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      華為：OSPF虛鏈路技術(shù)
        用戶投稿  ?  ? 社會(huì)
      華為：OSPF虛鏈路技術(shù)
      1. 每臺(tái)設(shè)備上配置接口以及環(huán)回口地址：
      R1:
      interface GigabitEthernet0/0/0
       ip address 10.0.12.1 255.255.255.0
      #
      interface GigabitEthernet0/0/1
       ip address 10.0.13.1 255.255.255.0
      #
      interface LoopBack0
       ip address 10.0.1.1 255.255.255.255
      R2:
      interface GigabitEthernet0/0/0
       ip address 10.0.12.2 255.255.255.0
      #
      interface GigabitEthernet0/0/2
       ip address 10.0.23.2 255.255.255.0
      #
      interface LoopBack0
       ip address 10.0.2.2 255.255.255.255
      R3:
      interface GigabitEthernet0/0/0
       ip address 10.0.34.3 255.255.255.0
      #
      interface GigabitEthernet0/0/1
       ip address 10.0.13.3 255.255.255.0
      #
      interface GigabitEthernet0/0/2
       ip address 10.0.23.3 255.255.255.0
      #
      interface LoopBack0
       ip address 10.0.3.3 255.255.255.255
      R4:
      interface GigabitEthernet0/0/0
       ip address 10.0.34.4 255.255.255.0
      #
      interface LoopBack0
       ip address 10.0.4.4 255.255.255.255
      2. 每臺(tái)設(shè)備上配置ospf協(xié)議，并劃好區(qū)域：
      R1:
      ospf 1 router-id 10.0.1.1
       area 0.0.0.0
       network 10.0.12.0 0.0.0.255
       network 10.0.1.1 0.0.0.0
       area 0.0.0.1
       network 10.0.13.0 0.0.0.255
      R2:
      ospf 1 router-id 10.0.2.2
       area 0.0.0.0
       network 10.0.2.2 0.0.0.0
       network 10.0.12.0 0.0.0.255
       area 0.0.0.1
       network 10.0.23.0 0.0.0.255
      R3:
      ospf 1 router-id 10.0.3.3
       area 0.0.0.1
       network 10.0.3.3 0.0.0.0
       network 10.0.23.0 0.0.0.255
       network 10.0.13.0 0.0.0.255
       area 0.0.0.2
       network 10.0.34.0 0.0.0.255
      R4:
      ospf 1 router-id 10.0.4.4
       area 0.0.0.2
       network 10.0.4.4 0.0.0.0
       network 10.0.34.0 0.0.0.255
      3. 使用虛鏈路使區(qū)域2與區(qū)域-邏輯相連：
      R1:
      ospf 1
       area 0.0.0.1
       vlink-peer 10.0.3.3
      R2:
      ospf 1
       area 0.0.0.1
       vlink-peer 10.0.3.3
      R3:
      ospf 1
       area 0.0.0.1
       vlink-peer 10.0.2.2
       vlink-peer 10.0.1.1
      此時(shí)R1、R2能ping通R4
      [R1]ping 10.0.4.4
      PING 10.0.4.4: 56 data bytes, press CTRL_C to break
      Reply from 10.0.4.4: bytes=56 Sequence=1 ttl=254 time=40 ms
      Reply from 10.0.4.4: bytes=56 Sequence=2 ttl=254 time=40 ms
      4. 優(yōu)先使用路徑R4-R3-R1，并以R4-R3-R2路徑為備份路徑：
      R3:
      interface GigabitEthernet0/0/2
       ospf cost 10
      R2:
      interface GigabitEthernet0/0/2
       ospf cost 10
      5. 使用虛鏈路作為區(qū)域0鏈路的冗余備份
      目前，R1與R2之間只有單條鏈路連接，如果出現(xiàn)鏈路故障，就會(huì)導(dǎo)致區(qū)域0被分割的問(wèn)題。為了解決這一問(wèn)題，增強(qiáng)網(wǎng)絡(luò)的可靠性，可以以區(qū)域1為傳輸區(qū)域，在R1與R2之間建立–條虛鏈路作為冗余備份。
      R1:
