7. Results

  1. From the Windows 10 Jumpbox command prompt type “dig www.f5demo.com” Repeat the command several times to see that the name resolution is alternating between 10.1.10.51 and 10.1.60.51.

    ../../_images/dc01_new_delegation_create_cname_results.png

  2. Observe Wide-IP statistics on dns.sitea: Statistics ›› Module Statistics : DNS : GSLB ›› Wide IPs : www.wip.f5demo.com : A (Note: The images show the Wide-IP as www.f5demo.com but you will have www.wip.f5demo.com in the lab. The TMSH commands reference the correct Wide-IP name)

    ../../_images/gtm1_site1_wideip_statistics_flyout.png ../../_images/gtm1_site1_wideip_statistics_detail.png

    TMSH

    tmsh show gtm wideip a www.wip.f5demo.com

  3. Observe Wide-IP statistics on dns.siteb: Statistics ›› Module Statistics : DNS : GSLB ›› Wide IPs : www.wip.f5demo.com : A

  4. Disable physical interfaces on dns.siteb:

    ../../_images/gtm1_site1_disable_interfaces.png

    TMSH

    tmsh modify net interface all disabled

  5. Refresh statistics on dns.sitea and make sure DNS requests are still resolving.

  6. Re-enable interfaces on dns.siteb, disable interfaces on dns.sitea. Observe statistics on dns.siteb and make sure DNS requests are still resolving.

    TMSH

    tmsh modify net interface all enabled

  7. Observe pool statistics on dns.siteb: Statistics ›› Module Statistics : DNS : GSLB ›› Pools : www.f5demo.com_pool : A

    ../../_images/results_pool_statistics.png

    TMSH

    show gtm pool a www.f5demo.com_pool

  8. Re-enable interfaces on dns.sitea

    TMSH

    tmsh modify net interface all enabled

  9. Using Putty on the Jumpbox, ssh into dns.sitea and run the following command to watch logs (use password ‘F5demo!!’ if prompted:

    TMSH

    tail -f /var/log/ltm