Hi all, Can anyone tell me the difference between using hsrp to track an interface, and putting the interfaces to want to make for redundancy in the same group, surely this would achieve the same thing ?
HSRP interface tracking is used to track the WAN connection on the router and in case of the WAN link failure making the active router which was forwarding the traffic as a standby router to the other routers become active and starts forwarding the traffic.Without WAN interface tracking, the router will not have any intelligent to make another router active, if its WAN interface fail and it will continue to forward the traffic which will eventually get drop. This is done by decreasing the priority of the active router lower than the standby router, so the other router becomes active.
By putting the interface in same group we actually make one interface as an active and other as standby.There will be a virtual Ip and MAC for each group and in case of an interface failure the other one will take care of forwarding the traffic and provides high-availability in the network.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.