Some virtual servers are not working after failover, all network configuration are identically on both devices.

Question

I am preparing for 301a exam and i had this question.

An LTM specialit is troubleshooting an issue afger a failover occurs. Some virtual servers are not working after failover and others works good, all network configuration are identically on both devices, wich feature should be configured to solve this issue.

disable vlan failsafe on all vlans
enable mac Masquerade
disable ARP caching on both LTM devices

nut2889 · Answer

Hi,&nbsp;I will do not answer you. But this link will guide you to find an answer https://techdocs.f5.com/content/kb/en-us/products/big-ip_ltm/manuals/product/bigip-device-service-clustering-admin-11-5-0/8.html

richardgamboa92 · Answer

Hi Nut, THnk you for your help, I checked the link and i had only obne doubt, we can not disable ARP caching on F5 device right? the only thing that we can do is CLEAR the arp cache, am i right?

nut2889 · Answer

Hi,&nbsp;I know the answer but i suggest you to read about F5 fail-over machanism by include device service clustering and traffic-group conceptual. If you understand the conceptual it will help you to know the answer.&nbsp;

Forum Discussion

Some virtual servers are not working after failover, all network configuration are identically on both devices.

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