
如图:
<SwitchA> system-view
[SwitchA] router id 11.2.1.2
[SwitchA] ospf
[SwitchA-ospf-1] area 0
[SwitchA-ospf-1-area-0.0.0.0] network 11.2.1.0 0.0.0.255
[SwitchA-ospf-1-area-0.0.0.0] quit
[SwitchA-ospf-1] quit
<SwitchB> system-view
[SwitchB] router id 11.2.1.1
[SwitchB] ospf
[SwitchB-ospf-1] area 0
[SwitchB-ospf-1-area-0.0.0.0] network 11.2.1.0 0.0.0.255
[SwitchB-ospf-1-area-0.0.0.0] quit
[SwitchB-ospf-1] quit
<SwitchC> system-view
[SwitchC] router id 11.1.1.2
[SwitchC] ospf
[SwitchC-ospf-1] area 0
[SwitchC-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[SwitchC-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255
[SwitchC-ospf-1-area-0.0.0.0] quit
[SwitchC-ospf-1] quit
<SwitchD> system-view
[SwitchD] router id 10.3.1.1
[SwitchD] ospf
[SwitchD-ospf-1] area 0
[SwitchD-ospf-1-area-0.0.0.0] network 10.1.1.0 0.0.0.255
[SwitchD-ospf-1-area-0.0.0.0] network 10.3.1.0 0.0.0.255
[SwitchD-ospf-1-area-0.0.0.0] quit
<SwitchE> system-view
[SwitchE] router id 10.4.1.1
[SwitchE] ospf
[SwitchE-ospf-1] area 0
[SwitchE-ospf-1-area-0.0.0.0] network 10.2.1.0 0.0.0.255
[SwitchE-ospf-1-area-0.0.0.0] network 10.4.1.0 0.0.0.255
[SwitchE-ospf-1-area-0.0.0.0] quit
[SwitchE-ospf-1] quit
(3) 配置 BGP,引入 OSPF 和直连路由
[SwitchB] bgp 200
[SwitchB-bgp] peer 11.1.1.2 as 100
[SwitchB-bgp] address-family ipv4 unicast
[SwitchB-bgp-ipv4] import-route ospf
[SwitchB-bgp-ipv4] import-route direct
[SwitchB-bgp-ipv4] peer 11.1.1.2 enable #注意不要少了这句
[SwitchB-bgp-ipv4] quit
[SwitchB-bgp] quit
[SwitchC] bgp 100
[SwitchC-bgp] peer 11.1.1.1 as 200
[SwitchC-bgp] address-family ipv4 unicast
[SwitchC-bgp-ipv4] import-route ospf
[SwitchC-bgp-ipv4] import-route direct
[SwitchC-bgp-ipv4] peer 11.1.1.1 enable #注意不要少了这句
[SwitchC-bgp-ipv4] quit
[SwitchC-bgp] quit
(4) 在 Switch B 和 Switch C 上配置 OSPF 引入 BGP 路由
[SwitchB] ospf
[SwitchB-ospf-1] import-route bgp
[SwitchC] ospf
[SwitchC-ospf-1] import-route bgp
[SwitchA] display ip routing-table
(5) 在 Switch B 上配置路由聚合,只发布聚合路由 10.0.0.0/8。
[SwitchB-ospf-1] asbr-summary 10.0.0.0 8
[SwitchA] display ip routing-table
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