Same logic on routers and L3 switches no difference:
DR Election -> The router with the highest ospf priority (per interface value, 0-255, default 1 and can be changed using ip ospf priority under the interface, and 0 means never), and if tie, the router with the highest RouterID (manually set via router-id, or the highest loopback/physical interface).
As best practice if you want to make sure that a certain router (L3 switch) is always the DR, configure the priority of the router (L3 switch) that you don't want to be the DR to be 0, thus it will never get into the election and you will be dead sure that the other will be the DR with no chances for the first router to boot to be the DR (since OSPF DR election doesn't apply preemption).
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.