free barcode generator microsoft excel Active/Active LBF Configuration: Step 5 in Software

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Active/Active LBF Configuration: Step 5
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Enabling active/active failover using LBF for the failover link is similar to configuring active/standby Failover is actually configured within the system area not in the two contexts In the system area, you ll need to enable the LBF interface and configure your failover commands:
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primary(config)# interface physical_LBF_if_name primary(config-if)# no shutdown primary(config-if)# exit primary(config)# failover lan enable primary(config)# failover lan unit primary primary(config)# failover lan interface logical_LBF_if_name physical_LBF_if_name primary(config)# failover interface ip logical_LBF_if_name primary_IP_addr net_mask standby secondary_IP_addr primary(config)# failover key encryption_key
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As you can see from the preceding, the commands are the same on the primary Notice that the commands are configured in the system area, not in a particular context And the LBF interface is assigned IP addressing in the system area this is one exception to the rule of assigning IP addresses when using contexts If you re using a PIX and will be using LBF, you ll need to execute the failover lan enable command Also, don t enable
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failover at this point; you ll need to create the failover groups first, which is discussed in the next step
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Active/Active LBF Configuration: Step 6
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In this step, you ll need to create two failover groups The function of a failover group is to determine what role, primary or secondary, an appliance will perform for an associated context For example, if you had contexts CTX1 and CTX2, you would make one context a member of failover group 1 and the other a member of group 2, splitting the roles primary and secondary between the two contexts This is only done on the primary unit and will be synchronized with the secondary unit, along with whatever contexts you create, across the failover link (LBF) NOTE The synchronization of the contexts themselves to the secondary is a great feature, since this really reduces the amount of configuration you ll have to do on the secondary appliance! To create your failover groups, use the following configuration:
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primary(config)# failover group 1 primary(config-fover-group)# primary primary(config-fover-group)# exit primary(config)# failover group 2 primary(config-fover-group)# secondary primary(config-fover-group)# exit
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To associate a failover group to a context, so that the appliance knows what role it should play for a context, use the following configuration:
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primary(config)# context context_name primary(confix-ctx)# join-failover-group {1 | 2} primary(confix-ctx)# exit
Once you ve associated the failover groups to the correct contexts, you can go ahead and enable failover on the primary:
primary(config)# failover
You can use the show failover command to verify your configuration:
primary# show failover [group group_#]
Optionally you can qualify the output, examining the failover information for a particular failover group (context)
Active/Active LBF Configuration: Step 7
Once the primary LBF configuration is complete, you re now ready to set up the secondary unit If you haven t already done this, you ll need to switch the secondary to multiple mode
23:
Failover
(mode multiple command) Once the secondary has switched to multiple mode, from the system area you can set up LBF The LBF configuration on the secondary is basically the same as step 5 on the primary the exception is the failover lan unit command
secondary(config)# interface physical_LBF_if_name secondary(config-if)# no shutdown secondary(config-if)# exit secondary(config)# failover lan enable secondary(config)# failover lan unit secondary secondary(config)# failover lan interface logical_LBF_if_name physical_LBF_if_name secondary(config)# failover interface ip logical_LBF_if_name primary_IP_addr net_mask standby secondary_IP_addr secondary(config)# failover key encryption_key secondary(config)# failover
Again note that you are in the system area when setting up LBF Also notice that you don t have to configure failover groups or contexts just enable failover with the failover command Once you ve done this, assuming you ve configured everything correctly, the secondary should connect to the primary, and the two should synchronize, where the secondary will automatically get this information from the primary
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