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How do you enable virtual mac (VMAC) on-the-fly on a cluster member?

A.
cphaprob set int fwha_vmac_global_param_enabled 1
Answers
A.
cphaprob set int fwha_vmac_global_param_enabled 1
B.
clusterXL set int fwha_vmac_global_param_enabled 1
Answers
B.
clusterXL set int fwha_vmac_global_param_enabled 1
C.
fw ctl set int fwha_vmac_global_param_enabled 1
Answers
C.
fw ctl set int fwha_vmac_global_param_enabled 1
D.
cphaconf set int fwha_vmac_global_param_enabled 1
Answers
D.
cphaconf set int fwha_vmac_global_param_enabled 1
Suggested answer: C

Explanation:

To enable VMAC mode on a cluster member, you need to set the value of the global kernel parameterfwha_vmac_global_param_enabledto 1. This can be done on-the-fly using the commandfw ctl set int fwha_vmac_global_param_enabled 1on all cluster members. This command does not require a reboot or a policy installation. VMAC mode allows the cluster to use a virtual MAC address for its virtual IP addresses, which reduces the number of gratuitous ARP packets sent upon failover and avoids ARP cache issues on some routers and switches.

Reference:How to enable ClusterXL Virtual MAC (VMAC) mode

asked 16/09/2024
Vinnie Meuldijk
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