Unless multicast routing is active, multicast normally stops at L3.
As to switches treating multicast the same as broadcast, those without any multicast snooping do. Those with snooping treat multicast more like unicast, i.e. only forwarded where desired, the switch blocks needless multicast streams.
Most modern Enterprise level switches have the capability to block needless multicast to hosts (e.g. IGMP snooping). Some also support blocking needless multicast to routers (e.g. PIM snooping).
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.