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Cisco 819 LTE Cellular Interface 0 Goes Down when no Trafic present on the interafce

plussier1
Level 1
Level 1

Hi,

I woulk like to know if it's normal that the interface cellular 0 goes Up only when trafic want to pass on it ?

I Use Gigabitehternet 0 like primary WAN interface and Cellular 0 interface like Backup.

I'm using Wan Failover with IP SLA command.

When the primary Wan-1 from interface Gigabitethernet 0 is UP, The cellular interface 0 look like not connected to the Telus LTE network.

If Wan-1 Goes Down, the router switch the route to the interface cellular 0 and the interface goes Up automatiquely.

The delay is predy quick, but i woulk like to know if it's ok to use it like that or if it's better that the interface cellular 0 stay always UP ?

If it's better that the Interface cellular 0 stay always UP, please let me know how to do that.

Please see the router config attached.

Thank You !