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failover雙活

A/A模式HA

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關(guān)鍵點(diǎn):

1、A/A failover 利用了多模式,在不同的物理設(shè)備上active不同的虛墻以達(dá)到雙活目的

2、主要在primary節(jié)點(diǎn)做配置,secondary節(jié)點(diǎn)會(huì)從primary節(jié)點(diǎn)同步配置,包含system和context

3、secondary節(jié)點(diǎn)配置任務(wù)僅包括:多模式啟用、物理接口啟用、failover基本配置(啟用failover、指定為secondary節(jié)點(diǎn)、指定并命名failover lan接口,failover lan接口IP)

配置步驟

1、 準(zhǔn)備動(dòng)作:

primary節(jié)點(diǎn)和secondary節(jié)點(diǎn)都啟用多模式

啟用必要的物理接口

2、primary節(jié)點(diǎn)做failover配置

ciscoasa(config)# sh run failover

no failover

failover lan unit primary

failover lan interface fo-lan GigabitEthernet2

failover interface ip fo-lan 192.168.0.1 255.255.255.0 standby 192.168.0.2

failover group 1

preempt 60

failover group 2

secondary

preempt 60

最后,啟用failover

3、在primary節(jié)點(diǎn)構(gòu)造虛墻v1、v2,并分派虛墻關(guān)聯(lián)failover組

主設(shè)備:

ciscoasa(config)# sh run context

admin-context admin

context admin

config-url disk0:/admin.cfg

!

context v1

allocate-interface GigabitEthernet0 ifinside

allocate-interface GigabitEthernet1 ifoutside

config-url disk0:/v1.cfg

join-failover-group 1

!

context v2

allocate-interface GigabitEthernet3 ifinside

allocate-interface GigabitEthernet4 ifoutside

config-url disk0:/v2.cfg

join-failover-group 2

!

4、虛墻常規(guī)配置

只在primary節(jié)點(diǎn)做配置,啟用Failover后,secondary節(jié)點(diǎn)會(huì)copy該配置

changeto context v1

sh run

interface ifinside

nameif inside

security-level 100

ip address 20.0.1.1 255.255.255.0

!

interface ifoutside

nameif outside

security-level 0

ip address 5.5.5.5 255.255.255.0

!

changeto context v2

interface ifinside

nameif inside

security-level 100

ip address 30.0.1.1 255.255.255.0

!

interface ifoutside

nameif outside

security-level 0

ip address 6.6.6.6 255.255.255.0

!

5、確定primary節(jié)點(diǎn)failover狀態(tài)正常后,配置secondary節(jié)點(diǎn)基本failover工作參數(shù)

failover

failover lan unit secondary

failover lan interface fo-lan GigabitEthernet2

failover interface ip fo-lan 172.16.0.1 255.255.255.0 standby 172.16.0.2

6、等待配置同步,secondary節(jié)點(diǎn)failover狀態(tài)正常后,達(dá)到preempt閥值,secondary節(jié)點(diǎn)會(huì)接管group 2

本文標(biāo)題:failover雙活
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