I have been discussing this topic with some people I work with and there seems to be some difference of opinion.
Failover: This terminology as cisco says:
The basic failover communication is through the failover cable or through the LAN interface which is configured with the failover lan interface interface_name command in PIX OS version 6.2 and later. Failover communication through the failover cable is message-based and needs to be reliable.
1- Can truck link be considered as failover link ? (i.e. Can we use these two terminology in interchangeably ?)
2- When we connect two switches (uplink) together through Ethernet cable we call them they have been cascaded, can we use same thing with fiber optic cable ?