1. is there any best practice for configuring network failover? (e.g. dedicated vlan, 2 physical links as trunk for failover traffic, etc)in v10, i always use 2 pairs of unicast entry; one is on mgmt interface and the other one is on tmm interface. for tmm interface, i use dedicated vlan with one port if possible.
this sol is for viprion.
sol11939: Configuring network failover for redundant VIPRION systems
http://support.f5.com/kb/en-us/solutions/public/11000/900/sol11939.html
2. is that necessary to have a dedicated vlan for network mirroring traffic? otherwise where should they go though?if traffic is high, i would use dedicated vlan.
3. after enabling network failover, is it necessary to configure vlan failsafe? Without vlan failsafe, would failover be triggered if a network interface goes down?it is not necessary. without vlan failsafe, bigip won't failover even interface is down.
by the way, have you seen this sol before? hope it is helpful.
sol12277: Change in Behavior: How simultaneous failsafe events affect a redundant system
http://support.f5.com/kb/en-us/solutions/public/12000/200/sol12277