Box to Box mode is an Active/standby configuration.
For active-active Virtual interface redundancy is used (Where CSS serves as master of one virtual router and backup to a differnt VR)
Box to Box Redundancy
When to Use:
?When Active/Standby is the expected behavior.
?When a dedicated 10/100 link can be configured link between the CSS?s
?When Configuration-Synchronization is needed
When not to use:
?When Active/Active is needed
?When a dedicated 10/100 link between CSS?s cannot be used.
?Lack of 10/100 ports, or the switches are too far apart.
Hope it helps
Syed Iftekhar Ahmed
