I have two CSM 4.1(5) in CatOS 6509 configured in router mode.
I have configured one client VLAN and 2 servers VLANs (with aliases IP adresses), and an ft dedicated gigabit link.
The configuration is the same for both server VLANS :
vlan z server
ip address x.x.x.x x.x.x.x
alias y.y.y.y y.y.y.y
The logs show an IP address conflict for one server VLAN with the alias IP address configured for this VLAN, whereas there is no problem for the other server VLAN.
This problem causes the CSM going to active-active configuration for a very short time (1sec) and then going back to active-backup situation during about 30 sec.
Does anybody have an idea about the problem ? I could not find any documentation to know if more than one server VLAN with an alias could cause a problem in router mode or an issue related to that.