I ever tried to configure Box-to-Box redundancy CSS11506 and CS-100(Arrow point). It was successfully tested.
It looks have no problem to make redundancy between CSS11500 series and CSS 11000 Series.
By the way, when I have tested Redundancy Between CSS11506 and CSS11800, failed to work.
Is there anyone who try this configuration?
My results are following.
circuit VLAN 1
description "OUT SIDE"
redundancy
ip address A.B.C.254/24
circuit VLAN 2
description " Firewall Load balancing"
redundancy
ip address F.F.F.1/24
circuit VLAN 3
description " Redundancy"
ip add 10.1.1.2/24
redundancy-protocol
There were no arp list about device at outside.
It is sure that no service is.
Topology is following.
Router----L2-Switch---CSS 11506andCSS11800---two Firewalls----CSS11506andCSS11506