Hi, Could anyone tell me more about cisco “backup interface” command used for ?
For example :-
Router(config)# int gi0/0
Router(config-if)# backup interface gi0/1
Router(config-if)# ip address 10.10.10.1 255.255.255.0
Router(config)# int gi0/1
Router(config-if)# ip address 10.10.10.1 255.255.255.0
With the above configurations, interface gi0/0 is my current active link, and the link status for gi0/1 is standby. Once the gi0/0 link is down, interface gi0/1 will automatically takeover and be the active link.
So i can also achieving link redundancy by using and configure the backup interface command, my guts tell me this is not same with either HSRP, VRRP or GLBP. (am i right?). So what is the technologies or protocol am i using ?
Can “backup interface” be consider as same with the others redundancy link protocols such as HSRP, VRRP or GLBP, or are totally different one ?
Thank you so much for the help.