FQDN Node "flush"

I was kind of hoping for a timer that would flush out the record without any intervention

i thought you want to do it manually.

if not, doesn't interval work?

 trace

[root@ve11c:Active:In Sync] config  tcpdump -nni 0.0 -s0 port 53
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on 0.0, link-type EN10MB (Ethernet), capture size 65535 bytes
20:57:51.516574 IP 172.28.24.13.33233 > 8.8.8.8.53:  50723+ A? www.google.com. (32) out slot1/tmm0 lis=
20:57:51.522262 IP 8.8.8.8.53 > 172.28.24.13.33233:  50723 6/0/0 A 74.125.130.147, A 74.125.130.105, A 74.125.130.106, A 74.125.130.99, A 74.125.130.104, A 74.125.130.103 (128) in slot1/tmm0 lis=

20:58:51.506075 IP 172.28.24.13.59459 > 8.8.8.8.53:  50723+ A? www.google.com. (32) out slot1/tmm0 lis=
20:58:51.512165 IP 8.8.8.8.53 > 172.28.24.13.59459:  50723 5/0/0 A 173.194.117.81, A 173.194.117.80, A 173.194.117.84, A 173.194.117.82, A 173.194.117.83 (112) in slot1/tmm0 lis=

 configuration

[root@ve11c:Active:In Sync] config  date; tmsh list ltm node google* one-line | grep -iv 200.200.200
Tue May 12 20:58:02 SGT 2015
ltm node google { fqdn { autopopulate enabled interval 60 name www.google.com } state fqdn-up }
ltm node google-74.125.130.99 { address 74.125.130.99 ephemeral true fqdn { name www.google.com } }
ltm node google-74.125.130.103 { address 74.125.130.103 ephemeral true fqdn { name www.google.com } }
ltm node google-74.125.130.104 { address 74.125.130.104 ephemeral true fqdn { name www.google.com } }
ltm node google-74.125.130.105 { address 74.125.130.105 ephemeral true fqdn { name www.google.com } }
ltm node google-74.125.130.106 { address 74.125.130.106 ephemeral true fqdn { name www.google.com } }
ltm node google-74.125.130.147 { address 74.125.130.147 ephemeral true fqdn { name www.google.com } }
[root@ve11c:Active:In Sync] config 
[root@ve11c:Active:In Sync] config 
[root@ve11c:Active:In Sync] config  date; tmsh list ltm node google* one-line | grep -iv 200.200.200
Tue May 12 20:58:57 SGT 2015
ltm node google { fqdn { autopopulate enabled interval 60 name www.google.com } state fqdn-up }
ltm node google-173.194.117.80 { address 173.194.117.80 ephemeral true fqdn { name www.google.com } }
ltm node google-173.194.117.81 { address 173.194.117.81 ephemeral true fqdn { name www.google.com } }
ltm node google-173.194.117.82 { address 173.194.117.82 ephemeral true fqdn { name www.google.com } }
ltm node google-173.194.117.83 { address 173.194.117.83 ephemeral true fqdn { name www.google.com } }
ltm node google-173.194.117.84 { address 173.194.117.84 ephemeral true fqdn { name www.google.com } }