      ospf 1
       area 0.0.0.1
       vlink-peer 10.0.1.1
      R2:
      ospf 1
       area 0.0.0.1
       vlink-peer 10.0.2.2
      6. 配置虛鏈路的認(rèn)證功能
      R1:
      ospf 1
       area 0.0.0.1
       vlink-peer 10.0.3.3 hmac-md5 1 plain huawei
       vlink-peer 10.0.2.2 hmac-md5 1 plain huawei
      R2:
      ospf 1
       area 0.0.0.1
       vlink-peer 10.0.1.1 hmac-md5 1 plain huawei
       vlink-peer 10.0.3.3 hmac-md5 1 plain huawei
      R3:
      ospf 1
       area 0.0.0.1
       vlink-peer 10.0.1.1 hmac-md5 1 plain huawei
       vlink-peer 10.0.2.2 hmac-md5 1 plain huawei
      最終配置：
      R1:
      sysname R1
      #
      interface GigabitEthernet0/0/0
       ip address 10.0.12.1 255.255.255.0
      #
      interface GigabitEthernet0/0/1
       ip address 10.0.13.1 255.255.255.0
      #
      interface LoopBack0
       ip address 10.0.1.1 255.255.255.255
      #
      ospf 1 router-id 10.0.1.1
       area 0.0.0.0
       network 10.0.12.0 0.0.0.255
       network 10.0.1.1 0.0.0.0
       area 0.0.0.1
       network 10.0.13.0 0.0.0.255
       vlink-peer 10.0.3.3 hmac-md5 1 plain huawei
       vlink-peer 10.0.2.2 hmac-md5 1 plain huawei
      #
      R2:
      sysname R2
      #
      interface GigabitEthernet0/0/0
       ip address 10.0.12.2 255.255.255.0
      #
      interface GigabitEthernet0/0/2
       ip address 10.0.23.2 255.255.255.0
       ospf cost 10
      #
      interface LoopBack0
       ip address 10.0.2.2 255.255.255.255
      #
      ospf 1 router-id 10.0.2.2
       area 0.0.0.0
       network 10.0.2.2 0.0.0.0
       network 10.0.12.0 0.0.0.255
       area 0.0.0.1
       network 10.0.23.0 0.0.0.255
       vlink-peer 10.0.1.1 hmac-md5 1 plain huawei
       vlink-peer 10.0.3.3 hmac-md5 1 plain huawei
      #
      R3:
      sysname R3
      #
      interface GigabitEthernet0/0/0
       ip address 10.0.34.3 255.255.255.0
      #
      interface GigabitEthernet0/0/1
       ip address 10.0.13.3 255.255.255.0
      #
      interface GigabitEthernet0/0/2
       ip address 10.0.23.3 255.255.255.0
       ospf cost 10
      #
      interface LoopBack0
       ip address 10.0.3.3 255.255.255.255
      #
      ospf 1 router-id 10.0.3.3
       area 0.0.0.1
       network 10.0.3.3 0.0.0.0
       network 10.0.23.0 0.0.0.255
       network 10.0.13.0 0.0.0.255
       vlink-peer 10.0.1.1 hmac-md5 1 plain huawei
       vlink-peer 10.0.2.2 hmac-md5 1 plain huawei
       area 0.0.0.2
       network 10.0.34.0 0.0.0.255
      #
      R4:
      sysname R4
      #
      interface GigabitEthernet0/0/0
       ip address 10.0.34.4 255.255.255.0
      #
      interface LoopBack0
       ip address 10.0.4.4 255.255.255.255
      #
      ospf 1 router-id 10.0.4.4
       area 0.0.0.2
       network 10.0.4.4 0.0.0.0
       network 10.0.34.0 0.0.0.255
      #
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